section 7

• What is the main topic of this section?

  The different storage options for EC2 instances
• What does EBS stand for?

  Elastic Block Store
• What is an EBS Volume?

  It is a network drive that can be attached to EC2 instances while they run
• What is the purpose of EBS Volumes?

  To persist data even after the instance is terminated
• How can you access data from an EBS Volume after an instance is terminated?

  By recreating an instance and mounting the same EBS Volume
• Can an EBS Volume be mounted to more than one instance at a time?

  No, it can only be mounted to one instance at a time
• What happens when you create an EBS Volume?

  It is bound to a specific availability zone
• How can you think of EBS Volumes in terms of physical storage?

  As network USB sticks that can be attached to instances
• What is the free EBS storage provided per month?

  30 GBs of General Purpose or SSD or Magnetic storage
• What types of EBS Volumes will be used in this course?

  GP2 to GP3 Volumes
• How do EBS Volumes communicate with EC2 instances?

  Through the network
• What is a potential drawback of using EBS Volumes due to network communication?

  There may be a bit of latency
• What can you do with EBS Volumes in terms of instance management?

  Detach them from one EC2 instance and attach them to another quickly
• What happens to an EBS Volume created in us-east-1a?


  It cannot be attached to us-east-1b
• What is the significance of taking a snapshot of an EBS Volume?

  It allows moving a volume across different availability zones
• What must you do when creating an EBS Volume regarding capacity?

  You need to provision capacity in advance
• What is IOPS in the context of EBS Volumes?

  I/O operations per second
• How are you billed for EBS Volumes?

  You are billed for the provisioned capacity
• Can you increase the capacity of an EBS Volume over time?

  Yes, you can increase the capacity for better performance or more size
• What is the relationship between EC2 instances and EBS Volumes regarding availability zones?


  • EC2 instances are bound to an availability zone (AZ).
  • EBS Volumes are also linked to a specific AZ.
  • EBS Volumes created in one AZ cannot be attached to instances in another AZ.
• What does it mean to leave EBS Volumes unattached?

  They can be attached to an EC2 instance on demand
• What is the "Delete on Termination" attribute for EBS Volumes?

  It controls the EBS behavior when an EC2 instance is terminated
• What is the default setting for the "Delete on Termination" attribute for the root volume?


  It is ticked (enabled)
• What is the default setting for the "Delete on Termination" attribute for new EBS Volumes?

  It is not ticked (disabled)
• How can you preserve the root volume when an instance is terminated?

  By disabling the "Delete on Termination" for the root volume
• What are the key points regarding the "Delete on Termination" attribute for EBS Volumes?

  • Default for root volume: enabled (ticked).
  • Default for new EBS Volumes: disabled (unticked).
  • Controls whether the volume is deleted when the instance is terminated.
• What is an EBS Snapshot?

  An EBS Snapshot is a backup at any point in time of your EBS volume.
• Is it necessary to detach your EBS volume from your EC2 instance to take a snapshot?

  No, it is not necessary, but it is recommended.
• Can you copy EBS Snapshots across different Availability Zones?

  Yes, you can copy EBS Snapshots across different Availability Zones or even across different Regions.
• What happens when you take a snapshot of an EBS volume in US-EAST-1A?

  You can restore it in another Availability Zone, such as US-EAST-1B.
• What is the EBS Snapshot Archive feature?

  • Ability to move the snapshot to an "archive tier"
  • Up to 75% cheaper than standard storage
  • Restoration takes 24 to 72 hours
• What happens to deleted EBS Snapshots?

  Deleted EBS Snapshots land in a Recycle Bin instead of being permanently deleted.
• What is the retention period for EBS Snapshots in the Recycle Bin?

  • Retention can be set from one day to one year.
• What is the Fast Snapshot Restore feature?


  • Forces full initialization of your snapshot
  • Ensures no latency on the first use
  • Particularly helpful for large snapshots
  • Costs a lot of money
• Why is the Fast Snapshot Restore feature particularly useful for large snapshots?

  It allows for quick initialization of an EBS volume or instance without latency.
• What should you be cautious about when using the Fast Snapshot Restore feature?

  It costs a lot of money, so be careful when using it.
• What does AMI stand for in the context of EC2 instances?

  Amazon Machine Image
• What is the purpose of an AMI?

  It represents a customization of an EC2 instance.
• What can you include in an AMI?

  Software configuration, operating system setup, and monitoring tools.
• What advantage does creating your own AMI provide?

  Faster boot time and configuration time.