----- Original Message -----
Sent: Monday, July 24, 2000 2:37 PM
Subject: CCNA (Some help)
Hello group,
I have some questions if anyone can help me ..
and Thanks :)
1) In the ICRC Cisco book .. at page 47 (The
Ethernet/802.3 ..) 100BaseT4 is a 100-Mbps .. of Ethernet using four-pair
Category 3,4 or 5 cabling.
But in the Internetworking Technologies Handbook
(Second Edition) at page 103 (100BaseT4) .. run over existing Category 3
wiring, .. four pairs of cabling .. uses the half-duplex 4T + signalling
scheme.
What is the Correct support cables category 3
only or 3, 4 or 5.
2) what is the 100BaseT2 ?? (It use Category 3,4
or 5 UTP)
3) Does the Token Ring (IEEE 802.5) support
Multicasts (sending packets to a group of devices) in some book I red that
Multicasts is supported on an Ethernet or FDDI LAN (not allowed on Token Ring)
but broadcast is allowed on all LAN types. Take a note the in the ICRC cisco
book page 59 (Token Ring supports broadcasting and multicasting ..
Multicasting is used to send packets to special ...etc)
Any Help Please .. I am confuse
4) Is the Switch is faster then the Bridge ..
Why??
5) Is the IP Datagram header are important (Ex:
VERS, HLEN ... etc)
I hope I can make it in the 640-407 exam
before it retire. I think some diffrence between 640-407 & 640-507
that the passing score is 755 (640-407) and 822 (640-507) any idea .. i hope
it does not be 850 !!!
Thanks ..
:)
Mohammed Hakim