Exam Details

Subject
Paper
Exam / Course
Department
Organization Kerala Public Service Commission
Position computer operator
Exam Date 14, July, 2015
City, State kerala,


Question Paper

132/2015

Maximum: 100 marks Time 1 hour and 15 minutes
1. For Intel Core i3 processor, GMCH is integrated with:

South Bridge GPU


North Bridge FCH


2. In order to perform a critical task in timeliness, a mUltimedia system may use which of the following disk scheduling?

SSTF SATF


Elevator Real Time


3. An omega switching network with n CPU and n memories requires how many switches?

(nlog2n)/2 log2


log2 n log2 n/2


4. The minimum pit length for a single layer DVD is

500 400


·600 250


5. A pipelining system with n segments takes 50 sub operations in a sequence. The time taken to complete a sub operation in each segment is 8 nsec. If the task is completed in 424 nsec, what is the value of

4
6. In multiprocessor system, a processor generated signal that serves to prevent other processors from using the system bus as long as the signal is active can be called as

Semaphore Pipe


Hardware Lock Critical Session


At the beginning of an instruction cycle, the content of the Instruction Register is 5 and that of Program Counter is 320. When the instruction is read, the address part of the instruction is the number 7. Then the effective address in relative address mode is

328 327


325 342'


A 3

[P.T.O.)

8. The return address from a subroutine call is arranged as

Round Robin FIFO


LIFO Queue


9. The Bootstrap Loader resides in

Hard Disk Any bootable device


RAM ROM


10. The IRQ commonly assigned to Hard Disk Controller is:
11 12
13 14
11. For DDR2 type RAM with 8 internal blocks and clock speed 533 MHz, the maximum average periodic refresh rate can be
4.5 7.8
33.3 17.5
12. An operating system written as a set of procedures in which, each can call any other without any reservation is

Virtual System Layered System


Distributed System Monolithic System


13. A program in execution state is called as

Shell Process


Task Thread


14. A situation in which a multiprogramming system spends more time in page I/O

Starvation Dead Lock


Fragmentation Thrashing


15. Calculate the average access time for the sector of a disk with 512 bytes per sector and 10 ms of average seek time. The disk rotates at a speed of 7200 rpm and transfers data at a rate 4 ME/Sec. The controller overhead is 1 ms. Assume that there is no service time
19.6 ms 16.2 ms
15.3 ms 10.3 ms
16. When a process wants to print a file, it writes the file name in a directory called:

Spooler Buffer


Daemon Log


132/2015 4 A
17. In a demand paging system, M is the time to access memory, F is the average time to service a page fault. P is the probability of page fault. Then the effective access time is

P • M • F M • F


• M P • F • P


18. Externally defined symbols are resolved by

Compiler Linker


Loader Lexical Analyser


19. The initial value of a semaphore that ensures only one of the many processes enter the critical session is
0 1
2
20. Debugging a kernel code is a difficult task, because of:

kernel code cannot be executed easily under a debugger


bugs in a kernel code cannot be traced easily, because it is a set of procedures related to a separate process and there will be a little evidence to track the errors


errors may be hard to reproduce and may collapse the entire system


all the above reasons


21. Which of the following HTML tag has an attribute called Frame?

<INPUT> <FORM>


<FRAMESET> <TABLE>


22. The HTML DOM Event that is triggered automatically when a user enters a web page is

OnLoad OnFocus


OnOpen OnShow


23. CORBA programmers can develop distributed applications in using:

Orbix OpalOrb


GlOP . EJB


24. XML captures Hypertext information using:

XLL


XLS DTD


25. In DHCP, the UDP port number for sending data to the server is

60 62


65 . 67


A 5 132/2015 [p.:r.O.]
26. Which of the following statement is false?

It is not possible to convert an HTML document into an XML document


Both XML and HTML are subset of SGML


A well formatted XML document need not require DTD


CSS works better with XML than with HTML


27; In a style sheet, the style rule from another CSS file can be loaded using:

@include @import


@attach @load


28. The easiest method for a Web Server program to store the client information in a web
I
browser for future use is

Applet Cookie


Template Log file


29. A form of address spoofing resulting in denial of service attack:

Session Hijacking Island Hopping


Sniffing War Dialing


30. Which of the following is a JavaScript debugging method?

window.alert console.log


document:write document.getElementById


31. Which of the following statement is false?

Samba can play a number of server roles such as File Server, Print Server, Primary Domain Controller etc.


