EC2

Question 1

What happens to the instance memory (RAM) when an EC2 instance is hibernated?

Answer 1

The contents are saved to the EBS root volume.

Question 2

TRUE or FALSE?
When a hibernated EC2 instance is restarted it gets a new instance ID.

Answer 2

FALSE

Question 3

What are the prerequisites for hibernating an EC2 instance? (5)

Answer 3

• Hibernation enabled
• Supported AMI (Linux)
• EBS root volume (not instance store volume)
• Root volume large enough to store RAM content
• Root volume is encrypted

Question 4

What does it mean to take a snapshot of an EC2 instance?

Answer 4

It creates a backup of the root or additionally attached volumes.

Question 5

TRUE or FALSE?
The data on an instance store volume is lost if the instance is rebooted.

Answer 5

FALSE
Only if the instance is stopped, terminated, or there is a disk failure.

Question 6

What’s the difference between a cluster and partition placement group?

Answer 6

A cluster placement group places the instances close together. A partition placement group spreads them out.

Question 7

How many security groups can you assign to an EC2 instance?

Answer 7

Up to 5