AWS Fundementals

Question 1

What permission options does an AMI have?

Answer 1

Public Access, Owner only, Specific AWS Accounts

Question 2

What is not stored in an AMI?

Answer 2

Instance settings and Network settings

Question 3

EC2 is an example of which service model?

Answer 3

IAAS

Question 4

What is true of an AWS Public Service?

Answer 4

Located in the AWS Public Zone and anyone can connect, but permissions are required to access the service.

Question 5

What is true of an AWS Private Service?

Answer 5

Located in a VPC, and accessible from the VPC it is located in?

Question 6

What is true of Simple Storage Service (S3)?

Answer 6

S3 is an AWS public service, it is an object storage system and buckets can store an unlimited amount of data.

Question 7

What is a CloudFormation Template?

Answer 7

a resource defined in a CloudFormation Template

Question 8

What is a CloudFormation Physical Resource?

Answer 8

A physical resource created by creating a CloudFormation stack.

Question 9

What is a simple and correct definition of High Availability?

Answer 9

A system which maximizes uptime.

Question 10

What is the correct definition of a fault tolerant system?

Answer 10

A system which allows failure, and can continue operation without disruption.

Question 11

How many DNS root servers exist?

Answer 11

13

Question 12

Who manages the DNS Root Servers?

Answer 12

12 Large organizations

Question 13

Who manages the DNS Root Zone?

Answer 13

IANA

Question 14

What DNS Record Type converts a HOST into an IPv4 addres?

Answer 14

A

Question 15

Which DNS Record type is how the root zone delegates control of .org to the .org registry?

Answer 15

NS

Question 16

Which type of organization maintains the zones for a TLD (e.g. .ORG)

Answer 16

Registry

Question 17

Which type of organization has relationships with the .org TLD zone manager allowing domain registration?

Answer 17

Registrar

Question 18

How many subnets are in a default VPC?

Answer 18

Equal to the number of AZ’s in the region the VPC is located in

Question 19

What is the IP CIDR of a default VPC?

Answer 19

172.31.0.0/16

Question 20

What is an AWS Public Service?

Answer 20

Something that is accessed using public endpoints such as S3

Question 21

What is a Private AWS Service?

Answer 21

Something which runs within a VPC

Question 22

What are the main 3 different networking zones?

Answer 22

1. Public Internet
2. AWS Private (where VPC’s run from)
3. AWS Public (where AWS public services operate from)

Question 23

On-Premises networks can access VPCs only if configured via?

Answer 23

VPN or Direct Connect

Question 24

Attaching an Internet Gateway to your VPC allows what?

Answer 24

1. Allows private resources to access the public internet
2. Allows access to public AWS services (i.e. S3) but this data doesn’t touch the public internet at any point.

Question 25

What service should you use to create private virtual networks inside of AWS that other private services will run from?

Answer 25

Virtual Private Cloud (VPC)

Question 26

What service should you use to connect your AWS private networks to your on-premises networks when creating a hybrid environment?

Answer 26

Virtual Private Cloud (VPC)

Question 27

What service lets you connect to other cloud platforms when you are creating a multi-cloud deployment?

Answer 27

Virtual Private Cloud (VPC)

Question 28

VPC’s by default are isolated from what?

Answer 28

Other VPCs, the public AWS zone, and the public internet