Which statements are true about EIGRP ...

多项选择题Which statements are true about EIGRP successor routes?（）

A. A successor route is used by EIGRP to forward traffic to a destination.
B. Successor routes are saved in the topology table to be used if the primary route fails.
C. Successor routes are flagged as "active" in the routing table.
D. A successor route may be backed up by a feasible successor route.
E. Successor routes are stored in the neighbor table following the discovery process.
F. Successors are not used in EIGRP.

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1.单项选择题You are troubleshooting a frame relay connection and wish to view the LMI traffic stats. Which command should you issue?（）

A. Show interface lmi
B. Show frame-relay lmi
C. Show interface frame-relay
D. Debug frame-relay interface.

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2.多项选择题A new frame relay connection is being brought up. Which of the following are frame relay LMI type options that can be configured on this new link?（）

A. EIA/TIA
B. Q.932
C. Q.933A
D. IEEE
E. Cisco
F. Annex D

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3.单项选择题In a lab, two routers are connected directly together using serial interfaces in a back-to-back configuration. No external DCE devices are being used. What additional command is needed to bring this link up?（）

A.serialup
B.clock
C.clockrate
D.dcerate
E.dterate

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4.单项选择题You have just obtained a modular Cisco router with 2 serial connections and a BRI/U interface. What other physical piece of hardware is required in order to establish an ISDN connection?（）

A. Nothing. The router is already suitable.
B. A BRI WAN interface in the router.
C. An external NT1 to terminate the local loop.
D. A TA/NT1 device on the router.

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5.多项选择题Which of the following can LCP successfully negotiate during the establishment of a PPP connection?（）

A. Q.931
B. IPCP
C. multilink
D. CHAP
E. callback

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6.多项选择题You are about to configure PPP n the interface of a Cisco router. Which authentication methods could you use?（）

A.SSL
B.SLIP
C.PAP
D.LAPB
E.CHAP
F.VNP

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7.单项选择题Which of the following Frame-Relay encapsulation commands would you use, if you had to connect your Cisco router to a non-Cisco router?（）

A. TestKRouter(config-if)# Encapsulation frame-relay dot1q
B. TestKRouter(config-if)# Encapsulation frame-relay aal5snap
C. TestKRouter(config-if)# Encapsulation frame-relay ietf
D. TestKRouter(config-if)# Encapsulation frame-relay isl
E. None of the above

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8.单项选择题A new frame-relay network is being implemented and inverse ARP does not appear to be operating correctly. Which alternative command can be used to provide connectivity?（）

A. frame-relay arp
B. frame-relay map
C. frame-relay interface-dlci
D. frame-relay lmi-type
E. frame-relay pvc

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9.单项选择题When configuring Frame Relay using point-to-point subinterfaces, which of the following must not be configured?（）

A. The local DLCI on each subinterface of the Frame Relay.
B. The Frame Relay encapsulation on the physical interface.
C. An IP address on the physical interface.
D. The subinterface type as point-to-point

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10.多项选择题A network administrator has configured access list 172 to prevent Telnet and ICMP traffic from reaching a server with the address if 192.168.13.26. Which command can the administrator issue to verify that the access list is working properly?（）

A. Router# ping 192.168.13.26
B. Router# debug access-list 172
C. Router# show open ports 192.168.13.26
D. Router# show access-list
E. Router# show ip interface

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