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National University of Modern Languages50 الأسئلة
Computer Science & Information Technology MCQs
Practice Computer Science & Information Technology multiple-choice questions for National University of Modern Languages competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.
12
15
17
20
الشرحSubstituting x = 4 into the function: 3(4) + 5 = 12 + 5 = 17.
x
2x
x^2
1/2x
الشرحUsing the power rule d/dx(x^n) = nx^(n-1), the derivative of x^2 is 2x^(2-1) = 2x.
5
6
8
9
الشرحThe number of elements in the Cartesian product of two finite sets is the product of their sizes: 3 * 2 = 6.
2
4
8
16
الشرحSince 2 raised to the power of 4 equals 16 (2*2*2*2 = 16), log2(16) is 4.
45 degrees
90 degrees
135 degrees
180 degrees
الشرحThe sum of angles in a triangle is 180 degrees. 180 - (45 + 45) = 90.
5
-3
3
1/5
الشرحThe equation is in slope-intercept form y = mx + c, where m is the slope.
x
x^2
x^9
x^24
الشرحx^2 * x^3 = x^5. Then x^5 / x^4 = x^(5-4) = x.
1/2
1/3
1/6
3/6
الشرحThere is one '3' on a six-sided die, so the probability is 1/6.
x + C
2x^2 + C
x^2 + C
x^2/2 + C
الشرحThe power rule for integration states the integral of nx^(n-1) is x^n.
2
5
10
15
الشرحSubtract 10 from both sides to get 2x = 10, then divide by 2 to get x = 5.
3
5
7
9
الشرحArranging in order {1, 3, 5, 7, 9}, the middle value is 5.
15
20
30
45
الشرح0.15 * 200 = 30.
30 degrees
45 degrees
60 degrees
90 degrees
الشرحThe sine of 30 degrees is 0.5.
15
60
120
240
الشرح5! = 5 × 4 × 3 × 2 × 1 = 120.
14cm
22cm
44cm
154cm
الشرحCircumference = 2 × π × r = 2 × (22/7) × 7 = 44cm.
3
7
9
11
الشرحDivide by 3: x - 4 = 5. Add 4: x = 9.
1
2
3
4
الشرحSlope = (y2 - y1) / (x2 - x1) = (7 - 3) / (4 - 2) = 4 / 2 = 2.
Control Unit
Register
ALU
Cache
الشرحThe Arithmetic Logic Unit (ALU) is the part of the processor that performs mathematical and bitwise operations.
Queue
Stack
Linked List
Array
الشرحA stack is a linear data structure that operates on the LIFO principle, where the last element added is the first one removed.
To compile high-level code
To manage hardware and software resources
To browse the internet
To design databases
الشرحThe OS acts as an intermediary between the hardware and user applications, managing system resources like memory and processor time.
ROM
Hard Drive
RAM
Flash Drive
الشرحRAM (Random Access Memory) requires power to maintain the stored information; it loses data when power is off.
Procedural
Object-Oriented
Functional
Logic-based
الشرحJava is designed around classes and objects, making it a classic object-oriented language.
Structured Query Language
Standard Question Logic
System Query Library
Simple Query Layout
الشرحSQL is the standard language used for managing and manipulating relational databases.
Total Connection Protocol
Transmission Control Protocol
Transfer Computation Port
Traffic Communication Packet
الشرحTCP is a core protocol of the Internet Protocol Suite, responsible for reliable data transmission.
Physical Layer
Data Link Layer
Network Layer
Transport Layer
الشرحThe Network Layer (Layer 3) is responsible for routing data via IP addresses.
Python
Assembly
C++
Java
الشرحAssembly is considered a low-level language as it is very close to machine code.
To debug code line by line
To translate high-level code into machine code
To store data permanently
To manage hardware drivers
الشرحCompilers convert human-readable source code into binary machine code that CPUs understand.
2
8
10
16
الشرحHexadecimal is a base-16 number system using digits 0-9 and letters A-F.
@
&
*
#
الشرحIn C/C++, the asterisk symbol (*) is used to declare and dereference pointer variables.
Motherboard
Hard Disk
Central Processing Unit
Power Supply
الشرحThe CPU performs the majority of the processing and instructions inside the computer.
RAM
Cache
ROM
Registers
الشرحRead-Only Memory (ROM) retains its data even when power is turned off, making it non-volatile.
Storing files
Connecting different networks
Compiling code
Displaying output
الشرحRouters direct data packets between different networks to ensure information reaches its destination.
9
11
13
15
الشرح1*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 8 + 0 + 2 + 1 = 11.
Microsoft Word
Web Browser
Operating System
Photo Editor
الشرحSystem software manages the computer hardware and provides a platform for application software.
PSBOHF
PQBOHF
PSBOIF
PSBOHG
الشرحEach letter is shifted by one position forward in the alphabet (A+1=B, P+1=Q, etc.). Applying this to ORANGE: O+1=P, R+1=S, A+1=B, N+1=O, G+1=H, E+1=F.
36
40
42
44
الشرحThe differences between consecutive numbers are 4, 6, 8, 10. The next difference should be 12. 30 + 12 = 42.
Yes, it is valid
No, it is invalid
It depends on the context
Insufficient information
الشرحThis is a classic syllogism. If the premises are true, the conclusion must follow logically from them.
Rex might bark
Rex barks
All barking animals are dogs
Rex is not a dog
الشرحIf the premise is true that all dogs bark, then any specific dog (Rex) must bark.
30
32
36
49
الشرحThe series represents squares of integers: 1^2, 2^2, 3^2, 4^2, 5^2, 6^2.
Apple
Orange
Broccoli
Banana
الشرحApple, Orange, and Banana are fruits, while Broccoli is a vegetable.
4-15-7
3-14-6
4-16-8
5-15-7
الشرحEach letter corresponds to its position in the alphabet: D=4, O=15, G=7.
A
B
C
Cannot be determined
الشرحSince A > B and B > C, it follows that A > B > C; C is the shortest.
2
8
10
32
الشرحAll numbers except 10 are powers of 2 (2^1, 2^2, 2^3, 2^4, 2^5).
8km
2km
sqrt(34) km
sqrt(16) km
الشرحUsing the Pythagorean theorem: a^2 + b^2 = c^2. 5^2 + 3^2 = 25 + 9 = 34. The distance is sqrt(34).
Wednesday
Thursday
Friday
Saturday
الشرحA week has 7 days. 10 days = 7 days + 3 days. Monday + 3 days = Thursday.
Valid
Invalid
Depends on the species
True
الشرحEven if the premises are true, 'some' birds flying does not mean 'all' birds fly, so the conclusion is not logically forced.
P
Q
O
S
الشرحThe sequence moves backward two letters in the alphabet each time.
M
N
O
P
الشرحThe pattern is skipping an increasing number of letters: +2, +3, +4, +5. J(10) + 5 = O(15).
SUMIC
ISUMC
USMIC
MSIUC
الشرحThe first two letters are swapped, then the rest are reordered. MUSIC follows the pattern U-S-M-I-C.
Sister
Aunt
Mother
Cousin
الشرحThe 'only daughter of my mother' is the woman herself. Therefore, the man's mother is the woman.
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Frequently Asked Questions
Are these Computer Science & Information Technology MCQs free?
Yes. Every Computer Science & Information Technology MCQ on this page is free to practice, including the correct answer and explanation.
Do these include past-paper questions?
Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.
Which exams do these Computer Science & Information Technology MCQs help with?
They are aimed at National University of Modern Languages and related Pakistani competitive exams that test Computer Science & Information Technology.
How should I practice subject-wise MCQs?
Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.