AWS – Solution Architect Associate Level Certification - Mock Test

Pregunta 1 de 94

1

How do you secure company critical data on S3
(choose 4 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can use IAM Policies
You can use Bucket Policies
You can use Access Control Lists (ACLs)
You can use the Server Side Encryption (SSE)
You can serve it through CloudFront

Explicación

Pregunta 2 de 94

1

How to secure data on rest in EBS
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

EBS automatically encrypts data on it for more security
You can use your own encryption layer on the top
Use S3 instead
Block the EC2 to access data to your EBS

Explicación

Pregunta 3 de 94

1

You have a photo selling website where you have a library of photos on S3. You noticed that there are some websites that are showing the link to your S3 photos. How do you restrict sites like these using your S3 photos link?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Use CloudFront to serve images
Restrict access to those websites in the bucket policy
Use Glacier to store images
Restrict access to those websites in the IAM policy
Remove the public URL link from the object in S3

Explicación

Pregunta 4 de 94

1

In which of the following cases should you use SQS – Simple Queue Service?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Designing a business application which requires a lot of co-ordination between different tasks
Video encoding application where each video is encoded with a pre-defined number of steps
Receiving thousands of notifications from a process and add them to a queue
Process a queue of messages where each message is a task that needs to be completed

Explicación

Pregunta 5 de 94

1

How do you ensure that the data has been saved properly in S3?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Every S3 account has a predefined bucket where the logs are stored
When processing a request to store data, the service will redundantly store your object across multiple facilities before returning SUCCESS.
You can see the HTTP success code in the logs
Using a combination of Content-MD5 checksums

Explicación

Pregunta 6 de 94

1

You are running an application on an EC2 and now you want to add another EC2 for your application that requires a high bandwidth connect with the existing EC2. Where should you launch your EC2 in this case?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

VPC
Public Subnet
Private Subnet
Placement Group
Availability Zone

Explicación

Pregunta 7 de 94

1

Where should you use SWF – Simple Workflow Service?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Designing a business application which requires a lot of co-ordination between different tasks
Video encoding application where each video is encoded with a pre-defined number of steps
Receiving thousands of notifications from a process and add them to a queue
Process a queue of messages where each message is a task that needs to be completed

Explicación

Pregunta 8 de 94

1

What services are required for Auto Scaling?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

SNS
CloudWatch
SQS
ELB

Explicación

Pregunta 9 de 94

1

Your web application is using Auto Scaling and Elastic Load Balancer.
You want to monitor the application to ensure that it maintain a good quality of service for your customers, defined by the application’s page load time.

What metric in AWS CloudWatch can best be used for this?
(choose one correct answer)
(Origin Number: 71)

Selecciona una de las siguientes respuestas posibles:

Latency reported by the Elastic Load Balancer(ELB)
Request count reported by ELB
Aggregate networking for the web tier
Aggregate CPU Utilisation for the web tier

Explicación

Pregunta 10 de 94

1

Amazon Glacier is designed for
(chose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Active database storage.
Infrequently accessed data.
Data archives.
Frequently accessed data.
Cached session data.

Explicación

Pregunta 11 de 94

1

An instance is launched into the public subnet of a VPC. Which of the following must be done in order for it to be accessible FROM the Internet?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Attach an Elastic IP to the instance
Nothing. The instance is accessible from the Internet
Launch a NAT instance and route all traffic to it
Make an entry in the route table passing all traffic going outside the VPC to the NAT instance

Explicación

Pregunta 12 de 94

1

In VPCs with private and public subnets, database servers should ideally be launched into?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

The public subnet
The private subnet
Either of them
Not recommended, they should ideally be launched outside VPC

Explicación

Pregunta 13 de 94

1

What are the benefits of using ElastiCache for you web application?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

It reduces the load on your web servers
It reduces the load on your database
Gives you more availability of cached data when your Multi-AZ RDS is under maintenance
Gives you faster access to your cache data

Explicación

Pregunta 14 de 94

1

You configured ELB to perform health checks on EC2 instances. If an instance fails to pass health checks, which statement will be true?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

The instance is replaced automatically by the ELB.
The instance gets terminated automatically by the ELB.
The ELB stops sending traffic to the instance that failed its health check.
The instance gets quarantined by the ELB for root cause analysis.

Explicación

Pregunta 15 de 94

1

What are the characteristics of DynamoDB?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

It is used for SQL databases like MsSQL, MySQL, Oracle
Gives you a fast and predictable performance with seamless scalability
It is a managed service provided by AWS
When reading data from Amazon DynamoDB, users can specify whether they want the read to be eventually consistent or strongly consistent
There is a limit of stored data or throughput of data

Explicación

Pregunta 16 de 94

1

You have a business critical application that requires it to be highly available with 6 instances always running. What should you do to achieve this?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

2 EC2 in 3 regions with ELB on top
3 EC2 in 2 AZ with ELB on top
Auto Scaling rule for 6 instances always running
Auto scaling rule for 3 instance always running in each zone
Auto Scaling Replace the lost capacity in case of zone failure in the other zone
Auto Scaling Replace the lost capacity in case of region failure in other region

