Comprehensive and Detailed In-Depth Explanation:
To analyze the correct answer, we need to break down the topology and protocol behaviors step by step:
* Understanding the IS-IS and OSPFv3 Network Setup:
* IS-IS IPv6 is running between R2, R6, and R3.
* OSPFv3 is running on other links.
* Area 1 is a stub area, which means it does not accept external routes but can have a default route (::/0).
* Area 2 is an NSSA (Not-So-Stubby Area), meaning it allows external routes as NSSA external LSAs.
* Analysis of Each Answer Option:
A: "The routing table of R6 contains the route ::/0." # FALSE
* R6 only participates in IS-IS (Level-1) and does not receive a default route (::/0) from Level-
2 routers.
* Since R6 is in IS-IS Level-1 and does not have a connection to a Level-2 router that provides a default route, it will not have a ::/0 route in its routing table.