Chapter 16: Virtualization and Cloud Computing Flashcards

1
Q

Virtual Machine

A

Special software running on a computer to create a complete environment that imitates all of the hardware you’d see on a real computer.

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2
Q

Hypervisor

A

A layer of programming that creates, supports, and manages a virtual machine.

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3
Q

Benefits of VMs

A
  • Power Saving
  • Hardware Consolidation
  • System Recovery
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4
Q

Bare-Metal Hypervisor

A

A hypervisor that does not run atop an OS

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5
Q

3 Bare-Metal Hypervisors

A

1) vSphere
2) Hyper-V
3) XenServer

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6
Q

Storage Area Network (SAN)

A

A server that can take a pool of hard disks and present them over the network as any number of logical disks.

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7
Q

Fibre Channel (FC)

A

A self-contained, high-speed storage environment with its own storage arrays, cables, protocols, and switches.

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8
Q

Network Attached Storage (NAS)

A

A dedicated file server that has its own file system and typically uses hardware and software designed for serving and storing files.

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9
Q

Virtual Switch

A

Special software that enables VMs to communicate with each other without going outside of the host system.

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10
Q

Virtual Router

A

A router that is implemented in software within a virtual machine.

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11
Q

Virtual Firewall

A

A firewall that is implemented in software within a virtual machine in cases where it would be difficult, costly, or impossible to install a traditional physical firewall.

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12
Q

Control Plane

A

Makes decisions about how to move traffic

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13
Q

Data Plane

A

Responsible for executing decisions made by the control plane

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14
Q

Software Defined Networking

A

Cuts the control plane of individual devices out and lets an all-knowing program called a network controller dictate how both physical and virtual network components move traffic through the network.

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15
Q

Infrastructure as a Service (IaaS)

A

Providing servers, switches, and routers to customers for a set rate. Basically virtualization capabilities without having to purchase hardware.

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16
Q

Platform as a Service (PaaS)

A

A complete deployment and management system that gives programmers all the tools they need to administer and maintain a Web application

17
Q

Software as a Service (SaaS)

A

Provides access to necessary applications wherever you have an Internet connection, without having to carry data with you or regularly update software. Google Maps etc.

18
Q

Public Cloud

A

Software, platforms, and infrastructure that the general public can use.