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Exam 300-420 topic 1 question 58 discussion

Actual exam question from Cisco's 300-420
Question #: 58
Topic #: 1
[All 300-420 Questions]

Which control-plane protocol is used to map an endpoint to a location in a Cisco SD-Access network?

  • A. FabricPath
  • B. IS-IS
  • C. LISP
  • D. MP-BGP
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Suggested Answer: C 🗳️
by bccabrera at May 22, 2023, 10:23 a.m.

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bccabrera
7 months ago
Selected Answer: C
The SD-Access fabric control plane is based on the Locator/ID Separation Protocol (LISP). LISP eliminates router processing for every IP destination address and route by moving the remote destination information to the LISP Map Server (MS), a centralized mapping database, and a control plane node in SD-Access. The LISP MS allows the routers to manage their local routes and query the map system to locate destination Endpoint Identifiers (EIDs). It provides SD-Access benefits such as smaller routing tables, dynamic host mobility for wireless and wired network endpoints, and built-in network segmentation via VRF instances. Cisco SD-Access also includes distributed Anycast Gateway, VN Extranet, and Fabric Wireless.
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