One Point Solution for All JKSSB Exams

1. Which of the phrases given below should replace the phrase printed in bold type in the sentence "I need not offer any explanation regarding this incident my behavior is speaking itself ." would make it grammatically correct?

will speak to itself

speaks for itself

has been speaking

speaks about itself

English KUET MCA 2022

Correct Answer: D
Explanation

speaks about itself

Correct Answered :

Wrong Answered :

2. The Antonym of the word EXODUS is

Influx

Home coming 30

Return

Restoration

English KUET MCA 2022

Correct Answer: A
Explanation

Exodus means a mass departure of people. So, the opposite of the word will be influx. Influx means arrival or entry of people in large numbers.

Correct Answered :

Wrong Answered :

3. Out of four alternatives, choose the one which can be substituted for the given sentence.
A style in which a writer makes a display of his knowledge.

Pendantic

Verbose

Pompous

Ornate

English KUET MCA 2022

Correct Answer: A
Explanation

Pendantic

Correct Answered :

Wrong Answered :

4. Select the pair which has the same relationship as PAIN : SEDATIVE

Comfort : Stimulant

Grief : Consolation

Trance : Narcotic

Ache : Extraction

English KUET MCA 2022

Correct Answer: B
Explanation

Grief : Consolation

Correct Answered :

Wrong Answered :

5. A, B and C can complete a piece of work in 14, 6 and 12 days respectively. Working together, they will complete the work in.

19/9 days

27 days

28/9 days

25/8 days

Aptitude KUET MCA 2022

Correct Answer: C
Explanation

28/9 days

Correct Answered :

Wrong Answered :

6. The ratio present age of father to that of son is 7 : 2. After 10 years their ages will be in the ratio of 9 : 4. The present age of the father is :

20 years

25 years

30 years

35 years

Aptitude KUET MCA 2022

Correct Answer: D
Explanation

35 years

Correct Answered :

Wrong Answered :

7. A 1200 m long train crosses a tree in 120 sec, how much time will it take to pass a platform 700 m long?

50 sec

80 sec

190 sec

240 sec

Aptitude KUET MCA 2022

Correct Answer: C
Explanation

190 sec

Correct Answered :

Wrong Answered :

8. If MIND becomes KGLB and ARGUE becomes YPESC, then what will DIAGRAM be in that code?

BGYEPYK

BGYPYEK

GLPEYKB

LKBGYPK

Aptitude KUET MCA 2022

Correct Answer: A
Explanation

BGYEPYK

Correct Answered :

Wrong Answered :

9.
If $log \frac{a/}{b} + log \frac{b/}{a} = log (a + b),$ then

a + b = 1

a - b = 1

a = b

a² + b² = 1

Mathematics KUET MCA 2022

Correct Answer: A
Explanation

a + b = 1

Correct Answered :

Wrong Answered :

10. If one root of the quadratic equation 2x² + kx - 6 = 0 is 2, then value of k is:

-1

Mathematics KUET MCA 2022

Correct Answer: B
Explanation

Given: One root of 2x² + kx – 6 = 0 is 2

Then At x = 2, the equation will be satisfied.

2 (2)² + k × 2 – 6 = 0

8 + 2 k – 6 = 0

2 k + 2 = 0

K = –1

So now the equation becomes 2x² + 2x – 6 = 0

For this equation, Product of the roots = (–6/2)

Product of roots = – 3

Let a and b be the roots of the equation and it is given that a = 2

2 × b = –3

B = –3/2

Hence the value of k = –1 and other root is –3/2.

Correct Answered :

Wrong Answered :

11. if a, b, c are in AP then:

b = a + c

2b = a + c

b² = a + c

2b² = a + c

ma KUET MCA 2022

Correct Answer: B
Explanation

When $a, b, c$ are in A.P.,
First term is $t_{1} = a$ Second term $t_{2} = a + d = b$ third term is $t_{3} = a + 2 d = c$ Now $a + c = a + (a + 2 d) = 2 a + 2 d = 2 (a + d) = 2 b$

$\Rightarrow a + c = 2 b$

Correct Answered :

Wrong Answered :

12. If repetition of the digits is allowed, then the number of even natural numbers having three digits is :

250

350

450

550

Mathematics KUET MCA 2022

Correct Answer: C
Explanation

If repetition of the digits is allowed, then the number of even natural numbers having three digits is 450.

