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BRANCH: COMPUTER SCIENCE 7. In Unix, Which system call creates the new
TIME: 1 hour process?
MARKS: 100 a) fork
O/S:- b) create
1. Remote Procedure Calls are used c) new
____________ d) none of the mentioned
a) for communication between two 8. A process can be terminated due to
processes remotely different from each __________
other on the same system a) normal exit
b) for communication between two b) fatal error
processes on the same system c) killed by another process
c) for communication between two d) all of the mentioned
processes on separate systems 9. A Process Control Block (PCB) does not
d) none of the mentioned contain which of the following?
2. To differentiate the many network a) Code
services a system supports ______ are used. b) Stack
a) Variables c) Bootstrap program
b) Sockets d) Data
c) Ports 10. The number of processes completed per
d) Service names unit time is known as __________
3. To access the services of operating system, a) Output
the interface is provided by the ___________ b) Throughput
a) System calls c) Efficiency
b) API d) Capacity
c) Library 11. The state of a process is defined by
d) Assembly instructions __________
4. Which one of the following is not true? a) the final activity of the process
a) kernel is the program that constitutes b) the activity just executed by the process
the central core of the operating system c) the activity to next be executed by the
b) kernel is the first part of operating process
system to load into memory during booting d) the current activity of the process
c) kernel is made of various modules which 12. Which of the following do not belong to
cannot be loaded in running operating queues for processes?
system a) Job Queue
d) kernel remains in the memory during b) PCB queue
the entire computer session c) Device Queue
5. Which one of the following error will be d) Ready Queue
handle by the operating system? 13. When the process issues an I/O request
a) power failure __________
b) lack of paper in printer a) It is placed in an I/O queue
c) connection failure in the network b) It is placed in a waiting queue
d) all of the mentioned c) It is placed in the ready queue
6. . In operating system, each process has its d) It is placed in the Job queue
own __________ 14. What will happen when a process
a) address space and global variables terminates?
b) open files a) It is removed from all queues
c) pending alarms, signals and signal b) It is removed from all, but the job queue
handlers c) Its process control block is de-allocated
d) all of the mentioned

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d) Its process control block is never de- a) PCI bus
allocated b) SCSI bus
COA:- c) Memory bus
15. The minimum time delay between two d) Rambus
successive memory read operations is 23. ANSI stands for __________
______ a) American National Standards Institute
a) Cycle time b) American National Standard Interface
b) Latency c) American Network Standard Interfacing
c) Delay d) American Network Security Interrupt
d) None of the mentioned 24. A processor performing fetch or decoding
16. MFC is used to _________ of different instruction during the
a) Issue a read signal execution of another instruction is called
b) Signal to the device that the memory ______
read operation is complete a) Super-scaling
c) Signal the processor the memory b) Pipe-lining
operation is complete c) Parallel Computation
d) Assign a device to perform the read d) None of the mentioned
operation 25. . The clock rate of the processor can be
17. __________ is the bottleneck, when it comes improved by _________
computer performance. a) Improving the IC technology of the logic
a) Memory access time circuits
b) Memory cycle time b) Reducing the amount of processing done
c) Delay in one step
d) Latency c) By using the overclocking method
18. VLSI stands for ___________ d) All of the mentioned
a) Very Large Scale Integration 26. An optimizing Compiler does _________
b) Very Large Stand-alone Integration a) Better compilation of the given piece of
c) Volatile Layer System Interface code
d) None of the mentioned b) Takes advantage of the type of
19. The cells in each column are connected to processor and reduces its process time
______ c) Does better memory management
a) Word line d) None of the mentioned
b) Data line 27. The ultimate goal of a compiler is to ________
c) Read line a) Reduce the clock cycles for a
d) Sense/ Write line programming task
20. To extend the connectivity of the processor b) Reduce the size of the object code
bus we use ________ c) Be versatile
a) PCI bus d) Be able to detect even the smallest of
b) SCSI bus errors
c) Controllers 28. SPEC stands for _______
d) Multiple bus a) Standard Performance Evaluation Code
21. IBM developed a bus standard for their b) System Processing Enhancing Code
line of computers ‘PC AT’ called _____ c) System Performance Evaluation
a) IB bus Corporation
b) M-bus d) Standard Processing Enhancement
c) ISA Corporation
d) None of the mentioned DATABASE MANAGEMENT SYSTEM:-
22. The bus used to connect the monitor to the 29. Which one of the following is used to
CPU is ______ define the structure of the relation,

