SOLVED PAPER OF HIGHER SECONDARY SCHOOL TEACHER-COMPUTER SCIENCE-KERALA HIGHER SECONDARY EDUCATION –EXAM HELD ON 01.02.2018.
1. #define AND &&
#define OR !!
#define LE <=
#define GE >=
main()
{
char ch=‘D’ :
if ((ch GE 65 AND ch LE 90) OR (ch GE 97 AND ch LE 122))
printf(“alphabet”);
else
printf(“not an alphabets”):
}
(A) Compilation error (B) Not an alphabet
(C) Alphabet (D) None of the above
Ans: (C) Alphabet
2. main()
{
static char * s[] = {“ice”, “green”, “core”, “please”}:
static char **ptr[] = {s+3, s+2, s+1,s}:
char ***p=ptr;
printf(“%s\n”, **++p);
printf(“%s\n”, *--*++p+3);
printf(“%s\n”, *p[–2]+3);
printf(“%s\n”,p[–1][–1]+1);
}
(A) ice (B) core (C) please (D) None
plea ase core
gr reen gr
Ans:(B).
3. main()
{
int k=35,z;
K=func1(k=func1(k=func1(k)));
printf(“k=%d”,k);
}
Funct1(k)
int k:
{
K++;
return(k):
}
(A) 35 (B) 37 (C) 38 (D) 40
Ans: (C)38
4. main ()
{
int j=1;
while (j<=255);
printf(“%c%d\n”, j,j);
j++;
}
}
(A) 255 (B) 255, 255 (C) No output (D) 256
Ans: (C)No output.
5. main()
{
int a=500, b=100,c;
if (!a>=400)
b=300;
c=200;
printf(“b=%d c=%d”,b,c);
}
(A) b=100, c=400 (B) b=100, c=300
(C) b=100, c=200 (D) None of the above
Ans: (C)
6. Multiple inheritance in java can be achieved by :
(A) interface (B) polymorphism (C) abstraction (D) encapsulation
Ans: (A)
7. Which is the base class of all classes in java ?
(A) system.lang (B) class.object (C) java.lang.object (D) none of the above
Ans: (C).
8. class output
{
public static void main (string args[ ])
{ string Buffer sb=new string Buffer (“Hello”);
Sb.delete (0,2);
system.out.println(c);
}
(A) He (B) Hel (C) lo (D) llo
Ans: (D).
9. Which of the interface contain all the method used for handling thread related operations in
java ?
(A) Runnable interface (B) Math interface
(C) System interface (D) Thread handling interface
Ans: (D)
10. Which of the package contains abstract keyword ?
(A) java.lang (B) java.util (C) java.io (D) java.system
Ans: (A)
11. A member function which initializes data member of an object in :
(A) Destructor (B) Constructor (C) Inline function (D) Friend function
Ans: (B).
12. A C++ key word, which, when used inside a member function of a class, represents a pointer
to the particular class object that invoked it :
(A) * (B) this (C) ? (D) None
Ans: (B).
13. Which of the following is a non linear data structure ?
(A) Tree (B) Array
(C) Linked list (D) None of the above
Ans: (A).
14. Which of the following is NOT a method for performing amortized analysis of algorithms ?
(A) Aggregate method (B) Accounting method
(C) Potential method (D) None of the above
Ans: (D).
15. 0-1 Knapsack problem can be solved by :
(A) Greedy method (B) Dynamic programming method
(C) Divide and conquer method (D) None of the above
Ans: (B).
16. Which is NOT a collision resolution technique in Hashing ?
(A) Chaining (B) Linear probing
(C) Quadratic Probing (D) None of the above
Ans: (D).
17. If any NP complete problem is in P class, then :
(A) P=NP (B) P!=NP
(C) P=NP (D) None of the above
Ans: (A).
18. Which of the following problem is NOT NP-complete ?
(A) Hamiltonian cycle problem (B) Clique problem
(C) Travelling-salesman problem (D) None of the above
Ans: (D).
19. The running time of Kruska’ls algorithm for a graph G=(V, E) for finding
Minimum–spanning–tree is :
(A) O(E log2 V) (B) O(E+V log2 V)
(C) O(E2) (D) O(V2)
Ans: (A).
20. The data structure used in breadth–first–search (BST) is :
(A) Stack (B) Queue
(C) B–Tree (D) None of the above
Ans: (B).
21. Strassen’s algorithm for multiplying n×n matrices runs in :
(A) O(n2) time (B) O(n3) time (C) O(2n) time (D) O(n2.81) time
Ans: (D).
