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Mobile Devices 1 > Virtualization Cloud > Flashcards

Virtualization Cloud Flashcards

1
Q

What is virtualization?

A

Running multiple virtual machines on a single physical host.

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2
Q

What is the purpose of a hypervisor?

A

To manage and run virtual machines on a physical host.

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3
Q

What are the two types of hypervisors?

A

Type 1 (bare-metal) and Type 2 (hosted).

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4
Q

What is an example of a Type 1 hypervisor?

A

VMware ESXi, Microsoft Hyper-V.

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5
Q

What is an example of a Type 2 hypervisor?

A

Oracle VirtualBox, VMware Workstation.

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6
Q

What are the advantages of virtualization?

A

Cost savings, resource efficiency, and easy scalability.

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7
Q

What is hardware virtualization support in CPUs?

A

Features like Intel VT-x and AMD-V to improve VM performance.

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8
Q

What is virtual machine (VM) snapshot?

A

A saved state of a VM that can be restored later.

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9
Q

What is cloud computing?

A

Delivering computing services over the internet.

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10
Q

What are the three primary cloud service models?

A

IaaS (Infrastructure as a Service), PaaS (Platform as a Service), SaaS (Software as a Service).

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11
Q

What is an example of IaaS?

A

Amazon EC2, Microsoft Azure Virtual Machines.

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12
Q

What is an example of PaaS?

A

Google App Engine, Microsoft Azure App Services.

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13
Q

What is an example of SaaS?

A

Google Workspace, Microsoft 365.

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14
Q

What are the four main cloud deployment models?

A

Public cloud, private cloud, hybrid cloud, and community cloud.

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15
Q

What is the difference between public and private clouds?

A

Public clouds are shared among multiple users; private clouds are dedicated to one organization.

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16
Q

What is a hybrid cloud?

A

A combination of public and private cloud resources.

17
Q

What is on-demand self-service in cloud computing?

A

The ability to provision resources as needed without human intervention.

18
Q

What is resource pooling in cloud computing?

A

Sharing resources among multiple customers dynamically.

19
Q

What is cloud elasticity?

A

The ability to scale resources up or down based on demand.

20
Q

What is cloud scalability?

A

The ability to handle growth by adding more resources.

21
Q

What is a benefit of cloud computing?

A

Reduced IT infrastructure costs and increased accessibility.

22
Q

What is cloud metering?

A

Paying for cloud resources based on usage.

23
Q

What is a cloud-based virtual desktop infrastructure (VDI)?

A

Hosting a desktop environment on a remote server accessible via the cloud.

24
Q

What is containerization?

A

Running applications in isolated environments called containers.

25
Q

What is an example of a containerization platform?

A

Docker, Kubernetes.

26
Q

What is a virtual private network (VPN)?

A

A secure connection to a private network over the internet.

27
Q

What is an example of a cloud storage service?

A

Google Drive, Dropbox, Microsoft OneDrive.

28
Q

What is the purpose of cloud monitoring tools?

A

To track resource usage, performance, and security in a cloud environment.

29
Q

What is a potential risk of cloud computing?

A

Data breaches and lack of control over physical infrastructure.

30
Q

What is the purpose of encryption in cloud computing?

A

To protect data stored and transmitted in the cloud.

31
Q

What is multi-tenancy in cloud computing?

A

Multiple customers sharing the same physical resources in a cloud environment.

32
Q

What is the role of identity and access management (IAM) in the cloud?

A

To control user access to cloud resources.

33
Q

What is a service-level agreement (SLA)?

A

A contract defining the level of service expected from a cloud provider.

34
Q

What is the difference between horizontal and vertical scaling in the cloud?

A

Horizontal scaling adds more machines; vertical scaling adds more resources to an existing machine.

35
Q

What is a cloud orchestration tool?

A

Automates cloud management tasks like provisioning and scaling.

36
Q

What is serverless computing?

A

Running code without managing server infrastructure.

37
Q

What is an example of a serverless platform?

A

AWS Lambda, Google Cloud Functions.

38
Q

What is edge computing?

A

Processing data closer to its source rather than in a centralized data center.

Mobile Devices 1 (37 decks)

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