In a virtual-circuit approach, the forwarding decision is based on the value of the _____________ field in the packet header.

 What is the block of addresses after combining 16.27.24.0/26, 16.27.24.64/26, and 16.27.24.128/25?

What is the default prefix length for class C in CIDR notation?

A serious problem can arise in the sliding window operation when either the sending application program creates data slowly or the receiving application program consumes data slowly, or both. This problem is called the ______.

________ treats the two signs of congestion detections, timeout and three duplicate ACKs, in the same way.

What is needed to determine the number of the last byte of a fragment?

The IP header size is _______ bytes long.

Routers in the path are not allowed to ___________________________.

In the Reno TCP, when TCP enters the fast recovery, if a timeout occurs, TCP ____________________________________.

In classful addressing, the IPv4 address space is divided into _______ classes.