NIELIT CCC Previous Year Question Papers with Answers 2024-2025 Pdf - 2

Question: 6

Teleprinters

(A) Are same as teletypes

(B) Are used for printing at remote locations, not for input

(C) Offer both high speed operation and a variety of formatting controls

(D) Have a printer for output and a keyboard for input

Question: 7

What is the main difference between synchronous and a synchronous transmission?

(A) Clocking is derived from the data in synchronous transmission

(B) Clocking is mixed with data in asynchronous transmission

(C) Pulse height is different

(D) Bandwidth required is different

Question: 8

International bipolar violations

(A) Occur only in the laboratory

(B) Result in successive marks having opposite polarities

(C) Are used to convey information or maintain a minimum number of ones on a digital line

(D) Represent coding errors caused by the impairments

Question: 9

The interactive transmission of data within a time sharing system may be best suited to

(A) Biflex lines

(B) Simplex lines

(C) Half duplex lines

(D) Full duplex lines

Question: 10

Which data communication method is used to send data over a serial communication link?

(A) Full duplex

(B) Half duplex

(C) Simplex

(D) All of these