22. The postfix representation of the expression (a+b*c)+((d*e+f)*g) is :
(A) abc*+de*f+g*+ (B) ab+c*de*f+g+*
(C) ab+c*de*f+g*+ (D) abc*+def*+g*+
Ans: (A)
23. The worst case time complexity of merge sort is :
(A) O(n2) (B) O(n log n) (C) O(n3) (D) O(2n)
Ans: (B).
24. A set of n>=0 disjoint trees :
(A) Tree (B) Forest (C) B Tree (D) All of the above
Ans: (B).
25. Which of the following is a linear data structures ?
(A) Array (B) Linked list
(C) Both (A) and (B) (D) None of the above
Ans: (C).
26. The worst case time complexity of Quick sort is :
(A) O(n2) (B) O(n log n) (C) O(n3) (D) O(2n)
Ans: (A).
27. Which of the following data structure is frequently used to implement priority queue ?
(A) Stack (B) Heap
(C) Treap (D) None of the above
Ans: (B).
28. A list in which contain nodes of different types :
(A) Homogenous list (B) Heterogeneous list
(C) Doubly linked list (D) None of the above
Ans: (B).
29. An ordered list in which insertion and deletion of nodes are made at one end ?
(A) Deque (B) Queue
(C) Stack (D) None of the above
Ans: (C).
30. A matrix whose most of the elements are zeroes :
(A) sparse matrix (B) dense matrix
(C) square matrix (D) none of the above
Ans: (A).
31. Which of the following is a self balancing binary search tree ?
(A) B– Tree (B) AVL Tree
(C) B+ Tree (D) None of the above
Ans: (B).
32. A network with bandwidth of 10 Mbps can pass only an average of 12000 frames per minute
with each frame carrying an average of 10,000 bits. What is the throughput of this
network ?
(A) 22 Mbps (B) 2 Mbps (C) 10 Mbps (D) 100 Mbps
Ans: (B)
33. A system is using NRZ-l to transfer 10-Mbps data. What is the average signal rate ?
(A) 500 Kbaud (B) 1000 MHz (C) 500 MHz (D) 1000 Kbaud
Ans: (A).
34. What is the minimum required bandwidth to send data at 1-Mbps rate using Manchester
Encoding ?
(A) 10 MHz (B) 2 MHz (C) 5 MHz (D) 1 MHz
Ans: (D)
35. To send 3 bits data at a time at a bit rate of 3 Mbps with a carrier frequency of 10 MHz
calculate the baud rate and bandwidth :
(A) 10 Mbaud and 10 MHz (B) 2 Mbaud and 2 MHz
(C) 1 Mbaud and 8 MHz (D) None of these
Ans: (C).
36. Eight channels each with a 100-kHz bandwidth are to be multiplexed together. What is the
minimum bandwidth of the link if there is a need for a guard band of 10 kHz between
channels to prevent interference ?
(A) 540 kHz (B) 870 kHz (C) 1020 kHz (D) 1080 kHz
Ans: (B)
37. The digital multiplexing technique for combining several low-rate channels into high-rate
one :
(A) TDM (B) FDM (C) CDM (D) none of these
Ans: (A)
38. RG-59 category cables are used for :
(A) Telephone (B) LAN
(C) Cable TV networks (D) None of these
Ans: (C).
39. The bit oriented protocol for communication over point to point and multipoint links is :
(A) HDLC (B) Stop and wait protocol
(C) PPP (D) PAP
Ans: (A).
40. The service not provided by PPP is :
(A) network address configuration (B) authentication
(C) flow control (D) none of these
Ans: (C).
41. Encryption is done at :
(A) Presentation Layer (B) Application Layer
(C) Session Layer (D) Transport Layer
Ans: (A).
42. One channel carries all transmissions simultaneously in :
(A) TDMA (B) CDMA (C) FDMA (D) PDMA
Ans: (B).
43. The IEEE standard for Wifi is :
(A) 802.4 (B) 802.1 (C) 802.2 (D) 802.11
Ans: D.
44. An example for cell switched network is :
(A) SONET (B) ATM (C) UPSR (D) None of these
Ans: (B).
45. GSM is a digital cellular phone system using :
(A) TDMA and packet switching (B) CDMA and packet switching
(C) TDMA and FDMA (D) FDMA and CDMA
Ans: (C).
46. UDP is a :
(A) Connectionless unreliable protocol
(B) Reliable and connection oriented protocol
(C) Connectionless reliable protocol
(D) Connection oriented unreliable protocol
Ans: (A).
47. SCTP is a __________ layer protocol.
(A) Session Layer (B) Application Layer
(C) DLL (D) Transport Layer
Ans: (D).
48. The result which operation contains all pairs of tuples from the two relations, regardless of
whether their attribute values match ?
(A) Join (B) Cartesian product
(C) Intersection (D) Set difference
Ans: (B).