Samba allows to share files with windows host


SWAT requires no web server running


SWAT interface cannot be directly accessed from web browser


32. Simplest way to pass data between two Linux programs running in a system is

Socket Pipe


Semaphore RPC


33. The Linux command that can be used to search for a pattern matching string in a file


find which


grep search


132/2015 6 A

34. In Redhat Linux, the powerful and secure method for network configuration is

NetBios Netstart


IPSec Apache


35. The file system that is the best choice for new installations of Linux is
NTFS EX2
EX4 JFS
36. In a Linux kernel, two mapping registers are simultaneously used as compatibly mapped buffers for CPU and peripherals. Then the DMA Mapping is

Consistent Mapping Mapping


Streaming Mapping Scatter Mapping


37. A format that can only archive a group related files into a single file and cannot perform any compression by itself:

rar bz2


tar gz


38. GNOME Display Manager can be configured by editing:

gdm.conf GNOMKconf


Xserver.conf . XDM.conf


39. The powerful online help system of Linux is

who man


more how


40. A Linux tool that can be used to create hard disk partitions only at the time of Linux installation:
fdisk cfdisk
Disk Mount DRUID

41. The average time required to perform a successful sequential search for an element in a array with n elements:

n/2





42. Each node in a tree has a value greater than all values in the left subtree and has a value less than all values in the right subtree. Then the tree is

Binary search tree Complete tree


Balanced tree Threaded tree


7 132/2015 [P.T.a.]
43. The sort method that switches the adjacent elements, if needed after comparison is

Heap sort Quick sort


Insertion sort Bubble sort


44. Minimum number of queues needed to implement the priority queue is
1 2

45. After a sequence of steps in an algorithm, a linked list reaches the following step,
START NULL
Then the situation is,


overflow underflow


initialisation saturation


46. The result of following expression in polish notation is 432+·84/­
13 12
18 34
47. The data structure that can implement a recursive procedure is:

Tree Linked List


Queue Stack


48. For a sorted linked list of length the worst case time required to search a given element is
.O(n)
O(lOg2 O(log2 2n)
49. The characteristic of the elements that is maximum utilised in binary search is

Length of the list Number of elements in the list


Order of the list Highest value in the list


50. For a binary tree with nine nodes, the result of inorder traversal is DBA G E C H F 1. And that of postorder traversal is D B G E H I F C A Then the result of preorder traversal
IS

ABDCEGFHI AB DECFGHI


ADBCEFGHI ADBEFCGHI


132/2015 8 A

51. The communication device that uses spanning tree algorithm to avoid loops:

Router Gateway


Bridge Switch


52. Delaying an outgoing control frame in order to hook onto the next outgoing data frame is called:

Packet Sniffing Compounding


Optimal Routing Piggy Backing


53. Dijkstra's algorithm facilitates:

Multipathing Shortest Path Routing


Isolated Routing Centralised Routing


54. The OSI Layer in which the auto negation resides is

Physical Network


Transport Data Link


• 55. The transmission media that uses BNC connector is
Coaxial Cable UTP
.
STP Optical Fiber
56. The mode of communication used in a serial communication channel is

Simplex Half Duplex


Full Duplex Both and


57. The communication standard for a wireless network is specified by

802.11 802.21


802.8 802.12


58. The FDDI network is an example of:

Bus. Star


Ring Mesh


59. A standard protocol for packet switching is

POTS SMTP


PSTN X.25


A9 132/2015 [P.T.O.]

60. The number of bits in a MAC Address is

32 48


64 128


61. Which of the following is not a relational operator?

Difference Addition


Division Selection


62. In DBMS, the front end application performs:

Storage function Access control


Processing function All of the above


63. In a table, the among a set of values are represented by

Tuple Attribute


Entity Key


64. The Schema that provides a standard way of organising information into accessible parts:

logical physical


external storage level


65. The physical location of a database record is determined by a key transformation in

Index Random


Hash Pointer


66. Which of the following is not a set operator in SQL?

UNION UNION ALL


MINUS LIKE


67. Which one of the following is a procedural language?

Domain relational calculus System-R


Query language Relational algebra


68. A buffer that has been changed in database buffer memory, but not yet written to disk is

Swap space Latch


Redo Log Dirty Block


69. The timestamp ordering that makes no distinction between the Read and Write access so that only a single value is required for each granule is