Explicación

Pregunta 17 de 94

1

What are the characteristics of Elastic Beanstalk?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can use it to replace an instance in the ELB when it fails its health check
Helps you quickly deploy and manage applications in the AWS cloud
It creates a template for your EC2 instance
You don’t need to worry about the infrastructure required to run your applications

Explicación

Pregunta 18 de 94

1

How do you achieve single sign on with AWS?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

It is configurable in the IAM policies for the user
By Using Multi-factor authentication
By Using Active Directory and LDAP integration
By Configuring SAML 2.0
It is currently not possible in AWS

Explicación

Pregunta 19 de 94

1

What is true about VPC?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can have one EC2 in more than 1 VPC
There will always be atleast 1 default VPC
A VPC is always across multiple availability zones within a region
You can either have a VPC with public subnet or private subnet
You may use a third party software VPN to create a site to site or remote access VPN connection with your VPC via the Internet Gateway

Explicación

Pregunta 20 de 94

1

You are building a system to distribute confidential training videos to employees. Using CloudFront, what method could be used to serve content that is stored in S3, but not publically accessible from S3 directly?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Create an Origin Access Identity (OAI) for CloudFront and grant access to the objects in your S3 bucket to that OAI.
Add the CloudFront account security group “amazon-cf/amazon-cf-sg” to the appropriate S3 bucket policy.
Create an Identity and Access Management (IAM) User for CloudFront and grant access to the objects in your S3 bucket to that IAM User.
Create a S3 bucket policy that lists the CloudFront distribution ID as the Principal and the target bucket as the Amazon Resource Name (ARN).

Explicación

Pregunta 21 de 94

1

An instance is connected to an ENI (Elastic Network Interface) in one subnet. What happens when you attach an ENI of a different subnet to this instance?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

The instance follows the rules of the older subnet
The instance follows the rules of both the subnets
The instance follows the rules of the newer subnet
Not possible cannot be connected to 2 ENIs

Explicación

Pregunta 22 de 94

1

How do you point apex record of your website (example.com) to the public DNS of the Elastic Load Balancer?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

A Record
CNAME record
AAAA record
Alias
NS Record

Explicación

Pregunta 23 de 94

1

Which of the following will occur when an EC2 instance in a VPC (Virtual Private Cloud) with an associated Elastic IP is stopped and started?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

The Elastic IP will be dissociated from the instance
All data on instance-store devices will be lost
All data on EBS (Elastic Block Store) devices will be lost
The ENI (Elastic Network Interface) is detached
The underlying host for the instance may change

Explicación

Pregunta 24 de 94

1

You are running an ERP application on EC2 for your company that runs 24x7 and the load is predictable and constant throughout the year. Which is the most cost-efficient option for the EC2 purchase model in this case?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

On-Demand
Reserved
Dedicated
Spot
EC2 is not the right choice here

Explicación

Pregunta 25 de 94

1

What are the characteristics of EBS?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can attach one EBS volume to multiple EC2 instance
Data in EBS is stored across multiple AZ for redundancy
Maximum size of an EBS can be 1 TB
You can have provisioned IOPS with your EBS volumes
EBS behaves like raw unformatted block device

Explicación

Pregunta 26 de 94

1

You notice that you are not able to access your EC2 linux instance using SSH. What should you check first?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Make sure that the patches are up to date on the instance
Make sure the port 22 are open on the subnet for incoming traffic
Make sure the port 22 are open on the subnet for outgoing traffic
Make sure the port 22 are open on the security group for incoming traffic
Make sure the port 22 are open on the security group for outgoing traffic

Explicación

Pregunta 27 de 94

1

What is true about AMI?
(choose 4 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can share your AMI with other AWS account owners
You can create an instance store-backed AMI
You can create an EBS-backed AMI
For Instance stored-backed AMIs, the root volume is stored in S3
For EBS stored-backed AMIs, the root volume is stored in S3

Explicación

Pregunta 28 de 94

1

What is true about RDS?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can create multiple read replica for ready heavy applications
You can have a read replica of a read replica
Daily backups are automatically taken
You can enable Multi-AZ option to have automatic failover in a different region
You can have provisioned IOPS for your RDS database

Explicación

Pregunta 29 de 94

1

What are the characteristics of IAM?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

By Default all the services are enabled for a new IAM user
By Default all the services are disabled for a new IAM user
You can create multiple access ID and secret keys for 1 IAM user

Explicación

Pregunta 30 de 94

1

What are the characteristics of VPC subnets?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

network traffic entering and exiting each subnet can be allowed or denied via network Access Control Lists (ACLs)
A subnet can be across multiple availability zones
A subnet can be across multiple regions
Default subnets are assigned a /20 netblocks
Default subnets are assigned a /16 netblocks

Explicación

Pregunta 31 de 94

1

You have created 4 weighted resource record sets with weights 1, 2, 3 and 4. the 3rd record set is selected by Route53?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

1/7th of the time
3/10th of the time
3/7th of the time
1/4th of the time

Explicación

Pregunta 32 de 94

1

Which of the following can be used as an origin server in CloudFront?
(Choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

