Type, Length, Values (TLVs) JN0-364 Practice Questions (Page 2)

Questions 6–10

1. 6expert · medium

   An engineer is troubleshooting an IS-IS network where routers are not learning routes from a specific area. The engineer checks the LSP database and sees that the LSPs from that area are present but the routes are missing. What is the most likely cause?

   • AThe LSPs have a short remaining lifetime.
   • BThe LSPs have a checksum error.
   • CThe LSPs have a low sequence number.
   • DThe LSPs are using a TLV that the router does not support.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   What is the role of the TLVs in a Complete Sequence Number PDU (CSNP)?

   • AThey contain the IP addresses of all routers in the area.
   • BThey contain the routing table of the router.
   • CThey contain the authentication keys for the area.
   • DThey contain the full list of LSPs that a router has in its database.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   An engineer is troubleshooting a routing issue in an IS-IS Level 2 area. A router is not learning a route to a remote network. The engineer checks the LSP database and sees that the LSP containing the route is present on the router. What should the engineer check next to determine why the route is not being installed?

   • AThe sequence number of the LSP to ensure it is the latest version.
   • BThe TLV types in the LSP to ensure the route is advertised in the correct TLV.
   • CThe checksum of the LSP to ensure it is valid.
   • DThe remaining lifetime of the LSP to ensure it has not expired.
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A network administrator is troubleshooting an IS-IS network where routers are not learning all routes. The administrator suspects that some TLVs are not being propagated correctly. Which PDU type is responsible for summarizing the LSP database and ensuring that all routers have the same set of LSPs?

   • AHello PDU
   • BCSNP (Complete Sequence Numbers PDU)
   • CLSP (Link State PDU)
   • DPSNP (Partial Sequence Numbers PDU)
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   Which statement correctly describes how TLVs contribute to the extensibility of IS-IS?

   • AThey are only used for IPv6 extensions and not for the base IS-IS protocol.
   • BThey allow new protocol features to be added without changing the PDU header format.
   • CThey require all routers to be upgraded whenever a new TLV is introduced.
   • DThey replace the need for the IS-IS PDU header entirely.
   Reveal Solution Discussion Select an answer first