300-510 · Question #245
300-510 Question #245: Real Exam Question with Answer & Explanation
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Question
Refer to the exhibit. The four routers in this network have formed adjacencies. Router R2 is an IS- IS level 1-2 router that connects to other areas, and the attach bit is set in the R2 level 1 LSP advertisements to R1. According to the network design, R2 should push level 2 routes from its routing table to the R1 routing table. However, R1 installed a default route in its routing table. Which action resolves this problem?
Options
- AUse the is-type level-1-2 backdoor command to unset the attach bit on R1 and use a prefix list to
- BUse the is-type level-1-2 backdoor command to unset the attach bit on R2 and configure a
- CSet the attach bit on R1 and use a prefix list to filter prefixes from R2.
- DConfigure R2 as a level 1 router and use a prefix list to filter prefixes to R1
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