#1 AWS Fundamentals

Question 1

A service that helps you automate the process of creating, updating, and managing your cloud infrastructure. Enables you to define your infrastructure and resources in a template file, which can be written in JSON or YAML format.

Think of it as a way to describe your desired cloud environment using a blueprint. This blueprint is called a template, and it contains all the necessary information about the AWS resources you want to create, such as EC2 instances, VPCs, S3 buckets, and more.

Answer 1

CloudFormation

Question 2

What is a CloudFormation Logical Resource?

Answer 2

A resource defined in a CloudFormation Template

Question 3

A service that allows you to store, retrieve, and manage large amounts of data in the AWS cloud, making it easy to access your files from anywhere, anytime.

Answer 3

S3 (Simple Storage Service)

Question 4

What is true of Simple Storage Service (S3)?
A. S3 is an AWS Public Service
B. S3 is a private service
C. S3 is a webscale block storage system
D. S3 is an object storage system
E. Buckets can store a limit of 100TB of data
F. Buckets can store an unlimited amount of data

Answer 4

A. S3 is an AWS Public Service

D. S3 is an object storage system

F. Buckets can store an unlimited amount of data

Question 5

A service offered by AWS that allows you to create a private, isolated virtual network within the AWS cloud.

It’s like having your own virtual data center, where you have complete control over the networking environment, including IP address ranges, subnets, routing, and security settings.

Answer 5

VPC (Virtual Private Cloud)

Question 6

What is true of an AWS Private Service?
A. Located on the Public Internet
B. Located in the AWS Public Zone
C. Located in a VPC
D. Accessible from the VPC it is located in
E. Accessible from any other VPC
F. Accessible from other VPCs or on-premises networks as long as private networking is configured

Answer 6

C. Located in a VPC
D. Accessible from the VPC it is located in
F. Accessible from other VPCs or on-premises networks as long as private networking is configured

Question 7

A virtual server that runs on AWS.

Imagine you have a physical computer that you use to run your applications, store data, and perform various tasks. Now, instead of having that computer in your office or home, you rent it from Amazon and access it through the internet.

Answer 7

EC2 (Elastic Compute Cloud)

Question 8

EC2 is an example of which service model?

Answer 8

IAAS: (infrastructure as a service) is a cloud service model that offers on-demand infrastructure resources, such as compute, storage, networking, and virtualization, to businesses and individuals via the cloud.

Question 9

What are these examples of?

1. Boot volume 2. Data volumes 3. AMI Permissions 4. Block Device Mapping

Answer 9

What is stored in an AMI

Question 10

What Permissions options does an AMI have?

Answer 10

1. Public Access 2. Owner only. 3. Specific AWS Accounts

Question 11

Contains all the necessary information to create a virtual server, also known as an EC2 instance, in the AWS environment. It includes the operating system, software configurations, and application settings that you need to get your virtual server up and running quickly.

Answer 11

AMI (Amazon Machine Images)

Question 12

What is a CloudFormation Physical resource?

Answer 12

A physical resource created by creating a CloudFormation stack

Question 13

What is a simple and correct definition of High Availability?

Answer 13

A system which maximizes uptime

Question 14

What is the definition of a fault tolerant system?

Answer 14

A system which allows failure, and can continue operating without disruption

Question 15

How many DNS root servers exist?

Answer 15

13

Question 16

Who manages the DNS Root Servers?

Answer 16

12 Large Organizations

Question 17

Who manages the DNS Root Zone?

A DNS (Domain Name System) root zone is the highest level in the hierarchical structure of the DNS, which is responsible for translating human-friendly domain names, like www.example.com, into IP addresses that computers can understand.

Answer 17

IANA: Internet Assigned Numbers Authority, is an organization responsible for coordinating and managing the global allocation of unique identifiers that are crucial for the smooth functioning of the internet. These identifiers include IP addresses, domain names, and protocol parameters.

Question 18

Which DNS record Type converts a HOST into an IPv4 Address?

Answer 18

A

Question 19

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

Answer 19

NS

Question 20

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

Answer 20

Registry

Question 21

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

Answer 21

Registrar

Question 22

How many subnets are in a default VPC?

Answer 22

Equal to the number of AZs (Availability Zones) in the region the VPC is located in

Question 23

What is the IP CIDR of a default VPC?

Answer 23

172.31.0.0/16

IP CIDR, or Classless Inter-Domain Routing, is a method used to allocate and manage IP addresses more efficiently in computer networks.