Information Technology (IT) MCQs - Computer Practice | PakExamPoint
Practise Information Technology (IT) MCQs in Computer. Attempt multiple-choice questions, check answers and revise related subtopics.
Information Technology (IT) MCQs and revision practice
Study Information Technology (IT) through multiple-choice questions in Computer. This subtopic contains 2241 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Information Technology (IT) MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
مرج سورٹ الگورتھم کی مجموعی ٹائم کمپلیکسٹی کیا ہے؟
A. None of these
B. O²(n log n)
C. O(n log n²)
D. O(n log n)
Check answer and explanation
Answer: O(n log n)
Explanation Merge Sort is a divide and conquer algorithm that splits the array into halves, sorts them recursively, and merges them . Each level of recursion processes n elements, and there are log₂n levels , giving O(n log n) time complexity . It is stable and works well for large datasets. Worst, average, and best case all have O(n log n) complexity. Last verified on 24-03-2026
مندرجہ ذیل میں سے کس کو سسٹم سافٹ ویئر نہیں سمجھا جاتا ہے؟
A. Compiler and Device drivers
B. Assembler and MS Windows
C. Interpreter
D. Tally and MS Office
Check answer and explanation
Answer: Tally and MS Office
Explanation Tally (accounting software) and MS Office are application software, designed for user-specific tasks , not a system software. System software includes: Assembler : Translates assembly language into machine code. Compiler : Translates high-level language into machine code. Interpreter : Directly executes high-level language code without compiling.
Explanation Packet filtering: A network layer firewall or packet-filtering firewall works at the network layer of the Open Systems Interconnection (OSI) model
سی++ میں ایک انٹیجر کو میموری میں کتنے بٹس لیے جاتے ہیں؟
A. 32 bits
B. 24 bits
C. 16 bits
D. None of these
Check answer and explanation
Answer: 32 bits
Explanation Data Type: int in C++ Memory Size: Usually 32 bits (4 bytes) on most modern systems Additional information : Can store values approximately from - 2,147,483,648 to 2,147,483,647 (signed int) Size may vary depending on compiler and system architecture (older systems used 16 bits) Last verified on 08-02-2026
Explanation Marcian Edward "Ted" Hoff Jr. is one of the inventors of the microprocessor. In 1980 , Hoff was named the first Intel Fellow, which is the highest technical position in the company. He stayed in that position until 1983 when he left for Atari.
ورڈ دستاویزات کے لیے پہلے سے طے شدہ صفحہ کا سائز دفتر میں بھی استعمال ہوتا ہے۔
A. A4
B. Letter
C. None
D. Legal
Check answer and explanation
Answer: A4
Explanation A4 paper size is 210 x 297 mm ************* Standard International Paper Sizes and Measurements Normally, the default format would be “letter” which is the standard size for a page (8.27” x 11.69” / 21 x 29.7cm). A4 size is easy to work with and print since it fits into any printer or copier. Sh4-9-2023
Explanation A record is complete information about a database. The database is Consist of many different files linked with each other for the retrieval of information .
Answer: If n = 0 return, 1 else return F(n - 1) * n
Explanation Factorial is defined as: n! = n × (n - 1)! for n ≥ 1, and 0! = 1 . Recursive algorithm: if n = 0 return 1 else return F(n - 1) * n To compute F(n) - F(n - 1), first calculate F(n) recursively using this formula , then subtract F(n - 1). Last verified on 24-03-2026
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