Section 10 OBJ 4.1: Cloud Computing

Question 1

Cloud Computing

Answer 1

Practice of using a network of remote servers hosted on the internet in order to manage, store, or process data

Question 2

High Availability

Answer 2

Services experience very little downtime when using the cloud

Question 3

Scalability

Answer 3

Ability to increase or decrease resources in a system in a linear or less than linear rate, in order to meet resource demands

Question 4

Vertical Scaling (scaling up)

Answer 4

adding more resources to an existing server or node

Question 5

Horizontal Scaling (scaling out)

Answer 5

adding additional machines to help handle extra load

Question 6

Rapid Elasticity

Answer 6

ability to scale up or down quickly

Question 7

Metered Utilization

Answer 7

being charged for a service on a pay per use basis

Question 8

shared resources

Answer 8

ability to minimize costs by sharing cloud resources with other users

Question 9

File Synchronization

Answer 9

ability to store data which can spread to other places depending on configuration

Question 10

Public Cloud

Answer 10

service provider makes resources to end users over the internet

Question 11

Private Cloud

Answer 11

a company creates their own in house cloud that is not shared with others

Question 12

Hybrid Cloud

Answer 12

a combination of public and private clouds

Question 13

Community Cloud

Answer 13

Collaborative effort where resources and costs are being shared among several organizations who have a common service need

Question 14

Multitenancy

Answer 14

allows users to share computing resources in a public or private cloud

Question 15

Single tenancy

Answer 15

assigns a particular resource to a single organization. there is no sharing.

Question 16

On-Premise Solution

Answer 16

need to procure all the hardware, software, personnel, and space to run the organization’s cloud

Question 17

Hosted Solution

Answer 17

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

Question 18

IaaS

Answer 18

provides everything you with everything you need to run a server.
This includes power space, cooling, network, virtualization layer, and sometimes the OS

Question 19

PaaS

Answer 19

Everything in a IaaS, but also includes the middleware and runtime environments, such as databases, web servers, programming languages, OS, etc

Question 20

SaaS

Answer 20

Hosted piece of software on top of everything provided by a PaaS

Question 21

Virtualized Desktop Infrastructure (VDI)

Answer 21

Hosts desktop OSes within a virtualized environment hosted by a centralized server or server farm.
Can be connected to by the user via something like RDP

Question 22

Centralized Model

Answer 22

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

Question 23

Hosted Model/ Desktop as a Service

Answer 23

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

Question 24

Remote Virtual Desktop Model

Answer 24

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

Question 25

Cloud Storage Applications

Answer 25

Amount of space on a cloud-based server as file storage ex: Google Drive

Question 26

File Synchronization

Answer 26

ability to synchronize from different devices using a single account

Question 27

Content Delivery Network (CDN)

Answer 27

different servers located around the world so it finds the closest server to the user, in order to minimize latency and download times

Question 28

Software Defined Networking (SDN)

Answer 28

Enables the network to be intelligently and centrally controlled, or programmed, using software applications Can be changed automatically by automation and orchestration

Question 29

Application Layer

Answer 29

focuses on the communication resource requests or information about the network as a whole

Question 30

Control Layer

Answer 30

uses the information from the applications and decides how to route the data packets on the network

Question 31

Infrastructure Layer

Answer 31

Contains the actual network devices that receive the instructions from the control layer about where to move that data