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PSC HSST Computer Science Model Questions and Answers – Part 3

HSST Computer Science Model Questions and Answers – Part 3

HSST Computer Science Solved Paper
Date of Exam : 19.09.2012
Category No. : 111.2010
Alpha Code : C

HSST Computer Science Model Questions and Answers – Part 1

HSST Computer Science Model Questions and Answers – Part 2

HSST Computer Science Model Questions and Answers – Part 4

PSC HSST Computer Science Model Questions and Answers – Part 5

PSC HSST Computer Science Model Questions and Answers – Part 6

1
A document preparation software:
Answer
C. LATEX
2
A technique in which system resources are shared among multiple users:
Answer
A. Multiplexing
3
Interaction modeling cannot be done using:
Answer
A. State Diagrams
4
The number of bits that can be transmitted over a network in a certain period of time:
Answer
C. Bandwidth
5
Which of these not a markup language?
Answer
D. XGML
6
A network topology that combines features of linear bus and star topology:
Answer
C. Tree
7
If language L={0,1}*, then the reversed language LR =
Answer
A. {0,1}*
8
In Linux, the subdirectory that contains system configuration files including user passwords:
Answer
C. /etc
9
SQL command to delete a column from an existing table:
Answer
A. Alter table
10
A technique not associated with data mining:
Answer
D. Dimensionality Modeling
11
Memory bank experiencing too much contention from processor:
Answer
C. Thrash
12
The number of nodes in a complete binary tree of height n:
Answer
C. 2n+1-1
13
The science and art of breaking ciphers.
Answer
C. Cryptanalysis
14
A raster scan display system with 24 bits per pixel and a screen resolution of 1024x1024 requires a frame buffer size.
Answer
B. 3 Mega Bytes
15
Not a parallel programming language.
Answer
D. C++
16
Process of mapping a network interface IP address to its hardware address:
Answer
A. ARP

17. For the following sample database table staff:

Staff no Name Designation Branch Salary
SL21 John Assistant B003 30000
SG37 Ann Supervisor B007 42000
SL25 Julie Assistant B007 32000
SL52 Susan Manager B003 51000
SG10 David Manager B004 47000

The SQL query: SELECT COUNT(Staff no) AS mycount, SUM(Salary) AS mysum FROM Staff WHERE Designation=’Manager’
Returns the result
(A) mycount=2, mysal=47000
(B) mycount=2, mysal=98000
(C) mycount=5, mysal=47000
(D) mycount=5, mysal=98000
Answer: B

18
Linux partitions are created using the file system:
Answer
C. EXT3
19
The local area network technology used in Ethernet.
Answer
B. CSMA/CD
20
Data abstraction means:
Answer
D. Putting together essential features without including background details
21
A hardware interface that allows for the connection of several peripheral devices to a single PCI board.
Answer
A. SCSI
22
If n represents the dimension of cube and K, the radix (no. of nodes along each dimensions) then the number of nodes N of a k-ary n-cube network is:
Answer
D. N=kn

23. The output generated by the following C program:

#include<stdio.h>
 main()
 {
 int v=3;
 int *pv;
 pv=&v;
 *pv=0;
 printf(“*pv=%d v=%d”,*pv,v);
 }

(A) *pv=0 v=0 (B) *pv=0 v=3
(C) *pv=3 v=3 (D) *pv=3 v=0
Answer: A

24
A famous technique used in data warehousing:
Answer
C. OLAP
25
The environment variable in Linux, that contain a list of directories the shell automatically recognizes.
Answer
A. $PATH

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