VPC Basics Section Quiz

Question 1

What service does a VPC provide?

Answer 1

Isolated network

Question 2

What are true about default VPCs and custom VPCs

Answer 2

Regions can only have 1 default VPC and many custom VPCs

Custom VPCs allow flexible network configuration, the default VPC has a fixed scheme

Some services can behave oddly if the default VPC doesn’t exist

Default VPCs can be recreated

Question 3

What are the valid sizes of a VPC?

Answer 3

Max /16 & Min /28

Question 4

What is the minimum & maximum size of a VPC subnet?

Answer 4

Min /28 & max /16

Question 5

What is true for a VPC subnet & AZ?

Answer 5

An AZ can have many subnets, a subnet is in one AZ

Question 6

How many IP addresses are reserved in each VPC subnet?

Answer 6

5

Question 7

How can an internet gateway (IGW) be configured to be highly available?

Answer 7

It’s HA by default - attached to a VPC

Question 8

What is true about SG’s and NACLs

Answer 8

SGs can only ALLOW traffic

NACLs can ALLOW & DENY traffic

Question 9

What function does NAT serve?

Answer 9

Allows IPv4 private instances outgoing access to the internet

Question 10

What is true of route tables & VPC subnets?

Answer 10

A subnet can have one route table attached

A route table can be associated w/multiple subnets