Correct Answered :

Wrong Answered :

13. Find the radius and center of a circle given by the equation 2x² + y² - 4x -6y - 12 = 0

Radius = 5, Center = (2, 3)

Radius = 5, Center = (3, 2)

Radius = 1, Center = (2, 3)

Radius = 1, Center = (3, 2)

Mathematics KUET MCA 2022

Correct Answer: A
Explanation

Radius = 5, Center = (2, 3)

Correct Answered :

Wrong Answered :

14. What is the degree of the differential equation

Mathematics KUET MCA 2022

Correct Answer: B
Explanation

Correct Answered :

Wrong Answered :

15. The solution of the differential equation dy = (1 + y²)dx is

y = tanx + c

y = tan(x + c)

tan^-1(y + c) = x

tan^-1(y + c) = 2x

ma KUET MCA 2022

Correct Answer: B
Explanation

y = tan(x + c)

Correct Answered :

Wrong Answered :

16. When the sun`s altitude changes from 30° to 60° the length of the shadow of a tower decreases by 70m. What is the height of the tower?

35 m

140 m

60.6 m

20.2 m

Mathematics KUET MCA 2022

Correct Answer: C
Explanation

When sun`s altitude changes from 30° to 60°, the length of the shadow of a tower decreases by 70 m.

∴ The height of the tower is 60.6 m.

Correct Answered :

Wrong Answered :

17. What will be the probability of getting odd numbers if a dice is thrown?

1/2

4/2

5/2

Mathematics KUET MCA 2022

Correct Answer: A
Explanation

1/2

Correct Answered :

Wrong Answered :

18. A continuous variable has the distribution?

1/4

1/8

1/16

1/2

Mathematics KUET MCA 2022

Correct Answer: C
Explanation

1/16

Correct Answered :

Wrong Answered :

19. Consider a Poisson distribution for the tossing of a biased coin. The mean for this distribution is µ. The standard deviation for this distribution is given by :

√μ

µ²

1/µ

Mathematics KUET MCA 2022

Correct Answer: A
Explanation

Correct Answered :

Wrong Answered :

20. If the distribution is negatively skewed, then the :

Mean is more than mode

Mean is less than mode

Median is at right to the mode

Mean is at right to Median

Statistics KUET MCA 2022

Correct Answer: B
Explanation

If the mean is less than the mode, the distribution is negatively skewed. If the mean is greater than the median, the distribution is positively skewed. If the mean is less than the median, the distribution is negatively skewed.

Correct Answered :

Wrong Answered :

21. Given y = 5e3x+ sinx, dydx is

5e³ˣ + cos x

15e³ˣ + cos x

15e³ˣ - cos x

5e³ˣ + sin x

Mathematics KUET MCA 2022

Correct Answer: B
Explanation

y = 5e^3x + sin(x)
First, to find the derivative, dydx of an exponential function, we use this general form:

ae^nx = a* dydx(nx)e^nx = a*ne^nx

dydx of sin(x) = cos(x)

Applying this to the question we have:

dydx = 5* dydx(3x)e^3x + cos(x)

And,

dydx(3x) = 3

Therefore,

dydx = 15e^3x + cos(x)

Correct Answered :

Wrong Answered :

22. Ratio of volume of a cone to the volume of a cylinder for same base radius and same height is ____.

1/3

1/2

Mathematics KUET MCA 2022

Correct Answer: B
Explanation

1/3

Correct Answered :

Wrong Answered :

23. The basic architecture of a computer system was developed by

John Von Neumann

Charles Babbage

Blaise Pascal

Garden Moore

Computer KUET MCA 2022

Correct Answer: A
Explanation

The von Neumann architecture — also known as the von Neumann model or Princeton architecture — is a computer architecture based on a 1945 description by John von Neumann, and by others, in the First Draft of a Report on the EDVAC.

