AQA A2 Computing 6.2 Networks

Question 1

Local area network

Answer 1

linked computers in close proximity

Question 2

Stand alone computer

Answer 2

a computer that is not networked. It requires its own printer and other peripherals plus its own installation of application software.

Question 3

Topology

Answer 3

In the context of networking, the shape, layout, configuration or structure of the connections that connect devices to the network

Question 4

Wide area network

Answer 4

a set of links that connect geographically remote computers and local area networks

Question 5

Internet

Answer 5

a collection of LANs and computers that are interconnected by WAN

Question 6

Network segment

Answer 6

in Ethernet, a run of Ethernet cable to which a number of workstations are attached

Question 7

Thin-client network

Answer 7

a network where all processing takes place in a central server, the clients are dumb terminals with little or no processing power or local hard disk storage

Question 8

Peer to peer network

Answer 8

a network that has no dedication servers. All computer are equal, so they are called peers

Question 9

Client

Answer 9

a computer that uses the services provided by a server

Question 10

Server

Answer 10

a computer that provides shared resources to network users

Question 11

Server-based network

Answer 11

a network in which resources security and administration and other functions are provided by dedicated servers

Question 12

Web 2.0

Answer 12

software that becomes a service accessed over the internet

Question 13

Web services

Answer 13

self-contained, modular applications that can be described, published, located and invoked over a network, generally the web

Question 14

SaaS

Answer 14

software as a service; a model of software deployment where an application is hosted as a service provided to customers across the internet

Question 15

Web services architecture

Answer 15

where all components in the system are services

Question 16

Ajax

Answer 16

a web technology that allows only the part of a web page that needs updating to be fetched from the web server

Question 17

Wireless network

Answer 17

any type of LAN in which the nodes (computers or computing devices, often portable devices) are not connected by wires but use radio waves to transmit data between them

Question 18

Wi-Fi

Answer 18

trademarked IEEE 802.11 technologies that supprt wireless networking of home and business networks

Question 19

Bluetooth

Answer 19

a wireless protocol for exchanging data over short distances from fixed and mobile devices

Question 20

Router

Answer 20

a device that receives packets or datagrams from one host (computer) or router and uses the destination IP address the packets contain to pass them, correctly formatted, to another host (computer) or router

Question 21

Gateway

Answer 21

a device used to connect networks using different protocols so that information can be passed from one system to another