OSI Reference Layers MCQs with answers Page - 8

You will find multiple-choice questions (MCQs) related to #OSI Reference Layers here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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A

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Q. Which of the following is NOT a Physical Layer specification?

  • (A) Connector standards
  • (B) Signal encoding
  • (C) Error detection methods
  • (D) Transmission medium types

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Q. What is the most common form of modulation in radio communication?

  • (A) Amplitude modulation
  • (B) Frequency modulation
  • (C) Phase modulation
  • (D) Pulse modulation

A

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Q. Which of these wireless media is based on line-of-sight communication?

  • (A) Bluetooth
  • (B) Microwave
  • (C) Radio waves
  • (D) Twisted pair

A

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Q. Which of the following refers to the loss of signal strength as it travels?

  • (A) Propagation delay
  • (B) Attenuation
  • (C) Jitter
  • (D) Latency

A

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Q. Which type of transmission mode allows data to be sent and received simultaneously?

  • (A) Simplex
  • (B) Half-duplex
  • (C) Full-duplex
  • (D) Multiplex

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Q. What is the function of a modem in the Physical Layer?

  • (A) Routing data packets
  • (B) Modulating and demodulating signals
  • (C) Switching networks
  • (D) Encrypting data

A

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Q. Which property of the Physical Layer defines how bits are represented on the medium?

  • (A) Bit synchronization
  • (B) Bit representation
  • (C) Signal encoding
  • (D) Voltage regulation

A

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Q. Which of the following does NOT operate at the Physical Layer?

  • (A) Hub
  • (B) Repeater
  • (C) Switch
  • (D) Fiber optic cable

A

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Q. Which frequency band is commonly used in Wi-Fi communication?

  • (A) 900 MHz
  • (B) 1.8 GHz
  • (C) 2.4 GHz
  • (D) 100 MHz

A

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Q. Which device at the Physical Layer is responsible for connecting different network media types?

  • (A) Router
  • (B) Gateway
  • (C) Media Converter
  • (D) Switch
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