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5. Which of these is NOT an input device?
Choose the correct option:

  • a) Keyboard

  • b) Mouse

  • c) Printer

  • d) Scanner

A printer is an output device, as it produces a physical copy of digital data.

6. What does 'ALU' stand for in a CPU?
Choose the correct option:

  • a) Arithmetic Logic Unit

  • b) Advanced Level Unit

  • c) Algorithmic Logical Utility

  • d) Array List Unit

The ALU performs arithmetic and logical operations within the CPU.

25. A computer's BIOS is typically stored in:
Choose the correct option:

  • a) RAM

  • b) ROM

  • c) Hard Disk

  • d) Flash Drive

BIOS (Basic Input/Output System) is traditionally stored in ROM on the motherboard.

37. In Boolean algebra, the output of an AND gate is 1 only if:
Choose the correct option:

  • a) One input is 1

  • b) Both inputs are 1

  • c) At least one input is 0

  • d) Both inputs are 0

The AND gate outputs 1 when all its inputs are 1.

64. The primary difference between TCP and UDP is that TCP:
Choose the correct option:

  • a) Is connectionless while UDP is connection-oriented

  • b) Uses connection-oriented communication while UDP is connectionless

  • c) Is used only for voice calls, while UDP is for data

  • d) Is always faster than UDP

TCP (Transmission Control Protocol) establishes a reliable connection, whereas UDP (User Datagram Protocol) is connectionless.

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