EBS Flashcards
After you create the full copy snapshot, only the blocks on the device that have changed after your most recent snapshot are saved
Incremental backups
Snapshots are saved to?
S3
Begins as an exact replica of the original volume that was used to create the snapshot
Full Copy
Used to move volumes between AZ, or regions
Snapshots
If you create a new ebs volume from scratch do you get the performance immediately?
Yes
If you create a new ebs volume from a snapshot do you get the performance immediately?
No, transfers gradually
Feature to immediately restore data from snapshots
Fast Snapshot Restore (FSR)
Does EBS charge for unused storage in snapshots? (only using 10gb out of 40gb)
No only charged for data used
uses AWS KMS keys when creating encrypted volumes and snapshots
Encryption
Can accounts be set to encrypt by default?
Yes, using default KMS key
Each volume used 1 unique Data Encryption Key
true
Taking snapshots of encrypted snapshots and future volumes using the same DEK
True
logical networking component in a VPC that represents a virtual network card
Elastic network interfaces (ENI)
Can you associate one Elastic IP address with each private IPv4 address
Yes
Can you create another secondary ENI for an EC2 instance?
Yes
Can you detach secondary ENI from EC2 Instances
Yes
Does assigning Elastic IP cause the Ec2 instance to lose it’s public IPv4 address
Yes
Does using secondary EMI’s with the associated MAC address for licensing allow you you move licensing between instances?
Yes
Multiple ENI’s allow different security rules because different security groups can be attached to them
True
Does the operating system every see the public IPv4 address?
No
IPv4 public IP are dynamic which means that stopping and starting an instance will cause the IP to change
True
Inside the VPC the public DNS resolves to the private IP
True
