单选题In IS-IS, how long will the restart helper keep the restarting router in the up state?（）A until the hello dead timer expiresB until the restart duration timer expiresC until the restarting router sets the down bitD until the restart helper sends out th

题目

单选题

In IS-IS, how long will the restart helper keep the restarting router in the up state?（）

until the hello dead timer expires

until the restart duration timer expires

until the restarting router sets the down bit

until the restart helper sends out three CSNPs

更多“单选题In IS-IS, how long will the restart helper keep the restarting router in the up state?（）A until the hello dead timer expiresB until the restart duration timer expiresC until the restarting router sets the down bitD until the restart helper sends out th”相关问题

第1题

How does route poisoning work with holddown timers to prevent routing loops?（）A、Information learned from one source is not distributed back to that source.B、Routing updates from the poisoned source are ignored until a holddown timer expires.C、Failed routes are advertised with infinite metrics.D、New routing updates are ignored until the network has converged.E、A route is marked as unavailable when its time-to-live is exceeded.

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第2题

What are the two benefits of graceful restart？（）A、Graceful restart allows session information recovery without disruption to the network.B、A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kepton state information， which helps the failed node recover faster and does notaffect the current for wardtraffic.C、Graceful restart allows a node to recover state from its neighbor when there is no RP or before thedevice undergoes SSO.D、Graceful restart does not allow session information recovery.E、During a graceful restart， the router removes any stale prefixes after a timer for stale entries expires

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第3题

What is the purpose of the RSVP hello interval?（）A、It is the size of the RSVP hello packetB、It is how long it maintains RSVP neighborsC、It is the length of time between RSVP hello packetsD、It is how long the router waits before declaring a router to be down

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第4题

What is the function of the helper router during a restart event in OSPF?（）A、Sends Rapid Hellos to the restarting router.B、Maintains Adjancency with restarting router.C、Sends periodic DD packets to the restarting router.D、Floods Type 9 LSAs to all routers indicating a restarting event.

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第5题

In which two ways does the BGP graceful capability preserve prefix information during a restart？（）A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.C、The peer router sends an end-of-RIB message to the restarting router.D、The restarting router removes any stale prefixes after the timer for stale entries expires.E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.

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第6题

Within IS-IS, the restart helper performs which task?（）A、It sends CSNPs to the restarting router.B、It periodically sends TLV 211 to the restarting router.C、It informs other routers in the domain that a router has restarted.D、It tears down adjacency and sends its entire database after 30 seconds.

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第7题

In IS-IS， how does the restarting router inform its helpers that a restarts event occurred？（）A、Sending out a graceful restart PDUB、Sending an LSP that contains no TLVs.C、Sending out a restarts TLV with the RR bit set.D、Reflooding its LSP with a maximum sequence number.

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JN0-304

单选题In IS-IS, how long will the restart helper keep the restarting router in the up state?（）A until the hello dead timer expiresB until the restart duration timer expiresC until the restarting router sets the down bitD until the restart helper sends out th

题目

更多“单选题In IS-IS, how long will the restart helper keep the restarting router in the up state?（）A until the hello dead timer expiresB until the restart duration timer expiresC until the restarting router sets the down bitD until the restart helper sends out th”相关问题

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