A webserver running on EC2
A webserver running in your own datacenter
A RDS instance
An Amazon S3 bucket
A Glacier storage

Explicación

Pregunta 33 de 94

1

In CloudFront what happens when content is NOT present at an edge location and a request is made to it?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Option 1 An Error 404 not found is returned
CloudFront delivers the content directly from the origin server and stores it in the cache of the edge location
The request is kept on hold till content is delivered to the edge location
The request is routed to the next closest edge location

Explicación

Pregunta 34 de 94

1

Which of the following is true with respect to serving private content through CloudFront?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Signed URLs can be created to access objects from CloudFront edge locations
Direct access to S3 URLs can be removed therefore allowing access only through CloudFront URLs
Mark the S3 bucket private and allow access to CloudFront by means of Roles
Mark the S3 bucket private and and create an Origin Access Identity to access the objects

Explicación

Pregunta 35 de 94

1

You have written a CloudFormation template that creates 1 elastic load balancer fronting 2 EC2 instances. Which section of the template should you edit so that the DNS of the load balancer is returned upon creation of the stack?
(choose 1 correct answers)

Selecciona una de las siguientes respuestas posibles:

Resources
Parameters
Outputs
Mappings

Explicación

Pregunta 36 de 94

1

You are doing a large data analysis which requires high computing power and many instances to be launched simultaneously and then to be retired after the analysis. If the instance is retired during the analysis, the program automatically shifts the analysis to the other instance. Which is the most cost-efficient option for launching the EC2 in this case?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

On-Demand
Reserved
Dedicated
Spot
EC2 is not the right choice here

Explicación

Pregunta 37 de 94

1

What is true about penetration testing in AWS?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can do the penetration on your individual EC2 instance only
A prior permission is required from AWS for penetration testing
You cannot do the penetration testing at all
You can ask AWS support to do the penetration testing
AWS will automatically conduct penetration testing from time to time

Explicación

Pregunta 38 de 94

1

What are the benefits of Multi-AZ RDS deployments?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You get a read-replica
More availability during the maintenance window
Automatic failover in case of one data center failure
More IOPS available for data throughput
You get more privileges to manage your database

Explicación

Pregunta 39 de 94

1

What kind of data should not be stored in S3?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Images and videos
Static files for your websites
Your website database
Notifications from a computer program
Static Files that are accessed once in many years

Explicación

Pregunta 40 de 94

1

What are the characteristics of a reserved instance?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

It can be applied across regions
It saves you significant money over on-demand instance
You can shut down the reserved instance any time you want and the hourly charge wont incur for the shutdown hours
If your AMI changes the Reserved instance is still valid if it’s the same instance type
You pay a fixed amount of money irrespective of the number of hours you used the instance for

Explicación

Pregunta 41 de 94

1

What are the characteristics of CloudFormation?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can use it to replace an instance in the ELB when it fails its health check
Helps you quickly deploy and manage applications in the AWS cloud
It creates a template for your EC2 instance
You don’t need to worry about the infrastructure required to run your applications

Explicación

Pregunta 42 de 94

1

To protect S3 data from accidental deletion and overwriting you should
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Disable S3 delete using an IAM bucket policy
Access S3 data only using signed URLs
Enable S3 reduced redundancy storage
Enable S3 versioning on the bucket
Enable MFA protected access

Explicación

Pregunta 43 de 94

1

Which one is an operational process performed by AWS for data security?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

AES 256 bit encryption of data stored on any shared storage device
Decommissioning of storage device using industry-standard practices
Background virus scans of EBS volumes and EBS snapshots
Replication of data across multiple geographic regions
Secure wiping of EBS volumes when they are un-mounted

Explicación

Pregunta 44 de 94

1

Which metrics could CloudWatch monitor?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Hypervisor visible metrics such as CPU utilization
Operating system visible metrics such as memory utilization
Network Utilization (Read-write)
Web server visible metrics such as number failed transaction requests
Database visible metrics such as number of connections

Explicación

Pregunta 45 de 94

1

How should you launch instance if you need a pre-defined IP?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Launch it in a VPC
Launch it under an ELB
Pre-assign an IP using CloudFormation script
Launch it in a Placement Group

Explicación

Pregunta 46 de 94

1

In which case do you have full authority of the underlying instance?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

EC2
RDS
DynamoDB
EMR (Elastic Map Reduce)

Explicación

Pregunta 47 de 94

1

What is true about EBS?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

The snapshots are stored in S3
The snapshots are just stored as another EBS volume
Snapshots are incremental in nature and only
You can share the snapshot with other AWS accounts
Snapshots are automatically encrypted

Explicación

Pregunta 48 de 94

1

What is the difference between a security group in VPC and a network ACL in VPC?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Security group restricts access to a Subnet while ACL restricts traffic to EC2
Security group restricts access to EC2 while ACL restricts traffic to a subnet
Security group can work outside the VPC also while ACL only works within a VPC
Network ACL performs stateless filtering and Security group provides stateful filtering
Security group can only set Allow rule, while ACL can set Deny rule also

