Levels and Areas JN0-364 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What is the role of a Level 1-2 router in IS-IS?

   • ATo act as a route reflector for Level 1 routers.
   • BTo connect a Level 1 area to the Level 2 backbone.
   • CTo maintain separate routing tables for IPv4 and IPv6.
   • DTo route traffic only within its own area.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   What is the purpose of the area address in an IS-IS Network Entity Title (NET)?

   • ATo provide the IP address of the router.
   • BTo identify the router within the area.
   • CTo identify the IS-IS area to which the router belongs.
   • DTo specify the routing protocol version.
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A Level 1 router in an IS-IS network receives a packet destined for a host in a different area. The router has a default route installed via the attached bit. What does the router do with the packet?

   • AIt forwards the packet to the next hop of the default route, which is a Level 1-2 router.
   • BIt drops the packet because it does not have a specific route to the destination.
   • CIt sends the packet to the Level 2 router with the highest system ID.
   • DIt floods the packet to all Level 1 routers to find the destination.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which part of an IS-IS NET uniquely identifies a router within an area?

   • AThe NSEL (NSAP selector)
   • BThe system ID
   • CThe ISO address
   • DThe area address
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A service provider has two Level 1 areas connected via a Level 2 backbone. A Level 1 router in area 49.0001 needs to reach a prefix in area 49.0002. The shortest path from the Level 1 router to the destination goes through a Level 1-2 router in its own area, but the default route points to a different Level 1-2 router, causing suboptimal routing. What should be configured to improve the path?

   • AIncrease the metric of the default route to discourage its use.
   • BConfigure the Level 1 router with a static route to the destination prefix.
   • CChange the Level 1 router to Level 2 to learn the specific route.
   • DEnable route leaking from Level 2 to Level 1 on the Level 1-2 routers.
   Reveal Solution Discussion Select an answer first