Routing and Forwarding High Availability JN0-352 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which Junos configuration statement enables graceful restart for all supported routing protocols?

   • Aset routing-options graceful-restart
   • Bset protocols ospf graceful-restart
   • Cset chassis redundancy graceful-restart
   • Dset system services graceful-restart
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2. 12foundation · easy

   During a graceful restart, what does the restarting router do with its forwarding table?

   • AIt continues to forward packets using the existing forwarding table entries
   • BIt stops forwarding all traffic until the routing process is fully restarted
   • CIt clears the forwarding table and rebuilds it from the routing protocol updates
   • DIt sends all packets to the backup Routing Engine for processing
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4. 13application · medium

   Your network has a mix of Juniper and third-party routers. A neighboring third-party router is performing a graceful restart of OSPF. Your Juniper router is receiving the Graceful Restart (GR) capable flag in the OSPF hello packets. What is the default behavior of your Juniper router in this situation?

   • AIt acts as a helper and continues to advertise the neighbor's routes during the restart period.
   • BIt ignores the GR flag and treats the neighbor as a normal OSPF router with no special handling.
   • CIt immediately tears down the OSPF adjacency and recomputes the shortest path first (SPF) algorithm.
   • DIt sends a request to the neighbor to restart the OSPF process to re-establish the adjacency.
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5. 14expert · hard

   You are designing a high-availability solution for a dual-RE router that will be used as a data center gateway. The router will run BGP, OSPF, and will also be used for Layer 2 bridging. You want to ensure that a Routing Engine switchover is completely transparent to all neighboring devices and that no traffic is disrupted. Which combination of features is required?

   • AGRES and graceful restart for all protocols.
   • BNSR and NSB only.
   • CGRES, NSR, and NSB.
   • DGRES and NSB only.
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6. 15foundation · easy

   What is the primary purpose of Graceful Routing Engine Switchover (GRES) in Junos?

   • ATo maintain Layer 2 forwarding state during a switchover
   • BTo allow the routing protocol process to restart without dropping adjacencies
   • CTo provide a seamless switchover between the active and backup Routing Engines without interrupting forwarding
   • DTo synchronize the routing table between Routing Engines continuously
   Reveal Solution Discussion Select an answer first