Jumat, 07 Januari 2011

CCNA Quiz Chapter 5 Discovery 3


  1. How do RIP v1 and RIP v2 differ?
>> only RIP v2 sends subnet mask information with its routing updates
  1. Router A and router B are exchanging RIP v2 updates. Router B has not received an update from Router A in the prescribed time. Assuming default timer settings, how many seconds will router B wait before it marks the routes served by router A as invalid?
>> 180 seconds
  1. What are three advantages of using EIGRP instead of RIPv1?
>> EIGRP supports VLSM and CIDR >> EIGRP supports a higher hop count >> EIGRP uses RTP, a protocol independent transport layer protocol to guarantee delivery of routing information
  1. According to the router output from the show ip route command shown above, which of the following statements are true?
>> the hop count to a device on network 192.168.8.0 is 2 >> the logical address of the next router for network 192.168.1.0 is 192.168.3.1
  1. If EIGRP routing is employed and the successor route to a destination becomes unreliable, which of the following would be used as a replacement?
>> the feasible successor route in the topology table
  1. If an EIGRP route goes down and a feasible successor is not found in the topology table, how does DUAL flag the route that has failed?
>> active
  1. Which of the following tables does DUAL use to calculate the lowest cost routes to each destination?
>> neighbor table and topology table
  1. What is the advantage of routers forming adjacencies when using EIGRP?
>> new routers and their routes can quickly be discovered by neighbor routers >> a router can quickly discover when a neighbor router is no longer available >> changes in network topology can quickly be shared with neighbor routers
  1. You have configured EIGRP route summarization on a serial interface to summarize routes learned from an Ethernet interface. What route will show in the routing table?
>> a summary route pointing to the Null0 interface
  1. What are two attributes of EIGRP?
>> it is a distance-vector routing protocol >> it supports CIDR
  1. What are two advantages of static routing over dynamic routing?
>> static routing is more secure because routers do not advertise routes >> CPU utilization is lower with static routes
  1. Examine the following router configuration:
Interface Serial0/0
Ip address 10.10.1.2 255.255.255.0
Interface Serial0/1
Ip address 10.11.1.2 255.255.255.0
Router eigrp 75
Network 10.0.0.0
No auto-summary
Which command set would summarize the 10.10.0.0/16 network when it is sent out interface S0/1?
>>           interface S0/1
ip summary-address eigrp 75 10.10.0.0 255.255.0.0

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