C-DOT Technical Questions and answers,

C-DOT Technical Questions and answers,


Technical Questions

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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