49. The most commonly used operation in relational algebra for projecting a set of tuple from a
relation is :
(A) Join (B) Projection (C) Select (D) Union
Ans: (C).
50. For each attribute of a relation, there is a set of permitted values, called the __________ of
that attribute.
(A) Domain (B) Relation (C) Set (D) Schema
Ans: (A).
51. Managers salary details are hidden from employees. This is :
(A) Conceptual level data hiding (B) Physical level data hiding
(C) External level data hiding (D) None of these
Ans: (C).
52. In SR flip-flop, if S=R=1 then Q(t+1) will be :
(A) Q(t) (B) 0
(C) 1 (D) indeterminate state
Ans: (D).
53. If an encoder has 2n (or less) input lines. Then output line is :
(A) n/2 (B) n (C) 2n (D) n-1
Ans: (B).
54. The 10’s complements of 13250 is :
(A) 86740 (B) 86750 (C) 97850 (D) 97859
Ans: (B).
55. DeMorgan’s theorem says that a NOR gate is equivalent to __________ gate.
(A) Bubbled XOR (B) Bubbled AND (C) NOR (D) Bubbled NOR
Ans: (B).
56. AB+B((B+C')+B'C) can be simplified to :
(A) AB+BC (B) B+BC
(C) B+C (D) None of the above
Ans: (C).
57. The self complementing unweighted code is :
(A) 8421 (B) 2421 (C) Excess 3 (D) Gray code
Ans: (B).
58. In 8086 microprocessor the following has the highest priority among all the type of
interrupt :
(A) NM 1 (B) type 255 (C) over flow (D) Div 0
Ans: (A).
59. Which among the following is the maximum mod signal in 8085 ?
(A) DT/R' (B) HOLD (C) ALE (D) LOCK
Ans: (D).
60. INT2 in 8086 is :
(A) Single step interrupt (B) Non maskable interrupt
(C) Division by zero interrupt (D) Overflow interrupt
Ans: (B).
61. Which among the following is the programmable DMA controller in 8086 ?
(A) 8259 (B) 8257 (C) 8251 (D) 8250
Ans: (D).
62. In cyclomatic complexity, if E is the number of edges and N is the number of nodes, V(G), for
a flow graph is defined as :
(A) E-N+2 (B) E-N-1 (C) E+N-2 (D) E+N-1
Ans: (A).
63. Which among the following is the risk driven process model ?
(A) Prototyping (B) Spiral model
(C) Component based development (D) Waterfall model
Ans: (B).
64. Which testing method is normally used as the acceptance test for a software system ?
(A) Unit testing (B) Integration testing
(C) Functional testing (D) Regression testing
Ans: (B).
65. Application like Banking and Reservation require which type of operating system :
(A) Hard real time (B) Soft real time
(C) Real time (D) Time sharing
Ans: (B).
66. Preemptive scheduling is the strategy of temporally suspending a running process :
(A) To avoid collision (B) When it request i/o
(C) Before the CPU time slice expires (D) None of the above
Ans: (C).
67. Time for the disk, rotate to the start of the desired sector is known as :
(A) Seek time (B) Transfer time (C) Latency time (D) Access time
Ans: (C).
68. Mutual exclusion problem occurs between :
(A) Process that share resources
(B) Process use not the same resources
(C) Two disjoint process that do not interact
(D) None of the above
Ans: (A).
69. PNG stands for :
(A) Packet network graphics (B) Portable network graphics
(C) Protocol for network graphic (D) None of the above
Ans: (B)
70. The maintenance activity to find and fix error during operation of error is :
(A) adaptive maintenance (B) corrective maintenance
(C) perfective maintenance (D) preventive maintenance
Ans: (B).
71. Which method uses small increments with minimum planning and iterations are short time
frames ?
(A) Water fall model (B) Spiral model
(C) Agile model (D) Prototype model
Ans:(B).
72. Telnet is a :
(A) Remote login (B) Television network
(C) Network of telephone (D) None of the above
Ans: (A).
73. Trends to outsource IT functions t other countries is known as :
(A) Outer outsourcing (B) External outsourcing
(C) Foreign outsourcing (D) Offshore outsourcing
Ans: (D).
74. Which of the following method of channelization are used for mobile data internet
working ?
(A) Time division multiple access (B) Frequency division multiple access
(C) Code division multiple access (D) All of the above
Ans: (D).
75. Honey pot is an example for :
(A) Security auditing software (B) Encryption-decryption software
(C) Intrusion-detection software (D) Virus
Ans: (C).
