CCNP Route Practice Questions

IS-IS (Intermediate System in OSI) Questions

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Q6. In OSI hierarchical routing terminology, a router is referred to as which of the following?

A. ES

B. IS

C. CLNP

D. ES-IS

Correct Answer: B

Explanation:

Some of the OSI terms that are used in OSI routing environment are given below:
ES: End System, refers to any node that does not take part in the routing process, such as a work station.
IS: Intermediate System, refers to any network node that takes part in the routing process.
IS-IS: Intermediate System-to-Intermediate System, a routing protocol defined for OSI environment.
CSNP: ConnectionLess Network Protocol, protocol used by IS-IS for routing in OSI environment.

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