单项选择题

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

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单项选择题Given the following LSP configuration， which statement is true？（） label-switched-pathlsp-xyz { to 10.2000.1.1； primarypath1； secondarypath2； secondarypath3； no-cspf； } pathpath1 { 10.200.10.1 strict； } pathpath2 { 10.200.20.1 strict； } pathpath3 { 10.200.30.1loose }

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.

单项选择题IntowhichprotocolareLDPhellomessagesencapsulated？（）

A.IP
B.TCP
C.UDP
D.MPLS

单项选择题Which represents a correct PE-PE BGP configuration for an L3 VPN？（）

A.A
B.B
C.C
D.D

单项选择题InJUNOSsoftware，whatisrequiredtoredistributeRIProutesintoOSPF？（）

A.Apply an export policy in RIP
B.Apply an import policy in RIP
C.Apply an export policy in OSPF
D.Apply an import policy in OSPF

单项选择题WhichLSAistheType10？（）

A.Router LSA
B.Opaque LSA
C.AS attributes LSA
D.ASBR summary LSA
E.Network summary LSA