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Comptia A+ Core 1 > 4.1, 4.2 Virtualization - sections 8, 9 > Flashcards

4.1, 4.2 Virtualization - sections 8, 9 Flashcards

1
Q

Cloud Computing

A

Practice of using a network of remote servers hosted on the internet.

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2
Q

Characteristics/Benefits of Cloud Computing

A

High availability, Scalability, Elasticity/Rapid Elasticity, Metered Utilization, Shared Resources, File Synchronization.

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3
Q

High availability cloud computing

A

Services experiences very little downtime when using the cloud. Availability: Is the percentage of uptime versus downtime.

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4
Q

Scalability cloud computing

A

Ability to increase the number of items in a system at a linear rate or less than a linear rate. Vertical Scaling(Scaling Up): Increasing the power of the existing resources in the working environment. Horizontal Scaling(Scaling Out): Adding additional resources to help handle the extra load being experienced.

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5
Q

Vertical Scaling(Scaling Up) cloud computing

A

Increasing the power of the existing resources in the working environment.

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6
Q

Horizontal Scaling(Scaling Out) cloud computing

A

Adding additional resources to help handle the extra load being experienced.

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7
Q

Elasticity/Rapid Elasticity cloud computing

A

Ability to quickly scale up or down. Elasticity is the system’s ability to handle changes to demand in real time

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8
Q

Metered Utilization cloud computing

A

Being charged for a service on a pay per use basis. The benefit of using the cloud is that most things are done on a metered basis.

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9
Q

Shared Resources cloud computing

A

Ability to minimize the costs by putting VM’s on other servers.

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10
Q

File Synchronization cloud computing

A

Ability to store data which can then spread to other places depending on configuration.

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11
Q

Six types of Cloud Deployment Models

A

Public, Private, Hybrid, Community, Multitenancy, Single Tenancy

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12
Q

Public cloud model

A

Systems and users interact with devices on public networks, such as the internet and other clouds

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13
Q

Private cloud model

A

Systems and users only have access with other devices inside the same private cloud or system Hybrid: Combination of private and public clouds

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14
Q

Community cloud model

A

Collaborative effort where infrastructure is shared between several different organizations with common service needs

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15
Q

Multitenancy cloud model

A

Allows customers to share computing resources in a public or private cloud.

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16
Q

Single Tenancy cloud model

A

Assigns a particular resource to a single organization

17
Q

Cloud Service Solutions

A

On-Premise Solution, Host Solution.

18
Q

On-Premis Cloud Service Solution

A

Needs to procure hardware software, and personnel necessary to run the organization’s cloud. On-premise solution allows the ability to control all the physical and logical access to servers.

19
Q

Hosted Cloud Service Solution

A

Third-party service provider that provides all the hardware and facilities needed to maintain a cloud solution.

20
Q

Three Types of Cloud Service Models

A

SaaS, PaaS, IaaS

21
Q

SaaS(Software as a Service)

A

Examples are Office 365, Google Workspace, TurboTax, QuickBooks Online. Hosted application piece of software that’s added on top of the infrastructure.

22
Q

PaaS(Platform as a Service)

A

Examples are Amazon web Services. Provides the OS

23
Q

IaaS(Infrastructure as a Service)

A

Provides you everything to run servers.

24
Q

Virtual Desktop Infrastructure(VDI)

A

Hosts desktop OS’s within a virtualized environment hosted by a centralized server or server farm.

25
Q

Centralized Model

A

Hosts all the desktop instances on a single server or server farm

26
Q

Hosted Model/Desktop as a Service(DAAS)

A

Maintained by a service provider and provided to the end user as a service.

27
Q

Remote Virtual Desktop Model

A

Copies the desktop image to a local machine prior to being used by the end user.

28
Q

The three main parts of cloud storage services

A

Cloud Storage Applications, File Synchronization, Content Delivery Networks(CDN)

29
Q

Cloud Storage Applications

A

amount of space on a cloud-based server as file storage

30
Q

File Synchronization

A

Ability to synchronize from different devices using a single account

31
Q

Content Delivery Networks(CDN)

A

Network of servers that locates the nearest server to minimize delay or download time.

Comptia A+ Core 1 (12 decks)

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