单选题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 rout

题目

单选题

What is the function of the helper router during a restart event in OSPF?（）

Sends Rapid Hellos to the restarting router.

Maintains Adjancency with restarting router.

Sends periodic DD packets to the restarting router.

Floods Type 9 LSAs to all routers indicating a restarting event.

参考答案和解析

正确答案： D

解析：暂无解析

更多“单选题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 rout”相关问题

第1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2题

A networking device that sends packets to all connections is a:（）A、gateway.B、hub.C、switch.D、router.

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第3题

A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?（）A、It performs a label pop operation and an IP lookup.B、It performs a label swap operation and an IP lookup.C、It sends an error message toward the egress router.D、It sends an error message toward the ingress router.

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第4题

When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）A、The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.B、The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.C、The LSA is dropped and a message is sent to the transmitting router.D、The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.

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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 rout

题目

参考答案和解析

更多“单选题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 rout”相关问题

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