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deleting relations and relating schemas? c) Not null
a) DML(Data Manipulation Language) d) Distinct
b) DDL(Data Definition Language) 36. . A Delete command operates on ______
c) Query relation.
d) Relational Schema a) One
30. Which one of the following provides the b) Two
ability to query information from the c) Several
database and to insert tuples into, delete d) Null
tuples from, and modify tuples in the 37. Which one of the following deletes all the
database? entries but keeps the structure of the
a) DML(Data Manipulation Language) relation.
b) DDL(Data Definition Language) a) Delete from r where P;
c) Query b) Delete from instructor where dept
d) Relational Schema name= ’Finance’;
31. To remove a relation from an SQL c) Delete from instructor where salary
database, we use the ______ command. between 13000 and 15000;
a) Delete d) Delete from instructor;
b) Purge 38. The condition allows a general predicate
c) Remove over the relations being joined.
d) Drop table a) On
32. . A _____ indicates an absent value that may b) Using
exist but be unknown or that may not exist c) Set
at all. d) Where
a) Empty tuple DATA STRUCTURE USING C:-
b) New value 39. Which of these best describes an array?
c) Null value a) A data structure that shows a
d) Old value hierarchical behavior.
33. If the attribute phone number is included b) Container of objects of similar types
in the relation all the values need not be c) Arrays are immutable once initialized.
entered into the phone number column. d) Array is not a data structure
This type of entry is given as 40. How do you initialize an array in C?
a) 0 a) int arr[3] = (1,2,3);
b) – b) int arr(3) = {1,2,3};
c) Null c) int arr[3] = {1,2,3};
d) Empty space d) int arr(3) = (1,2,3);
34. The predicate in a where clause can 41. How do you instantiate an array in Java?
involve Boolean operations such as and. a) int arr[] = new int(3);
The result of true and unknown is_______ b) int arr[];
false and unknown is _____ while unknown c) int arr[] = new int[3];
and unknown is _____ d) int arr() = new int(3);
a) Unknown, unknown, false 42. Process of inserting an element in stack is
b) True, false, unknown called ____________
c) True, unknown, unknown a) Create
d) Unknown, false, unknown b) Push
35. Using the ______ clause retains only one c) Evaluation
copy of such identical tuples. d) Pop
a) Null 43. . In a stack, if a user tries to remove an
b) Unique element from empty stack it is called
_________

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a) Underflow (b) Θ(2^n) and Θ(n)
b) Empty collection (c) Θ(n) and Θ(2^n)
c) Overflow (d) Θ(2^n) and Θ(2^n)
d) Garbage Collection 51. What will be the output of the following C
44. Pushing an element into stack already code?
having five elements and stack size of 5, 1. #include <stdio.h>
then stack becomes 2. void main()
a) Overflow 3. {
b) Crash 4. int x = 0, y = 2, z = 3;
c) Underflow 5. int a = x & y | z;
d) User flow 6. printf("%d", a);
45. Entries in a stack are “ordered”. What is 7. }
the meaning of this statement? a) 3
a) A collection of stacks is sortable b) 0
b) Stack entries may be compared with the c) 2
‘<‘ operation d) Run time error
c) The entries are stored in a linked list 52. What will be the output of the following C
d) There is a Sequential entry that is one by code?
one 1. #include <stdio.h>
46. The postfix form of the expression (A+ 2. void main()
B)*(C*D- E)*F / G is? 3. {
a) AB+ CD*E – FG /** 4. float x = 0.1;
b) AB + CD* E – F **G / 5. printf("%d, ", x);
c) AB + CD* E – *F *G / 6. printf("%f", x);
d) AB + CDE * – * F *G / 7. }
47. The data structure required to check a) 0.100000, junk value
whether an expression contains balanced b) Junk value, 0.100000
parenthesis is? c) 0, 0.100000
a) Stack d) 0, 0.999999
b) Queue 53. What will be the output of the following C
c) Array code?
d) Tree 1. #include <stdio.h>
48. What data structure would you mostly 2. void main()
likely see in a non recursive 3. {
implementation of a recursive algorithm? 4. double x = 123828749.66;
a) Linked List 5. int y = x;
b) Stack 6. printf("%d\n", y);
c) Queue 7. printf("%lf\n", y);
d) Tree 8. }
C LANGUAGE:- a) 0, 0.0
49. Which of the above three functions are b) 123828749, 123828749.66
likely to cause problems with pointers? c) 12382874, 12382874.0
(GATE 2001) d) 123828749, 0.000000
(a) Only P3 54. When double is converted to float, then the
(b) Only P1 and P3 value is?
(c) Only P1 and P2 a) Truncated
(d) P1, P2 and P3 b) Rounded
50. The running time of f1(n) and f2(n) are c) Depends on the compiler
(a) Θ(n) and Θ(n) d) Depends on the standard

