While investigating a slow application, you observe TCP window size zero messages in Wireshark. At what layer of the OSI model does this flow control issue reside?
Answers
ANetwork
BSession
CApplication
DTransport
Correct answer: D — Transport
Objective 1.1: The Transport layer (Layer 4) handles TCP flow control, including windowing. Application is Layer 7, Session Layer 5, Network Layer 3.
MIFOTRA exam practicealigned to CompTIA Network+ N10-009·3 marks·Medium