76. ‘Hibernate’ in Windows XP/Windows 7 means :
(A) Shutdown the computer without closing the running application
(B) Shutdown the computer terminating all running applications
(C) Restart the computer
(D) Restart the computer in safe mode
Ans: (A).
77. The UNIX Shell is :
(A) A command line interpreter (B) Set of user commands
(C) A GUI interface (D) All of the above
Ans: (A).
78. If every non key attribute is functionally depend on primary key, then the relation will be :
(A) First normal form (B) Second normal form
(C) Third normal form (D) Fourth normal form
Ans: (C).
79. An attribute of one table is matching the primary key of another table, is known as :
(A) Secondary key (B) Foreign key
(C) Candidate key (D) Composite key
Ans: (B).
80. In relational model, tuple is equivalent to :
(A) Record (B) Table (C) File (D) Field
Ans: (A).
81. Who among the following leaders is not associated with the formation of the Congress Socialist
Party in 1934 ?
(A) Sardar Vallabhai Patel (B) Jayaprakash Narayanan
(C) Achyuth Patwardhan (D) R.M. Lohya
Ans: (A).
82. The code name “Operation Barbarosa” is associated with the following countries in the Second
World War :
(A) England and France (B) France and Germany
(C) Germany and Soviet Union (D) U.S.A. and Japan
Ans: (C).
83. Who among the following is the author of “Prince of the folly” ?
(A) Erasmus (B) Machiavelly (C) Thomas More (D) Boccassio
Ans: (A).
84. Which of the following social reformer of Kerala founded the “Sadhu Jana Sangam” ?
(A) Mannath Padmanabhan (B) Vagbhatanantha
(C) Ayyankali (D) Pandit Karuppan
Ans: (C).
85. Which National leader of India is nicknamed as “Prince of workers” ?
(A) Dadabhai Naoroji (B) Gopalakrishna Gokhale
(C) Bal Gangadhara Tilak (D) Surendra Natha Bannarjee
Ans: (B).
86. “New India” is the Newspaper published by :
(A) Mahatma Gandhi (B) Annie Beasant
(C) Syed Ahammed Khan (D) Lala Lajpath Rai
Ans: (B).
87. The Indian Independence Act Passed by the British Parliament in :
(A) August 14, 1947 (B) July 1, 1947
(C) February 12, 1947 (D) July 18, 1947
Ans: (D).
88. Which social reformer of Kerala started the weekly “Prabhodakam” ?
(A) Mannath Padmanabhan (B) Muhammed Abdul Rahman
(C) Kesari Balakrishna Pillai (D) Swadeshabhimani Ramakrishna Pillai
Ans: (C).
89. Which of the following state of India is called the “Botanist paradise” ?
(A) Assam (B) Kashmir
(C) Sikkim (D) Arunachal Pradesh
Ans: (C).
90. Who among the following ruler built the famous “Charminar” ?
(A) Firus Shah Tuglak (B) Shahjahan
(C) Aurangazeb (D) Quli Qutub Shah
Ans: (D).
91. Which among the following is India’s National river ?
(A) Indus (B) Ganga (C) Brahmaputhra (D) Narmada
Ans: (B).
92. Swaraj Party was the outcome of which of the following incident ?
(A) Chauri-Chaura (B) Quit India
(C) Simon Commision (D) Bardoli Satyagraha
Ans: (A).
93. Who is called the “Lincoln of Kerala” ?
(A) Pandit Karuppan (B) Dr. Palpu
(C) Sahodharan Ayyappan (D) Poikayil Yohannan
Ans: (A).
94. In the constitution of India article 32 deals with :
(A) Writ (B) Equal pay for equal work
(C) Panchayath raj system (D) Uniform civil code
Ans: (A).
95. “Panmana Asramam” is related to :
(A) Kumarasenan (B) Chattambi Swamikal
(C) Vagbadanandhan (D) Vaikunda Swamikal
Ans: (B).
96. Who among the following is the President of Karachi Session of INC in 1931 ?
(A) Sardar Vallabhai Patel (B) Mothilal Nehru
(C) Jawaharlal Nehru (D) Annie Besant
Ans: (A).
97. Which among the following year the famous Malayalam historical novel “Martandavarma”
published ?
(A) 1901 (B) 1906 (C) 1891 (D) 1896
Ans: (C).
98. In which of the following year last Mamankam was held at Thirunavaya ?
(A) 1775 (B) 1780 (C) 1792 (D) 1802
Ans: (A).
99. Which ruler of Cochin started “Thrissur Pooram” ?
(A) Swathi Thirunal (B) Marthanda Varma
(C) Sakthan Thampuran (D) Sree Chithira Thiruna
Ans: (C).
