1)What do you understand by data communication?
2)What is networking?
3)Name the components of a)directly connected computer network b)Computer network connected via telephones
4)What is the communication channel?
5)What is a modem?
6)Name the different types of computer network.
7)The _______ converts digital signals to analog signals for the purpose of transmitting data over telephone lines.
8)Which of the following is not a transmission medium?
a)Telephone lines b)Coaxial cable c)Modem d)Microwave system
9)Which of the following is required to communicate between two computers?
a)Communications software/hardware b)Protocol c)Transmission medium d)all this
10)what are the components in computer networks?
11)Discuss the functioning of the modem in brief.
12)What is the difference between internet and intranet?
Answers
Answer:
ksi ka ans nhi pta hai humko
ANSWER 1 = Data communication refers to the exchange of data between a source and a receiver via form of transmission media such as a wire cable. Data communication is said to be local if communicating devices are in the same building or a similarly restricted geographical area.
ANSWER 2 = the practice or system of meeting or talking to other people doing the same kind of work as you or who may be useful to your work
ANSWER 3 = Network interface cards (NICs), ISDN adapters, and system area network cards. There are numerous devices required for a computer network which is given below in brief.
ANSWER 4 = A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking. ... Cable or wire line media use physical wires of cables to transmit data and information.
ANSWER 5 = Modem is short for "Modulator-Demodulator." It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. ... Similarly, it converts digital data from a computer or other device into an analog signal that can be sent over standard telephone lines.
Modem is short for "Modulator-Demodulator." It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. ... Similarly, it converts digital data from a computer or other device into an analog signal that can be sent over standard telephone lines.
ANSWER 6 = A computer network is mainly of four types:
A computer network is mainly of four types:LAN(Local Area Network)
A computer network is mainly of four types:LAN(Local Area Network)PAN(Personal Area Network)
A computer network is mainly of four types:LAN(Local Area Network)PAN(Personal Area Network)MAN(Metropolitan Area Network)
A computer network is mainly of four types:LAN(Local Area Network)PAN(Personal Area Network)MAN(Metropolitan Area Network)WAN(Wide Area Network)
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