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【单选题】

The router SIS-R has been configured in a CIS network. As a network administrator, you were required to enable MPLS on that router.<br /> Which of the following description is making sense on the basis of the output information?（）<br /> <img src="https://nimg.ppkao.com/2018-07/yuanhao/2018073114494184415.jpg?sign=fcfd84a37c9e2fef96848dc01dfcf661&t=62d4a9c1" />

A、CEF switching is only needed to forward labeled packets.

B、CEF switching is needed on both ingress and egress interfaces on which MPLS is enabled.

C、Interface-level CEF switching is needed only on egress interfaces that are sending IP packets on which the egress LSR performs the label imposition process.

D、Interface-level CEF switching is needed only on ingress interfaces that are receiving IP packets on which the ingress LSR performs the label imposition process.

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更多“ The router SIS-R has been configured in a CIS network. As a network administrator, you were required to enable MPLS on that router.<br /> Which of the following description is making sense on the basis of the output information?（）<br /> <img src="https://nimg.ppkao.com/2018-07/yuanhao/2018073114494184415.jpg?sign=fcfd84a37c9e2fef96848dc01dfcf661&t=62d4a9c1" />”相关的问题
第1题
[单选题] For the accompanying router output, which of the following statements describes the stat e that neighbor 172.16.254.3 is in?（）

A、The router will not accept connections from the peer.  B、BGP can exchange routing information in this state.  C、The router is listening on its server port for connection requests from the peer.  D、The router ha s sent out an active TCP connection request to the peer.  

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第2题
[单选题] 当现场变送器信号同时用于SIS、DCS时，（）。

A、当现场变送器信号同时用于SIS、DCS时，应先接到DCS系统后接到SIS系统  B、当现场变送器信号同时用于SIS、DCS时，应先接到SIS系统后接到DCS系统  C、当现场变送器信号同时用于SIS、DCS时，应同时接到SIS系统和DCS系统  D、当现场变送器信号同时用于SIS、DCS时，接到SIS系统和DCS系统次序不做要求  

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第3题
[单选题] The router receives a login request from a PPP over ATM client and examines the domain map for the client's domain. The router finds no entries currently configured within the domain map. What does the router do with the login request?（）

A、The router rejects it.  B、The router tunnels it via L2TP.  C、The router authenticates it locally.  D、The default virtual router authenticates it.  

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第4题
[] Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）

A、A. the router with the lowest priority  B、B. the router with the highest priority  C、C. the router with the highest System ID  D、D. the router with the highest IP address  

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第5题
[单选题] Refer to the exhibit.  Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）

A、Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of master virtual router.  B、Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， it will regain the master virtual router role.  C、Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of master virtual router.  D、Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， it will regain the master virtual router role.  

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第6题
[] Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（） Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）

A、A.Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of master virtual route  B、B.Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， it will regain the master virtual router role  C、C.Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of master virtual router.  D、D.Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， it will regain the master virtual router role  

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第7题
[单选题] Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the  roles of the master virtual router and the backup virtual router？（）

A、 Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails，  Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of  master virtual router.  B、 Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails，  Router B will become the master virtual router. When Router A recovers， it will regain the master virtual  router role.  C、 Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails，  Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of  master virtual router.  D、 Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails，  Router A will become the master virtual router. When Router B recovers， it will regain the master virtual  router role.  

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第8题
[] Refer to the exhibit.  Which Virtual Router Redundancy Protocol （VRRP） statement is true about  the roles of the master virtual router and the backup virtual router？（） Refer to the exhibit.  Which Virtual Router Redundancy Protocol （VRRP） statement is true about  the roles of the master virtual router and the backup virtual router？（）

A、A. Router A is the master virtual router， and Router B is the backup virtual router. When Router A  fails， Router B will become the master virtual router. When Router A recovers， Router B will  maintain the role of master virtual router.  B、B. Router B is the master virtual router， and Router A is the backup virtual router. When Router B  fails， Router A will become the master virtual router. When Router B recovers， it will regain the  master virtual router role.  C、C. Router A is the master virtual router， and Router B is the backup virtual router. When Router A  fails， Router B will become the master virtual router. When Router A recovers， it will regain the  master virtual router role.  D、D. Router B is the master virtual router， and Router A is the backup virtual router. When Router B  fails， Router A will become the master virtual router. When Router B recovers， Router A will  maintain the role of master virtual router.  

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第9题
[单选题] Refer to the exhibit The neighbor 10.1.1.1 weight 200 BGP configuration command has been configured on router A. What will be the result of this configuration? （）

A、Router A will prefer the path through router B for network 172.20.0.0  B、Router A will prefer the path through router C for network 172.20.0.0  C、Packets from router D will prefer the path through router B for networks advertised by router A  D、Packets from r outer D will prefer the path through router C for networks advertised by router A  

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