Free Networking and Internet MCQs with Answers

452 Networking and Internet MCQs from Computer Science and IT, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.

Networking covers LAN, MAN, WAN and wireless networks, network topologies, transmission media, devices such as switches, routers and modems, and the OSI and TCP/IP models. Internet concepts include IP addresses, DNS, URLs, web browsers, email, protocols such as HTTP, HTTPS, FTP and SMTP, and basic network security.

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452 questions · page 14 of 23

  • A. Microwave
  • B. Fiber Optics
  • C. coaxial
  • D. Twisted pair

Explanation: Microwaves are a form of electromagnetic wave with shorter wavelengths than radio waves.

Correct answer: Microwave
  • A. Digital Signal
  • B. Amplitude
  • C. Parallel Signal

Explanation: Amplitude is the characteristic of:Analog Signal: An analog signal is a continuous signal that represents information by continuously…

Correct answer: Amplitude
  • A. Frequency
  • B. Amplitude
  • C. Oscillation
  • D. Pulse

Explanation: Amplitude is the vertical distance between the rest position (equilibrium position) of a wave and its crest (highest point) or trough…

Correct answer: Amplitude

264. Unicode is a:

  • A. 16-bit Code
  • B. 32-bit Code
  • C. 64-bit Code
  • D. 128-bit Code

Explanation: Unicode is UTF-8 (8-bit Unicode Transformation Format), which can represent a large majority of characters using 1 to 4 bytes (8 to 32…

Correct answer: 64-bit Code
  • A. Simplex
  • B. Half-duplex
  • C. Full-duplex
  • D. Automatic

Explanation: Simplex transmission is a type of communication in which data flows in one direction only.

Correct answer: Simplex
  • A. 2
  • B. 4
  • C. 6
  • D. 8

Explanation: EBCDIC (Extended Binary Coded Decimal Interchange Code) is a character encoding scheme that uses 8 bits to represent a single character.

Correct answer: 8
  • A. Noise
  • B. Refraction
  • C. Interference
  • D. Attenuation

Explanation: In fiber optic communication, attenuation refers to the weakening or loss of signal strength as it travels through the fiber optic cable.

Correct answer: Attenuation
  • A. Full duplex
  • B. Half duplex
  • C. Simplex
  • D. Mid duplex

Explanation: The correct answer is (a) Full duplex. Full-duplex transmission is a type of communication in which data can flow in two directions…

Correct answer: Full duplex
  • A. .Bps
  • B. mbps
  • C. gbps
  • D. kbps

Explanation: The correct answer is (a) bps.Bps (bits per second) is the most basic unit for measuring data transfer rate.

Correct answer: .Bps
  • A. Synchronous transmission
  • B. Asynchronous transmission
  • C. Digital
  • D. Analog

Explanation: Synchronous transmission refers to a method of data transmission where data is sent in blocks, or frames, with a predefined size and…

Correct answer: Synchronous transmission
  • A. Simplex
  • B. Full Duplex
  • C. Half Duplex
  • D. Reverse Duplex

Explanation: Full-duplex transmission is a type of communication in which data can flow in two directions simultaneously.

Correct answer: Full Duplex
  • A. Sender
  • B. Receiver
  • C. Transmission medium
  • D. Protocol

Explanation: A protocol is a set of rules that govern how data is communicated between devices.

Correct answer: Protocol
  • A. 1 second
  • B. 1 minute
  • C. 2 seconds
  • D. 1 hour

Explanation: The average distance between the Earth and the Moon is approximately 384,400 kilometers.

Correct answer: 2 seconds
  • A. Serial Transmission
  • B. Parallel Transmission
  • C. Digital Transmission
  • D. Hybrid Transmission

Explanation: The correct answer is (a) Serial Transmission. Telephone lines have limitations in bandwidth and are prone to noise interference.

Correct answer: Serial Transmission
  • A. Modulation standard
  • B. Speed standard
  • C. Data sending speed
  • D. None of these

Explanation: The correct answer is (a) Modulation standard.Modulation standards specify how data is converted into a format suitable for transmission…

Correct answer: Modulation standard
  • A. Byte
  • B. 1 KB
  • C. 1 MB
  • D. Nibble

Explanation: A nibble is a group of four bits. It can be used to represent hexadecimal digits (0-F) or other digital values that can be expressed with…

Correct answer: Nibble
  • A. UTP (Unshielded Twisted Pair)
  • B. STP (Shielded Twisted Pair)
  • C. Coaxial Cable
  • D. Fiber Optic Cable

Explanation: Coaxial cable is a type of cable that consists of a single solid copper conductor surrounded by an insulating layer, a braided metal…

Correct answer: Coaxial Cable
  • A. Simplex
  • B. Half-duplex
  • C. Full-duplex
  • D. All of these

Explanation: In communication between a CPU and a printer, data flows in one direction at a time.

Correct answer: Half-duplex
  • A. repeater
  • B. Router
  • C. Switch
  • D. Modem

Explanation: A repeater receives a weak signal, amplifies it (strengthens it), and then transmits it onward.

Correct answer: repeater
  • A. Printer
  • B. Keyboard
  • C. Mouse
  • D. Modem

Explanation: Parallel transmission involves sending multiple bits of data simultaneously across multiple wires.

Correct answer: Printer