Explicación

Pregunta 49 de 94

1

For an EC2 instance launched in a private subnet in VPC, which of the following are the options for it to be able to connect to the internet (assume security groups have proper ports open)?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Simply attach an Elastic IP
If there is also a public subnet in the same VPC, an ENI can be attached to the instance with the ip address range of the public subnet
If there is a public subnet in the same VPC with a NAT instance attached to internet gateway, then a route can be configured from the instance to the NAT
There is no way for an instance in private subnet to talk to the internet

Explicación

Pregunta 50 de 94

1

What happens to data when an EC2 instance terminates?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

For EBS backed AMI, the EBS volume with operation system on it is preserved
For EBS backed AMI, any volume attached other than the OS volume is preserved
All the snapshots of the EBS volume with operating system is preserved
For S3 backed AMI, all the data in the local (ephemeral) hard drive is deleted
For Instance store-backed EC2 the data is lost when the instance is rebooted

Explicación

Pregunta 51 de 94

1

Which of the following Auto scaling cannot do?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Start up EC2 instances when CPU utilization is above threshold
Release EC2 instances when CPU utilization is below threshold
Increase the instance size when utilization is above threshold
Add more Relational Database Service (RDS) read replicas when utilization is above threshold
Reboots an instance if the health check is failed for that instance

Explicación

Pregunta 52 de 94

1

What is true for S3 buckets?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Bucket namespace is shared and is global among all AWS users.
Bucket names can contain alpha numeric characters
Bucket are associated with a region, and all data in a bucket resides in that region
Buckets can be transferred from one account to another through API
You can have unlimited number of buckets in each AWS account

Explicación

Pregunta 53 de 94

1

Does S3 provides read-after-write consistency?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Yes, not for all regions
Yes, for all regions
No, it does not provide read-after-write consistency
You can provision this by making the right API calls

Explicación

Pregunta 54 de 94

1

Choose the correct statement
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

You can have unlimited number of objects in S3 bucket
An S3 object can be of unlimited size
Data stored in S3 is encrypted
You can use Reduced Redundancy storage for lower cost option
You can serve your static website from S3

Explicación

Pregunta 55 de 94

1

In CloudFront what happens when content is NOT present at an edge location and a request is made to it?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

An Error 404 not found is returned
CloudFront delivers the content directly from the origin server and stores it in the cache of the edge location
The request is kept on hold till content is delivered to the edge location
The request is routed to the next closest edge location

Explicación

Pregunta 56 de 94

1

Which if the services could spread across Multi-AZ?
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

EC2
ELB
RDS
DynamoDB
EBS

Explicación

Pregunta 57 de 94

1

How do you mount a new EBS to an EC2?
(choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Using AWS management console
Using AWS API tools
Using AWS command line interface
By doing an RDP to the instance
By doing an SSH to the instance

Explicación

Pregunta 58 de 94

1

Which of the following will provide the maximum IOPS for your EC2?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Instance based SSD storage
EBS with SSD storage
EBS with provisioned IOPS
Stripe data across Multiple EBS volumes with Raid 5
Stripe data across Multiple EBS volumes with Raid 0

Explicación

Pregunta 59 de 94

1

Choose the right statements about EC2 instance
(choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

The instance based storage is automatically saved in S3
You can use the instance based storage for your root volume
You can attach multiple Elastic IPs to a single EC2
The public DNS of the EC2 remains intact when you shut down the EC2 and start it again
Data on the instance based storage remains intact when you reboot the instance

Explicación

Pregunta 60 de 94

1

What is the best way of taking a fast snapshot without losing the consistency?
(choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Stop the EC2, issue a snapshot command, switch on the EC2
Stop the EC2, issue a snapshot command, wait to complete the snapshot, remount EBS
Just issue the snapshot command
Un-mount EBS, issue snapshot command, remount
Un-mount EBS, take snapshot, wait to complete the snapshot, remount EBS

Explicación

Pregunta 61 de 94

1

What is the maximum size of a single S3 object?

Selecciona una de las siguientes respuestas posibles:

There is no such limit
5 TB
5 GB
100 GB

Explicación

Pregunta 62 de 94

1

Which of the following benefits does adding Multi-AZ deployment in RDS provide?
(choose multiple if more than one is true)

Selecciona una o más de las siguientes respuestas posibles:

Multi-AZ deployed database can tolerate an Availability Zone failure
Decrease latencies if app servers accessing database are in multiple availability zones
Make database access times faster for all app servers
Make database more available during maintenance tasks

Explicación

Pregunta 63 de 94

1

When an ELB is setup, what is the best way to route a website’s traffic to it?

Selecciona una de las siguientes respuestas posibles:

Resolve the ELB name to an ip address and point the website to that ip address
There is no direct way to do so, Route53 has to be used
Generate a CNAME record for the website pointing to the DNS name of the ELB

Explicación

Pregunta 64 de 94

1

You want to use Route53 to direct your www sub-domain to an Elastic Load Balancer fronting your web servers. What kind of record set should you create?

