41. What is the main purpose of an operating system?
✅ C. To manage hardware and software resources
a: To increase monitor size | b: To create electricity | c: To manage hardware and software resources | d: To replace all applications Read more
Computer Science MCQs – Page 3
42. Which file extension is commonly associated with a PDF document?
✅ D. .pdf
a: .exe | b: .mp3 | c: .xlsx | d: .pdf Read more
43. Which protocol is commonly used to load secure websites?
✅ B. HTTPS
a: Telnet only | b: HTTPS | c: SMTP | d: FTP only Read more
44. What does URL stand for?
✅ B. Uniform Resource Locator
a: Universal Record Link | b: Uniform Resource Locator | c: User Reference List | d: Unified Routing Language Read more
45. Which type of memory is volatile?
✅ A. RAM
a: RAM | b: Blu-ray disc | c: SSD when unpowered | d: ROM Read more
46. Which component performs arithmetic and logical operations in a CPU?
✅ C. Arithmetic Logic Unit (ALU)
a: Hard drive | b: Power supply | c: Arithmetic Logic Unit (ALU) | d: Control unit Read more
47. What is the binary representation of decimal number 192?
✅ D. 11000000
a: c0 | b: 11000001 | c: 10111111 | d: 11000000 Read more
48. What is the binary representation of decimal number 231?
✅ D. 11100111
a: 11101000 | b: 11100110 | c: e7 | d: 11100111 Read more
49. What is the binary representation of decimal number 230?
✅ A. 11100110
a: 11100110 | b: 11100101 | c: e6 | d: 11100111 Read more
50. What is the binary representation of decimal number 231?
51. What is the binary representation of decimal number 229?
✅ C. 11100101
a: 11100110 | b: e5 | c: 11100101 | d: 11100100 Read more
52. What is the binary representation of decimal number 230?
✅ A. 11100110
a: 11100110 | b: 11100101 | c: e6 | d: 11100111 Read more
53. What is the binary representation of decimal number 228?
✅ A. 11100100
a: 11100100 | b: e4 | c: 11100011 | d: 11100101 Read more
54. What is the binary representation of decimal number 229?
✅ C. 11100101
a: 11100110 | b: e5 | c: 11100101 | d: 11100100 Read more
55. What is the binary representation of decimal number 227?
✅ A. 11100011
a: 11100011 | b: 11100010 | c: 11100100 | d: e3 Read more
56. What is the binary representation of decimal number 228?
✅ A. 11100100
a: 11100100 | b: e4 | c: 11100011 | d: 11100101 Read more
57. What is the binary representation of decimal number 226?
✅ A. 11100010
a: 11100010 | b: 11100011 | c: e2 | d: 11100001 Read more
58. What is the binary representation of decimal number 227?
✅ A. 11100011
a: 11100011 | b: 11100010 | c: 11100100 | d: e3 Read more
59. What is the binary representation of decimal number 225?
✅ C. 11100001
a: 11100000 | b: 11100010 | c: 11100001 | d: e1 Read more
60. What is the binary representation of decimal number 226?
✅ A. 11100010
a: 11100010 | b: 11100011 | c: e2 | d: 11100001 Read more