Wendell Odem Test Question

mgmguy1

I am sitting in Starbucks studying for my CCENT and going thru Wendell Odem's- 640-822 test engine and I am across this question and I think the answer is wrong.

I am on Question SE-l1-822-19-003. Anyway the answer it game me seem wired.
The three answers are as follows.

1. The cable connecting R2 to PC2 should be a crossover cable
2. The cable connecting R3 to the WAN link is Twisted -pair cabling from the Telco,typically with an RJ-48 connector.
3. The cable connecting R2 to the CSU is a serial cable.


My only issue I have is with Answer one. Anytime a PC is connected to a router and the PC is not connecting to a console or AUX port the proper cable to use is a straight thru cable correct ?

I cannot copy the question here so if you have the Wendell Odem 3rd Edition CCNA library this question was taken from the book's CD you can see the graphic I am looking at.

Please let me know if I am correct or not ?

bbarrick

PC and Router are under the same bracket, so no I believe they would need a crossover if directly connected to each other. PC, Router, and a wireless access point use straight through when connecting to a hub or switch. But they will need crossovers if connected to each other.

Jon_Cisco

I am just getting started but to test my routers ip config I pinged it from my laptop with a crossover cable connected to the fast Ethernet port. So I believe a direct connection would require the crossover cable.

bbarrick

Although I believe in some cases with auto mdix a straight through may work as well it may be best just to use a crossover and save the cpu cycles.

WilyOne

Yes but don't count on Auto MDIX to always work in all cases. The important thing to remember for the CCNA exams is connecting like devices requires crossover. A router is considered a PC (since it essentially is a computer), so PC-to-Router is like-to-like, hence use a crossover.