Virtualization

Question 1

Programming that handles very low-level interaction among hardware and software, such as task scheduling, allotment of time and resources, etc

Answer 1

Supervisor

Question 2

Extra layer of sophisticated programming required by full virtualization that manages the vastly more complex interactions

Answer 2

Hypervisor

Question 3

Paid hypervisor compatible with Windows and Linux

Answer 3

VMware

Question 4

Free hypervisor compatible with Windows, macOS, and Linux

Answer 4

Oracle VirtualBox

Question 5

Microsoft’s free hypervisor for Windows

Answer 5

Hyper-V

Question 6

Linux’s free hypervisor

Answer 6

KVM

Question 7

Software or hardware that converts the commands to and from the host machine into an entirely different platform

Answer 7

Emulator

Question 8

Running a virtual machine on your local system regardless of whether the VM file itself might be stored locally or on a central server accessed via the network

Answer 8

Client-Side Virtualization

Question 9

Extra features in CPUs to support hypervisors; Intel’s VT-X and AMD’s AMD-V

Answer 9

Hardware Virtualization Support

Question 10

Every VM running on that one hypervisor will act as though it is connected to its own switch and nothing else

Answer 10

Internal Network

Question 11

A VM with this accesses the same network as the host system; a lot like the VM has its own cable to connect it to the network. The default when you create a new VM

Answer 11

Bridged Network

Question 12

Switch created by the VM to connect VMs together

Answer 12

Virtual Switch

Question 13

Removing the host OS altogether and installing nothing but the hypervisor to improve performance. No software between it and the hardware. Also known as Type-1

Answer 13

Bare-Metal Hypervisor

Question 14

Applications such as VMware Workstation

Answer 14

Type-2

Question 15

Large-scale global providers use virtualization to minimize idle hardware, protect against data loss and downtime, and respond to spikes in demand. Example: Amazon Web Services (AWS)

Answer 15

Infrastructure as a Service (IaaS)

Question 16

Provider gives programmers all the tools they need to deploy, administer, and maintain a Web application. The provider starts with some form of infrastructure, which could be provided by an IaaS, and on top of that the provider builds a platform: a complete deployment and management system to handle every aspect of a Web application. The infrastructure underneath this is largely invisible to the developer

Answer 16

Platform as a Service (PaaS)

Question 17

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

Answer 17

Software as a Service (SaaS)

Question 18

Software, platforms, and infrastructure delivered through networks that the general public can use

Answer 18

Public Cloud

Question 19

Business-owned, internal cloud that is created if a business wants some of the flexibility of the cloud, needs complete ownership of its data, and can afford both

Answer 19

Private Cloud

Question 20

Like a private cloud paid for and used by more than one organization. Not run by a city or state for citizens’ use, it is a group of organizations with similar goals or needs

Answer 20

Community Cloud

Question 21

A cloud that connects some combination of public, private, and community clouds, allowing communication between them

Answer 21

Hybrid Cloud

Question 22

Technique that means not having to maintain a private cloud powerful enough to meet peak demand - an application can grow into a public cloud instead of grind to a halt

Answer 22

Cloud Bursting

Question 23

The ability to expand the number of servers, even spread them out geographically

Answer 23

Rapid Elasticity

Question 24

With cloud computing, it’s easy to set up your application to add or reduce capacity based on demand

Answer 24

On-demand

Question 25

Consolidating systems’ physical and time resources

Answer 25

Resource Pooling

Question 26

Regardless of how costs are measured (traffic that goes in and out of your web application or the time that every one of your virtualized servers is running), it differs from more traditional hosting with a fixed monthly or yearly fee

Answer 26

Measured Service

Question 27

Some companies charge by the amount of processing resources used, such ad CPU usage. Enables very careful monetizing of resources used. You pay for what parts of the hardware you use, rather than a more general fee for all the hardware of a system

Answer 27

Metered Service