Answers to the Chapter 8 Q&A Section 775
46
List the typical EIA/TIA standard interfaces used for serial cables with a Cisco router.
EIA/TIA-232, EIA/TIA-449, and EIA/TIA-530 are typical. V.35 and X.21, which are ITU
standards, are also typical. Be careful on the exam--this question asked for EIA/TIA
standards, so V.35 and X.21 would not be correct.
47
What field has Cisco added to the HDLC header, making it proprietary?
A Protocol Type field has been added to allow support for multiprotocol traffic. HDLC
was not architected to allow for multiprotocol support originally.
apA.fm Page 775 Monday, March 20, 2000 5:24 PM