Are you sure the question didn't say, "What are some characteristics of ALL routing protocols?" Then the answer is E because routing protocols behave differently and no answer applies to ALL of them.
Some routing protocols don't send periodic updates. For example, EIGRP doesn't. Many routing protocols don't have a separate hello mechanisms, including RIP and IGRP. I think C and D were a feeble attempt to distinguish link-state and distance-vector maybe. However, one could certainly argue that both exchange information about links and routes. But I bet that's not what the test writer had in mind. Regardless, it's a bad question, lacking in logic and technical accuracy, in my opinion. Priscilla >--- mlh wrote: > > Hi, there, > > > > The following question has been given a reference > > answer : ABCD > > But I am not sure: All routing protocols update > > periodically? > > All of them send hello message? what is the > > difference between > > information about links and routes? > > > > What are some characteristics of routing protocols? > > > > A - Send periodic updates. > > B - Have a separate hello mechanism. > > C - Exchange information about links. > > D - Exchange information about routes. > > E - No answer is correct >[EMAIL PROTECTED] > > >__________________________________________________ >Do You Yahoo!? >Yahoo! Sports - live college hoops coverage >http://sports.yahoo.com/ ________________________ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38457&t=38393 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