Selecciona una de las siguientes respuestas posibles:

A record
AAAA record
NS record
CNAME record

Explicación

Pregunta 65 de 94

1

You have created a Route 53 latency record set from your domain to a machine in Singapore and a similar record to a machine in Oregon. When a user located in India visits your domain he will be routed to:

Selecciona una de las siguientes respuestas posibles:

Singapore
Oregon
Depends on the load on each machine
Both, because 2 requests are made, 1 to each machine

Explicación

Pregunta 66 de 94

1

If I want an instance to have a public IP address, which IP address should I use?

Selecciona una de las siguientes respuestas posibles:

Elastic IP Address
Class B IP Address
Class A IP Address
Dynamic IP Address

Explicación

Pregunta 67 de 94

1

What does RRS stand for when talking about S3?

Selecciona una de las siguientes respuestas posibles:

Redundancy Removal System
Relational Rights Storage
Regional Rights Standard
Reduced Redundancy Storage

Explicación

Pregunta 68 de 94

1

What does the AWS Storage Gateway provide?

Selecciona una de las siguientes respuestas posibles:

It allows to integrate on-premises IT environments with cloud storage.
A direct encrypted connection to Amazon S3.
It's a backup solution that provides an on-premises cloud storage.
It provides an encrypted SSL endpoint for backups in the cloud.

Explicación

Pregunta 69 de 94

1

How many relational database engines does RDS currently support?

Selecciona una de las siguientes respuestas posibles:

Three: MySQL, Oracle and Microsoft SQL Server.
Just two: MySQL and Oracle.
Five: MySQL, PostgreSQL, MongoDB, Cassandra and SQLite.
Just one: MySQL.

Explicación

Pregunta 70 de 94

1

What are the two permission types used by AWS?

Selecciona una de las siguientes respuestas posibles:

Resource-based and Product-based
Product-based and Service-based
Service-based
User-based and Resource-based

Explicación

Pregunta 71 de 94

1

Which of the following requires a custom cloudwatch metric to monitoring?

Selecciona una de las siguientes respuestas posibles:

Disk usage activity of the ephemeral volumes of an Amazon EC2 instance
CPU Utilisation of an Amazon Elastic Compute Cloud (EC2) instance
Disk usage activity of an Elastic Block Store volume attached to an Amazon EC2 instance
Disk full percentage of an Elastic Block Store volume

Explicación

Pregunta 72 de 94

1

You run a two-tiered application with the following components: an Elastic Load Balancer (ELB), three web/application server on Amazon Elastic Compute Cloud (EC2), and one MySQL RDS database. With growing load, database query take longer and longer and slow down the overall response time for user requests.

What of the following options could speed up performance ? choose 3

Selecciona una o más de las siguientes respuestas posibles:

Create an RDS read-replica and redirect half of the database read request to it
Cache database queries in Amazon Elastic Cloud
Setup RDS in Multi-AZ mode.
Shard the database and distribute loads between shards.
Use AWS CloudFront to cache database queries.

Explicación

Pregunta 73 de 94

1

As an application has increased in popularity, reports of performance issues have grown. the current configuration initiates scaling actions based on avg CPU utilization; however during reports of slowness, CloudWatch graphs have shown that average CPU remains steady at 40 percent. This is well below the alarm threshold of 60 percent. Your developers have discovered that, due to the unique design of the application, performance degradation occurs on an instance when it is processing more than 200 threads.

What is the best way to ensure that your application scales to match the demands?

Selecciona una de las siguientes respuestas posibles:

Launch two to six additional instances outside of the AutoScaling group to handle the additional load.
Populate the custom CloudWatch metric for concurrent session and initiate scaling action based on that metric instead of CPU use.
Empirically determine the expected CPU use for 200 concurrent sessions and adjust the CloudWatch alarm threshold to be that CPU use.
Add a script to each instance to detect the number of concurrent sessions. If the number of sessions remains over 200 for 5 minutes, have the instance increased the desired capacity of the AutoScaling group by one.

Explicación

Pregunta 74 de 94

1

Your company build the mobile application that has already been downloaded several hundreds and thousands of times.

Which authentication solution would enables mobile client to access picture stored on aws s3 bucket and provide you with the height flexibility to rotate credentials?

Selecciona una de las siguientes respuestas posibles:

Identify federation based on AWS security token service(STS) using an aws IAM policy for the respective s3 bucket
IAM user per registered client with an IAM policy granted aws s3 access to the respective bucket

Explicación

Pregunta 75 de 94

1

EBS can always tolerate an Availability Zone failure?

Selecciona una de las siguientes respuestas posibles:

No, all EBS volume is stored in a single Availability Zone
Yes, EBS volume has multiple copies so it should be fine
Depends on how it is setup
Depends on the Region where EBS volume is initiated

Explicación

Pregunta 76 de 94

1

You receive a spot instance at a bit of $0.05/hr. After 30 minutes, the spot price increase to $0.06/hr and your spot instances is terminated by AWS. What was the total EC2 compute cost of running your spot instance?

