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Exam JN0-643 topic 2 question 111 discussion

Actual exam question from Juniper's JN0-643
Question #: 111
Topic #: 2
[All JN0-643 Questions]

-- Exhibit

-- Exhibit --
Click the Exhibit button.
In the topology shown in the exhibit, which two BGP attributes can AS1 manipulate to influence the path that AS4 takes to reach prefixes originated by AS1?
(Choose two.)

  • A. Local Preference
  • B. AS Path
  • C. Origin
  • D. MED
Show Suggested Answer Hide Answer
Suggested Answer: BC 🗳️
by spillo3000 at Aug. 27, 2021, 7:26 a.m.

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Testmig
11 months, 1 week ago
It should be BC. The BGP multiple exit discriminator (MED, or MULTI_EXIT_DISC) is a non-transitive attribute, meaning that it is not propagated throughout the Internet, but only to adjacent autonomous systems (ASs). The MED attribute is optional, meaning that it is not always sent with the BGP updates. The purpose of MED is to influence how other ASs enter your AS to reach a certain prefix. https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/med-attribute.html#id-understanding-the-med-attribute-that-determines-the-exit-point-in-an-as Local Preference can only be propagated within an AS meaning that it is not advertised to adjacent or neighboring AS.
upvoted 1 times
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spillo3000
3 years, 3 months ago
aspath + med BD
upvoted 1 times
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