Define “Computer network”
A computer network is a group of interconnected computer systems and other computing devices
What is LAN
LAN is short form of Local Area Network. It is digital communication system that interconnects a
large number of computers within a radius of 1km.
What is WAN
WAN is short form of Wide Area Network. It interconnects a large number of computers in wide
geographical area. It may span across countries or continents.
State 2 advantages of using a network
1.The information can easily be shared with others.
2. It reduces the cost of hardware
State 2 disadvantages of using a network
- Security Risk
- Data Loss or corruption
Explain the use of switch
It is a hardware device to which computers are connected. The main function of switch is to
directly send the data to the intended computer.
Explain the use of router
It is a networking device used to connect and facilitate transfer of data in the form of packets between two network.
Explain the use of NIC
NIC, short for Network Interface Card, is an expansion card which provides the network access to our computer.
Explain the use of gateway
It is a network device that allows the data to flow between two different networks which may use same protocol .
State the full form of HTTPS
Hypertext Transfer Protocol Secure
State the full form of FTP
File Transfer Protocol
State the full form of SMTP
Simple Mail Transfer Protocol
State the full form of IMAP
Internet Message Access Protocol
State the full form of TCP/IP
Transmission Control Protocol/Internet Protocol
Define Topology.
Topology refers to the geometric arrangement of computers or nodes in a network.
Name the different types of topologies
Bus topology, Ring topology, Star topology, Tree topology, Mesh topology
Define Modem
Modem stands for MODULATOR-DEMODULATOR. It convers data from digital to analog and vice
versa.
Define Website
Website is a collection of web pages which are interlinked to each other.
Define Hyperlink
A hyperlink is simply a part of the web page that is linked to a URL. A hyperlink can appear as a text, an image, button or arrow.
