(A) TDM is a primary/scondry non priority system
(B) Peer to peer protocol provides equal status at all sites on the channel
(C) priority, non priority types come under master/slave protocol
(D) Both a and c
Mancheste code is:
(A) Bi-polar code
(B) non return to zero code
(C) polar code
(D) both b and c
Unmodulated signal coming from a transmitter is known:
(A) carrer signal
(B) baseband signal
(C) primary signal
(D) none of the above
Start and stop bits are used in serial communication for:
(A) error detection
(B) error correction
(C) synchronization
(D) slowing down the communication
baud means:
(A) the number of bits transfered per unit time
(B) the number of byts transfered per unit time
(C) the rate at which signals changes
(D) none of the above
The topology with highest reliability is:
(A) bus topology
(B) ring topology
(C) star topology
(D) mesh topology
Which of the following is wrong example of a network layer:
(A) Internet Protocol (IP)-APARENT
(B) X-25 Packet Level Protocol(PLP)-ISO
(C) Source routing and domain naming-USENET
(D) X-25 Packet Level 2-ISO
Error detection at the data link level is achieved by:
(A) bit stuffing
(B) cyclic reduancy codes
(C) hamming codes
(D) equilization