Flashcards
Section 3 les 3- Creating EC2 part 3 - EBS volums
Cards in this deck (23)
- 1What is EBS?Amazon Elastic Block Store (Amazon EBS) provides block level storage volumes for use with EC2 instances. EBS volumes behave like raw, unformatted block devices.
- 2Can you modify Amazon EBS?You can dynamically change the configuration of a volume (change size, volume type, IOPS capacity)
- 3For what are EBS particularly suitable?EBS volumes are particularly well-suited for use as the primary storage for file systems, databases, or for any applications that require fine granular updates and access to raw, unformatted, block-level storage.
- 4What is feature of EBS in terms of IOPS?Amazon EBS is well suited to both database-style applications that rely on random reads and writes, and to throughput-intensive applications that perform long, continuous reads and writes.
- 5What happens of EBS if you shutdown EC2 instance?If you did not choose termination in creation of EC2, EBS remain active for use
- 6Is it possible to attach multiple EBS to an instance?Yes, but they must be on the same availability zone
- 7Is it possible to attach one EBS to multiple instances?It is possible depeding on the volume and instance types - using Multi Attach
- 8What are EBS volume types?General purpose SSD
Provisioned IOPS SSD
Throughput optimized HDD
Cold HDD
Previous generation magnetic - 9Which volume type is st1?Throughput optimized HDD
- 10Which volume type is io1 and io2?Provisioned IOPS SSD
- 11Which volume type is sc1?Cold HDD
- 12Which volume types are gp2 and gp3?General purpose SSD
- 13Which EBS volume type is beneficial for mission-critical, low latency or high throughput workloads which are sensitve to storage and consistency?Provisioned IOPS SSD
- 14Which EBS volume type is beneficial for use cases such as boot volumes, medium-size single instance databases, and development and test environments.?General purpose SSD
- 15Which EBS volume type is beneficial for large, sequential, cold-data workloads or you require infrequent access to your data and are looking to save costs?Cold HDD
- 16Which EBS volume type is beneficial for large, sequential workloads such as Amazon EMR, ETL, data warehouses, and log processing which require frequent access at low cost?Throughput optimized HDD
- 17What keys are used for EBS encryption?KMS keys
- 18What algorithm is used for encryption?AES-256 algorithm
- 19Where does encryption happen?On the servers that hose an EC2 instance, securing both data at rest and in transit
- 20So, in whch one of thses does encryption actually happen? EC2 or EBSEC2
- 21What data are encypted?Data inside voume
Data moving between volume and instance
All snapshots created from volume
All volumes created from snapshot - 22How public and private key pairs are stored?EC2 stores public, user private
- 23In which folder public keys are placed when instance boots first time?~/.ssh/authorized_keys
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- Easy AWS Solution SAA-C03 (Whizlabs) Flashcards on Section 3 les 3- Creating EC2 part 3 - EBS volums, created by Archimed Nemes on 23/11/2022.
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