Levels and Areas JN0-364 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In IS-IS, what is the primary purpose of the two-level hierarchy?

   • ATo distinguish between IPv4 and IPv6 routing within the same area.
   • BTo provide redundancy by having two separate routing protocols running in parallel.
   • CTo separate routing within an area (Level 1) from routing between areas (Level 2), allowing Level 2 routers to form the backbone.
   • DTo allow Level 1 routers to carry the full routing table of the entire network.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which statement correctly describes the operation of Level 1 and Level 2 routers in IS-IS?

   • ALevel 1 routers route within their area and use the attached bit to send traffic destined outside the area to the nearest Level 2 router.
   • BLevel 2 routers do not exchange routing information with other Level 2 routers.
   • CLevel 1 routers maintain a complete routing table for the entire IS-IS domain.
   • DLevel 2 routers only route within a single area and do not participate in inter-area routing.
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A network engineer is designing an IS-IS network with multiple areas. The engineer wants to ensure that Level 1 routers can make optimal routing decisions for inter-area traffic. Which configuration is most appropriate?

   • AConfigure Level 1 routers with static routes to all inter-area prefixes.
   • BIncrease the metric of the default route to encourage the use of specific routes.
   • CConfigure all Level 1 routers as Level 1-2 to allow them to learn Level 2 routes.
   • DEnable route leaking on Level 1-2 routers to advertise Level 2 routes into Level 1 areas.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   What is the primary role of Level 2 routers in IS-IS?

   • ATo route traffic within a single area.
   • BTo provide a default route to all Level 1 routers in their area.
   • CTo maintain the Level 1 link-state database for their area.
   • DTo form the backbone and route traffic between areas.
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   In IS-IS, how does a Level 1 router determine that a destination is outside its area and reachable via a Level 2 router?

   • ABy receiving a default route from the Level 2 backbone via route leaking.
   • BBy using the system ID of the destination to determine the area.
   • CBy performing a DNS lookup for the destination area address.
   • DBy checking the attached bit in the Level 1 LSPs received from Level 2 routers.
   Reveal Solution Discussion Select an answer first