Module 3

Question 1

Infrastructure as a service

Answer 1

• The cloud provider manages the physical resources, data centers, cooling power, network and security
• The networking and storage resources are virtualized by the vendor so a user can access and configure them the way they want

Question 2

Platform as a service

Answer 2

The cloud provider manages the platform infrastructure -operating systems, development tools, databases and business analytics

• The user is only responsible for application code and its maintainance
• User pays on usage basis

Question 3

User/persona Iaas

Answer 3

IT admin

Question 4

User/persona Paas

Answer 4

Developer

Question 5

Software as a service

Answer 5

• The cloud provider hosts and manages the applications and data
• The user doesn’t have to install or update software
• Charged via subscription model

Question 6

User/Persona

Answer 6

Anyone

Question 7

Paas Clouds

Answer 7

Provide a level of abstraction to users, eliminating the complexity of deploying applications, configuring infrastructures, and provisioning and configuring supporting technologies like load balancers

Question 8

Paas Runtimes

Answer 8

Executes end-user code according to policies set by the application owner and cloud provider

Question 9

Paas offerings

Answer 9

support a range of application infrastructure (or middleware) capabilities (e.g., servers, database management systems, business analytics services, mobile back-end services, business process management systems, rules engines and complex event-processing systems).

Question 10

Essential Characteristics of Paas

Answer 10

Paas Clouds, Paas runtimes, Paas Offerings

Question 11

Advantages of Paas

Answer 11

Scalability, greater agility and innovation, middleware capabilities

Question 12

Disadvantages of Paas

Answer 12

• Information security threats
• Services impacted when provider’s infrastructure experiences downtime.
• Customers do not have direct control over the changes that may take place by the provider, affecting strategy, service offerings and/or tools.

Question 13

Key characteristics Saas

Answer 13

• SaaS clouds have a multitenant architecture.
• Infrastructure and code are centrally maintained and accessed by all users.
• SaaS makes it easy for users to manage privileges, monitor data use, and ensure everyone sees the same information at the same time.
• Security, compliance, and maintenance are all part of the offering.
• Users can customize applications to fit their business processes with point-and-click ease.
• Users can customize the user interface (UI) to work with branding guidelines; they can modify data fields and enable or disable features within business processes. These customizations are preserved through upgrades.
• Users pay for the use of the services via a subscription model.
• Resources can be scaled easily, depending on the service needs.

Question 14

Public Cloud

Answer 14

n the public cloud model, the service provider owns, manages, provisions, and maintains the physical infrastructure such as data centers, servers, networking equipment, and storage, with users accessing virtualized compute, networking, and storage resources as services.

Question 15

Private Cloud

Answer 15

NIST defines private cloud as cloud infrastructure provisioned for exclusive use by a single organization comprising multiple consumers such as the business units within the organizations.

Question 16

VPC

Answer 16

A VPC is a public cloud offering that lets an organization establish its own private and secure cloud-like computing environment in a logically isolated part of a shared public cloud.

Question 17

Hybrid Cloud

Answer 17

Hybrid cloud is a computing environment that connects an organization’s on-premises private cloud and third-party public cloud into a single, flexible infrastructure for running the organization’s applications and workloads.

Question 18

Types of Hybric clouds

Answer 18

Monocloud, multicloud, composite multicloud

Question 19

You have been working with a client to secure a business deal involving one of their infrastructure platforms; subsequently, they have decided to implement IaaS for the wide range of services it provides. Who will be the typical user for IaaS?

Answer 19

System administrator

Question 20

In which of the following service models does the cloud service provider take responsibility for the installation, configuration, and operation of the application infrastructure?

Answer 20

Paas

Question 21

Which of the following represents a use case for SaaS?

Answer 21

Leveraging it to avoid the need for ongoing upgrades, maintenance, and patching.

Question 22

It may be owned, managed, and operated by the organization, a third party, or some combination of those functions and may exist on or off premises identifies characteristics of which cloud deployment model?

Answer 22

Private Cloud

Question 23

Interoperability, scalability, and portability are key tenets of which one of the following cloud deployment models?

Answer 23

Hybrid

Question 24

Which of the following is a benefit of the hybrid cloud deployment model?

Answer 24

It offers resource optimization.

Question 25

Which of the following describes a use case for the public cloud?

Answer 25

Using it for computing resources to build secondary infrastructures for disaster recovery, data protection, and business continuity.

Question 26

Which of the following describes a use case for the private cloud?

Answer 26

Providing an opportunity to modernize and unify an organization’s in-house and legacy applications.

Question 27

A virtualized, multi-tenant architecture enabling tenants or users to share computing resources residing outside their firewalls best describes a characteristic for which cloud type?

Answer 27

Public cloud

Question 28

Which of the following is considered a use case for a public cloud?

Answer 28

Increasingly opting to access cloud-based applications and platforms so an organization’s teams can focus on building and testing applications and platforms, thus reducing time-to-market for their products and services.