A: WAN Basics
What happens over an Ethernet WAN link? What Data Link addresses appear in the frame that the routers forward over the WAN? What data link headers exist on the WAN link? What types of cabling [...]
Q: WAN Basics
WAN connections span much longer distances than LANs – so what happens in that WAN? Even for CCENT and CCNA, you can understand some of the basic facts about how a WAN service provider builds a [...]
Answer: Predicting ARP Messages 1
This latest #CCNA / #CCENT question uses a specific scenario: a working ping, a clearing of a switch MAC address table, and a repeat of the ping. The scenario hopes to make stretch a bit and [...]
Predicting ARP Messages 1
#CCNA candidates learn about ARP early in the ICND1 half of their studies, and it takes just a few minutes to learn the basics. At the same time, people who write CCNA exam questions can ask us [...]
A: Which ARP and Where
Host A web browsers to server E, which sits on a different subnet. Who ARPs for whom, and where? Check the question, pick your answer, and come back here to check your answer and see the explanation.
Q: Which ARP and Where
Are you an #ARP pretender? ARP is simple. At the same time, ARP can be used as both a testing tool and interview tool determine whether someone really knows how networks work, or if they just [...]