02-Fundamentals

Question 1

What are AWS Public Services and AWS Private Services referring to?

Answer 1

Networking.

Question 2

What is an AWS Public Service?

Answer 2

Something that is accessed using public endpoints, such as S3.

Question 3

What is an AWS Private Service?

Answer 3

Operates within a VPC, meaning only resources within the VPC or connected to the VPC.

Question 4

True/False: Public Endpoints are only accessible if you’ve been granted permissions to the endpoint

Answer 4

TRUE

Question 5

By default, can VPCs communicate with each other?

Answer 5

No. They can only communicate with each other if they have been explicitly allowed.

Question 6

What are the network zones involved with AWS?

Answer 6

The public internet - where general internet services operate. The AWS Public Zone - Where AWS public services reside. The AWS Private Zone - Where VPCs and other private resources run

Question 7

What 2 key functionalities does Internet Gateway provide?

Answer 7

Allows private resources to access the public internet if they have a public IP. Allows access to public services such as S3 without data touching the public internet.

Question 8

Can EC2 instances be made publicly accessible?

Answer 8

Yes, they can be given a Public IP address making them accessible from the internet.