Frame-Relay question

borumas

I had a question on a practice test which I failed to find an answer for, it is basically like this:
DTE (router)

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XXXXXX

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Frame-Relay cloud
where you are supposed to choose what items could possibly be in place of the x item, I picked CSU/DSU but other options from memory were a modem, ISDN modem, and some other stuff and I had to pick 2 items. So far from looking in my ICND book and a Sybex book I have around the only thing I can think of is a Demarc, do you have any other ideas for the answer?

Netstudent

maybe a smart jack or an ATM interface??? Kinda hard to say without seeing the answer choices.

borumas

Thanks for the reply, I don't recall seeing FRF.5 or .8 as a choice but that would probably only effect the frame-relay switches in the cloud and not between the could and the router (could be wrong though since FRF.8 does allow one router to connect to a ATM VC and the other router to connect to a Frame-Relay VC and still communicate from what I've read).

Paul Boz

I'd say that CSU/DSU is the right answer. Usually for frame relay ATM connections that stuff doesn't leave the cloud.

borumas

Thanks, what got me is that they wanted 2 answers,I did pick CSU/DSU as my first choice but guessed the other one so I wanted to try to figure out what else could be in that spot.

faisal79

will the second option be DCE?

wait2dominate

I'm thinking the second answer would be a type of modem... I think I've seen similar questions in the Cisco Press Books and the Network Academy Program.

I could very well be wrong though. I haven't covered the WAN Technologies yet....that's due in the next couple weeks.

kafifi13

has to be the CSU/DSU