100. Who among the following raised the slogan “Inquilab Zindabad” for the first time ?
(A) Surya Sen (B) Bhagat Singh
(C) V.D. Savarkar (D) Chandrasekhar Azad
Ans: (B).
1. #define AND &&
#define OR !!
#define LE <=
#define GE >=
main()
{
char ch=‘D’ :
if ((ch GE 65 AND ch LE 90) OR (ch GE 97 AND ch LE 122))
printf(“alphabet”);
else
printf(“not an alphabets”):
}
(A) Compilation error (B) Not an alphabet
(C) Alphabet (D) None of the above
Ans: (C) Alphabet
2. main()
{
static char * s[] = {“ice”, “green”, “core”, “please”}:
static char **ptr[] = {s+3, s+2, s+1,s}:
char ***p=ptr;
printf(“%s\n”, **++p);
printf(“%s\n”, *--*++p+3);
printf(“%s\n”, *p[–2]+3);
printf(“%s\n”,p[–1][–1]+1);
}
(A) ice (B) core (C) please (D) None
plea ase core
gr reen gr
Ans:(B).
3. main()
{
int k=35,z;
K=func1(k=func1(k=func1(k)));
printf(“k=%d”,k);
}
Funct1(k)
int k:
{
K++;
return(k):
}
(A) 35 (B) 37 (C) 38 (D) 40
Ans: (C)38
4. main ()
{
int j=1;
while (j<=255);
printf(“%c%d\n”, j,j);
j++;
}
}
(A) 255 (B) 255, 255 (C) No output (D) 256
Ans: (C)No output.
5. main()
{
int a=500, b=100,c;
if (!a>=400)
b=300;
c=200;
printf(“b=%d c=%d”,b,c);
}
(A) b=100, c=400 (B) b=100, c=300
(C) b=100, c=200 (D) None of the above
Ans: (C)
6. Multiple inheritance in java can be achieved by :
(A) interface (B) polymorphism (C) abstraction (D) encapsulation
Ans: (A)
7. Which is the base class of all classes in java ?
(A) system.lang (B) class.object (C) java.lang.object (D) none of the above
Ans: (C).
8. class output
{
public static void main (string args[ ])
{ string Buffer sb=new string Buffer (“Hello”);
Sb.delete (0,2);
system.out.println(c);
}
(A) He (B) Hel (C) lo (D) llo
Ans: (D).
9. Which of the interface contain all the method used for handling thread related operations in
java ?
(A) Runnable interface (B) Math interface
(C) System interface (D) Thread handling interface
Ans: (D)
10. Which of the package contains abstract keyword ?
(A) java.lang (B) java.util (C) java.io (D) java.system
Ans: (A)
11. A member function which initializes data member of an object in :
(A) Destructor (B) Constructor (C) Inline function (D) Friend function
Ans: (B).
12. A C++ key word, which, when used inside a member function of a class, represents a pointer
to the particular class object that invoked it :
(A) * (B) this (C) ? (D) None
Ans: (B).
13. Which of the following is a non linear data structure ?
(A) Tree (B) Array
(C) Linked list (D) None of the above
Ans: (A).
14. Which of the following is NOT a method for performing amortized analysis of algorithms ?
(A) Aggregate method (B) Accounting method
(C) Potential method (D) None of the above
Ans: (D).
15. 0-1 Knapsack problem can be solved by :
(A) Greedy method (B) Dynamic programming method
(C) Divide and conquer method (D) None of the above
Ans: (B).
16. Which is NOT a collision resolution technique in Hashing ?
(A) Chaining (B) Linear probing
(C) Quadratic Probing (D) None of the above
Ans: (D).
17. If any NP complete problem is in P class, then :
(A) P=NP (B) P!=NP
(C) P=NP (D) None of the above
Ans: (A).
18. Which of the following problem is NOT NP-complete ?
(A) Hamiltonian cycle problem (B) Clique problem
(C) Travelling-salesman problem (D) None of the above
Ans: (D).
19. The running time of Kruska’ls algorithm for a graph G=(V, E) for finding
Minimum–spanning–tree is :
(A) O(E log2 V) (B) O(E+V log2 V)
(C) O(E2) (D) O(V2)
Ans: (A).
20. The data structure used in breadth–first–search (BST) is :
(A) Stack (B) Queue
(C) B–Tree (D) None of the above
Ans: (B).
21. Strassen’s algorithm for multiplying n×n matrices runs in :
(A) O(n2) time (B) O(n3) time (C) O(2n) time (D) O(n2.81) time
Ans: (D).
22. The postfix representation of the expression (a+b*c)+((d*e+f)*g) is :
(A) abc*+de*f+g*+ (B) ab+c*de*f+g+*
(C) ab+c*de*f+g*+ (D) abc*+def*+g*+
Ans: (A)
23. The worst case time complexity of merge sort is :
(A) O(n2) (B) O(n log n) (C) O(n3) (D) O(2n)
Ans: (B).
