Data Communication and Networking MCQs and Notes

M

Mr. Dubey • 52.30K Points
Coach

Q 1. Which network has connectivity range up to 10 meters?

(A) LAN

(B) PAN

(C) MAN

(D) WAN

M

Mr. Dubey • 52.30K Points
Coach

Q 2. The Network topology that supports bi-directional links between each possible node is

(A) Ring

(B) Star

(C) Tree

(D) Mesh

M

Mr. Dubey • 52.30K Points
Coach

Q 3. Which of the following is not a field in the Ethernet Message packet?

(A) Type

(B) Data

(C) Pin-code

(D) Address

M

Mr. Dubey • 52.30K Points
Coach

Q 4. In session layer, during data transfer, the data stream responsible for the "control" purpose (i.e control of the session layer itself) is

(A) Regular Data

(B) Typed data

(C) Capability Data

(D) Expedited Data

M

Mr. Dubey • 52.30K Points
Coach

Q 5. The ________ measures the number of lost or garbled messages as a fraction of the total sent in the sampling period.

(A) Residual Error Rate.

(B) Transfer Failure Probability.

(C) Connection release failure probability.

(D) Connection establish.

M

Mr. Dubey • 52.30K Points
Coach

Q 6. Maximum data rate of a channel for a noiseless 3-kHz binary channel is

(A) 3000bps

(B) 6000 bps

(C) 1500 bps

(D) None of these

M

Mr. Dubey • 52.30K Points
Coach

Q 7. Unmodulated signal coming from a transmitter is know as

(A) Carrier signal

(B) Baseband signal

(C) Primary signal

(D) None of these

M

Mr. Dubey • 52.30K Points
Coach

Q 8. Start and stop bits are used in serial communication for

(A) Error detection

(B) Error correction

(C) Synchronization

(D) Slowing down the communication

M

Mr. Dubey • 52.30K Points
Coach

Q 9. "BAUD" rate means

(A) The number of bits transmitted per unit time.

(B) The number of bytes transmitted per unit time.

(C) The rate at which the signal changes.

(D) None of the above

M

Mr. Dubey • 52.30K Points
Coach

Q 10. Error detection at the data link level is achieved by

(A) Bit Stuffing

(B) Cyclic Redundancy Code

(C) Hamming Code

(D) Equalization