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PSC HSST Computer Science Model Questions and Answers – Part 3

26
Not an Anti-virus software:
Answer
D. TROJAN
27
The following IP address format refers to:
D31 - 1
D30 - 1
D29 - 0
D28-D8 - NETWORK
D7-D0 - HOST
Answer
C. Class C Addresses
28
In C++, a pointer that is automatically being passed to a member function during its invocation is:
Answer
D. this pointer
29
With QBE, inserting records from one or more source tables into a single target table can be achieved by:
Answer
A. Append action query
30
Not an example of a network debugging utility:
Answer
D. telnet
31
A secure protocol for personal emails:
Answer
B. PGP
32
If f and g are functions, then f(n)=q(g(n)) if:
Answer
D. f(n)=O(g(n)) and f(n)=W(g(n))

33
Simplified form of the Boolean expression Y=A’BC’D’+ABC’D’+A’BCD’+ABCD’ is:
Answer
C. BD’

Explanation:
Y= A’BC’D’+ABC’D’+A’BCD’+ABCD’
=(A’+A)BC’D’+(A’+A)BCD’=BC’D’+BCD’=BD’(C’+C)=BD’

34
The postfix form of the expression (A+B)*C-D/E is:
Answer
A. AB+C*DE/-
35
When a process is accessing shared modifiable data, the process is said to be in:
Answer
B. Critical Section
36
The first MPI function call made by every MPI process is the call to:
Answer
C. MPI_Init()

37. The output generated by the following C program does not include the value:

#include<stdio.h>
 main()
 {
 int n=3;
 while(n>1)
 {
 if((n%2)!=1)
 n=n/2;
 else
 n=3*n+1;
 printf(“%dn”,n);
 }
 }

(A) 5 (B) 6
(C) 8 (D) 16
Answer: B

38
Boundary value analysis is a method for:
Answer
B. Black box testing
39
Dijkstra’s Banker’s algorithm is used for:
Answer
D. Deadlock Avoidance
40
is a famous law in logic known as:
Answer
D. De Morgan’s Law
41
The language accepted by a Push down Automata:
Answer
C. Type2
42
In parallel algorithm design, the process of grouping tasks into larger tasks in order to improve performance:
Answer
A. Agglomeration
43
A system call in Linux operating system to create a new child process, which is a copy of the parent process:
Answer
B. fork
44
A preemptive type of process scheduling strategy:
Answer
D. Shortest Remaining Time Next Scheduling
45
The type of geometric transformation applied to an object for repositioning it along a straight line path from one location to another:
Answer
C. Translation
46
Vigenere Cipher is a kind of:
Answer
C. Poly alphabetic Cipher
47
Recursive Descent Parsers are a type of:
Answer
A. LL parsers
48
The approach used for requirements elicitation in software design and development process:
Answer
D. All of these

49. The output generated by the following C program

#include<stdio.h>
 int Update(int x)
 {
 static int y=10;
 y+=x;
 return(y);
 }
 main()
 {
 int a,count;
 for(count=0;count<3;++count)
 {
 a=Update(count);
 printf(“%d”,a);
 }
 }

(A) 10 11 12 (B) 10 11 13
(C) 0 1 3 (D) Compilation Error
Answer: B

50
Area on earth where signals of a satellite can be received:
Answer
A. Foot-print

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