Correct Answered :

Wrong Answered :

24. Conversion of hexadecimal number (1D7F)₁₆to a decimal number is

7551₁₀

8771₁₀

5557₁₀

7781₁₀

Computer KUET MCA 2022

Correct Answer: A
Explanation

= 1*16³ + 13*16² + 7*16¹ + 15*16⁰
= 4076 + 3328 + 112 + 15
= 7551

Correct Answered :

Wrong Answered :

25. How many bytes does 4 kilobytes represent?

1000

1024

4096

8196

Computer KUET MCA 2022

Correct Answer: C
Explanation

KB to Bytes Conversion Table

Kilobytes (KB)	Bytes (B) decimal	Bytes (B) binary
4 KB	4000 Bytes	4096 Bytes
5 KB	5000 Bytes	5120 Bytes
6 KB	6000 Bytes	6144 Bytes
7 KB	7000 Bytes	7168 Bytes

Correct Answered :

Wrong Answered :

26. Which of the following address is generated by CPU?

Logical address

Physical address

Actual address

Simple address

Computer KUET MCA 2022

Correct Answer: A
Explanation

A logical address is generated by CPU while a program is running. Since a logical address does not physically exists it is also known as a virtual address. This address is used as a reference by the CPU to access the actual physical memory location.

Correct Answered :

Wrong Answered :

27. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of a register?

Absolute mode

Indirect mode

Immediate mode

Index mode

Computer KUET MCA 2022

Correct Answer: D
Explanation

Base indexed mode : The effective address of the operand is generated by adding a constant value to the content of a register.

Correct Answered :

Wrong Answered :

28. Which of the following Boolean rules is correct?

A + 0 = 0

A + 1 = 1

A + A = A.A

A + A.B = A + B

Computer KUET MCA 2022

Correct Answer: D
Explanation

A + A.B = A + B

Correct Answered :

Wrong Answered :

29. The performance of cache memory is frequently measured in terms of a quantity called

Miss ratio

Latency ratio

Read ratio

Hit ratio

Computer KUET MCA 2022

Correct Answer: D
Explanation

The performance of cache memory is frequently measured in terms of a quantity called Hit ratio.

Correct Answered :

Wrong Answered :

30. In C++, which of the following operator cannot be overloaded?

Computer KUET MCA 2022

Correct Answer: C
Explanation

Some operators cannot be overloaded which include sizeof operator, typeid, Scope resolution (::), Class member access operator (.), Ternary or conditional operator (?:). These operators cannot be overloaded because it can cause serious programming issues or errors and also it is syntactically not possible.

Correct Answered :

Wrong Answered :

31. Which of the following is true about virtual functions in C++?

Virtual functions are functions that can be overridden in derived class with the same signature.

Virtual functions enable run-time polymorphism in a inheritance hierarchy.

If a function is virtual in the base class, the most-derived class implementation of the function is called according to the actual type of the object referred to, regardless of the declared type of the pointer or reference. In non-virtual functions, the functions are called according to the type of reference or pointer.

All of these

Computer KUET MCA 2022

Correct Answer: D
Explanation

All of these

Correct Answered :

Wrong Answered :

32. How many types of access specifiers are provided in OPP (C++)?

Computer KUET MCA 2022

Correct Answer: C
Explanation

In C++, there are three access specifiers: public - members are accessible from outside the class. private - members cannot be accessed (or viewed) from outside the class. protected - members cannot be accessed from outside the class, however, they can be accessed in inherited classes.

Correct Answered :

Wrong Answered :

33. What is the base data type of a pointer variable by which the memory would be allocated to it?

Int

Do datatype

Depends upon the type of the variable to which it is pointing

Unsigned int

Computer KUET MCA 2022

Correct Answer: D
Explanation

Unsigned int

Correct Answered :

Wrong Answered :

34. Snapshot of the data in the database at a given instant of time is called.

Database Schema

Database Instance

Database Snapshot

All of the above

Computer KUET MCA 2022

Correct Answer: B
Explanation

Database Instance

Correct Answered :

Wrong Answered :

35. Which of the following data constraints would be used to specify that the value of cells in a column must be one of specific set of possible values?

