Virtual Labs

a: Because a router deletes some packets b: Due to variable routing paths taken by packets c: Because sequence numbers are removed d: Because routers only support circuit switching

a: To reduce packet size b: To ensure proper reassembly at the receiver c: To reduce network congestion d: To avoid routing decisions

a: Datagram packet switching b: Virtual circuit packet switching c: Circuit switching d: Mixed switching

a: The entire message is discarded b: The network stops transmission c: The lost packet is retransmitted d: The sender must resend the entire file manually

a: It wastes bandwidth because of fixed path allocation b: It uses network resources only when needed c: It is slower than circuit switching in all cases d: It cannot support large networks

Implementation of Packet Switching: Setup, Transmission, and Teardown.