Test your basic knowledge |

Subjects : cisco, it-skills, ccnp
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is one mechanism that GURANTEES the BGP AS path is loop free?






2. What does a '*' and '>' mean in the BGP table?






3. What is the command to enable BPG authentication?






4. Explain the relationship between MBone - DVMRP - PIM - IGMP - CGMP hosts - routers and switches?


5. What does PIM use for its multicast routing calculations?






6. IOS command to dictate when a leaf router (in PIM-SM) will switch from shared to source tree.






7. What advantage is there it establishing a neighbor relationship using a loopback interface?






8. What config would be used to configured an outbound BGP distribute list to block all routes from being advertised except ones from 192.168.0.0 /24 network to neighbors 10.1.1.1 and 10.1.1.2?






9. What are the commands to enable multicast routing on a router?






10. What is the significance of the 8th bit in the MAC address?






11. What is the difference between iBGP and eBGP?






12. What special consideration is there when peering to a eBGP neighbor using a loopback? What is the solution to this?






13. Explain the Local Preference attribute.<br />


14. What command used to perform the following:<br />A) Reset all neighbors session ('bounce')<br />B) Soft inbound reset<br />C) Soft outbound reset<br />D) Soft inbound reset of neighbor 10.1.1.1<br /><br />R1# clear ip bgp <br />R1# clear ip bgp soft






15. Explain CGMP.


16. What does the 'maximum-paths router' command facilitate?






17. State 3 functions SDR performs?






18. Within the layer 3 multicast address space - name 3 reserved scopes and their purpose.






19. Describe how PIM-Sparse-Dense operates.


20. What is a neighbor call in BGP?






21. Explain the BGP route decision process? How many routes does it select? Where do they go? Where do the ones go that are not used?






22. What does a 0.0.0.0 signify in the Next Hop column in the BGP Table?






23. What are some of the obstacles with IGMP and multicast in general as it relates to layer 2/switches?






24. Which IOS command shows what version of IGMP is running?






25. Explain the contents of the BGP update message.






26. What are the two multicast distribution tree types models and differences?


27. Explain the AS-Path attribute.


28. Explain the concept of RPF.






29. What is the significance of an AS being a transit AS?


30. What is a BGP peer group?


31. What is the layer 2 multicast address and how is it formed? What potential problem is there with this?






32. Name what an update message may include.






33. What is a BGP route reflector - What is it purpose?






34. What is the multicast IP address space?






35. What entities are responsible for allocating BGP AS numbers?






36. Explain what role IGMP plays.






37. What effect does (S -G) and (* -G) entries have on router CPU?






38. How does Source and Shared Distribution Tree models related to PIM-DM and PIM-SM?


39. What are the administrative distances of eBGP and iBGP?






40. Explain the path selection process for BGP? What is the order and what preference does it take?






41. What are some disadvantages of multicast?






42. What is the terminology for BGP route reflector?


43. What is one method involving minimal configuration to prevent and multi-homed BGP network from becoming a transit AS?






44. How is the BGP network command differ from IGP's?






45. Explain the Community attribute.


46. Explain the IGMPv3 membership process and new features.






47. What are the basic commands to enable BGP - define a BGP peer relationship and advertise a network?






48. What is the formula to determine number of links in a full mesh topology?






49. What type of protocol is BGP classified as? What is its decision engine?


50. What is the signifigance of the neighbor address when establishing BGP neighbor in the context of network that has multiple paths to the neighbor?