Switching technology allows parallel transmission, so N-port switch can transfer up to N/2 packets simultaneously. What is maximum number of simultaneous packets that can be transferred by an 128-port switch?

64 packets

Explanation:

N-port switch transfers a maximum of N/2 packets simultaneously.

We are given a 128-port switch.

A 128-port, therefore, should transfer maximum 128/2 packets simultaneously.

N/2 = 128/2 = 64 packets.

Hence, at most 64 packets can be transferred simultaneously by a 128-port switch.