Monday’s sample question focused on the data link layer addresses used as frames pass over a Frame Relay WAN. Today, I’ll summarize the key points that must be considered when answering that question, ...

In 1992, frame relay was portrayed as an interim technology that would be replaced by Switched Multimegabit Data Service. In 1995, industry insiders predicted frame relay would be devoured by ATM.

Today I’ll wrap up the discussions of the various discussions of the last few weeks, in which we’ve looked at the layer 2 and 3 addresses, and layer 4 port numbers, that could be included on the exams ...