Routing Instances JN0-105 Practice Questions (Page 2)

Questions 6–10

1. 6application · easy

   A router has a routing instance named 'Blue' of type 'virtual-router'. The 'Blue' instance has interface ge-0/0/3 assigned. A user wants to check which interfaces are part of the 'Blue' instance. Which command would show this?

   • Ashow route instance Blue
   • Bshow interfaces terse
   • Cshow configuration interfaces ge-0/0/3
   • Dshow route table Blue.inet.0
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2. 7expert · hard

   An administrator has two routing instances, 'A' and 'B'. The administrator wants to leak routes from 'A' to 'B' using a routing policy. The policy has been configured and applied to the 'B' instance's import statement. However, the routes from 'A' are not appearing in 'B'. What is a likely reason for this?

   • AThe policy needs to be applied to the 'A' instance's export statement as well.
   • BThe routing instances must be of the same type for route leaking to work.
   • CThe policy was applied to the wrong instance; it should be applied to 'A' as an export policy.
   • DThe routes in 'A' are not active or have no valid next-hop.
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4. 8foundation · easy

   Which Junos CLI command displays the routing table for a specific routing instance?

   • Ashow bgp summary
   • Bshow interfaces terse
   • Cshow route instance <instance-name>
   • Dshow configuration routing-instances
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5. 9application · medium

   A service provider is designing a network to offer separate routing domains to multiple customers over a shared physical infrastructure. Each customer must have its own routing table, and customer routes must never be visible to other customers. The provider also needs to maintain its own global routing table for the backbone. Which approach should the engineer take?

   • AConfigure one routing instance of type forwarding for each customer and one for the backbone.
   • BUse a single routing instance of type vrf for all customers and rely on policy to isolate routes.
   • CConfigure a single routing instance of type virtual-router and assign all customer interfaces to it.
   • DConfigure a separate routing instance of type virtual-router for each customer, and keep the backbone in the default routing instance.
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6. 10foundation · easy

   How are routing tables isolated between routing instances in Junos OS?

   • ARouting tables are isolated by using separate physical routers
   • BAll instances share a single routing table but use different route distinguishers
   • CEach instance has its own routing table with a unique name, such as instance-name.inet.0
   • DRouting tables are isolated by assigning different autonomous system numbers
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