1 - The Cloud

Question 1

What is cloud computing?

Answer 1

Using a public cloud to run digital workloads on other people’s servers.

Question 2

What is one key advantage of using a platform like AWS?

Answer 2

Service, cost, and reliability performance that is hard to replicate on your own.

Question 3

What is failover in cloud computing?

Answer 3

Automatically moving workloads to a healthy replacement when a component fails.

Question 4

What does AWS provide in terms of compute power?

Answer 4

Access to as much compute power as needed, delivered on-demand.

Question 5

True or False: AWS can often offer lower prices than on-premises infrastructure.

Answer 5

True.

Question 6

What is the AWS Shared Responsibility Model?

Answer 6

A model that defines the security responsibilities shared between AWS and the customer.

Question 7

Fill in the blank: One defining characteristic of public cloud computing is the _______.

Answer 7

metered payment model.

Question 8

What is the benefit of the self-serve system in cloud computing?

Answer 8

Allows for quick resource allocation without manual intervention.

Question 9

What are capital expenses (CapEx) associated with on-premises infrastructure?

Answer 9

Costs related to purchasing hardware upfront.

Question 10

What is Infrastructure as a Service (IaaS)?

Answer 10

Products that simulate managing physical resources, giving access to compute, storage, and networking assets.

Question 11

What is Platform as a Service (PaaS)?

Answer 11

Products that simplify building applications by hiding infrastructure complexity.

Question 12

Give an example of a Software as a Service (SaaS) product.

Answer 12

Google’s Gmail service.

Question 13

What is serverless computing?

Answer 13

A model that allows developers to run code without managing servers.

Question 14

What is scalability in cloud computing?

Answer 14

The ability of a service to automatically grow in capacity to meet changes in demand.

Question 15

What does elasticity in cloud computing refer to?

Answer 15

The ability to automatically add or remove resources based on changing usage demands.

Question 16

True or False: AWS has a limited capacity for handling large traffic demands.

Answer 16

False.

Question 17

What is the purpose of AWS Elastic Load Balancing?

Answer 17

To automatically distribute incoming application traffic across multiple targets.

Question 18

Fill in the blank: AWS services like Elastic Compute Cloud are designed for _______.

Answer 18

elasticity.

Question 19

What is the main advantage of virtualization in cloud computing?

Answer 19

It allows for efficient use of physical server resources.

Question 20

What is the difference between CapEx and OpEx in cloud computing?

Answer 20

CapEx refers to upfront costs, while OpEx refers to ongoing costs.

Question 21

What do AWS IaaS products include?

Answer 21

• Elastic Cloud Compute (EC2)
• Elastic Block Store (EBS)
• Elastic Load Balancing.

Question 22

What are the two account types you can select when creating an AWS account?

Answer 22

Professional or Personal

Question 23

What is required during the payment method step when creating an AWS account?

Answer 23

Enter a payment method and a new address if different from the previous step

Question 24

What does AWS use to send you a verification code during the account creation process?

Answer 24

Contact method

Question 25

What is the Basic plan in AWS?

Answer 25

A free support plan that can be upgraded later

Question 26

How long can it take to receive the activation email for your AWS account?

Answer 26

Up to 24 hours

Question 27

What are the benefits of using a major cloud provider like AWS?

Answer 27

Higher quality security, availability, and reliability

Question 28

What do AWS customers not need to worry about?

Answer 28

The underlying physical infrastructure managed by AWS

Question 29

What is one major financial benefit of cloud computing?

Answer 29

Pay for only the services you use

Question 30

What does server virtualization enable?

Answer 30

Densely packing software operations on physical hardware

Question 31

What is serverless computing?

Answer 31

A type of virtualization where customers only interact with code and triggers

Question 32

What are cloud-optimized workloads designed to take advantage of?

Answer 32

Scalability and elasticity of cloud platforms

Question 33

What does metered, pay-per-use pricing provide?

Answer 33

Flexible compute options

Question 34

What does IaaS stand for?

Answer 34

Infrastructure as a Service

Question 35

What does PaaS stand for?

Answer 35

Platform as a Service

Question 36

What does SaaS stand for?

Answer 36

Software as a Service

Question 37

How can serverless computing be described?

Answer 37

Cheap and efficient with access to compute power for short durations

Question 38

What does scalability allow applications to do?

Answer 38

Grow to meet demand

Question 39

What is elasticity in cloud computing?

Answer 39

Matching compute power to both rising and falling demand

Question 40

What should be configured to optimize operations within budget in AWS?

Answer 40

AWS Auto Scaling

Question 41

Which of the following does not contribute significantly to AWS's operational value? A. Multiregional presence B. Highly experienced teams of security engineers C. Deep experience in the retail sphere D. Metered, pay-per-use pricing

Answer 41

C. Deep experience in the retail sphere

Question 42

Which are signs of a highly available application? (Choose two)

Answer 42

* A failure in one geographic region triggers automatic failover * Spikes in user demand are met through automatically increasing resources

Question 43

How does the metered payment model make cloud benefits possible? (Choose two)

Answer 43

* Experiments with multiple configuration options are cost-effective * Full-stack applications are possible without capital expenses

Question 44

What are direct benefits of server virtualization? (Choose two)

Answer 44

* Fast resource provisioning and launching * Efficient use of resources

Question 45

What is a hypervisor?

Answer 45

Software used to administer virtualized resources run on physical infrastructure

Question 46

What best describes server virtualization?

Answer 46

Logically partitioning physical compute and storage devices into multiple smaller virtual devices

Question 47

What best describes infrastructure-as-a-service products?

Answer 47

Services that give you direct control over underlying compute and storage resources

Question 48

What best describes platform-as-a-service products?

Answer 48

Services that hide infrastructure complexity behind a simple interface

Question 49

What best describes software-as-a-service products?

Answer 49

Services that provide a service to end users through a public network

Question 50

What best describes scalability?

Answer 50

The ability of an application to automatically add preconfigured compute resources to meet increasing demand

Question 51

What best describes elasticity?

Answer 51

The ability of an application to increase or decrease compute resources to match changing demand

Question 52

Which characteristics help AWS provide scalable services? (Choose two)

Answer 52

* The enormous number of servers it operates * Its highly automated infrastructure administration systems