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55. What will be the output of the following C 60. What will be the output of the following C
code? code?
1. #include <stdio.h> 1. #include <stdio.h>
2. void main() 2. struct point
3. { 3. {
4. int a = 3; 4. int x;
5. int b = ++a + a++ + --a; 5. int y;
6. printf("Value of b is %d", b); 6. };
7. } 7. void foo(struct point*);
a) Value of x is 12 8. int main()
b) Value of x is 13 9. {
c) Value of x is 10 10. struct point p1[] = {1, 2, 3, 4};
d) Undefined behaviour 11. foo(p1);
56. Which of the following is not an arithmetic 12. }
operation? 13. void foo(struct point p[])
a) a * = 10; 14. {
b) a / = 10; 15. printf("%d\n", p[1].x);
c) a ! = 10; 16. }
d) a % = 10; a) Compile time error
57. Which of the following data type will throw b) 3
an error on modulus operation(%)? c) 2
a) char d) 1
b) short 61. What will be the output of the following C
c) int code?
d) float 1. #include <stdio.h>
58. Comment on the output of the following C 2. struct point
code. 3. {
1. #include <stdio.h> 4. int x;
2. int main() 5. int y;
3. { 6. } p[] = {1, 2, 3, 4, 5};
4. char *str = "This" //Line 1 7. void foo(struct point*);
5. char *ptr = "Program\n"; //Line 2 8. int main()
6. str = ptr; //Line 3 9. {
7. printf("%s, %s\n", str, ptr); //Line 10. foo(p);
4 11. }
8. } 12. void foo(struct point p[])
a) Memory holding “this” is cleared at line 13. {
3 14. Printf("%d %d\n", p->x, p[2].y);
b) Memory holding “this” loses its 15. }
reference at line 3 a) 1 0
c) You cannot assign pointer like in Line 3 b) Compile time error
d) Output will be This, Program c) 1 some garbage value
59. Calling a function f with a an array variable d) Undefined behavior.
a[3] where a is an array, is equivalent to 62. Which of the following are themselves a
__________ collection of different data types?
a) f(a[3]) a) string
b) f(*(a + 3)) b) structures
c) f(3[a]) c) char
d) all of the mentioned d) all of the mentioned

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63. Which operator connects the structure 70. If the decimal number is a fraction then its
name to its member name? binary equivalent is obtained by ________ the
a) – number continuously by 2.
b) <- a) Dividing
c) . b) Multiplying
d) Both <- and. c) Adding
DIGITAL ELECTRONICS:- d) Subtracting
71. The decimal equivalent of the binary
64. Conversion of decimal number 6110 to it's number (1011.011)2 is ________
binary number equivalent is a) (11.375)10
a. 1100112 b) (10.123)10
c) (11.175)10
b. 110011102 d) (9.23)10
72. Representation of hexadecimal number
c. 1111012 (6DE)H in decimal:
d. 111112 a) 6 * 162 + 13 * 161 + 14 * 160
b) 6 * 162 + 12 * 161 + 13 * 160
e. None of the above c) 6 * 162 + 11 * 161 + 14 * 160
65. Most demultiplexers facilitate which type d) 6 * 162 + 14 * 161 + 15 * 16
of conversion? C++:-
a) Decimal-to-hexadecimal 73. Which of the following is the correct syntax
b) Single input, multiple outputs of including a user defined header files in
c) AC to DC C++?
d) Odd parity to even parity a) #include <userdefined.h>
66. In 1-to-4 demultiplexer, how many select b) #include <userdefined>
lines are required? c) #include “userdefined”
a) 2 d) #include [userdefined]
b) 3 74. Which of the following is called address
c) 4 operator?
d) 5 a) *
67. How many AND gates are required for a 1- b) &
to-8 multiplexer? c) _
a) 2 d) %
b) 6 75. What are the actual parameters in C++?
c) 8 a) Parameters with which functions are
d) 5 called
68. Which IC is used for the implementation of b) Parameters which are used in the
1-to-16 DEMUX? definition of a function
a) IC 74154 c) Variables other than passed parameters
b) IC 74155 in a function
c) IC 74139 d) Variables that are never used in the
d) IC 74138 function
69. Any signed negative binary number is 76. Which of the following escape sequence
recognized by its ________ represents tab?
a) MSB a) \t
b) LSB b) \t\r
c) Byte c) \b
d) Nibble d) \a

