Knowledge Check

AWS Networking & Content Delivery Quiz

Question 1

With Amazon Virtual Private Cloud (Amazon VPC), what is the smallest size subnet you can have in a VPC? (Select the best answer.)

/26
/24
/30
/28 ✓

Question 2

With Amazon Virtual Private Cloud (Amazon VPC), what is the maximum size IP address range you can have in a VPC? (Select the best answer.)

/16 ✓
/30
/28
/24

Question 3

You need to allow resources in a private subnet to access the internet. Which of the following must be present to enable this access? (Select the best answer.)

Network access control lists
NAT gateway ✓
Security groups
Route tables

Question 4

Which AWS networking service enables a company to create a virtual network within AWS? (Select the best answer.)

AWS Config
Amazon Virtual Private Cloud (Amazon VPC) ✓
Amazon Route 53
AWS Direct Connect

Question 5

True or False? Private subnets have direct access to the internet.

True
False ✓

Question 6

Which component of AWS Global Infrastructure does Amazon CloudFront use to ensure low-latency delivery? (Select the best answer.)

AWS Availability Zones
AWS edge locations ✓
AWS Regions
Amazon Virtual Private Cloud (Amazon VPC)

Question 7

Which of the following is an optional security control that can be applied at the subnet layer of a VPC? (Select the best answer.)

Network ACL ✓
Web application firewall
Firewall
Security group

Question 8

What happens when you use Amazon Virtual Private Cloud (Amazon VPC) to create a new VPC? (Select the best answer.)

An internet gateway is created by default.
Three subnets are created by default in one Availability Zone.
Three subnets are created by default: one for each Availability Zone.
A main route table is created by default. ✓

Question 9

Which of the following can be used to protect Amazon Elastic Compute Cloud (Amazon EC2) instances hosted in AWS? (Select the best answer.)

Security group ✓
AMI
All of the above
Internet Gateway

Question 10

You are a solutions architect who works at a large retail company that is migrating its existing infrastructure to AWS. You recommend that they use a custom VPC. When you create a VPC, you assign it to an IPv4 Classless Inter-Domain Routing (CIDR) block of 10.0.1.0/24 (which has 256 total IP addresses). How many IP addresses are available? (Select the best answer.)

251 ✓
246
250
256

AWS Networking Quiz Key Points

VPC subnet size limits:
- Smallest allowed: /28 (16 IP addresses)
- Largest allowed: /16 (65,536 IP addresses)
Private subnet internet access requires a NAT gateway
Amazon VPC is the service that enables creating virtual networks within AWS
Private subnets do NOT have direct internet access (by definition)
CloudFront uses AWS edge locations for low-latency content delivery
Network ACLs operate at the subnet level, while security groups operate at the instance level
When creating a VPC, a main route table is created by default (but not an internet gateway)
Security groups are used to protect EC2 instances
In a VPC with CIDR block of /24 (256 addresses), only 251 IP addresses are available because AWS reserves 5 addresses in every subnet