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OSI Model MCQs

Practice OSI Model MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Computer & Networking BasicsOSI Model

Which OSI layer is responsible for logical addressing and routing?

  • ANetwork layer
  • BData Link layer
  • CPresentation layer
  • DPhysical layer
Report an error
Correct Answer: A. Network layer
Explanation: The Network layer provides logical addressing and routing functions between networks.
Reference: Standard computer and networking fundamentals: osi model
Question 2
Computer & Networking BasicsOSI Model

Which OSI layer provides process-to-process transport services and commonly includes reliability and flow-control functions?

  • ATransport layer
  • BPhysical layer
  • CPresentation layer
  • DData Link layer
Report an error
Correct Answer: A. Transport layer
Explanation: The Transport layer provides end-to-end process communication; protocols such as TCP can add reliability and flow control.
Reference: Standard computer and networking fundamentals: osi model
Question 3
Computer & Networking BasicsOSI Model

Which OSI layer is closest to end-user network applications?

  • AApplication layer
  • BPhysical layer
  • CData Link layer
  • DNetwork layer
Report an error
Correct Answer: A. Application layer
Explanation: Layer 7, the Application layer, provides network services directly used by application processes.
Reference: Standard computer and networking fundamentals: osi model
Question 5
Computer & Networking BasicsOSI Model

Which is the lowest layer of the OSI model?

  • APhysical layer
  • BTransport layer
  • CSession layer
  • DApplication layer
Report an error
Correct Answer: A. Physical layer
Explanation: The Physical layer is Layer 1 and deals with transmission of raw bits over the physical medium.
Reference: Standard computer and networking fundamentals: osi model