Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers. All routers have a system address included in IS-IS.
Which of the following describes the route that router R4 will use to reach the system address of router R6?
A . Router R4 will have a route to router R6’s system address with router R2 as the next-hop.
B . Router R4 will have a default route with router R2 as the next-hop.
C . Router R4 will have a default route with router R3 as the next-hop.
D . Router R4 will not have a route that can be used to reach the system address of router R6.
Answer: D