Partial timestamp ordering Total timestamp ordering


Multi version timestamp ordering Optimal timestamp ordering


132/2015 10 A

70. The constraint specifying that account number must be in between 50000 and 80000 is a Integrity constraint Referential constraint Default constraint Key constraint
71. In a Java program, the length in pixel of a string can be. obtained using the method: stringwidth strlength length strwidth
72. Select the correct statement from the following: char p (char*)malloc(100); char p (malloc(100»; char (char) ma:lloc(lOO); char (char*)malloc(100);
73. The statement that is least preferred in C programs in general is Recursion Nesting of different type of loops Double pointer Unconditional Jump to a label
74. What will be the output offollowing program? #include<iostream.h> void main char *cp="computer"; cout«cp; jJuter nputer mputer quter
75. What will be the output of following program? #include<iostream.h> void main int cout«z; 15 17 .. 16 18 •

A 11 132/2015
[P.T.a.)
76. In order to get the MIME type of a file, a Servelt may use the methods defined in the interface:

servlet Info servlet container


Servlet Config servlet context


77. Java method that can be used to pause the current thread execution until and unless another thread completes its execution:

sleep yield


join CD) suspend


78. Which Java interface can be used to store objects using a key-value pair, avoiding duplicate values?

Java.util.Collection Java.util.Set


Java.util.List CD) Java.util.Map


79. Which of the following statementis false for programs?

Throw cannot be executed, from a function called from a try block


Unhandled throw results in an abnormal program termination


Throw is a keyword for newer versions of compiler CD) Catch block may be selected by matching data type with the value given in throw


80. .Which of the following data type be used along with switch statement for comparison, in

(int double


enum CD) struct


81. 67th can Golden plan for best film given for:

Goodbye to language The Wonders


Mister Turn CD) Winter Sleep


82. The 'Ring Spot Virus' is the most destructive disease of:

Papaya Banana


Mango CD) Coffee


83. The ratio of width of our National Flag to its length is

3:5 2:4


2:3 CD) 3:4


132/2015 12 A
1 _
84. Prime Minister Narendxa Modi sworn is as the: 16th Prime Minister 14th Prime Minister 15th Prime Minister 13th Prime Minister
85. The fourth Chief Minister of Kerala EMS R. Sankar Pattom Thanupillai A.K. Antony
86. Who is known as 'Indian Bismark? Kamaraj Sardar Vallabhai Patel Nehru Rajaji
87. Kerala Varma Pazhassi Raja was short to death in 1805, June 11 1805, October 30 1805, July 7 1805, November 30
88. Which of the following is a biography of the lady Mountbatten? Edwine Mountbatten Edwine Mountbatten life of her own Edwine Mountbatten -Her relationship with Nehru Mountbatten
89. Durant Cup is associated with: Volley ball Cricket Foot ball Hockey
90. National Maritime day follows on April5 October 5 93) June 5 September 5
91. The temple entry proclamation of Sree Chithira Thirunal was in the year: 1933 1935 1934 1936
92. The ozone layer restricts: Visible light Ultraviolet radiation Infrared radiation X-rays and Gamma rays
A 13 132/2015 [P.T.a.)



93. Each year World Red Cross and Red Crescent day is
May28 .

May 8


March 20

January 10

94. The proposed Ken-Betwa river linking project is in which state?
Odisha

Maharashtra


Madhya Pradesh

Gujar.at

95. The uprising of 1857 was described as the first war of Indian Independence by

E.G. Tilak V.D. Savarkar


S.N. Sen R.C. Majumdar


96. The title of 'Viceroy' was added to the office of the Governor General ofIndia for the first time in:
1856

1848


1862

1858'

97. Who among the following belong to Moderates?
B.G. Tilak W.C. Banerjee
Lala Lajpat Rai Bipin Chandra Pal
98. Cripps Mission arrived in India in the year:
1947 1946
1942 1940

The Indian who attended all the Three Round Table Conference was:99.

Dr.B.R.Ambedkar Mahatma Gandhi


Muhammad Ali Jinnah Annie Besant


100. Who is the father of English poetry? Wordsworth

Milton


Chaucer

Charles Dickens

A
14
132/2015


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