Introduction to the cloud

Question 1

What is the cloud?

Answer 1

The on-demand delivery of IT resources via the Internet with pay-as-you-go pricing.

Question 2

What percentage of Enterprise IT will move to the cloud by 2025?

Answer 2

80%

Question 3

What percentage of workloads was processed in the cloud in 2021?

Answer 3

94%

Question 4

What are the three types of cloud computing according to the responsibility of management?

Answer 4

• IaaS (Infrastructure as a Service)
• PaaS (Platform as a Service)
• SaaS (Software as a Service)

Question 5

What does IaaS stand for?

Answer 5

Infrastructure as a Service

Question 6

What does PaaS provide?

Answer 6

An on-demand environment for developing, testing, delivering, and managing software applications.

Question 7

What is SaaS?

Answer 7

A method for delivering software applications on demand with a subscription payment model.

Question 8

Fill in the blank: The AWS cloud gives researchers faster access to _______.

Answer 8

[cleaner data]

Question 9

What is the first step in deploying a virtual machine in AWS?

Answer 9

Log in to AWS Academy and select ‘AWS Academy Learner Lab.’

Question 10

What should you do after clicking ‘Start Lab’?

Answer 10

Wait until the red circle turns green.

Question 11

What is EC2?

Answer 11

A service that allows you to create virtual instances in the cloud.

Question 12

What is the recommended base algorithm for the key pair?

Answer 12

RSA

Question 13

What file format is generated for the key pair?

Answer 13

.pem

Question 14

Which protocol must be marked to allow SSH access?

Answer 14

[SSH protocol]

Question 15

What does HTTP stand for?

Answer 15

Hypertext Transfer Protocol

Question 16

What does HTTPS stand for?

Answer 16

Hypertext Transfer Protocol Secure

Question 17

What is the purpose of the .ppk key?

Answer 17

It is used for authenticating access to the virtual machine.

Question 18

What command is used to connect to the server via SSH?

Answer 18

[ssh command]

Question 19

What is the default user to connect to the virtual machine?

Answer 19

ubuntu

Question 20

What is an inbound rule?

Answer 20

A rule that controls incoming traffic to the virtual machine.

Question 21

What is an outbound rule?

Answer 21

A rule that controls traffic starting from the virtual machine.

Question 22

True or False: Outbound rules control traffic initiated by users.

Answer 22

False

Question 23

Fill in the blank: The cloud is composed of _______ servers.

Answer 23

[Linux]

Question 24

What is the purpose of creating inbound rules?

Answer 24

To allow specific types of incoming traffic.

Question 25

What is the significance of the public IP address in connecting to a virtual machine?

Answer 25

It is used to establish the connection to the virtual machine.

Question 26

What should you avoid using for remote connections?

Answer 26

Telnet and HTTP

Question 27

What are the protocols mentioned for connectivity?

Answer 27

* ICMP * HTTP (80) * HTTPS (443) * SSH (22)

Question 28

What is the purpose of validating connectivity?

Answer 28

To ensure the machine can reach other machines on the internet.

Question 29

What is the procedure to change permissions on a .pem file?

Answer 29

[Change permissions command]