单项选择题

A router has learned three possible routes that could b……

A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?（）

A.the OSPF route
B.the EIGRP route
C.the RIPv2 route
D.all three routes
E.the OSPF and RIPv2 routes

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单项选择题Refer to the exhibit.A new subnet with 60 hosts has been added to the network.Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses?（）

A.192.168.1.56/27
B.192.168.1.64/26
C.192.168.1.64/27
D.192.168.1.56/26

单项选择题Refer to the exhibit. Switch port FastEthernet 0 24 on AlSwitch1 will be used to create an IEEE 802.1Q- complaint trunk to another switch. Based on the output shown, What is the reason the trunk does not form, even thought the proper cabling has been attached?（）

A.VLANs have not been created yet
B.An IP address must be configured for the port
C.The port is currently configured for access mode
D.The correct encapsulation type has not been configured
E.The no shutdown command has not been entered for the port

单项选择题How does using the service password encryption command on a router provide additional security?（）

A.by encrypting all passwords passing through the router
B.by encrypting passwords in the plain text configuration file
C.by requiring entry of encrypted passwords for access to the device
D.by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
E.by automatically suggesting encrypted passwords for use in configuring the router

单项选择题Refer to the exhibit. The company uses EIGRP as the routing protocol. What path will packets take from a host on 192.168.10.192 26 network to a host on the LAN attached to router R1?（）

A.The path of the packets will be R3 to R2 to R1.
B.The path of the packets will be R3 to R1 to R2.
C.The path of the packets will be both R3 to R2 to R1 and R3 to R1.
D.The path of the packets will be R3 to R1

单项选择题Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated, but they are unable to communicate. The Atlanta router is known to have the correct configuration.Given the partial configurations, identify the fault on the Brevard router that is causing the lack of connectivity？（）

A.incompatible IP address
B.insufficient bandwidth
C.incorrect subnet mask
D.incompatible encapsulation
E.link reliability too low
F.IP/TCP closed