Selecciona una de las siguientes respuestas posibles:

$0.00
$0.02
$0.03
$0.04
$0.05

Explicación

Pregunta 77 de 94

1

You have an Amazon Elastic Cloud Compute (EC2) security group with several running EC2 instances. You change the security group rules to allow inbound traffic on a new port and protocol, and launch several new instance in the same security group. The new rule apply:-

Selecciona una de las siguientes respuestas posibles:

Immediately to the new instances only
Immediately to the new instances only, but old instance must be stopped and restarted before before the new rule apply.
To all instances, but it may take several minutes for old install to see the changes.
Immediately to all instances in the security group

Explicación

Pregunta 78 de 94

1

You are developing a highly available web application using stateless web servers. Which services are suitable for storing session state data?
(choose 3).

Selecciona una o más de las siguientes respuestas posibles:

Amazon DynamoDB
Amazon ElastiCache
Elastic Load Balancing
AWS storage Gateway
Amazon Relational Database service (RDS)
Amazon CloudWatch

Explicación

Pregunta 79 de 94

1

What combination of the following options will protect Amazon Simple Storage Services (S3) objects from both accidental deletion and accidental overwriting?
(Choose two)

Selecciona una o más de las siguientes respuestas posibles:

Enable S3 versioning on bucket
Access S3 data using only signed URL.
Disable S3 delete using an IAM bucket policy.
Enable S3 Reduced Redundancy storage
Enable multi-factor authentication(MFA) protected access.

Explicación

Pregunta 80 de 94

1

You have been tasked with creating a VPC network topology for your company. The VPC network must support both internet-facing application and internally-facing application accessed only over VPN. Both internet-facing and internally-facing application must be able to leverage at least three AZs for high availability. At a minimum, how many subnets must you create within your VPC to accommodate these requirement?

Selecciona una de las siguientes respuestas posibles:

2
3
4
6

Explicación

Pregunta 81 de 94

1

You have an Amazon Virtual Private Cloud with a public subnet. Three Amazon Elastic Compute Cloud (EC2) instances currently running inside the subnet can successfully communicate with other hosts on the internet. You launch a fourth instance in the same subnet, using the same amazon machine image (AMI) and security group configuration, you used for others, but find that this instance cannot be accessed from the internet. What should you do to enable internet access?

Selecciona una de las siguientes respuestas posibles:

Deploy a NAT instance into the public subnet.
Modify the routing table for the public subnet.
Configure a publically routable IP address in the host OS of the fourth instance.
Assign an elastic ip address to the fourth instance.

Explicación

Pregunta 82 de 94

1

You have a business-critical two-tier web app currently deployed in two availability zones in a single region, using Elastic, Load Balancing and AutoScaling. The app depends on synchronous replication(very low latency connectivity) at the data layer. The application need to remain fully available even if one application availability zone goes off-line, and auto scaling cannot launch new instances in the remaining availability zones, How can the current architecture be enhanced to ensure this?

Selecciona una de las siguientes respuestas posibles:

Deploy in three availability zone, with auto scaling minimum set to handel 33 percent peak load per zone.
Deploy in two region using Weighted Round Robin(WRR), with Auto Scaling minimums set for 50 percent peak load per Region.
Deploy in two region using Weighted Round Robin(WRR), with Auto Scaling minimums set for 100 percent peak load per region.
Deploy in three availability Zones, with auto scaling minimum set to handle 50 percent peak load per zone.

Explicación

Pregunta 83 de 94

1

Which of the following requires a custom CloudWatch metric to monitor?

Selecciona una de las siguientes respuestas posibles:

Memory use
CPU use
Disk read operations
Network in
Estimated charges

Explicación

Pregunta 84 de 94

1

How can software determine the public and private ip addresses of the aws EC2 instance that it is running on?

Selecciona una de las siguientes respuestas posibles:

Query the appropriate AWS cloudwatch metric
Use an ipconfig or ifconfig command
Query the local instance metadata
Query the local instance userdata

Explicación

Pregunta 85 de 94

1

What action is required to establish an Amazon VPC VPN connection between an on-premises data center and Amazon VPC Virtual Private Gateway?

Selecciona una de las siguientes respuestas posibles:

Established a dedicated network connection using AWS Direct Connect
Modify the main route table to allow traffic to a network address translation instance.
Use a dedicated network address translation instance in the public subnet
Assign a static internet-routable ip address to Amazon VPC Customer Gateway

Explicación

Pregunta 86 de 94

1

Which of the following is a durable key-value store?

Selecciona una de las siguientes respuestas posibles:

Amazon Simple Notification Service
Amazon Simple Queue Service
Amazon Simple WorkFlow Service
Amazon Simple Storage Service

Explicación

Pregunta 87 de 94

1

Which route must be added to your routing table in order to allow connections to the internet from your subnet?

Selecciona una de las siguientes respuestas posibles:

Destination:0.0.0.0/0 → Target:your internet gateway
Destination:192.168.1.257/0 → Target:your internet gateway
Destination:0.0.0.0/33 → Target:your virtual private gateway
Destination:0.0.0.0/0 → Target:0.0.0.0/24
Destination:0.0.0.0/32 → Target:your virtual private gateway

Explicación

Pregunta 88 de 94

1

After creating a new aws account, you use the api to request 40 on-demand AWS EC2 instances in a single availability zone. After 20 successful requests, subsequent request failed. what could be a reason for this issue, and how would you resolve it?

