Most Important Repeated Computer Science MCQS
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=(Important Computer Science (30) MCQS)=
1. A program written in machine language is called.........program.
A. object (✓✓✓✓)
B. assembler
C. computer
D. high level
2. Which of the following is not a programming paradigm.?
A. Object-Oriented Programming (OOP)
B. Functional Programming (FP)
C. Logical Programming (LP)
D. Structural Programming (SP) (✓✓✓✓)
3. Hard disk in a computer is a/an____?
A. Output Device
B. Processor
C. Software
D. Storage Device (✓✓✓✓)
4. The smallest unit of data in a computer is:
A. Bit (✓✓✓✓)
B. Kilobit
C. Terabyte
D. Byte
5. "Digital Computer" was invented by:
A. Howard Aiken (✓✓✓✓)
B. Vannevor Bush
C. John Harrison
D. M.R. Bissel
6. All the files deleted from the computer are stored in the:
A. Recycle Bin (✓✓✓✓)
B. My Computer
C. Internet Explorer
D. My Network Places
7. A normal CD-ROM can usually store upto______data?
A. 680 GB
B. 680 KB
C. 680 Bytes
D 680 MB (✓✓✓✓)
8. Hard copy of document is:
A. Save copy
B. Scanned copy
C. Print out (✓✓✓✓)
D. Display copy
9. Internet is_______?
A. Display System
B. Network of Networks (✓✓✓✓)
C. Scanning Technology
D. Search Engine
10. WWW stands for______?
A. Wrestling & Wildlife Web
B. World Wrestling Web
C World Wildlife Web
D. Worldwide Web (✓✓✓✓)
11. The process of putting data into a storage location is called.?
A. reading
B. controlling
C. writing (✓✓✓✓)
D. hand shaking
12.______is done to protect data and
passwords.?
A. Verification
B. Authentication
C. Encryption (✓✓✓✓)
D. Authorization
13. Which sorting algorithm has the worst-case time complexity of O(n^2)?
A. Quick Sort
B. Merge Sort
C. Bubble Sort (✓✓✓✓)
D. Insertion Sort
14. Portrait and Landscape are.?
A. Page Orientation (✓✓✓✓)
B. Paper Size
C. Page Layout
D. All of above
15. What does SQL stand for in the context of databases.?
A. Structured Query Language (✓✓✓✓)
B. System Query Language
C. Simple Query Language
D. Sequential Query Language
16. Borders can be applied to.?
A. Cells
B. Text
C. Paragraph
D. All of above (✓✓✓✓)
17. Ctrl+L Shortcut is used in Microsoft Word to.?
A. Left Align (✓✓✓✓)
B. Left Indent
C. Increase Left Margin
D. Decrease Left Margin
18. What is the function of CTRL+O in Microsoft Word?
A. Save Document
B. Print Document
C. Close Document
D. Open Document (✓✓✓✓)
19. What is the function of CTRL+N in Microsoft Word.?
A. Save Document
B. Open Document
C. New Document (✓✓✓✓)
D. Close Document
20. Ctrl+M Shortcut is used in Microsoft Word to.?
A. New Document
B. Close Document
C. Right Indent
D. Left Indent (✓✓✓✓)
21. Which option use to open recent file?
A. Ctrl+R
B. Ctrl+F
C. Ctrl+O (✓✓✓✓)
D. Ctrl+N
22. Text-styling feature of MS word is?
A. Word Color
B. Word Font
C. Word Art (✓✓✓✓)
D. Word Fill
23. In object-oriented programming, what is encapsulation?
A. The process of converting code into machine language
B. The process of hiding the implementation details of an object and exposing only the necessary features (✓✓✓✓)
C. The process of optimizing code for better performance
D. The process of debugging code
24. The process of copying data from a memory location is called.?
A. reading (✓✓✓✓)
B. controlling
C. writing
D. booting
25. What does CPU stand for.?
A. Central Processing Unit (✓✓✓✓)
B. Computer Personal Unit
C. Central Process Unit
D. Central Program Unit
26. Which programming language is often used for web development.?
A. Java
B. Python
C. HTML (✓✓✓✓)
D. C++
27. Which data structure follows the Last-In-First-Out (LIFO) principle.?
A. Queue
B. Stack (✓✓✓)
C. Linked List
D. Tree
28. What is the binary representation of the decimal number 25.?
A. 11001
B. 11101
C. 10010 (✓✓✓✓)
D. 11000
29. What does HTML stand for?
A. Hyperlink Text Markup Language
B. High-Level Text Markup Language
C. Hypertext Transfer Protocol Language
D. Hypertext Markup Language (✓✓✓✓)
30. Which protocol is used for sending and receiving emails?
A. HTTP
B. SMTP (✓✓✓✓)
C. FTP
D. TCP/IP
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