makenocent wrote: »
I'm hearing some people tell me to not bother studying it because they never even saw isdn questions when they took the test.
Is ISDN gone from the test?
Turgon wrote: »
Latter day CCNA/CCNP and even CCIE's will struggle with ISDN. There is plenty of ISDN in the field, for backup and for dialup to provide support of remote devices. I would advise anyone to learn ISDN.