Selecciona una de las siguientes respuestas posibles:

You encountered a soft limit of 20 instances per region.submit the limit increase form and retry the failed requests once approved.
AWS allows you to provision no more than 20 instances per availability zone.select a different availability zone and retry the failed request.
You need to use amazon VPC in order to provision more than 20 instances in a single availability zone. simply terminate the resources already provisioned and re-launch them all in a VPC.
You encountered an api throttling situation and should try the failed request using an exponential decay retry algorithm.

Explicación

Pregunta 89 de 94

1

In reviewing the auto scaling events for your application you notice that your application is scaling up and down multiple times in the same hour. What design choice could you make to optimize for cost while preserving elasticity? choose 2

Selecciona una o más de las siguientes respuestas posibles:

Modify the auto scaling group termination policy to terminate the oldest instance first.
Modify the auto scaling to use scheduled scaling actions
Modify the auto scaling group termination policy to terminate the newest instance first.
Modify the amazon cloudwatch alarm period that trigger yours auto scaling scale down policy.
Modify the auto scaling group cool-down timers.

Explicación

Pregunta 90 de 94

1

A customer's nightly EMR job processes a single 2-TB data file stored on S3. The amazon EMR job runs on two on-demand core nodes and three on-demand task nodes. Which of the following may help reduce the EMR job completion time? choose 2

Selecciona una o más de las siguientes respuestas posibles:

Use three spot instances rather than three on-demand instances for the task nodes.
Change the input split size in the mapreduce job configuration.
Use a bootstrap action to present the s3 bucket as a local filesystem.
Launch the core nodes and task nodes within an amazon virtual cloud.
Adjust the number of simultaneous mapper tasks.
Enable termination protection for the job flow

Explicación

Pregunta 91 de 94

1

You have an application running in us-west-2 that requires 6 amazon elastic compute cloud instances running at all times. With 3 availability of zones available in that region(us-west-2a,us-west-2b,us-west-2c), which of the following development provide 100% fault tolerance if any single availability zone in us-west-2 becomes unavailable? choose 2

Selecciona una o más de las siguientes respuestas posibles:

us-west-2a with 2 EC2 instances, us-west-2b with 2 EC2 instance, us-west-2c with 2 EC2 instance
us-west-2a with 3 EC2 instances, us-west-2b with 3 EC2 instance, us-west-2c with no EC2 instance
us-west-2a with 4 EC2 instances, us-west-2b with 2 EC2 instance, us-west-2c with 2 EC2 instance
us-west-2a with 6 EC2 instances, us-west-2b with 6 EC2 instance, us-west-2c with no EC2 instance
us-west-2a with 3 EC2 instances, us-west-2b with 3 EC2 instance, us-west-2c with 3 EC2 instance

Explicación

Pregunta 92 de 94

1

A VPC public subnet is one that:

Selecciona una de las siguientes respuestas posibles:

Has at least 1 route in its associate routing table that uses an internet gateway(IGW)
Include a route in its associated routing table via a NAT.
Has network Access control list (NACL) permitting outbound traffic to 0.0.0.0/0
Has the public subnet options selected in its configuration

Explicación

Pregunta 93 de 94

1

You are deploying a an application on EC2 that must call aws APIs. what method of securely passing credential to the application should you use?

Selecciona una de las siguientes respuestas posibles:

Store API credentials as an object in Amazon S3
Use AWS Identity and Access Management roles for EC2 instance
Pass API credentials to the instance using instance user data
Embed the API credential into your jar file

Explicación

Pregunta 94 de 94

1

A Startup company hired you to help them build a mobile application, that will ultimately store billions of images and videos in Amazon Simple Storage double their current installation base every six months, Due to the nature of their business, they are expecting sudden and large increase in traffic to and from s3, and need to ensure that it can handle the performance need of their applications. What other information must you gather from this customer in order to determine whether s3 is the right option?

Selecciona una de las siguientes respuestas posibles:

You must know how many customers the company has today, because this critical in understanding what their customer base will be in two years.
Uou must find out total number of requests per second at peak usage.
Uou must know the size individual objects being written to S3, in order to properly design the key namespace.
In order to build the key namespace correctly, you must understand the total amount of storage needs for each S3 bucket.