24. A set of n>=0 disjoint trees :
(A) Tree (B) Forest (C) B Tree (D) All of the above
Ans: (B).
25. Which of the following is a linear data structures ?
(A) Array (B) Linked list
(C) Both (A) and (B) (D) None of the above
Ans: (C).
26. The worst case time complexity of Quick sort is :
(A) O(n2) (B) O(n log n) (C) O(n3) (D) O(2n)
Ans: (A).
27. Which of the following data structure is frequently used to implement priority queue ?
(A) Stack (B) Heap
(C) Treap (D) None of the above
Ans: (B).
28. A list in which contain nodes of different types :
(A) Homogenous list (B) Heterogeneous list
(C) Doubly linked list (D) None of the above
Ans: (B).
29. An ordered list in which insertion and deletion of nodes are made at one end ?
(A) Deque (B) Queue
(C) Stack (D) None of the above
Ans: (C).
30. A matrix whose most of the elements are zeroes :
(A) sparse matrix (B) dense matrix
(C) square matrix (D) none of the above
Ans: (A).
31. Which of the following is a self balancing binary search tree ?
(A) B– Tree (B) AVL Tree
(C) B+ Tree (D) None of the above
Ans: (B).
32. A network with bandwidth of 10 Mbps can pass only an average of 12000 frames per minute
with each frame carrying an average of 10,000 bits. What is the throughput of this
network ?
(A) 22 Mbps (B) 2 Mbps (C) 10 Mbps (D) 100 Mbps
Ans: (B)
33. A system is using NRZ-l to transfer 10-Mbps data. What is the average signal rate ?
(A) 500 Kbaud (B) 1000 MHz (C) 500 MHz (D) 1000 Kbaud
Ans: (A).
34. What is the minimum required bandwidth to send data at 1-Mbps rate using Manchester
Encoding ?
(A) 10 MHz (B) 2 MHz (C) 5 MHz (D) 1 MHz
Ans: (D)
35. To send 3 bits data at a time at a bit rate of 3 Mbps with a carrier frequency of 10 MHz
calculate the baud rate and bandwidth :
(A) 10 Mbaud and 10 MHz (B) 2 Mbaud and 2 MHz
(C) 1 Mbaud and 8 MHz (D) None of these
Ans: (C).
36. Eight channels each with a 100-kHz bandwidth are to be multiplexed together. What is the
minimum bandwidth of the link if there is a need for a guard band of 10 kHz between
channels to prevent interference ?
(A) 540 kHz (B) 870 kHz (C) 1020 kHz (D) 1080 kHz
Ans: (B)
37. The digital multiplexing technique for combining several low-rate channels into high-rate
one :
(A) TDM (B) FDM (C) CDM (D) none of these
Ans: (A)
38. RG-59 category cables are used for :
(A) Telephone (B) LAN
(C) Cable TV networks (D) None of these
Ans: (C).
39. The bit oriented protocol for communication over point to point and multipoint links is :
(A) HDLC (B) Stop and wait protocol
(C) PPP (D) PAP
Ans: (A).
40. The service not provided by PPP is :
(A) network address configuration (B) authentication
(C) flow control (D) none of these
Ans: (C).
41. Encryption is done at :
(A) Presentation Layer (B) Application Layer
(C) Session Layer (D) Transport Layer
Ans: (A).
42. One channel carries all transmissions simultaneously in :
(A) TDMA (B) CDMA (C) FDMA (D) PDMA
Ans: (B).
43. The IEEE standard for Wifi is :
(A) 802.4 (B) 802.1 (C) 802.2 (D) 802.11
Ans: D.
44. An example for cell switched network is :
(A) SONET (B) ATM (C) UPSR (D) None of these
Ans: (B).
45. GSM is a digital cellular phone system using :
(A) TDMA and packet switching (B) CDMA and packet switching
(C) TDMA and FDMA (D) FDMA and CDMA
Ans: (C).
46. UDP is a :
(A) Connectionless unreliable protocol
(B) Reliable and connection oriented protocol
(C) Connectionless reliable protocol
(D) Connection oriented unreliable protocol
Ans: (A).
47. SCTP is a __________ layer protocol.
(A) Session Layer (B) Application Layer
(C) DLL (D) Transport Layer
Ans: (D).
48. The result which operation contains all pairs of tuples from the two relations, regardless of
whether their attribute values match ?
(A) Join (B) Cartesian product
(C) Intersection (D) Set difference
Ans: (B).
