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Exam 300-101 topic 1 question 363 discussion

Actual exam question from Cisco's 300-101
Question #: 363
Topic #: 1
[All 300-101 Questions]

Refer to the exhibit.

EIGRP has been configured on all routers in the network. What additional configuration statement should be included on router R4 to advertise a default route to its neighbors?

  • A. R4(config)# ip default-network 10.0.0.0
  • B. R4(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.1
  • C. R4(config)# ip route 10.0.0.0 255.0.0.0 10.1.1.1
  • D. R4(config-router)# default-information originate A
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Suggested Answer: Explanation 🗳️
The "ip default-network " command will direct other routers to send its unknown traffic to this network. Other router (R1,R2,R3) will indicate this network as the "Gateway of last resort".
There is another way to route unknown traffic to 10.1.1.0/24 network: create a static route using "ip route 0.0.0.0 0.0.0.0 10.1.1.2" command then inject this route using the "network 0.0.0.0" command, or using "redistribute static" command.
Note: In EIGRP, default routes cannot be directly injected (as they can in OSPF with the default-information originate command. Also, EIGRP does not have the "default-information originate" command).

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CraigB83
4 years, 6 months ago
ip route 0.0.0.0 0.0.0.0 10.1.1.1 would have been my first choice, but this is not executed in Global Config, A is correct
upvoted 1 times
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soon
5 years, 3 months ago
answer is A
upvoted 2 times
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