AWS VPC CIDR Blocks

Question 1

What does the term “VPC CIDR block” refer to in AWS?

A) A block of public IP addresses assigned to a VPC
B) The unique identifier of an AWS VPC
C) The range of private IP addresses that a VPC can use
D) The IPv6 address range of a VPC

Answer 1

Answer: C) The range of private IP addresses that a VPC can use

Explanation: The VPC CIDR block specifies the range of private IP addresses that a VPC can use for its instances.

Question 2

Can you change the VPC CIDR block after creating a VPC?

A) Yes, but it requires creating a new VPC and migrating resources.
B) No, the VPC CIDR block is fixed and cannot be modified.
C) Yes, it can be changed easily from the VPC settings.
D) Only AWS Support can modify the VPC CIDR block.

Answer 2

Answer: A) Yes, but it requires creating a new VPC and migrating resources.

Explanation: You cannot change the VPC CIDR block of an existing VPC. To change it, you would need to create a new VPC and migrate resources.