A domain constraint

A range constraint

An intra relation constraint

An inter relation constraint

Computer KUET MCA 2022

Correct Answer: A
Explanation

A domain constraint

Correct Answered :

Wrong Answered :

36. In Context of database, Let T1 and T2 be two concurrent transactions. Consider the following sequence of operations on data X :
T1 : R(X) T1 : W(X) T2 : R(X) T2 : W(X)
This is called ______Problem

Dirty Read

Lost update

Incorrect summary

Unrepeatable Read

Computer KUET MCA 2022

Correct Answer: A
Explanation

Dirty Read

Correct Answered :

Wrong Answered :

37. Which of the following occurs when one transaction reads a changed record that has not been committed to the database?

Non repeatable read

Phantom read

Dirty read

Consistent read

Computer KUET MCA 2022

Correct Answer: C
Explanation

Dirty Read

Correct Answered :

Wrong Answered :

38. Identify the data structure which allows deletion at both ends of the list but insertion at only one end?

Stack

Priority Queue

Output restricted queue

Input restricted queue

Computer KUET MCA 2022

Correct Answer: D
Explanation

Input restricted queue

Correct Answered :

Wrong Answered :

39. Which of the following is not a linear data structure?

Stack

Graph

List

None of these

Computer KUET MCA 2022

Correct Answer: B
Explanation

Graph

Correct Answered :

Wrong Answered :

40. Merge sort uses which of the following technique to implement sorting?

Backtracking

Greedy Algorithm

Divide and Conquer

Dynamic Programming

Computer KUET MCA 2022

Correct Answer: C
Explanation

Divide and Conquer

Correct Answered :

Wrong Answered :

41. A complete binary tree with the property that the value at each node is at least as large as the values at its children is called

Binary Search Tree

Binary Tree

Completely Balanced Tree

Heap

Computer KUET MCA 2022

Correct Answer: D
Explanation

In a Max. Binary Heap, the key value at each node is as least as large as the values at its children. Similarly in Min Binary Heap, the key at root must be minimum among all keys present in Binary Heap.

Correct Answered :

Wrong Answered :

42. To access the services of the operating system, the interface is provided by the ____.

Library

System calls

Assembly instructions

API

Computer KUET MCA 2022

Correct Answer: B
Explanation

To access services of the Operating System an interface is provided by the System Calls.

Correct Answered :

Wrong Answered :

43. In a multi threaded environment ____.

Each thread is allocated with new memory from main memory

Main thread terminates after the termination of child threads

Every process can have only one thread

None of the above

com KUET MCA 2022

Correct Answer: B
Explanation

Main thread terminates after the termination of child threads

Correct Answered :

Wrong Answered :

44. Switching the CPU to another Process requires to save state of the old process and loading new process state is called as ____.

Process Blocking

Context Switch

Time Sharing

None of above

Computer KUET MCA 2022

Correct Answer: B
Explanation

Context Switch

Correct Answered :

Wrong Answered :

45. The operating system and the other processes are protected from being modified by an already running process because ____.

They are in different memory spaces.

They are in different logical addresses

They have a protection algorithm

Every address generated by the CPU is being checked against the relocation and limit registers.

Computer KUET MCA 2022

Correct Answer: D
Explanation

Every address generated by the CPU is being checked against the relocation and limit registers.

Correct Answered :

Wrong Answered :

46. What is the worst case time complexity of a quick sort algorithm?

O(n)

O(nlogn)

O(n²)

O(logn)

Computer KUET MCA 2022

Correct Answer: C
Explanation

O(n²)

Correct Answered :

Wrong Answered :

47. The following paradigm can be used to find the solution of the problem in the minimum time:
Given a set of non negative integers, and a value K, determine if there is a subset of the given set with sum equal to K?

Divide and Conquer

Dynamic Programming

Greedy Algorithm

Brand and Bound

Computer KUET MCA 2022

Correct Answer: B
Explanation

“Subset sum problem”: Given a set of non-negative integers, and a value sum, determine if there is a subset of the given set with sum equal to given sum(K). Dynamic Programming paradigm can be used to find the solution of the problem in minimum time.

Correct Answered :

Wrong Answered :

48. Which of the following is useful in traversing a given graph by breadth first search?

Set

List

Stack

Queue

com KUET MCA 2022

Correct Answer: D
Explanation

BFS performs level-order traversal which can be fairly done using a queue.

