Visvesvaraya Technological University (VTU) 2009 M.Tech Computer Science Part-time - Question Paper

13. The issue with Manchester encoding is that ________________.
a) It quadruples the rate at which signal transitions are made on the link
b) It triples the rate at which signal transitions are made on the link
c) it doubles the rate at which signal transitions are made on the link
d) Consecutive 1s and 0s leads to baseline wander and clock recovery issues

14 The subsequent is an example of bit-oriented protocol
a) Binary Synchronous Communication (BISYNC) Protocol
b) Digital Data Communication Message Protocol (DDCMP)
c) Point-to-Point Protocol (PPP)
d) Synchronous Data Link Control (SDLC) Protocol

15. If P(x) is the transmitted message including redundant bits, and C(x) a divisor polynomial, then with CRC, which 1 of the subsequent corresponds to transmission without error?
a) We should be able divide P(x) by C(x), division need not be exact.
b) We should be able to divide P(x) by C(x) exactly, leaving a remainder of zero.
c) We should be able to divide P(x) by C(x), leaving a remainder of one.
d) We should be able to divide P(x) by C(x), leaving a remainder of two.

16. In a packet switching, if packets destined for a certain output arrive at a switch and their arrival rate exceeds the capacity of that output, then we have a issue of _______________.
a) switching
b) congestion
c) packing
d) contention
17. Which of the subsequent statement is correct?
a) A switch is a single-input, multi-output device, which transfers packets from an input to 1 or more outputs.
b) A switch is a single-input, single-output device, which transfers packets from an input to 1 or more outputs.
c) A switch is a multi-input, multi-output device, which transfers packets from an input to 1 or more outputs.
d) A packet is a single-input, multi-output device, which transfers switches from an input to 1 or more outputs.
18. The significant difference in cell formats (UNI & NNI) is that ___________.
a) UNI format replaces GFC filed with four extra bits of VPI
b) NNI format replaces GFC filed with four extra bits of VPI
c) UNI format replaces GFC filed with four extra bits of CRC
d) NNI format replaces GFC filed with four extra bits of CRC

Earning:   Approval pending.