801. What is the binary representation of decimal number 20?
✅ A. 10100
a: 10100 | b: 14 | c: 10011 | d: 10101 Read more
Computer Science MCQs – Page 41
802. What is the binary representation of decimal number 19?
✅ C. 10011
a: 13 | b: 10100 | c: 10011 | d: 10010 Read more
803. What is the binary representation of decimal number 18?
✅ D. 10010
a: 10011 | b: 12 | c: 10001 | d: 10010 Read more
804. What is the binary representation of decimal number 17?
✅ A. 10001
a: 10001 | b: 10000 | c: 11 | d: 10010 Read more
805. What is the binary representation of decimal number 16?
✅ A. 10000
a: 10000 | b: 10001 | c: 1111 | d: 10 Read more
806. What is the binary representation of decimal number 15?
✅ B. 1111
a: f | b: 1111 | c: 1110 | d: 10000 Read more
807. What is the binary representation of decimal number 14?
✅ D. 1110
a: 1111 | b: e | c: 1101 | d: 1110 Read more
808. What is the binary representation of decimal number 13?
✅ C. 1101
a: d | b: 1110 | c: 1101 | d: 1100 Read more
809. What is the binary representation of decimal number 12?
✅ A. 1100
a: 1100 | b: 1011 | c: 1101 | d: c Read more
810. What is the binary representation of decimal number 11?
✅ A. 1011
a: 1011 | b: 1100 | c: b | d: 1010 Read more
811. What is the binary representation of decimal number 10?
✅ B. 1010
a: 1011 | b: 1010 | c: 1001 | d: a Read more
812. Which technology allows nearby devices to exchange data wirelessly over short distances?
✅ B. Bluetooth
a: SATA | b: Bluetooth | c: HDMI | d: VGA Read more
813. What does SQL commonly help users do?
✅ B. Query and manage relational databases
a: Design computer chips | b: Query and manage relational databases | c: Edit sound waves | d: Control screen resolution Read more
814. Which of these is a web browser?
✅ B. Mozilla Firefox
a: MySQL | b: Mozilla Firefox | c: Linux kernel | d: Python interpreter Read more
815. What is a firewall designed to do?
✅ D. Filter network traffic according to rules
a: Edit photos | b: Increase screen brightness | c: Print documents faster | d: Filter network traffic according to rules Read more
816. Which component stores data for quick access while programs run?
✅ A. RAM
a: RAM | b: Keyboard buffer only | c: Monitor panel | d: Printer toner Read more
817. What does DNS translate domain names into?
✅ C. IP addresses
a: Spreadsheet formulas | b: Audio frequencies | c: IP addresses | d: Image pixels Read more
818. What does HTML primarily define?
✅ C. The structure of web pages
a: Electrical voltage | b: Database passwords | c: The structure of web pages | d: Network cable length Read more
819. Which is an example of an open-source operating system?
✅ C. Linux
a: Microsoft Excel | b: Adobe Photoshop | c: Linux | d: PowerPoint Read more
820. Which storage device has no moving mechanical parts?
✅ B. Solid-state drive (SSD)
a: Magnetic tape reel | b: Solid-state drive (SSD) | c: Floppy disk drive | d: Mechanical hard disk Read more