There is a mismatch in encapsulation types
The wrong type of cable is connected to the interface
The interface has been configured with the shutdown command
The interface is not receiving any keepalives
The interface needs to be configured as a DTE device
There is no encapsulation type configured
第1题：
Refer to the exhibit. ROUTE Enterprises has many stub networks in their enterprise network, such as router B and its associated network. EIGRP is to be implemented on router A so that neither the prefix for the S/0/0/0 interface nor the prefixes from router B appear in the routing tables for the router in the enterprise network. Which action will accomplish this goal?（）
A. Declare router B a stub router using the eigrp stub command.
B. Use the passive - interface command for interface Serial0/0/0.
C. Use a mask with the network command to exclude interface Serial0/0/0.
D. Implement a distribute list to exclude the link prefix from the routi ng updates.
第2题：
A.S1(config)# interface fastethernet 0/1S1(config - if)# ip helper - address 10.0.0.2
B.S1(config)# interface fastethernet 0/1 S1(config - if)# ip helper - address 20.0.0.1
C.R1(config)# interface fastethernet 0/0 R1(config - if)# ip help er - address 20.0.0.2R 1(config - if)# ip helper - address 20.0.0.3 R1(config - if)# ip helper - address 20.0.0.4 R1(config - if)# exit R1(config)# interface fastethernet 0/1 R1(config - if)# ip helper - address 10.0.0.1
D.R1(config)# interface fastethernet 0/0 R1 (config - if)# ip helper - address 20.0.0.1 R2(config)# interface fastethernet 0/0 R2(config - if)# ip helper - address 20.0.0.1 R3(config)# interface fastethernet 0/0 R3(config - if)# ip helper - address 20.0.0.1 R4(config)# interface fastethernet 0/0 R4(config - if)# ip helper - address 20.0.0.1
E.S1(config)# interface fastethernet 0/1 S1(config - if)# ip helper - address 10.0.0.2 R2(config)# interface fastethernet 0/0 R2(config - if)# ip helper - address 20.0.0.1 R3(config)# interface fastethernet 0/0 R3(config - if) # ip helper - address 20.0.0.1 R4(config)# interface fastethernet 0/0 R4(config - if)# ip helper - address 20.0.0.1
第3题：
下列哪些命令可以用来查看DDR端口（在端口 S1 上配置）信息？（ ） A、 show interface B、 show running-conting C、 show interface s1 D、 show diater interface s1
第4题：
A.There is a speed mismatch between SW1‘s Fa0/1 and SW2‘s Fa0/1 interfaces.
B.There is an MTU mismatch between SW1‘s Fa0/1 and SW2‘s Fa0/1 interfaces.
C.There is an encapsulation mismatch between SW1‘s Fa0/1 and SW2‘s Fa0/1 interface.
D.SW1‘s Fa0/1 interface is administratively shut down.
第5题：
Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?（）
A.Telnet to WANRouter and execute the command show interfaces S0/0
B.Telnet to WANRouter and execute the commandshow processes S0/0
C.Telnet to WANRouter and execute the command show running-configuration
D.Telnet to WANRouter and execute the command show controller S0/0
E.Physically examine the cable between WANRouter S0/0 and the DCE.
F.Establish a console sessionon WANRouter and execute the command show interfaces S0/0
第6题：
Refer to the exhibit.The actual speed of the serial links between R2 and R3 are 256 kb/s and 512k b/s respectively. When configuring EIGRP on routers R2 and R3, the network administrator configured the bandwidth of both serial interfaces to 512 kb/s. What will be the effect?（）
A. EIGRP will overutilize the 512 kb/s link.
B. The interface "delay" value used in the EIGRP metric calculation will be inaccurate on the 256k b/s serial interface.
C. The amount of bandwidth used for EIGRP routing protocol traffic on the 256 kb/s link can become excessive.
D. EIGRP can load balance between the two serial links only if the variance is set to 2 or higher.
E. Unequal cost load balancing will be disabled.
第7题：
A. Allows interfaces to share common IP addresses.
B. Allows an interface to remain up without the aid of keepalives.
C. Allows a router to send routing and not receive updates via that interface.
D. Allows a routing protocol to forward updates that is missing its IP address.
E. Allows a router to receive routing updates on an interface but not send updates via that interface.
第8题：
A. After the router ospf 10 and passive - interface s0/0 commands have been issued , the s0/0 interface will not send any OSPF updates, but will receive routing updates on that interface
B. When you use the passive - interface command with RIPv2, multicasts are sent out the specified interface
C. After the router rip and passive -interface s0/0 commands have been issued, the s0/0 interface will not send any RIP updates, but will receive routing updates on that interface
D. When you use the passive - interface command with EIGRP, hel lo messages are not sent out the specified interface
E. After the router eigrp 10 and passive - interface s0/0 commands have been issued, the s0/0 interface will not send any EIGRP updates, but will receive routing updates on that interface
F. When you use the passive - interface command with OSPF, hello messages are not sent out the specified interface
第9题：
A.The Seria l0/0interface is passing traffic.
B.The DLCI 100 was dynamic allyallocated by the router
C.The Seria l0/0 interf aceacquired the IP address of 172.16.3.1 from a DHCP server
D.The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud
E.The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP
第10题：
A.There is a mismatch in encapsulation types
B.The wrong type of cable is connected to the interface
C.The interface has been configured with the shutdown command
D.The interface is not receiving any keepalives
E.The interface needs to be configured as a DTE device
F.There is no encapsulation type configured