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| 作者：不明 来源：www.pccode.net 整理 发布时间：2007-1-24 15:24:21 发布人：wongrs | |
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ngth, 802.2 Header and Data, FCS C. Preamble, SA, DA, Length, Type, Data, FCS D. Preamble, DA, SA, Type, 802.2 Header and Data. FCS Answer: A - The Ethernet frame contains these fields: Preamble, DA, SA, Type, Data, FCS. An 802.3 frame has the fields of Preamble, DA, SA, Length, 802.2 Header and Data, and FCS. Notice that it differs from an Ethernet frame with the Length and 802.2 Header fields. The Ethernet frame has a Type and Data field in place of the Length and 802.2 Header fields. 6) Which statement correctly defines the difference between Ethernet II (defined by Xerox, Digital, and Intel) and IEEE 802.3? A. The two specifications differ in their descriptions of the datalink layer. B. The two specifications differ in their descriptions of the physical layer. C. Ethernet II has MAC and LLC sublayers. D. IEEE 802.3 has MAC and LLC sublayers. Answer: A & D - IEEE 802.3 splits out the datalink layer into MAC and LLC sublayers. Good luck everyone Hello to you all. I passed the CCNA exam today (18.10.99). Their are 2 hours for 78 questions. The time is just enough. but it's a real tiring exam. I tried to memorized as many questions as I could , hope it will help you. 1. What is the command to enter a console password? 2. What can you expect to come after the command banner motd? answer: entering a password. 3. Three questions about steps of encapsulation.two of them where drag and drop, where you had to put each of the 5 steps in it's place and the fird was a strate forward question. remember the steps are : user information into data, data intosegments, segments into packets, packets into frames, frames into bits. 3. One drag and drop question where you had to drag the functions of the layers of the osi model into the correct layer. 4. How many bits can you borrow from a class c address for network? a: 6 5. What are the benefits of TCP/IP protocol? a: Connection oriented, assurance of delivery. 6. What is the purpose of Flow contr
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