Mrs.Hema.C.N, PGT (CS)
Date of submission: 28 June 2011
 What do you mean by Computer Network?
 How computer network leads to increase productivity, cast saving and time saving?
What do you mean by the term Servers? Name different types of servers.
 What is meant by communication channels? Give two examples of guided media and two examples of unguided media.
Expand the terms: UTP Cable and STP Cable and also compare them.
 ABC organization wants to set up LAN in their organization within building. They want Data transfer rate more than 1 Gbps and with less expansive network cable. Can you suggest which cable is most suitable for them?
 Which of the cable has very large Data transfer range and fast transfer rate?
a. Optical Fiber b. UTP cable c. Ethernet cable d. Coaxial Cable
 Which of the following is used for wireless communication?
a. Optical Fiber b. UTP cable c. Radio Waves d. Coaxial Cable
 Which of the following is not a transmission medium?
a. Telephone Network b. Coaxial Cable c. Modem d. Microwaves
 Identify the topologies used for the following.
(1) In it the nodes form a circular path for data to travel and each node is connected to two other nodes.
(2) Each node is connected on single transmission cable and data transmit from one end to other end.