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77. Which of the following is called referenced
insertion/put to operator? d) parsing style information (CSS only)
a) << 84. Firefox uses _________ rendering engine.
b) >> a) WebKit
c) > b) Gecko
d) < c) Trident
IWT:- d) Presto
78. Which attribute specifies a unique 85. What is the use of “defer” attribute?
alphanumeric identifier to be associated a) It defers rendering of html page
with an element? b) It defers script execution until the page
a) class has been rendered
b) id c) It defers rendering of css attributes
c) article d) It is only for internal scripts
d) html 86. Which of the following is used to read a
79. The _____________ attribute specifies an inline HTML page and render it?
style associated with an element, which a) Web browser
determines the rendering of the affected b) Web server
element. c) Web matrix
a) dir d) Web network
b) style 87. HTML stands for?
c) class a)Hyper Text Markup Language
d) article b)High Text Markup Language
80. Which attribute is used to provide an c)Hyper Tabular Markup Language
advisory text about an element or its d)None of these
contents? 88. Which of the following tag is used to mark
a) tooltip a begining of paragraph ?
b) dir a)<TD>
c) title b)<br>
d) head c)<P>
81. The __________ attribute sets the text d)<TR>
direction as related to the lang attribute.
a) lang
b) sub DCN:-
c) dir 89. What is the minimum number of wires
d) ds needed to send data over it serial
82. Which of the following is the attribute that communication link layer?
specifies the column name from the data a) 1
source object that supplies the bound data? b) 2
a) dataFormatAs c) 3
b) datafld d) 4
c) disabled 90. Which data communication method is used
d) datasrc to send data over a serial communication
83. A Rendering engine is not responsible for link?
________ a) simplex.
a) parsing the markup content (HTML) b) half duplex
b) parsing style information (CSS, XSL, and c) full duplex
so on) d) all of these
c) generating a visual presentation of the
formatted content including media files

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91. The interactive transmission of data within d) gear shift
a time sharing system may be best suited 98. Avalanche photodiode receiver can detect
to….. bits of transmitted data by receiving.
a) simplex line a) 1 Photon
b) half duplex lines b) 100 photons
c) full duplex line c) 10 photons
d) bi-flex lines d) 200 photons
92. The area of coverage of a satellite radio 99. Multiple repeaters in communication
beam is called its…. satellites are called.
a) beam width a) detector
b) circular polarization b) modulator
c) footprint c) transponders
d) identity d) stations
93. The amount of uncertainty in a system of 100. how many bits per symbol are used in
the symbol is called. the Baudot code?
a) bandwidth a) 5
b) entropy b) 7
c) loss c) 8
d) quantum d) 9
94. Buffering is….
a) the process of temporarily storing the
data to allow for small variation in device
speeds.
b) a method to reduce cross-talks
c) storage of data within the transmitting
medium until the receiver is ready to
receive
d) a method to reduce the routing
overhead
95. 11 What is the main difference between
synchronous and asynchronous
transmission?
a) band width required is different.
b) pulse height is different.
c) clocking is derived from the data in
synchronous transmission.
d) clocking is mixed with data in
asynchronous transmission.
96. Which section of a synchronous modem
contains the scrambler?
a) Terminal section
b) Receiver section
c) Control section
d) Transmission section
97. The receive equalizer reduces delay
distortions using a…..
a) difference engine
b) tapped delay lines
c) descrambler

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