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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
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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
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