Karteikarten
EC2
Karten in diesem Stapel (39)
- 1What does EC2 stand for?Elastic Cloud Computing
- 2What is EC2?Virtual Machines in the cloud
- 3What are the different EC2 pricing options?1. On Demand
2. Reserved
3. Spot
4. Dedicated Host - 4What are on demand instances?Fix rate, by the hour (or second) with no commitment
- 5What types of load are On Demand instances good for?Short term, spiky or unpredictable workloads
- 6What are reserved instances?Reserved capacity
Offers significant discount on hourly charge for instances
Available in 1-3 year terms - 7What are Convertible Reserved Instances?Allows you to modify the instances as long as their capacity is greater than or equal to current capacity
- 8What are Spot instances?Bid a price for instance capacity
If AWS terminates instances you are not charged
If you terminate you will be charged for complete hour - 9What are Dedicated Host instances?Physical server for your dedicated use
Useful for regulatory requirements - 10Instance type letters?DR MCGIFT PX H
- 11What does EBS stand for?Elastic Block Storage
- 12What are the different types of EBS?1. General Purpose SSD
2. Provisioned IOPS SSD
3. Throughput Optimised HDD
4. Cold HDD
5. Magnetic - 13When would you typically use a General Purpose SSD?Workloads <= 10,000 IOPS
- 14When would you typically use a Provisioned IOPS SSD?Workloads > 10,000 IOPS
- 15What are the different types of load balancers?1. Application Load Balancer
2. Network Load Balancer
3. Classic (Elastic) Load Balancer - 16What type of load balancer is best suited for HTTP/HTTPS traffic?Application Load Balancer
- 17What type of load balancer is best suited for extreme performance?Network Load Balancer
- 18What is the most costly load balancer?Network Load Balancer
- 19What response is returned by Classic Load Balancer when there is an error with your application?504
- 20What header is used to forward the IP of the original requester to the application under a load balancer?X-Forwarded-For
- 21What is route 53?Amazons DNS offering
- 22Route53 allows mapping of domain names to which AWS services?- EC2
- Load Balancers
- S3 Buckets - 23What does RDS stand for?Relational Database Service
- 24What does OLTP stand for?Online Transaction Processing
- 25What are the different DB engines currently supported by RDS?- SQL Server
- Oracle
- MySQL Server
- PostgreSQL
- Aurora
- MariaDB - 26What are the different types of backups?- Automated Backups
- Database Snapshots (Manual) - 27Automated Backups enable you to...Recover DB to any point in time within a retention period
- 28Where are automated DB backups stored?S3
Free S3 storage up to the size of your DB - 29Automated backups are not enabled by default True/FalseFalse
They are enabled by default on RDS - 30Database Snapshots (Manual Backups) are kept even after deleting original DB? True/FalseTrue
- 31Restoring an RDS DB from a backup will...Create a new RDS instance with a new DNS endpoint
- 32What is a read replica?A DB copy that can only be read from
- 33Read replicas should should be used for _______ , but not __Scaling
DR (Disaster Recovery) - 34What is the maximum number of Read Replicas you can have for an RDS DB?5
- 35Read replicas can be promoted to become their own databases True/FalseTrue
- 36You can't have a read replica in another region True/FalseFalse
You can have a read replica in another region - 37Elasticache is a good choice if your database is...Read heavy
Changes infrequently - 38You should use Memcached if...- Object caching is goal
- Want to keep things simple
- Want to scale horizontally (scale out) - 39You should use Redis if...- You have advanced data types
- You are doing data sorting and ranking
- Data persistence is important
- Multi-AZ is importan
Informationen
- Beschreibung
- Associate Developer AWS Karteikarten am EC2, erstellt von Sam Wells am 12/05/2019.
- Erstellt von
- Sam Wells · Mai 2019
- Aktualisiert
- 12 Mai 2019
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