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Exam 300-510 topic 1 question 44 discussion

Actual exam question from Cisco's 300-510
Question #: 44
Topic #: 1
[All 300-510 Questions]


Refer to the exhibit. P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied. The BGP session is not coming up. Assume that there is no IP reachability problem and both routers can open tcp port 179 to each other. Which two actions fix the issue? (Choose two.)

  • A. Change MD5 to HMAC-SHA1-12
  • B. Change MD5 to HMAC-ESP
  • C. Change MD5 to SHA-1
  • D. Change MD5 to HMAC-MD5
  • E. Remove the send and accept lifetime under key 1
Show Suggested Answer Hide Answer
Suggested Answer: AD 🗳️
Reference:
https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-0/security/configuration/guide/sc40crsbook_chapter5.html
by NC9337 at Dec. 8, 2021, 5:53 p.m.

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nolbi
11 months ago
Key rollover is supported. https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r6-1/routing/configuration/guide/b-routing-cg-crs-61x/b-routing-cg-crs-61x_chapter_010.html#con_1446789 section BP keychains
upvoted 1 times
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NC9337
1 year, 11 months ago
Yes, Border Gateway Protocol (BGP) supports only HMAC-MD5 and HMAC-SHA1-12.
upvoted 3 times
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