Correct Answered :

Wrong Answered :

49. Best case time complexity of binary search algorithm is

O(N)

O(LOGN)

O(NLOGN)

O(N²)

Computer KUET MCA 2022

Correct Answer: B
Explanation

The time complexity of the binary search algorithm is O(log n). The best-case time complexity would be O(1) when the central index would directly match the desired value. Binary search worst case differs from that. The worst-case scenario could be the values at either extremity of the list or values not in the list.

Correct Answered :

Wrong Answered :

50. According to Chomsky classification, language of finite automata is :

Type 0

Type 1

Type 2

Type 3

Computer KUET MCA 2022

Correct Answer: D
Explanation

Type 3 grammars are generated by regular languages. These languages are exactly all those languages that can be accepted by finite state automata. Type 3 is the most restricted grammar.

Correct Answered :

Wrong Answered :

51. How many DFA`s exits with two states over input alphabet {0, 1}

Computer KUET MCA 2022

Correct Answer: D
Explanation

Number of DFA’s = 2ⁿ * n^(2*n).

Correct Answered :

Wrong Answered :

52. Which of the following statement is false?

Context free language is the subset of context sensitive language

Regular language is the subset of context sensitive language

Recursively enumerable language is the super set of regular language

Context sensitive language is a subset of context free language

Computer KUET MCA 2022

Correct Answer: D
Explanation

Context sensitive language is a subset of context free language

Correct Answered :

Wrong Answered :

53. Which of the following can accept even palindrome over {a,b}

Push down Automata

Turing machine

NDFA

All of the mentioned

Computer KUET MCA 2022

Correct Answer: C
Explanation

NDFA

Correct Answered :

Wrong Answered :

54. The required resources for communication between end systems are reserved for the duration of the session between end systems in _____ method.

Packet switching

Circuit switching

Line switching

Frequency switching

Computer KUET MCA 2022

Correct Answer: B
Explanation

In circuit-switched networks, the resources needed along a path (buffers, link bandwidth) to provide for communication between the end systems are reserved for the duration of the session.

Correct Answered :

Wrong Answered :

55. The device bridge is used at ____ layer of OSI reference model.

Datalink

Network

Transport

Application

Computer KUET MCA 2022

Correct Answer: A
Explanation

Bridge works at Data link layer.

Correct Answered :

Wrong Answered :

56. In ____, the chances of collision can be reduced if a station senses the medium before trying to use it.

CSMA

FDMA

CDMA

Computer KUET MCA 2022

Correct Answer: B
Explanation

CSMA

Correct Answered :

Wrong Answered :

57. Which of the following is not a function of network layer?

routing

inter networking

congestion control

error control

Computer KUET MCA 2022

Correct Answer: D
Explanation

in the osi model, network layer is the third layer and it provides data routing paths for network communications. error control is a function of the data link layer and the transport layer.

Correct Answered :

Wrong Answered :

KUET MCA 2022 Examination MCQs with solutions

1. Which of the phrases given below should replace the phrase printed in bold type in the sentence "I need not offer any explanation regarding this incident my behavior is speaking itself ." would make it grammatically correct?

2. The Antonym of the word EXODUS is

3. Out of four alternatives, choose the one which can be substituted for the given sentence.A style in which a writer makes a display of his knowledge.

4. Select the pair which has the same relationship as PAIN : SEDATIVE

5. A, B and C can complete a piece of work in 14, 6 and 12 days respectively. Working together, they will complete the work in.

6. The ratio present age of father to that of son is 7 : 2. After 10 years their ages will be in the ratio of 9 : 4. The present age of the father is :

7. A 1200 m long train crosses a tree in 120 sec, how much time will it take to pass a platform 700 m long?

8. If MIND becomes KGLB and ARGUE becomes YPESC, then what will DIAGRAM be in that code?

9. If loga/b + logb/a=log(a+b), then

If loga/b + logb/a=log(a+b), then

10. If one root of the quadratic equation 2x² + kx - 6 = 0 is 2, then value of k is:

11. if a, b, c are in AP then:

When a,b,c are in A.P.,First term is t1​=aSecond term t2​=a+d=bthird term is t3​=a+2d=cNow a+c=a+(a+2d)=2a+2d=2(a+d)=2b

⇒a+c=2b

12. If repetition of the digits is allowed, then the number of even natural numbers having three digits is :

13. Find the radius and center of a circle given by the equation 2x² + y² - 4x -6y - 12 = 0

Radius = 5, Center = (2, 3)

14. What is the degree of the differential equation

15. The solution of the differential equation dy = (1 + y²)dx is

16. When the sun`s altitude changes from 30° to 60° the length of the shadow of a tower decreases by 70m. What is the height of the tower?