	Creado por stephon hace casi 8 años

Origin From: http://www.cloudsolutionsbook.com/amazon-cloud-solutions/june-20th-2015 Mock up 94 Questions – 80 Minutes Mark the right answers – do not use the right column

AWS – Solution Architect Associate Level Certification - Mock Test

Pregunta 1 de 94

How do you secure company critical data on S3 (choose 4 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 94

How to secure data on rest in EBS (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 94

You have a photo selling website where you have a library of photos on S3. You noticed that there are some websites that are showing the link to your S3 photos. How do you restrict sites like these using your S3 photos link? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 94

In which of the following cases should you use SQS – Simple Queue Service? (choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 94

How do you ensure that the data has been saved properly in S3? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 94

You are running an application on an EC2 and now you want to add another EC2 for your application that requires a high bandwidth connect with the existing EC2. Where should you launch your EC2 in this case? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 94

Where should you use SWF – Simple Workflow Service? (choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 94

What services are required for Auto Scaling? (choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 94

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 94

Amazon Glacier is designed for (chose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 94

An instance is launched into the public subnet of a VPC. Which of the following must be done in order for it to be accessible FROM the Internet? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 94

In VPCs with private and public subnets, database servers should ideally be launched into? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 94

What are the benefits of using ElastiCache for you web application? (choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 94

You configured ELB to perform health checks on EC2 instances. If an instance fails to pass health checks, which statement will be true? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 94

What are the characteristics of DynamoDB? (choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 94

You have a business critical application that requires it to be highly available with 6 instances always running. What should you do to achieve this? (choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 94

What are the characteristics of Elastic Beanstalk? (choose 2 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 94

How do you achieve single sign on with AWS? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 94

What is true about VPC? (choose 3 correct answers)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 94

You are building a system to distribute confidential training videos to employees. Using CloudFront, what method could be used to serve content that is stored in S3, but not publically accessible from S3 directly? (choose 1 correct answer)

Selecciona una de las siguientes respuestas posibles:

How do you secure company critical data on S3
(choose 4 correct answers)

How to secure data on rest in EBS
(choose 1 correct answer)

You have a photo selling website where you have a library of photos on S3. You noticed that there are some websites that are showing the link to your S3 photos. How do you restrict sites like these using your S3 photos link?
(choose 1 correct answer)

In which of the following cases should you use SQS – Simple Queue Service?
(choose 2 correct answers)

How do you ensure that the data has been saved properly in S3?
(choose 1 correct answer)

You are running an application on an EC2 and now you want to add another EC2 for your application that requires a high bandwidth connect with the existing EC2. Where should you launch your EC2 in this case?
(choose 1 correct answer)

Where should you use SWF – Simple Workflow Service?
(choose 2 correct answers)

What services are required for Auto Scaling?
(choose 2 correct answers)

Amazon Glacier is designed for
(chose 2 correct answers)

An instance is launched into the public subnet of a VPC. Which of the following must be done in order for it to be accessible FROM the Internet?
(choose 1 correct answer)

In VPCs with private and public subnets, database servers should ideally be launched into?
(choose 1 correct answer)

What are the benefits of using ElastiCache for you web application?
(choose 2 correct answers)

You configured ELB to perform health checks on EC2 instances. If an instance fails to pass health checks, which statement will be true?
(choose 1 correct answer)

What are the characteristics of DynamoDB?
(choose 3 correct answers)

You have a business critical application that requires it to be highly available with 6 instances always running. What should you do to achieve this?
(choose 3 correct answers)

What are the characteristics of Elastic Beanstalk?
(choose 2 correct answers)

How do you achieve single sign on with AWS?
(choose 1 correct answer)

What is true about VPC?
(choose 3 correct answers)

You are building a system to distribute confidential training videos to employees. Using CloudFront, what method could be used to serve content that is stored in S3, but not publically accessible from S3 directly?
(choose 1 correct answer)

An instance is connected to an ENI (Elastic Network Interface) in one subnet. What happens when you attach an ENI of a different subnet to this instance?
(choose 1 correct answer)

How do you point apex record of your website (example.com) to the public DNS of the Elastic Load Balancer?
(choose 1 correct answer)

Which of the following will occur when an EC2 instance in a VPC (Virtual Private Cloud) with an associated Elastic IP is stopped and started?
(choose 2 correct answers)

You are running an ERP application on EC2 for your company that runs 24x7 and the load is predictable and constant throughout the year. Which is the most cost-efficient option for the EC2 purchase model in this case?
(choose 1 correct answer)

What are the characteristics of EBS?
(choose 3 correct answers)

You notice that you are not able to access your EC2 linux instance using SSH. What should you check first?
(choose 1 correct answer)

What is true about AMI?
(choose 4 correct answers)

What is true about RDS?
(choose 3 correct answers)

What are the characteristics of IAM?
(choose 2 correct answers)

What are the characteristics of VPC subnets?
(choose 2 correct answers)

You have created 4 weighted resource record sets with weights 1, 2, 3 and 4. the 3rd record set is selected by Route53?
(choose 1 correct answer)

Which of the following can be used as an origin server in CloudFront?
(Choose 3 correct answers)

In CloudFront what happens when content is NOT present at an edge location and a request is made to it?
(choose 1 correct answer)

Which of the following is true with respect to serving private content through CloudFront?
(choose 3 correct answers)

You have written a CloudFormation template that creates 1 elastic load balancer fronting 2 EC2 instances. Which section of the template should you edit so that the DNS of the load balancer is returned upon creation of the stack?
(choose 1 correct answers)

What is true about penetration testing in AWS?
(choose 2 correct answers)