49. The most commonly used operation in relational algebra for projecting a set of tuple from a
relation is :
(A) Join (B) Projection (C) Select (D) Union
Ans: (C).
50. For each attribute of a relation, there is a set of permitted values, called the __________ of
that attribute.
(A) Domain (B) Relation (C) Set (D) Schema
Ans: (A).
51. Managers salary details are hidden from employees. This is :
(A) Conceptual level data hiding (B) Physical level data hiding
(C) External level data hiding (D) None of these
Ans: (C).
52. In SR flip-flop, if S=R=1 then Q(t+1) will be :
(A) Q(t) (B) 0
(C) 1 (D) indeterminate state
Ans: (D).
53. If an encoder has 2n (or less) input lines. Then output line is :
(A) n/2 (B) n (C) 2n (D) n-1
Ans: (B).
54. The 10’s complements of 13250 is :
(A) 86740 (B) 86750 (C) 97850 (D) 97859
Ans: (B).
55. DeMorgan’s theorem says that a NOR gate is equivalent to __________ gate.
(A) Bubbled XOR (B) Bubbled AND (C) NOR (D) Bubbled NOR
Ans: (B).
56. AB+B((B+C')+B'C) can be simplified to :
(A) AB+BC (B) B+BC
(C) B+C (D) None of the above
Ans: (C).
57. The self complementing unweighted code is :
(A) 8421 (B) 2421 (C) Excess 3 (D) Gray code
Ans: (B).
58. In 8086 microprocessor the following has the highest priority among all the type of
interrupt :
(A) NM 1 (B) type 255 (C) over flow (D) Div 0
Ans: (A).
59. Which among the following is the maximum mod signal in 8085 ?
(A) DT/R' (B) HOLD (C) ALE (D) LOCK
Ans: (D).
60. INT2 in 8086 is :
(A) Single step interrupt (B) Non maskable interrupt
(C) Division by zero interrupt (D) Overflow interrupt
Ans: (B).
61. Which among the following is the programmable DMA controller in 8086 ?
(A) 8259 (B) 8257 (C) 8251 (D) 8250
Ans: (D).
62. In cyclomatic complexity, if E is the number of edges and N is the number of nodes, V(G), for
a flow graph is defined as :
(A) E-N+2 (B) E-N-1 (C) E+N-2 (D) E+N-1
Ans: (A).
63. Which among the following is the risk driven process model ?
(A) Prototyping (B) Spiral model
(C) Component based development (D) Waterfall model
Ans: (B).
64. Which testing method is normally used as the acceptance test for a software system ?
(A) Unit testing (B) Integration testing
(C) Functional testing (D) Regression testing
Ans: (B).
65. Application like Banking and Reservation require which type of operating system :
(A) Hard real time (B) Soft real time
(C) Real time (D) Time sharing
Ans: (B).
66. Preemptive scheduling is the strategy of temporally suspending a running process :
(A) To avoid collision (B) When it request i/o
(C) Before the CPU time slice expires (D) None of the above
Ans: (C).
67. Time for the disk, rotate to the start of the desired sector is known as :
(A) Seek time (B) Transfer time (C) Latency time (D) Access time
Ans: (C).
68. Mutual exclusion problem occurs between :
(A) Process that share resources
(B) Process use not the same resources
(C) Two disjoint process that do not interact
(D) None of the above
Ans: (A).
69. PNG stands for :
(A) Packet network graphics (B) Portable network graphics
(C) Protocol for network graphic (D) None of the above
Ans: (B)
70. The maintenance activity to find and fix error during operation of error is :
(A) adaptive maintenance (B) corrective maintenance
(C) perfective maintenance (D) preventive maintenance
Ans: (B).
71. Which method uses small increments with minimum planning and iterations are short time
frames ?
(A) Water fall model (B) Spiral model
(C) Agile model (D) Prototype model
Ans:(B).
72. Telnet is a :
(A) Remote login (B) Television network
(C) Network of telephone (D) None of the above
Ans: (A).
73. Trends to outsource IT functions t other countries is known as :
(A) Outer outsourcing (B) External outsourcing
(C) Foreign outsourcing (D) Offshore outsourcing
Ans: (D).
74. Which of the following method of channelization are used for mobile data internet
working ?
(A) Time division multiple access (B) Frequency division multiple access
(C) Code division multiple access (D) All of the above
Ans: (D).
75. Honey pot is an example for :
(A) Security auditing software (B) Encryption-decryption software
(C) Intrusion-detection software (D) Virus
Ans: (C).
76. ‘Hibernate’ in Windows XP/Windows 7 means :
(A) Shutdown the computer without closing the running application
(B) Shutdown the computer terminating all running applications
(C) Restart the computer
(D) Restart the computer in safe mode
Ans: (A).
