Access management is most affected by which of these aspects of cloud computing?

Access management is most affected by which of these aspects of cloud computing?

• Internet Service Provider
• Virtualization
• Federated Identity
• Cloud backup 

 

EXPLANATION

Federated Identity allows you to use a central identity store both inside and outside of your organization. Cloud backup and Internet Service Provider have to do with IT service continuity management, not access management. Virtualization affects all IT processes, but not as much as identity federation.

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You only want to use on-premises servers to authenticate. You would like to allow access to cloud email accounts through a user's local credentials. Which solution should you use?

You only want to use on-premises servers to authenticate. You would like to allow access to cloud email accounts through a user's local credentials. Which solution should you use?

• Implement SaaS
• Recreate user accounts in the cloud
• Replicate local user accounts to the cloud
• Identity federation 

EXPLANATION

Identity federation uses a single identity provider to authorize user access to multiple software applications, including cloud email.
Replicating user accounts means you are NOT using the on-premises user identities as you require. SaaS provides end-user software services over the network and has nothing to do with authorization. Recreating user accounts in the cloud won't work because we need to use local user accounts for authentication.

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Which term from the past describes the sharing of mainframe computing resources?

Which term from the past describes the sharing of mainframe computing resources?

• XaaS
• Time-sharing
• Time division multiplexing
• Mainframe sharing 

 

EXPLANATION

Time-sharing allowed groups of people to use expensive mainframe computing resources concurrently by working in isolated computing sessions.
Time division multiplexing is a signal transmission protocol.
Mainframe sharing is not an industry-accepted term.
XaaS refers to any web service delivered over the Internet (Anything as a Service) and thus is incorrect

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Which of the following features of cloud computing matches resources to the current demand?

Which of the following features of cloud computing matches resources to the current demand?

• Elasticity
• Security
• Redundancy
• Availability 

EXPLANATION

Elasticity refers to the ability of a cloud service to scale on demand. Resources such as storage, bandwidth, or memory can be provisioned in a matter of minutes and scaled down when no longer needed.
https://en.wikipedia.org/wiki/Elasticity_(cloud_computing)

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Which of the following is the primary benefit of Platform as a Service (PaaS)?

Which of the following is the primary benefit of Platform as a Service (PaaS)?

• High bandwidth
• Replication
• Low latency
• Rapid application deployment 

EXPLANATION

PaaS provides rapid application deployment. Platform as a service (PaaS) is a category of cloud computing services that provides a platform allowing customers to develop,
run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.

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Cloud solutions that can tolerate failures yet still provide service are referred to as what?

Cloud solutions that can tolerate failures yet still provide service are referred to as what?

• IaaS
• Highly portable
• PaaS
• Highly available 

EXPLANATION

High availability ensures that cloud solutions are always accessible.
This means eliminating single points of failure, such as storing data on a single hard disk or single network connections.

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Which of these cloud distribution models delivers a licensed application to customers over the Internet as an on-demand service?

Which of these cloud distribution models delivers a licensed application to customers over the Internet as an on-demand service?

• Platform as a service
• Infrastructure as a service
• Security as a service
• Software as a service 

EXPLANATION

Software as a service, or "software on demand," is a software licensing and delivery model where a vendor hosts an application and allows you to download it for a set period of time.
This can be handy if your business wants access to a particular application without the upfront costs of purchasing a full license or dealing with maintenance.

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Cloud solutions that can tolerate failures yet still provide service are referred to as what?

Cloud solutions that can tolerate failures yet still provide service are referred to as what?

• Highly available
• Highly portable
• PaaS
• IaaS 

EXPLANATION

High availability ensures that cloud solutions are always accessible. This means eliminating single points of failure, such as storing data on a single hard disk or single network connections.

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When open source software is used in SaaS, it is called ____________ SaaS.

When open source software is used in SaaS, it is called ____________ SaaS.

• Free
• Closed
• Freemium
• Open

EXPLANATION

A lot of SaaS services use open source software and are thus called open SaaS services.
 

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What cloud computing characteristic ensures services and data are always reachable?

What cloud computing characteristic ensures services and data are always reachable?

• Integrity
• Availability
• Scalability
• Confidentiality 

EXPLANATION

Availability ensures that something is reachable at any time

SOURCE

https://quizlet.com/45222112/comptia-cloud-essentials-certification-practice-questions-flash-cards/

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Which of the following is not a requirement of an elastic system?

Which of the following is not a requirement of an elastic system?

• CPU, GPU, RAM, storage availability
• Provision/deprovision resources
• Monitor resource usage
• Leprechauns

 

EXPLANATION

According to a paper from Karlsruhe Institute of Technology, "Elasticity is the degree to which a system is able to adapt to workload changes by provisioning and deprovisioning resources in an autonomic manner, such that at each point in time the available resources match the current demand as closely as possible." https://sdqweb.ipd.kit.edu/publications/pdfs/HeKoRe2013-ICAC-Elasticity.pdf
Resources such as CPU cycles, RAM, and storage are all necessary to provision to a client account. What makes elasticity different from simply being scale-able is that systems can be automated to add or remove these resources pending the outcome of a monitoring routine. Generally speaking, an elastic system doesn't require a Leprechauns to operate.

SOURCE

https://sdqweb.ipd.kit.edu/publications/pdfs/HeKoRe2013-ICAC-Elasticity.pdf
 

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You want to link your company's Microsoft Active Directory user accounts to your cloud provider for federated identity management. What type of configuration must you create within your company?

You want to link your company's Microsoft Active Directory user accounts to your cloud provider for federated identity management. What type of configuration must you create within your company?

• Relying party trust
• Identity trust
• XML provider
• JSON provider 

EXPLANATION

Because your company is the identity provider, you must trust the relying party offering services, so you must configure a relying party trust. The cloud provider would deal with configuring an identity trust, not you. XML and JSON are not specifically related to configuring identity federation.

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Which of the following is the primary benefit of Platform as a Service (PaaS)?

Which of the following is the primary benefit of Platform as a Service (PaaS)?

• Low latency
• High bandwidth
• Replication
• Rapid application deployment 

EXPLANATION

PaaS provides rapid application deployment. Platform as a service (PaaS) is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.

 

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