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Exam 300-320 All Questions

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Exam 300-320 topic 1 question 3 discussion

Actual exam question from Cisco's 300-320
Question #: 3
Topic #: 1
[All 300-320 Questions]

In which OSI layer does IS-IS operate?

  • A. Layer 1
  • B. Layer 2
  • C. Layer 3
  • D. Layer 4
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Suggested Answer: C 🗳️
by bella at July 9, 2019, 2:39 p.m.

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tchow1985
4 years, 6 months ago
Is this Exam equivalent to current cisco exam ENSLD 300-420?
upvoted 1 times
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nicey999
5 years, 2 months ago
layer 2 i thought
upvoted 1 times
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jedidbz89
5 years, 2 months ago
ans is LAYER 2
upvoted 1 times
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Naderelmansi
5 years, 4 months ago
The intermediate systems communicate between each other by using Layer 2 of the OSI model directly Cisco Book of CCDP ARCH
upvoted 1 times
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gastonreppeto77
5 years, 5 months ago
Look at RFC 1142, there details abouts OSI Data Link layer.
upvoted 1 times
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Scheldon
5 years, 6 months ago
From WIkipedia While OSPF was natively built to route IP and is itself a Layer 3 protocol that runs on top of IP, IS-IS is an OSI Layer 2 protocol.
upvoted 1 times
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Erwafu
5 years, 6 months ago
Correct answer is Layer 3. It is a routing protocol.
upvoted 1 times
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bella
5 years, 9 months ago
Correct Answer is Layer 2. https://en.wikipedia.org/wiki/IS-IS
upvoted 3 times
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