Adjacencies and Neighbors JN0-352 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   Two Juniper routers are connected back-to-back. Both have IS-IS configured, but the adjacency is not coming up. The engineer checks the configuration and finds that one router has `area 49.0001` and the other has `area 49.0002`. Both are configured as Level 1. What is the most likely reason the adjacency is not forming?

   • AThe circuit types must be set to Level 1-2 for inter-area communication.
   • BThe area IDs must match for a Level 1 adjacency to form.
   • CThe hello interval must be the same on both routers.
   • DThe system IDs must be different for the adjacency to form.
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A network administrator is troubleshooting an IS-IS adjacency that is stuck in `Initializing`. The administrator has verified that the MTU is consistent and the authentication is correct. What is the next most likely cause to investigate?

   • AThe hello interval is set to 0 on one router.
   • BThe system ID is the same on both routers.
   • CThe circuit type is set to Level 1 on one router and Level 2 on the other.
   • DThe hold time is set to 0 on one router.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   In IS-IS, what is the correct sequence of adjacency states as a new neighbor is discovered?

   • AInitializing, Down, Up
   • BUp, Initializing, Down
   • CDown, Initializing, Up
   • DDown, Up, Initializing
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   An IS-IS adjacency is stuck in the Initializing state. Which of the following is the most likely cause?

   • AThe circuit type is set to Level 1 on one router and Level 2 on the other.
   • BThe router is not receiving IIHs from the neighbor that contain its own system ID.
   • CThe authentication key is configured on only one side of the link.
   • DThe MTU on the interface is too small to carry the largest LSP.
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   Two IS-IS routers are directly connected, but no adjacency is forming. The interface is up, and the routers are sending IIHs. Which configuration mismatch is the most likely cause?

   • AThe system ID is the same on both routers.
   • BThe hold time is set to 30 seconds on one router and 90 seconds on the other.
   • CThe hello interval is set to 10 seconds on one router and 30 seconds on the other.
   • DThe area ID is 49.0001 on one router and 49.0002 on the other, and both are configured for Level 1 only.
   Reveal Solution Discussion Select an answer first