17. What will be the probability of getting odd numbers if a dice is thrown?

18. A continuous variable has the distribution?

19. Consider a Poisson distribution for the tossing of a biased coin. The mean for this distribution is µ. The standard deviation for this distribution is given by :

20. If the distribution is negatively skewed, then the :

21. Given y = 5e3x+ sinx, dydx is

22. Ratio of volume of a cone to the volume of a cylinder for same base radius and same height is ____.

23. The basic architecture of a computer system was developed by

24. Conversion of hexadecimal number (1D7F)16 to a decimal number is

25. How many bytes does 4 kilobytes represent?

26. Which of the following address is generated by CPU?

27. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of a register?

28. Which of the following Boolean rules is correct?

29. The performance of cache memory is frequently measured in terms of a quantity called

30. In C++, which of the following operator cannot be overloaded?

31. Which of the following is true about virtual functions in C++?

32. How many types of access specifiers are provided in OPP (C++)?

33. What is the base data type of a pointer variable by which the memory would be allocated to it?

34. Snapshot of the data in the database at a given instant of time is called.

35. Which of the following data constraints would be used to specify that the value of cells in a column must be one of specific set of possible values?

36. In Context of database, Let T1 and T2 be two concurrent transactions. Consider the following sequence of operations on data X :T1 : R(X) T1 : W(X) T2 : R(X) T2 : W(X)This is called ______Problem

37. Which of the following occurs when one transaction reads a changed record that has not been committed to the database?

38. Identify the data structure which allows deletion at both ends of the list but insertion at only one end?

39. Which of the following is not a linear data structure?

40. Merge sort uses which of the following technique to implement sorting?

41. A complete binary tree with the property that the value at each node is at least as large as the values at its children is called

42. To access the services of the operating system, the interface is provided by the ____.

43. In a multi threaded environment ____.

44. Switching the CPU to another Process requires to save state of the old process and loading new process state is called as ____.

45. The operating system and the other processes are protected from being modified by an already running process because ____.

46. What is the worst case time complexity of a quick sort algorithm?

47. The following paradigm can be used to find the solution of the problem in the minimum time:Given a set of non negative integers, and a value K, determine if there is a subset of the given set with sum equal to K?

48. Which of the following is useful in traversing a given graph by breadth first search?

49. Best case time complexity of binary search algorithm is

50. According to Chomsky classification, language of finite automata is :

51. How many DFA`s exits with two states over input alphabet {0, 1}

52. Which of the following statement is false?

53. Which of the following can accept even palindrome over {a,b}

54. The required resources for communication between end systems are reserved for the duration of the session between end systems in _____ method.

55. The device bridge is used at ____ layer of OSI reference model.

56. In ____, the chances of collision can be reduced if a station senses the medium before trying to use it.

57. Which of the following is not a function of network layer?

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3. Out of four alternatives, choose the one which can be substituted for the given sentence.
A style in which a writer makes a display of his knowledge.

9.
If $log \frac{a/}{b} + log \frac{b/}{a} = log (a + b),$ then

If $log \frac{a/}{b} + log \frac{b/}{a} = log (a + b),$ then

When $a, b, c$ are in A.P.,
First term is $t_{1} = a$ Second term $t_{2} = a + d = b$ third term is $t_{3} = a + 2 d = c$ Now $a + c = a + (a + 2 d) = 2 a + 2 d = 2 (a + d) = 2 b$

$\Rightarrow a + c = 2 b$

24. Conversion of hexadecimal number (1D7F)₁₆to a decimal number is

36. In Context of database, Let T1 and T2 be two concurrent transactions. Consider the following sequence of operations on data X :
T1 : R(X) T1 : W(X) T2 : R(X) T2 : W(X)
This is called ______Problem

47. The following paradigm can be used to find the solution of the problem in the minimum time:
Given a set of non negative integers, and a value K, determine if there is a subset of the given set with sum equal to K?