77. The UNIX Shell is :
(A) A command line interpreter (B) Set of user commands
(C) A GUI interface (D) All of the above
Ans: (A).
78. If every non key attribute is functionally depend on primary key, then the relation will be :
(A) First normal form (B) Second normal form
(C) Third normal form (D) Fourth normal form
Ans: (C).
79. An attribute of one table is matching the primary key of another table, is known as :
(A) Secondary key (B) Foreign key
(C) Candidate key (D) Composite key
Ans: (B).
80. In relational model, tuple is equivalent to :
(A) Record (B) Table (C) File (D) Field
Ans: (A).
81. Who among the following leaders is not associated with the formation of the Congress Socialist
Party in 1934 ?
(A) Sardar Vallabhai Patel (B) Jayaprakash Narayanan
(C) Achyuth Patwardhan (D) R.M. Lohya
Ans: (A).
82. The code name “Operation Barbarosa” is associated with the following countries in the Second
World War :
(A) England and France (B) France and Germany
(C) Germany and Soviet Union (D) U.S.A. and Japan
Ans: (C).
83. Who among the following is the author of “Prince of the folly” ?
(A) Erasmus (B) Machiavelly (C) Thomas More (D) Boccassio
Ans: (A).
84. Which of the following social reformer of Kerala founded the “Sadhu Jana Sangam” ?
(A) Mannath Padmanabhan (B) Vagbhatanantha
(C) Ayyankali (D) Pandit Karuppan
Ans: (C).
85. Which National leader of India is nicknamed as “Prince of workers” ?
(A) Dadabhai Naoroji (B) Gopalakrishna Gokhale
(C) Bal Gangadhara Tilak (D) Surendra Natha Bannarjee
Ans: (B).
86. “New India” is the Newspaper published by :
(A) Mahatma Gandhi (B) Annie Beasant
(C) Syed Ahammed Khan (D) Lala Lajpath Rai
Ans: (B).
87. The Indian Independence Act Passed by the British Parliament in :
(A) August 14, 1947 (B) July 1, 1947
(C) February 12, 1947 (D) July 18, 1947
Ans: (D).
88. Which social reformer of Kerala started the weekly “Prabhodakam” ?
(A) Mannath Padmanabhan (B) Muhammed Abdul Rahman
(C) Kesari Balakrishna Pillai (D) Swadeshabhimani Ramakrishna Pillai
Ans: (C).
89. Which of the following state of India is called the “Botanist paradise” ?
(A) Assam (B) Kashmir
(C) Sikkim (D) Arunachal Pradesh
Ans: (C).
90. Who among the following ruler built the famous “Charminar” ?
(A) Firus Shah Tuglak (B) Shahjahan
(C) Aurangazeb (D) Quli Qutub Shah
Ans: (D).
91. Which among the following is India’s National river ?
(A) Indus (B) Ganga (C) Brahmaputhra (D) Narmada
Ans: (B).
92. Swaraj Party was the outcome of which of the following incident ?
(A) Chauri-Chaura (B) Quit India
(C) Simon Commision (D) Bardoli Satyagraha
Ans: (A).
93. Who is called the “Lincoln of Kerala” ?
(A) Pandit Karuppan (B) Dr. Palpu
(C) Sahodharan Ayyappan (D) Poikayil Yohannan
Ans: (A).
94. In the constitution of India article 32 deals with :
(A) Writ (B) Equal pay for equal work
(C) Panchayath raj system (D) Uniform civil code
Ans: (A).
95. “Panmana Asramam” is related to :
(A) Kumarasenan (B) Chattambi Swamikal
(C) Vagbadanandhan (D) Vaikunda Swamikal
Ans: (B).
96. Who among the following is the President of Karachi Session of INC in 1931 ?
(A) Sardar Vallabhai Patel (B) Mothilal Nehru
(C) Jawaharlal Nehru (D) Annie Besant
Ans: (A).
97. Which among the following year the famous Malayalam historical novel “Martandavarma”
published ?
(A) 1901 (B) 1906 (C) 1891 (D) 1896
Ans: (C).
98. In which of the following year last Mamankam was held at Thirunavaya ?
(A) 1775 (B) 1780 (C) 1792 (D) 1802
Ans: (A).
99. Which ruler of Cochin started “Thrissur Pooram” ?
(A) Swathi Thirunal (B) Marthanda Varma
(C) Sakthan Thampuran (D) Sree Chithira Thiruna
Ans: (C).
100. Who among the following raised the slogan “Inquilab Zindabad” for the first time ?
(A) Surya Sen (B) Bhagat Singh
(C) V.D. Savarkar (D) Chandrasekhar Azad
Ans: (B).