Thursday, February 3, 2011

QUESTION 21 Refer to the exhibit. Which three statements are true about how router JAX will choose a path to the 10.1.3.0/24 network when different routing protocols are configured?

QUESTION 21 Refer to the exhibit. Which three statements are true about how router JAX will choose a path to the 10.1.3.0/24 network when different routing protocols are configured? (Choose three.)





















A. By default, if RIPv2 is the routing protocol, only the path JAX-ORL will be installed into the routing table.
B. The equal cost paths JAX-CHI-ORL and JAX- NY-ORL will be installed in the routing table if RIPv2 is the
routing protocol.
C. When EIGRP is the routing protocol, only the path JAX-ORL will be installed in the routing table by default.
D. When EIGRP is the routing protocol, the equal cost paths JAX-CHI-ORL, and JAX-NY-ORL will be installed in the routing table by default.
E. With EIGRP and OSPF both running on the network with their default configurations, the EIGRP paths will be installed in the routing table.
F. The OSPF paths will be installed in the routing table, if EIGRP and OSPF are both running on the network with their default configurations.

Answer: ADE

Explanation:

Only RIP protocol used Path selection is done by using HOP count as the metric,path with least HOP's will be taken as best path so option A.

Only EIGRP protocol used,EIGRP selects the best using a combinations of 5 metrics Bandwidth,Delay,Reliability,Load & MTU.If Metric is the same Load Balancing occurs
between the paths,Option D where 2 equal cost paths are taken.

If there are Mulitple Routing protocols used the Route with the Best AD is installed to the routing table.

OSPF and EIGRP are the 2 Routing protocols used and both have Route to a network then EIGRP path will be chsen to OSPF since lower AD.So Option E.

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