41. Error
correction in the data link layer is achieved by:

(A) Equalization (B) Cyclic redundancy codes

(C) Hamming codes (D) Bit stuffing

Answer: C

__Explanation:__
Cyclic Redundancy Code is an error detection
code only. Hamming Code is an error correcting code used in Data link layer.

42. The
system program that set up executable program in RAM, ready for execution is:

(A) Loader (B)
Linker

(C) Linkage Editor (D) Compiler

Answer: A

43. File
transfer protocol that uses UDP is:

(A) FTP (B)
TFTP

(C) TELNET (D)
NFS

Answer: B

44. To
check the presence of a computer in the network, use the command:

(A) ping (B)
cmd

(C) check (D)
ipconfig

Answer: A

45. In
cryptology the code STUDYING is written as RUTEXJMH, then the code for OTHER
is:

(A) TOHRE (B)
ROHTE

(C) NUGFQ (D)
MOTHR

Answer: C

46. The
Number of equivalent relations of the set {1,2,3,4} is:

(A) 4 (B)
15

(C) 16 (D)
24

Answer: B

47. Which
of the sets are empty?

(A) {x:x=/x} (B)
{x:x=x}

(C) {x:x=/x2} (D) {x:x=/xx}

Answer: A

48. In
any undirected graph, the sum of the degrees of all nodes is:

(A) must be even (B) is always ODD

(C) need not be even (D) is twice number of edges

Answer: A & D

__Explanation:__
Option D is true. But it also implies that
option A is true. Because twice of any number must be even.

49. An
undirected graph is Eulerian if and only if all vertices of G are of the sum of
the degrees of all nodes is:

(A) Same degree (B) ODD degree

(C) Need not be ODD (D) is twice number of edges

Answer: B

50. An
undirected graph G has n vertices and n-1 edges then G is:

(A) Cyclic (B)
Addition of edge will make it cyclic

(C) Eulerian (D)
Is a Tree

Answer: D

51. Graph
having every pair of vertices connected is called:

(A) Cycle graph (B) Complete graph

(C) Peterson graph (D) Is a Tree

Answer: B

52. The
Eigen vectors of a real symmetric matrix corresponding to different Eigen
values are:

(A) Orthogonal matrix (B) Singular matrix

(C) Non-singular matrix (D) Inverse matrix

Answer: A

53. The
system of equations 4x+6y=8, 3x+2y=1, 7x+8y=9 has:

(A) only one solution (B) infinite solutions

(C) two solutions (D) none of these

Answer: C

54. The
Eigen values of the square matrix are:

(A) positive (B) imaginary

(C) real (D) negative

Answer: C

55. The
Equations will have:

(A) no unique solution (B) only one solution

(C) has only two solutions (D) has infinite

Answer: Question not complete.

56. Which
is fastest?

(A) DTL (B)
TTL

(C) ECL (D)
CMOS

Answer: C

57. Which
is commutative but not associative?

(A) NOT (B)
NOR

(C) XOR (D)
NAND

Answer: B, D

**Explanation:**

NAND and NOR operations are commutative, but
not associative.

(x↓y)↓z ≠ x↓(y↓z) (↓ = NOR operation)

(x↑y)↑z ≠ x↑(y↑z) (↑ = NAND operation)

58. Which
is Universal gate?

(A) AND (B)
NOR

(C) XOR (D)
NOT

Answer: B

__Explanation:__
A universal gate is one from which all other
basic gates can be formed. NAND and NOR are Universal gates.

59. How
many NAND gates are needed to perform X.Y?

(A) 3 (B) 4

(C) 2 (D) 1

Answer: B

60. Which
is non-volatile?

(A) RAM (B)
PROM

(C) EPROM (D)
ROM

Answer: D