Top 1000+ Solved Computer Networks MCQ Questions Answer
Q. What is the maximum size of data that the application layer can pass on tothe TCP layer below?
a. Any size
b. 2^16 bytes-size of TCP header
c. 2^16 bytes
d. 1500 bytes
Q. A computer on a 10Mbps network is regulated by a token bucket. The token bucket is filled at a rate of 2Mbps. It is initially filled to capacity with 16Megabits. What is the maximum duration for which the computer can transmit at the full 10Mbps?
a. 1.6 seconds
b. 2 seconds
c. 5 seconds
d. 8 seconds
Q. In Ethernet when Manchester encoding is used, the bit rate is:
a. Half the baud rate.
b. Twice the baud rate.
c. Same as the baud rate.
d. none of the above
Q. Let G(x) be the generator polynomial used for CRC checking. What is the condition that should be satisfied by G(x) to detect odd number of bits in error?
a. G(x) contains more than two terms
b. G(x) does not divide 1+x^k, for any k not exceeding the frame length
c. 1+x is a factor of G(x)
d. G(x) has an odd number of terms.
Q. In serial data transmission, every byte of data is padded with a ‘0’ in thebeginning and one or two ‘1’ s at the end of byte because
a. Receiver is to be synchronized for byte reception
b. Receiver recovers lost ‘0’ and ‘1’s from these padded bits
c. Padded bits are useful in parity computation
d. None of these
Q. Which one of the following statements is FALSE?
a. Packet switching leads to better utilization of bandwidth resources than circuit switching.
b. Packet switching results in less variation in delay than circuitswitching.
c. Packet switching requires more per packet processing than circuitswitching
d. Packet switching can lead to reordering unlike in circuitswitching
Q. Which of the following statements is FALSE regarding a bridge?
a. Bridge is a layer 2 device
b. Bridge reduces collision domain
c. Bridge is used to connect two or more LAN segments
d. Bridge reduces broadcast domain
Q. In Ethernet CSMA/CD, the special bit sequence transmitted by media accessmanagement to handle collision is called
a. Preamble
b. Post amble
c. Jam
d. None of the above
Q. The physical layer translates logical communication requestsfrom the into hardware specific operations.
a. Data link layer
b. Network layer
c. Transport layer
d. Application layer
Q. A single channel is shared by multiple signals by
a. Analog modulation
b. Digital modulation
c. Multiplexing
d. Phase modulation
Q. Wireless transmission of signals can be done via
a. Radio waves
b. Microwaves
c. Infrared
d. All of the mentioned