Multiple choice technology architecture

Flow control takes place at which layer?

  1. physical

  2. transport

  3. network

  4. MAC sublayer of the data link layer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Flow control occurs at the transport layer (Layer 4), where mechanisms like TCP's sliding window prevent a fast sender from overwhelming a slow receiver. This ensures reliable data delivery. While the MAC sublayer has some flow control (e.g., Ethernet pause frames), the primary flow control is at the transport layer.

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