3.4-11 Packet buffering in Go-Back-N. What are some reasons for discarding received-but-out-of-sequence packets at the receiver in GBN? Indicate one or more of the following statements that are correct. The sender will resend that packet in any case. If some packets are in error, then its likely that other packets are in error as well. The implementation at the receiver is simpler. Discarding an out of sequence packet will really force the sender to retransmit.

How different are cryptography private keys from their corresponding public keys, and to what degree is this difference important?

What is it about authentication that causes so much worry in the modern world?

What is the difference between a prime number and a composite number? How is the Euclidean algorithm used in finding the greatest common divisor of two numbers? What is a prime number, and how are they used in cryptography? What is the difference between symmetric and asymmetric cryptography?