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 about ARP in many ways that require us to think about ARP in the context of many other networking concepts. You need to be ready to take that basic knowledge and answer these kinds of applied ARP questions – and here’s a sample.
In quick succession, host A successfully pings host B, the engineer clears the MAC table on switch SW2, and host A again successfully pings host B. Which answers describe the ARP Requests sent as a result of the second ping?
- 1 ARP Request is sent by hosts A and B combined
- 2 or more ARP Requests are sent by hosts A and B combined
- 1 ARP Request is sent by switches SW1 and SW2 combined
- 2 or more ARP Requests are sent by switches SW1 and SW2 combined
- 1 ARP Request is sent by routers R1 and R2 combined
- 2 or more ARP Requests are sent by routers R1 and R2 combined
- 0 ARP Requests are sent
As usual, I’ll post the answer in just a few days. At that time, a link to the answer will appear towards the bottom of this page, just above where the comments begin.