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试卷名称:思科认证640-802模拟试卷23

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The user of Host1 wants to ping the DSL modem/router at 192．168．1．254． Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do?

A．send a unicast ARP packet to the DSL modem/router

B．send unicast ICMP packets to the DSL modem/router

C．send Layer 3 broadcast packets to which the DSL modem/router responds

D．send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router

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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．

The user of Host1 wants to ping the DSL modem/router at 192．168．1．254． Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do? [*] send a unicast ARP packet to the DSL modem/router send unicast ICMP packets to the DSL modem/router send Layer 3 broadcast packets to which the DSL modem/router responds send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router

Refer to the exhibit． The network administrator has created a new VLAN on Switch1 and added host C and host D． The administrator has properly configured switch interfaces FastEthernet0/13 through FastEthernet0/24 to be members of the new VLAN． However, after the network administrator completed the configuration, host A could communicate with host B, but host A could not communicate with host C or host D． Which commands are required to resolve this problem? [*] Router(config)# interface fastethernet 0/1．3 Router(config-if)# encapsulation dot1q 3 Router(config-if)# ip address 192．168．3．1 255．255．255．0 Router(config)# router rip Router(config-router)# network 192．168．1．0 Router(config-router)# network 192．168．2．0 Router(config-router)# network 192．168．3．0 Switch1# vlan database Switch1(vlan)# vtp v2-mode Switch1(vlan)# vtp domain cisco Switch1(vlan)# vtp server Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk Switch1(config-if)# switchport trunk encapsulation isl

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Refer to the exhibit．If the devices produced the given output,what is the cause of the EtherChannel problem? [*] There is a speed mismatch between SW1’s Fa0/1 and SW2’s Fa0/1 interfaces． There is an MTU mismatch between SW1’s Fa0/1 and SW2’s Fa0/1 interfaces． There is an encapsulation mismatch between SW1’s Fa0/1 and SW2’s Fa0/1 interface． SW1’s Fa0/1 interface is administratively shut down．

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Refer to the exhibit． What is the most efficient summarization that R1 can use to advertise its networks to R2? [*] 172．1．0．0/22 172．1．0．0/21 172．1．4．0/22 172．1．4．0/24 172．1．5．0/24 172．1．6．0/24 172．1．7．0/24 172．1．4．0/25 172．1．4．128/25 172．1．5．0/24 172．1．6．0/24 172．1．7．0/24

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