I am getting ready to take my CCNA next Tuesday and I seem to have a mindblock in ISDN theory. Can someone who has taken the exam recently let me know how much emphasis is on ISDN?
Thanks in advance
What book did you study for the exam - reread that chapter!
Also, if you have access to the Sybex CCNA Study Guide by Todd L. read it - always felt that Todd's book was one of the best for JUST getting the facts needed for the test.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.