Cisco Certified Network Professional Enterprise CCNP Enterprise · Free Practice Question Medium
Question 12
Which of the following best describes the primary function of the Locator/ID Separation Protocol (LISP) in a network architecture?
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A
It replaces traditional routing protocols by creating a single global routing table for the internet.
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B
It separates device identity from location to improve routing scalability and mobility.
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C
It provides encryption and authentication for secure data transmission over untrusted networks.
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D
It dynamically assigns IP addresses to endpoints in a network to reduce manual configuration.
Reveal correct answer
Correct answer: B
Explanation
LISP is designed to improve network scalability and mobility by decoupling endpoint identifiers (EIDs) from routing locators (RLOCs). This separation allows devices to maintain a consistent identity (EID) while their physical location (RLOC) can change dynamically without affecting reachability. By reducing the size of global routing tables and enabling more flexible IP mobility, LISP enhances efficiency in large-scale networks. It does not handle dynamic IP assignment, encryption, or replace traditional routing protocols but rather optimizes existing routing mechanisms.
Discussion
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