a) (i) Devices for setting up a LAN
- Gateway: A gateway can be hardware or software and it acts as a bridge between two
networks. A gateway is an entrance point of a network, e.g. a router or computer server
which acts as a gateway device in a network. A gateway computer is usually attached
with the router and switch.
- Hub: This is where a number of computers or peripheral devices are linked to a central
unit. It is a networking device
- LAN Card: This is a network Interface card which is used to join the computers in a
network.
- Switch: Ali tire computers in a wired network are directly connected with the switch
through Ethernet cable. They transmit the data towards its destination based on the IP
address.
- Repeater; A repeater is a network device that is used to retransmit the weaker signals in a
network. A repeater receives the. signals on the'electromagnetic or optical transmission
mediums.
(ii) Advantages of LAN
- Users can access the same files
- Messages can be sent between users
- Expensive hardware can be shared e.g. Laser printer Network software is cheaper than
buying individual packages
- A single internet connection can be shared among many users
b)i) TCP: Transmission Control Protocol: These are standard protocol for the Internet and
they are the rules for communicating over the Internet.
ii) FTP-File Transfer Protocol. FTP allows you to copy files on the Internet he.
downloading or uploading
iii) HTTP-Hypertext Transfer Protocol. HTTP defines how messages are formatted and
transmitted, and what actions Web servers and browsers should take in response to
various commands
iv) HTML- Hypertext Markup Language. HTML is a special command code used to
structure text and multimedia documents and to set up hypertext links between
documents, used extensively on the World Wide Web.
v) WWW-World Wide Web; A system of Internet servers that support specially formatted
documents, The documents are formatted in a markup language called HTML
(HyperText Markup Language) that supports links to other documents, as well as
graphics, audio, and video files.
vi) IP- Internet Protocol which are the rules for communicating over the Internet; it is the
primary protocol that establishes the Internet.
Kavungya answered the question on May 14, 2019 at 09:20
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