tailieunhanh - CCNA 1 and 2 Companion Guide, Revised (Cisco Networking Academy Program) part 108

Cisco Networking Academy Program CCNA 1 and 2 Companion Guide, Revised part 108 is the Cisco approved textbook to use alongside version of the Cisco Networking Academy Program CCNA 1 and CCNA 2 web-based courses. The topics covered provide you with the necessary knowledge to begin your preparation for the CCNA certification exam (640-801, or 640-821 and 640-811) and to enter the field of network administration. | Page 1039 Tuesday May 20 2003 2 53 PM Chapter 18 1039 Chapter 18 1. When a technician performs basic testing of a network which of the following is true A. The technician should proceed in sequence from one OSI reference model layer to the next. 2. What approach should a technician start with when he she troubleshoots a network A. The technician should start with a structured approach. 3. When a technician troubleshoots a problem on a network which layer of the OSI model should he she begin with A. Begin with Layer 1 4. If a technician wants to test network connectivity which basic command should be used B. ping 5. When a network administrator wants to verify the application layer software between source and destination stations which of the following commands should be used B. telnet 6. You suspect that one of the routers connected to your network is sending bad routing information. What command can you use to check B. router show ip route 7. Why would you display the IP routing table D. To set the parameters and filters for the router 8. If you wanted to see RIP routing updates as they are sent and received what command structure would you use C. router debug ip rip 9. The dynamic output of the debug command comes at a performance cost which produces processor overhead A. High 10. By default the router sends the debug output and system messages to what A. The console Page 1040 Tuesday May 20 2003 2 53 PM 1040 Appendix C Check Your Understanding Answer Key 11. The telnet command provides what type of terminal B. Virtual 12. ICMP stands for what C. Internet Control Message Protocol 13. Most interfaces or NICs have what type of lights that show whether there is a valid connection A. Indicator 14. Telnet is used at what layer of the OSI reference model D. Layer 7 15. If the routing protocol is not enabled or the IP address cannot be determined at which layer of the OSI model should an administrator begin to look C. Layer 3 Chapter 19 1. Which of .