Wide Area Netoworks

Question 1

what does the Fibre optic backbone do?

Answer 1

it connects various part of betwork and provides path for information exchange between LANs. The backbone ties large network together within the same or different building, campus and wide area.

Question 2

what does WAN entail>

Answer 2

its not confined to 1 area and owned by multiple organisation which connects users and applications from different LANs. emplys third parties and public network telephones system to provide connections.Devices spread around world.

Question 3

what does gateways do?

Answer 3

they provide connectivity between 2 or more network segments as they are protocol converters. they operate at any network layer between 2 different protocols

Question 4

what does the router do as a gateway?

Answer 4

routers are a gateway for TCP and Ip network and it sends/receives data on internet

Question 5

what do satellite radio waves provide?

Answer 5

provide voice/vidoe calling,internet,TV radio channels

Question 6

what are satellite radio waves comprised of?

Answer 6

tansponder, antenna, communication payload, switching system, command and control system

Question 7

what is a geostaionary orbit used for

Answer 7

stellite communications

Question 8

what are features of satellite radio waves?

Answer 8

available globally
reliable but expensive to set up and has higher data costs.
more secure and transfers high amounts of data
provide weather information and helpful during disaters

Question 9

what is microwave

Answer 9

communications system that uses beams of radio waves in microwave frequency range to transmit audio,video,data and data tween 2 locations

Question 10

explain cellular technologies?

Answer 10

many signal areas overlap each other create coverage for larger and devices are connected can move accros cells without losing connection

Question 11

what is a Cell ?

Answer 11

base station sends or receive mobile transmissions

Question 12

explain 2g.

Answer 12

second generation mobile data technolgy that handles phone calls basic text messages and transfer small amounts of data

Question 13

explain 3G

Answer 13

third generation improves data transfer by supporting large data formats and slower speeds

Question 14

explain LTE

Answer 14

Long Term Evolution improvement over 3G speeds but not substantial to qualify as new generation

Question 15

explain 4G

Answer 15

fast connection speeds and mobile hotspots they can view digital media on devices and no long loading times or buffering

Question 16

explain 5G

Answer 16

smarter, more efficient and fast includes low lateny and download ,upload,watchfilce/videos faster without slow connectivity or buffering time.

Question 17

what is wifi calling?

Answer 17

make call to phone number internet at no additional cost to data

Question 18

what is fibre?

Answer 18

fibre uses fibre optic cable to transmit data

Question 19

what is ADSL

Answer 19

uses telephone lines to transmit data along copper cables from nearest telephone exchange to home or office.replaced by fivre connections.

Question 20

define internet speed?

Answer 20

rate infromation or data trables frmo web to device

Question 21

what affects ADSL bandwidth?

Answer 21

copper cables are affected by bottlenecks

Question 22

how is fibre internet speed?

Answer 22

not affected by exchange distance and handles higher volumes of traffic without affecting download speed

Question 23

what is a protocol

Answer 23

a set of rules enabling connection, communication and data transfer between 2 places on network.

Question 24

what are the email protocols?

Answer 24

simple mail transfer protocol email deliverd from email client to email server or between server uses port 25 outgoing emails
post office protocol allows email client to download email from server
internet message access protocol client downloads email from server

Question 25

what are the web protocols

Answer 25

HTTP standard for transferrin webpages and conetent across the internet
HTTPS the secure version of HTTP used on pages ask for person or sensitive informatioin

Question 26

what are the download protocols?

Answer 26

file transfer protocol tranfers files across internet from 1 computer to specified location on another
WebDav is HTTP extension for communication between client browser and web servers