Graceful Restart (GR) JN0-364 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A network engineer is configuring OSPF graceful restart on a Junos router that will act as a helper for a neighboring router. The engineer wants to ensure that the helper does not terminate the adjacency if the restarting router takes longer than the standard grace period to recover. What should the engineer configure?

   • AIncrease the restart interval in the OSPF graceful restart configuration
   • BEnable nonstop routing (NSR) on the helper router
   • CSet the OSPF dead interval to a higher value
   • DDisable OSPF graceful restart helper mode on the helper router
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which statement correctly describes the role of the restarting router in graceful restart?

   • AIt shuts down all interfaces to prevent loops during the restart
   • BIt continues to forward traffic using its forwarding table while its control plane restarts
   • CIt sends a message to all neighbors to immediately recompute routes
   • DIt relies on the helper router to forward all traffic during the restart
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   How does graceful restart interact with nonstop active routing (NSR) on Junos?

   • AGR is only used when NSR is disabled and the router restarts completely
   • BGR is used to synchronize the forwarding table between the primary and backup routing processes
   • CGR and NSR are mutually exclusive and cannot be enabled together
   • DNSR provides a backup routing process, while GR is used for protocols that do not support NSR
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A service provider is upgrading the software on a core OSPF router. The router supports graceful restart and will act as the restarting router. During the upgrade, the router's control plane will restart, but the forwarding plane will continue to forward traffic. What must the neighboring routers support to ensure that OSPF adjacencies are maintained and traffic is not disrupted during the restart?

   • AOSPF protocol extensions for traffic engineering
   • BBidirectional forwarding detection (BFD)
   • CNonstop active routing (NSR)
   • DOSPF graceful restart helper mode
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   Which statement correctly describes the role of a helper router in RSVP graceful restart?

   • AIt continues to forward traffic on existing LSPs and refreshes RSVP state on behalf of the restarting router
   • BIt requires explicit configuration to act as a helper for RSVP GR
   • CIt immediately tears down all LSPs when it detects a restart
   • DIt only supports helper mode for point-to-point LSPs
   Reveal Solution Discussion Select an answer first