this is my first question on the forum.. so pls pardon me for asking silly stuff..
I am preparing for my CCNA and i am confused abt different WAN technologies.. if i'm not wrong then PPP, Frame Relay, ATM, ISDN etc are different WAN technologies.. right?? now while i was reading the chapter on PPP, it also talks abt HDLC encaptulation. then what is it? why it is used??
Is it an alternative to PPP (Point-to-Point) WAN connection?? some of you may already be laughing at my ignorance. but u see, i dont want to be laughed at all the time.
In an ideal scenario when will u be using PPP and when HDLC?? and for that matter other WAN technologies like Frame Relay, ISDN etc.. there is just so much to read and understand..
Also if anyone could pls suggest the best sources where i can practice the configuration of router and switches as i dont have any necessary equipments at home? any online simulation or something guys?? thanks a lot..
Sorry for the long question.. i hope i made myself understood there..
Thanks for the reply..