AT modem commands

The practice exam on this site questions AT commands to control modems. I guess my question is whether or not I'll see AT commands on the 221.

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Comments

Cross

It's always good to know. When I took my exam however, I was not tested on the AT commands.
But have in mind it's 20 random questions, so anything can be thrown your way

Webmaster

It has become so hard to disclose any information about the exam except for "read the exam objectives at the CompTIA site", but I would have to say yes, you might be questioned on particular AT commands, and like Cross says: It's always good to know.

I'm working on a Modems TechNote here:
www.techexams.net/technotes/modems.shtml but it is very preliminary. However it does contain a list of common AT commands. Trying them out will make it easy to memorize them. Actually most of them are quite simple: in ATD D stands for Dial, in ATH H stands for Hangup ATA is Answer....

Johan

commodore

Thanks for the input,

..and yes I should have worded my question as to whether AT commands were included in the exam objectives, next time I'll be more carfull.

Kind regards

bellboy

i tried to learn the simple stuff. dialing, hanging up, how to get an outside line, etc.

RussS

Yes, having knowledge of the basic commands is essential. I had 1 question on them, but as per the agreement I can not divulge the question except to say that it was BASIC.

mj23449

http://www.modemhelp.net/basicatcommand.shtml

Check out the above site. I use this all the time while I'm at work since I work for an ISP. Plus they have modem strings based on just about every modem you could think of.