CCDA FAQ: Designing for Specific Protocols
Q1. List two distance vector routing protocols for IP.
- Routing Information Protocol (RIP)
- Interior Gateway Routing Protocol (IGRP)
Q2. What is the subnet number and broadcast address for host 220.127.116.11/30?
Q3. How many route entries can there be in an IGRP update packet?
Q4. What is the default mask for 18.104.22.168?
Q5. Is 001DG6Ef a valid IPX address?
Q6. What is RTMP?
Q7. What is NLSP?
Q8. What is the broadcast address for network 22.214.171.124 with a mask of 255.255.255.192?
Q9. Name three IP interior gateway routing protocols that support authentication.
Q10. Which routing protocol is capable of routing IPX and AppleTalk packets in addition to IP?
Q11. Which protocol advertises services by producing broadcasts every 60 seconds?
Q12. Which protocol defines areas for IP networks? Which protocol defines areas for IPX networks?
- OSPF defines areas for IP networks.
- NLSP defines areas for IPX networks.
Q13. What is the host address of the AppleTalk address 15.4.1? What is the network address? What is the socket number?
Q14. True or False: RIP version 2 sends route updates only when a change occurs on the network.
Q15. What are the default metrics used by EIGRP?
Q16. List three Cisco IOS features.
Q17. What protocol encapsulates AppleTalk packets in UDP for transport over an IP network?
Q18. What is the subnet address for host 126.96.36.199 with a mask of 255.255.255.224?
Q19. This routing protocol defines areas, domains, and supports hierarchical addressing.
Q20. What is an ABR?
Q21. Which protocol produces route updates every 10 seconds?
Q22. What routing protocol is used to communicate with Internet routers?
Q23. What routing protocol is recommended for hub-and-spoke topologies with lowbandwidth links with no route redundancy?
Q24. What is the host portion of 188.8.131.52, assuming default subnet masking?
Q25. This protocol supports route summarization, but it must be configured. If link flapping occurs, streams of updates are generated, causing router CPU overhead.
Q26. If a customer is looking for ways to reduce WAN traffic and is also considering tunneling AppleTalk in IP, what protocol would you recommend?
Q27. This protocol limits the number of route entries in a routing table update to 50 routes.
Q28. What is the network portion for an NLSP area of 0020ab00 with a mask of FFFF0000?
Q29. Of the following, which are valid IPX networks?
01010101 is a valid IPX network.
DADA is a valid IPX network.
789ABCDE is a valid IPX network.
024A6B8CE is not a valid IPX network. It is too long because IPX
addresses are limited to 32 bits (4 bytes or 8 hexadecimal characters).
0FG3ABD4 is not a valid IPX network. G is not a hexadecimal character.
10 is a valid IPX network.
0AB04 is a valid IPX network.
Q30. Is 184.108.40.206/28 a valid host address?
Q31. Convert the following IP address to the dotted decimal format: 00011011011011001100110000101111
00011011 is 27.
01101100 is 108.
11001100 is 204.
00101111 is 47.
The answer is 220.127.116.11.
Q32. If the client wants to use a nonproprietary routing protocol that can scale to hundreds of networks and fit in a hierarchical topology, which routing protocol can be recommended?
Q33 If a client wants to use a routing protocol that is easy to configure and that can scale to hundreds of networks, and if all routers are Cisco routers, which routing protocol can be recommended?
Q34. What is an ASBR?
Q35. What is a stub network in OSPF?
Q36. What is a totally stubby network in OSPF?
Q37. True or False: Bridged networks provide large scalability.
Q38. True or False: To reduce the traffic in bridge networks it is recommended to limit the size of the network and use routing to segment the network.
Q39. RIP uses a feature in which routes learned from a neighboring router are sent back to that neighbor with an infinite unreachable metric. What is that feature?
Q40. What is the update time in IGRP?
Q41. Does EIGRP send periodic updates?
Q42. Which queuing technique can be recommended to prioritize mission-critical SNA traffic?
Q43. List at least four Cisco IOS features.
Q44. True or False: The order in which access list commands are configured is not significant to the router.