思科认证640-802模拟试卷20 - 众享搜题网

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Refer to the exhibit． Which statement describes DLCI 17? [*] DLCI 17 describes the ISDN circuit between R2 and R3． DLCI 17 describes a PVC on R2． It cannot be used on R3 or R1． DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3． DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider．

What is the result of issuing the frame-relay map ip 192．168．1．2 202 broadcast command? defines the source IP address that is used in all broadcast packets on DLCI 202 defines the DLCI that is used for all packets that are sent to the 192．168．1．2 IP address defines the destination IP address that is used in all broadcast packets on DLCI 202 defines the DLCI on which packets from the 192．168．1．2 IP address are received

Which command can be used to verify the DLCI destination address in a Frame Relay static configuration? show frame-relay end-to-end show frame-relay map show frame-relay lmi show frame-relay pvc

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? [*] The path of the packets will be R3 to R2 to R1． The path of the packets will be R3 to R1 to R2． The path of the packets will be both R3 to R2 to R1 and R3 to R1． The path of the packets will be R3 to R1

Refer to the exhibit． In the Frame Relay network, which ip address would be assigned to the interfaces with point-to-poin PVCs? [*] DLCI 16:192．168．10．1/24 DLCI 17:192．168．10．2/24 DLCI 99:192．168．10．3/24 DLCI 28:192．168．10．4/24 DLCI 16:192．168．10．1/24 DLCI 17:192．168．11．1/24 DLCI 99:192．168．10．2/24 DLCI 28:192．168．11．2/24 DLCI 16:192．168．10．1/24 DLCI 17:192．168．11．1/24 DLCI 99:192．168．12．1/24 DLCI 28:192．168．13．1/24 DLCI 16:192．168．10．1/24 DLCI 17:192．168．10．1/24 DLCI 99:192．168．10．2/24 DLCI 28:192．168．10．3/24

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? [*] 192．168．1．56/27 192．168．1．64/26 192．168．1．64/27 192．168．1．56/26

A network administrator needs to allow only one Telnet connection to a router． For anyone viewing the confguration and issuing the show run command, the password for Telnet access should be encrypted．Which set of commands will accomplish this task? service password-encryption access-list 1 permit 192．168．1．0 0．0．0．255 line vty 0 4 login password cisco access-class 1 enable password secret line vty 0 login password cisco service password-encryption line vty 1 login password cisco service password-encryption line vty 0 4 login password cisco

Refer to the exhibit． When running OSPF, What would cause router A not to form an adjacency with router B? [*] The loopback addresses are on different subnets． The value of the dead timers on the router are different． Route summarization is enabled on both routers． The process indentifier on router A is different than the process identifier on router

Which set of commands is recommended to prevent the use of a hub in the access layer? switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1 switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1 switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1 switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1

What is known as “one-to-nearest“ addressing in IPv6? global unicast anycast multicast unspecified address

What is the first 24 bits in a MAC address called? NIC BIA OUI VAI

Which PPP subprotocol negotiates authentication options? NCP LCP ISDN DLCI SLIP

What is the purpose of the inverse ARP? to map a known DLCI to an IP address to map a known IP address to a MAC address to map known SPID to a MACaddress to map a known DLCI to a MAC address to map a known IP address to a SPID．

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． incompatible IP address insufficient bandwidth incorrect subnet mask incompatible encapsulation link reliability too low

How does using the service password encryption command on a router provide additional security? by encrypting all passwords passing through the router by encrypting passwords in the plain text configuration file by requiring entry of encrypted passwords for access to the device by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges by automatically suggesting encrypted passwords for use in configuring the router

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? [*] VLANs have not been created yet． An IP address must be configured for the port． The port is currently configured for access mode． The correct encapsulation type has not been configured． The no shutdown command has not been entered for the port．

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? the OSPF route the EIGRP route the RIPv2 route all three routes the OSPF and RIPv2 routes

Refer to the exhibit．The speed of all serial links is E1 and the speed of the all Ethernet links is 100Mb/s．A static route will be established on the Manchester router to the direct traffic toward the internet over the most direct path available．What configuration on the Manchester router will establish a router toward the internet for traffic that originates from workstation on the Manchester LAN? [*] ip route 0．0．0．0 255．255．255．0 172．16．100．2 ip route 0．0．0．0 255．255．255．252 128．107．1．1 ip route 0．0．0．0 0．0．0．0 128．107．1．1 ip route 0．0．0．0 0．0．0．0 172．16．100．1 ip route 0.0.0.0 0.0.0.0 172.16.100.2

Refer to the exhibit． The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations． What is the simplest way to accomplish this? [*] Configure a dynamic routing protocol on London to advertise all routes to Manchester． Configure a dynamic routing protocol on London to advertise summarized routes to Manchester． Configure a dynamic routing protocol on Manchester to advertise a default route to the London router． Configure a static default route on London with a next hop of 10．1．1．1． Configure a static route on London to direct all traffic destined for 172．16．0．0/22 to 10．1．1．2．

What is the effect of using the service password-encryption command? nly passwords configured after the command has been entered will be encrypted． Only the enable password will be encrypted． Only the enable secret password will be encrypted It will encrypt the secret password and remove the enable secret password from the configuration． It will encrypt all current and future passwords．

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