思科认证640-802模拟试卷18

Which item represents the standard IP ACL? access-list 50 deny 192．168．1．1 0．0．0．255 access-list 110 permit ip any any access-list 2500 deny tcp any host 192．168．1．1 eq 22 access-list 101 deny tcp any host 192．168．1．1

Refer to the exhibit． Which of these statements correctly describes the state of the switch once the boot process has been completed? [*] As FastEthernet0/12 will be the last to come up, it will not be blocked by STP． Remote access management of this switch will not be possible without configuration change． More VLANs will need to be created for this switch． The switch will need a different IOS code in order to support VLANs and STP．

Refer to the exhibit． When running EIGRP, What is required for RouterA to exchange routing updates with RouterC? [*] As numbers must be changed to match on all the routers． Loopback interface must be configured so a DR is elected． The no auto-summary command is needed on Router A and Router D．

Refer to the exhibit,a network administrator cannot establish a telnet session with the indicated router．What is the cause of this failure? [*] A level 5 password is not set The vty password is missing The console password is missing An ACL is blocking Telnet access

A router has two FastEthernet interfaces and needs to connect to four vlans in the local network．How can you accomplish this task,using the fewest physical interfaces and without decreasing network performance? Add two more FastEthernet interfaces． Add a second router to handle the vlan traffic． Use a hub to connect the four vlans with a FastEthernet interface on router． Implement a router-on-a-stick configuration．

Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13． An 802．1Q trunk is configured between the two switches． On CAT1, VLAN 10 is chosen as native, but on CAT2 the native VLAN is not specified．What will happen in this scenario? 802．1Q giants frames could saturate the link． VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames． A native VLAN mismatch error message will appear． VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames．

Refer to the exhibit． Give this output for SwitchC, what should the network administrator’s next action be? [*] Check the trunk encapsulation mode for SwitchC’s fa0/1 port． Check the duplex mode for SwitchC’s fa0/1 port． Check the duplex mode for SwitchA’s fa0/2 port． Check the trunk encapsulation mode for SwitchA’s fa0/2 port．

VLAN 3 is not yet configured on your switch．What happens if you set the switchport access vlan 3 commmand interface configuration mode? The command is accepted and the respective VLAN is added to vlan dat． The command is rejected． The command is accepted and you must configure the VLAN manually． The port turns amber．

A network administrator is troubleshooing an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency． The retransmit interval and the queue counts for the adjacent routers also need to be checked． What command will display the required information? Router# show ip eigrp adjacency Router# show ip eigrp topology Router# show ip eigrp interfaces Router# show ip eigrp neighbors

Refer to the exibit ．An attempt to deny web access to a subnet blocks all traffic from the subnet．Which interface command immedicately removes the effect of ACL 102? [*] no ip access-group 102 in no ip access-group 102 out no ip access-list 102 in no ip access-class 102 out no ip access-class 102 in

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2． The routers cannot establish an adjacency relationship on their common Ethernet link． The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2． Based on the information in the graphic,what is the cause of this problem? [*] The OSPF area is not configured properly． The priority on R1 should be set higher． The cost on R1 should be set higher． The hello and dead timers are not configured properly． A backup designated router needs to be added to the network．

In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN? after broken links are re-established in an improperly implemented redundant topology when upper-layer protocols require high reliability during high traffic periods when a dual ring topology is in use

What will happen if a private IP address is assigned to a public interface connected to an ISP? Addresses in a private range will be not routed on the Internet backbone． Only the ISP router will have the capability to access the public network． The NAT process will be used to translate this address in a valid IP address． Several automated methods will be necessary on the private network． A conflict of IP addresses happens, because other public routers can use the same range．

Refer to the topology and router output shown in the exhibit． A technician is troubleshooting host connectivity issues on the switches． The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12． Hosts in the Admin VLAN are able to communicate． The port-to-VLAN assignments are identical on the two switches． What could be the problem? [*] The Fa0/1 port is not operational on one of the switches． The Link connecting the switches has not been configured as a trunk． At lease one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate． Port FastEthernet 0/1 needs to be configured as an access link on both switches． A router is required for hosts on Sw11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw12．

Refer to the exhibit． The Bigtime router is unable to authenticate to the Littletime router． What is the cause of the problem? [*] The usernames are incorrectly configured on the two routers． The passwords do not match on the two routers． CHAP authentication cannot be used on a serial interface． The routers cannot be connected from interface S0/0 to interface S0/0． With CHAP authentication, one router must authenticate to another router． The routers cannot be configured to authenticate to each other．

Refer to the exhibit． A network technician is asked to design a small network with redundancy． The exhibit represents this design, with all hosts configured in the same VLAN． What conclusions can be made about this design? [*] The design will function as intended Spanning-tree will need to be used． The router will not accept the addressing scheme． The connection between switches should be a trunk． The router interfaces must be encapsulated with the 802．1Q protocol．

When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL? show ip access-list show access-list list ip interface show interface show ip interface

Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU? BackboneFast UplinkFast Root Guard BPDU Guard BPDU Filter

A network administrator is trying to add a new router into an established OSPF network．The networks attached to the new router do not appear in the routing tables of the other OSPF routers．Given the information in the partial configuration shown below,what configuration error is causing this problem? Router(config)#router ospf 1 Router(config-router)#network 10．0．0．0 255．0．0．0 area 0 The process id is configured improperly The OSPF area is configured improperly The network wildcard mask is configured improperly The network number is configured improperly The AS is configured improperly

Users on the 172．17．22．0 network cannot reach the server located on the 172．31．5．0 network．The network administrator connected to console port,issued the show ip route command,and was able to ping the server．Based on the output of the show ip route command topology shown in the graphic,what is the cause of the failure? [*] IP routing is not enabled A static route is configured incorrectly The network has not fully converged The FastEthernet interface on Coffee is disabled The routing table on Coffee has not updated