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| 作者：不明 来源：www.pccode.net 整理 发布时间：2007-1-24 15:24:18 发布人：wongrs | |
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l from Sybex. I also used ICRC by Laurel as a backup. The following are some of the questions I got from the exam. 1) There was a question on half-duplex. I answered like a “one-way narrow bridge”. 2) On the ipx ethernet question, I answered, ipx int e 0, ipx int e0, and ipx int. 3) There were a lot of subnet calculations on my exam. Be sure that you know how to find the class, max number of hosts and subnets given the ip and subnet. 4) I got the question on setting the rate on an interface to 56k. I answered: clock rate 56000. 5) Be careful of commands being executed in the wrong mode. Ea: access-list command can only be executed in the global config mode not the interface mode. 6) The was a question on filtering out telnet using access-list 1. I forgot the options but basically you need to remember that access-list 1-99 are standard IP access-lists. Standard IP access-lists CANNOT filter out ports like telnet (port 23). So you must actually filter out the whole interface in the question. Very tricky!!! 7) There was question on techniques that will prevent routing loops. I answered hold downs, triggered updates, poison reverse, and split-horiizon. 8) Know the OSI layers well. A lot of questions (7 or more) were based on knowing the definitions of each layer. 9) 2 questions on ISDN definitions (CPE, demarc, DCE, DTE etc..) Study the questions from the Sybex book. A lot of them were very close to the exam questions. A lot of the questions had 11 answers listed so guessing will be tough. Be sure to know the material well before taking the exam. Good Luck!!! Sky Hawk Passed CCNA exam with 870 out of 1000 , passing score : 775. 78 Questions in 90 mins. Used Sybex: Todd Lammle Study Guide and Study Exam notes Books., www.cisco.com 1. concentrate on 7 layers of OSI - about 10 qns on these. - remember - Session Layer :- dialog control start ,control , End Conversation with Applications. - Transport LAyer :- Flow control end -to end control . Establish and Drop reliable connex and uses Virtual Circuits (PVC)s and reassembe Segments back in order. - Network LAyer :- Logical addressing (IP/IPX) of packets and Network Routing . - Data Link Layer : - Hardware MAC address of NIC Cards .MAC = 32 bytes Network Adrs, 48 byte of Node address . - R
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