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单选题
How is an RSVP resv message sent back to the ingress router?（）
A
reverse path of the RRO
B
least cost to the ingress router
C
shortest path to the egress router
D
reverse path of the path vector TLV
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How is an RSVP resv message sent back to the ingress router?()
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What is the term "ordered control" mean regarding how MPLS LSPs are established?()
A. establish starting at the egress router going back to the ingress routerB. establish starting at the ingress router going downstream to the egress routerC. establish when a router learns of a new prefixD. establish when the path correctly matches the reverse path forwarding check
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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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Refer to the exhibit. EIGRP is configured on all routers in the network. On a basis of the show ip eigrp topology output provided, what conclusion can be deri ved? ()
A.Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out inquiring for a second successor to network 10.6.1.0/24B.Router R1 can send traffic destined for network 10.6.1.0/24 out of interface FastEthernet0/0C.Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out before it declares the neighbor unreachableD.Router R1 is waiting for a reply from the neighbor 10.1.2.1 in response to the query sent out about network 10 .6.1.0/24
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A network administrator enters the following command on a router: logging trap 3. What are three message types that will be sent to the Syslog server? ()
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What is the first thing that happens when IPv6 is enabled on an interface on a host？（）A、A router solicitation is sent on that interface.B、There is a duplicate address detection on the host interface.C、The link local address is assigned on the host interface.D、A neighbor redirect message is sent on the host interface.
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A network administrator enters the following command on a router: logging trap 3. What are three message types that will be sent to the Syslog server? （）A、informationalB、emergencyC、warningD、criticalE、debugF、error
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How does an IPv6 router deal with a packet that is larger than the outgoing interface MTU？（）A、It will fragment the packet at Layer 2.B、It will fragment the packet at Layer 3.C、It will drop the packet and send an ICMPv6 message "packet too big" back to the source.D、It will drop the packet.
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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
考题
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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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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Which message type is constructed and sent from an MSDP router to its MSDP peers when it receives a PIM register message （knowing that the MSDP router is also configured as an RP for the PIM domain）？（）A、Source-Active MessageB、PIM JoinC、PIM HelloD、MSDP Register
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Which of these statements about PIM join messages in classic PIM-SM is correct？（）A、PIM join messages are sent every 60 seconds to refresh the upstream router’s mroute state for the multicast tree.B、Routers send a PIM join acknowledgement in response to each PIM join message received from a downstream router.C、PIM join messages are only sent when the multicast distribution tree is first being established.D、PIM join messages are sent every three minutes to refresh the upstream router’s mroute state for the multicast tree.
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What is the optimize timer on an RSVP-signaled Label-Switched Path （LSP）？（）A、the time it takes to identify the optimal path for the LSPB、the interval at which the ingress router recalculates the LSP’s pathC、the time the ingress router takes to establish the primary pathD、the maximum number of times the ingress router tries to establish the primary path
考题
What is the optimize timer on an RSVP-signaled Label-Switched Path (LSP)?（）A、The time it takes to identify the optimal path for the LSP.B、The interval at which the ingress router recalculates the LSP's path.C、The time the ingress router takes to establish the primary path.D、The maximum number of times the ingress router tries to establish the primary path.
考题
In BGP graceful restart, how does a peer router indicate the end of a route exchange?（）A、an open message with the E bit setB、an update message with the E bit setC、an open message with an end-of-RIB markerD、an update message with an end-of-RIB marker
考题
In BGP graceful restart， how does a peer router indicate the end of a route exchange？（）A、An open message with the E bit set.B、An update message with the E bit set.C、An open message with an end-of-RIB marker.D、An update message with an end-of-RIB marker.
考题
单选题How does an IPv6 router deal with a packet that is larger than the outgoing interface MTU？（）A
It will fragment the packet at Layer 2.B
It will fragment the packet at Layer 3.C
It will drop the packet and send an ICMPv6 message packet too big back to the source.D
It will drop the packet.
考题
单选题How is an RSVP resv message sent back to the ingress router？（）A
reverse path of the RROB
least cost to the ingress routerC
shortest path to the egress routerD
reverse path of the path vector TLV
考题
单选题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.
考题
单选题In BGP graceful restart, how does a peer router indicate the end of a route exchange?（）A
an open message with the E bit setB
an update message with the E bit setC
an open message with an end-of-RIB markerD
an update message with an end-of-RIB marker
考题
单选题What is the optimize timer on an RSVP-signaled Label-Switched Path (LSP)?（）A
The time it takes to identify the optimal path for the LSP.B
The interval at which the ingress router recalculates the LSP's path.C
The time the ingress router takes to establish the primary path.D
The maximum number of times the ingress router tries to establish the primary path.
考题
单选题What is the term "ordered control" mean regarding how MPLS LSPs are established?（）A
establish starting at the egress router going back to the ingress routerB
establish starting at the ingress router going downstream to the egress routerC
establish when a router learns of a new prefixD
establish when the path correctly matches the reverse path forwarding check
考题
单选题What is the optimize timer on an RSVP-signaled Label-Switched Path （LSP）？（）A
the time it takes to identify the optimal path for the LSPB
the interval at which the ingress router recalculates the LSP’s pathC
the time the ingress router takes to establish the primary pathD
the maximum number of times the ingress router tries to establish the primary path
考题
多选题A network administrator enters the following command on a router: logging trap 3. What are three message types that will be sent to the Syslog server? （）AinformationalBemergencyCwarningDcriticalEdebugFerror
考题
单选题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
考题
单选题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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