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Is ISDN part of CCNA?

karchid123
Level 1
Level 1

The official curriculum doesn't mention ISDN. But I find questions related to that in couple of dumps that I have.

Please clarify.

1 Reply 1

sirdudesly
Level 2
Level 2

It used to be in version 3 a fair bit but from what i've heard it's all but gone now.

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