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Placement Materials & Answers-Free Download

C-DOT Placement Papers-Free Download

1.Shell is the exclusive feature of



(C) System software

(D) Application software

Ans: (A)

2.A UNIX device driver is

(A) Structured into two halves called top half and bottom half

(B) Three equal partitions

(C) Unstructured

(D) None of the above

Ans: (A)

3.A one-to-sixteen demultiplexer requires

(A) 2 select input lines.

(B) 3 select input lines.

(C) 8 select input lines.

(D) 4 select input lines.

Ans: D

4.In an analog multiplier, if both the inputs are positive or negative then the multiplier is said to be

(A) a two quadrant multiplier.

(B) a one quadrant multiplier.

(C) a four quadrant multiplier.

(D) a three quadrant multiplier.

Ans: C

5.The conversion time of a dual-slope ADC is typically in the range of

(A) 5 to 10 ns.

(B) 10 to 100 ns.

(C) 100 to 200 ns.

(D) 2 to 3 ns.

Ans: C

6.Which command is used to sort the lines of data in a file in reverse order




(D)sort -r

(E)None of the above


7.Which of the following command addresses all users who are currently hooked on?





(E)None of the above

Ans: C

8.What command is used to count the total number of lines, words, and characters contained in a file?




(D)count p

(E)None of the above

Ans: C

9.Which of the following command is used to access an SMB share on a Linux system?





(E)None of the above

Ans: C

10.What command is used to list contents of directories?





(E)None of the above

Ans: D

11.A computer cannot “boot” if it does not have the



(C)Operating system


Ans: C

12.The O/P of Half adder is in the form of.

(A) Sum

(B) carry

(C) sum & carry

(D) none of these

Ans: C

13.The full adder CKT adds. ………Digit at a time

(A) 1

(B) 2

(C) 3

(D) 4

Ans: C

14.A file is corrected immediately after the input of a transaction.This is an example of

(A) sorting


(C)on-line updating

(D) off-line updating

Ans: C

15.WAN hardware includes

(A)Multiplexors and routers


(C)Bridger and modems

(D)None of the above

Ans: A

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