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单选题
What is the default function of a secondary path in MPLS?（）
A
to act as an equal-cost path to the primary path
B
to enable another LSP for load balancing
C
to act as a diverse backup path to the primary path
D
to allow the use of explicit path selection via EROs
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考题
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
Given the following LSP configuration, which statement is true?（）label-switched-path lsp-xyz { to 10.200.1.1; primary path1; secondary path2; secondary path3; no-cspf; } path path1 { 10.200.10.1 strict; } path path2 { 10.200.20.1 strict; } path path3 { 10.200.30.1 loose; }A. The router will use path1 when it is available and stable.B. The router will use path3 when it is available and stable.C. The router will attempt to establish path2 only when path1 and path3 are down.D. The router will attempt to establish path1 only when path2 and path3 are down.
考题
What command will allow the operator to add the current working directory to the command search path?()
A. export PATH=pwdB. export PATH=$PWDC. export PATH=$PATH:pwdD. export PATH=$PATH:$PWD
考题
Which two statements about spanning tree path cost are true？（）A、The path cost can be changed for an interface using the spanning-tree cost commandB、The path cost can be changed for an interface using the stp path-cost commandC、The SPT default path cost depends on the interface speedD、The STP default path cost is similar for all interface
考题
What is the function of the command switchport trunk native vlan 999 on a？（）A、It designates VLAN 999 for untagged traffic.B、It blocks VLAN 999 traffic from passing on the trunk.C、It createsa VLAN 999 interface.D、It designates VLAN 999 as the default for all unkown tagged traffic.
考题
What protocol is used for Path Setup in MPLS traffic engineering？（）A、OSPFB、ISISC、BGPD、RSVPE、PIM
考题
What is the function of the command switchport trunk native vlan 999 on a switch?（）A、It designates VLAN 999 for untagged traffic.B、It blocks VLAN 999 traffic from passing on the trunk.C、It creates a VLAN 999 interface.D、It designates VLAN 999 as the default for all unkown tagged traffic.
考题
What IOS commands display MPLS label mapping on an LSR？（）A、Show mpls forwading-tableB、Show mpls ldp bindingsC、Show mpls ldp neighbor detailD、Show mpls ldp parametersE、Show mpls ldp discovery
考题
Which four services use the inner labels of an MPLS label stack？ （）A、MPLS VPNB、switching path in MPLS coreC、Cisco MPLS Traffic Engineering and Fast RerouteD、MPLS over ATME、VPN over Traffic Engineering coreF、any transport over MPLS
考题
What command will allow the operator to add the current working directory to the command search path?（）A、export PATH=pwdB、export PATH=$PWDC、export PATH=$PATH:pwdD、export PATH=$PATH:$PWD
考题
What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)A、to perform a label push operationB、to track the status of signaled LSPsC、to perform longest-match route lookupsD、to reserve resources, such as labels and path information
考题
What is the default function of a secondary path in MPLS?（）A、to act as an equal-cost path to the primary pathB、to enable another LSP for load balancingC、to act as a diverse backup path to the primary pathD、to allow the use of explicit path selection via EROs
考题
单选题What protocol is used for Path Setup in MPLS traffic engineering？（）A
OSPFB
ISISC
BGPD
RSVPE
PIM
考题
多选题Which two statements about spanning tree path cost are true？（）AThe path cost can be changed for an interface using the spanning-tree cost commandBThe path cost can be changed for an interface using the stp path-cost commandCThe SPT default path cost depends on the interface speedDThe STP default path cost is similar for all interface
考题
单选题In MPLS traffic engineering， which one of the following protocols is used for Path Setup？（）A
BGPB
OSPFC
ISISD
RSVP
考题
单选题Given the following LSP configuration, which statement is true?（）label-switched-path lsp-xyz { to 10.200.1.1; primary path1; secondary path2; secondary path3; no-cspf; } path path1 { 10.200.10.1 strict; } path path2 { 10.200.20.1 strict; } path path3 { 10.200.30.1 loose; }A
The router will use path1 when it is available and stable.B
The router will use path3 when it is available and stable.C
The router will attempt to establish path2 only when path1 and path3 are down.D
The router will attempt to establish path1 only when path2 and path3 are down.
考题
单选题What IOS commands display MPLS label mapping on an LSR？（）A
Show mpls forwading-tableB
Show mpls ldp bindingsC
Show mpls ldp neighbor detailD
Show mpls ldp parametersE
Show mpls ldp discovery
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 role of Forwarding Equivalence Class （FEC） in MPLS？（）A
FEC determines how IP packets are forwarded in MPLS LSP.B
FEC determines how to establish an LSP path.C
FEC determines how a group of IP packets are mapped to an LSP.D
FEC determines how MPLS labels are stacked in LSP.E
None of above.
考题
多选题What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)Ato perform a label push operationBto track the status of signaled LSPsCto perform longest-match route lookupsDto reserve resources, such as labels and path information
考题
单选题在MPLS中，LSP指的是：（）。A
Label Selection PairB
Label Switched PathC
Lighweight Signaling ProtocolD
Large Sampling Path
考题
单选题What best explains the BGP route-reflector function？（）A
BGP route-reflector should be in forwarding path of data coming from its clientsB
BGP route-reflector does not have to be in the forwarding path of data coming from its clientsC
BGP route-reflector will stop reflecting the routes if they’re not directly-connected clientsD
None of the above
考题
多选题Which four services use the inner labels of an MPLS label stack？ （）AMPLS VPNBswitching path in MPLS coreCCisco MPLS Traffic Engineering and Fast RerouteDMPLS over ATMEVPN over Traffic Engineering coreFany transport over MPLS
考题
单选题What is the default function of a secondary path in MPLS?（）A
to act as an equal-cost path to the primary pathB
to enable another LSP for load balancingC
to act as a diverse backup path to the primary pathD
to allow the use of explicit path selection via EROs
考题
单选题What is the main idea of this passage?A
The difference between the primary school and the secondary school.B
The method that pupils get help from the teachers.C
The personal development of the pupils in the secondary school.D
The function of the secondary school.
考题
单选题A SECONDARY function of a waste heat boiler is to （）.A
reduce engine exhaust noiseB
reduce engine back pressureC
increase engine cycle efficiencyD
increase turbocharger efficiency
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