AWS Solutions Architect - VPC

Question 1

What is a VPC?

Answer 1

Virtual Private Cloud (VPC) is a virtual datacenter in AWS

Question 2

What are the components of a VPC?

Answer 2

1. Virtual Private Gateways (IGWs)
2. Route Tables
3. Network Access Control Lists (NACLs)
4. Subnets
5. Security Groups

Question 3

True or False: subnets cross availability zones

Answer 3

False.

1 Subnet = 1 AZ

Question 4

Security Groups are stateless, while Network Access Control Lists are stateful.

Answer 4

False: Security Groups are stateful; Network Access Control Lists are stateless

Question 5

what is the command line to SSH into a public EC2 instance?

Answer 5

ssh ec2-user@[ip-address] -i [kvp-pem]

e.g. ssh ec2-user@34.244.98.3 -i MyVPCKP.pem

Question 6

How many IPs are available in a /16 CIDR range?

Answer 6

65,536

Question 7

How many IPs are available in a /24 CIDR range?

Answer 7

256

Question 8

How many IPs are available in a /8 CIDR range?

Answer 8

16,777,216

16.7 Million

Question 9

What is the maximum number of Internet Gateways a VPC can have?

Answer 9

1

Question 10

How many IPs are available in a /22 CIDR range?

Answer 10

1024