Edexcel GCSE Computer Science Topic 4 Networks overview quiz quiz

A large geographical area such as the distance between different cities

The whole world, connecting every country together

Only wireless devices within range of one router

A small geographical area such as one building or site

A global network of networks

A single large computer

One company's private network

A type of LAN

A human-readable web address that people type into a browser bar

A unique numerical address identifying a device on a network

A type of network cable used to connect devices

The brand name printed on a home router

Stores all the shared files for everyone on the network to access

Encrypts all of the web pages that pass through the network to keep them private

Connects networks together and forwards packets towards a destination IP address

Provides electrical power to the devices connected to the network

$2$ seconds

$5$ seconds

$100$ seconds

$4$ seconds

It generally gives higher, more consistent bandwidth and lower latency

It is much more affected by walls, distance and signal interference than wireless

It needs no cabling at all to connect the devices

It always has a longer range than a wireless connection

HTTP

HTTPS

TELNET

SMTP

POP3

IMAP

SMTP

HTTP

Application layer

Internet layer

Link layer

Transport layer

Application layer

Transport layer (TCP)

Internet layer (IP)

Link layer

Bus

Mesh

Star

Ring

Illegally breaking into a network without permission to steal valuable data

Encrypting all of the data stored on a network so it is secure

Authorised probing of a network to find weaknesses before criminals do

Making regular backup copies of all of a network's important data