Exam 1

Question 1

rwnd

Answer 1

TCP Flow Control - receiver advertises free buffer space by including rwnd value in receiver-to-sender TCP header. Sender limits amount of unACKed data to rwnd value. Guarantees receive buffer will not overflow.

Question 2

AIMD

Answer 2

Sender increases transmission rate (window size) until loss occurs

Question 3

Network layer key functions

Answer 3

Forwarding and routing