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． 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．

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．

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

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 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

A network administrator is configuring ACLs on a cisco router,to allow traffic from hosts on networks 192．168．146．0,192．168．147．0,192．168．148．0and192．168．149．0 only．Which two ACL statements when combined are the best for accomplishing the task? access-list 10 permit ip 192．168．147．0 0．0．0．255．255 access-list 10 permit ip 192．168．149．0 0．0．0．255．255 access-list 10 permit ip 192．168．146．0 0．0．0．0．255 access-list 10 permit ip 192．168．146．0 0．0．0．1．255 access-list 10 permit ip 192．168．148．0 0．0．0．1．255

Which can be done to secure the virtual terminal interfaces on a router? Administratively shut down the interfaces． Physically secure the interfaces． Configure a virtual terminal password and login process． Enter an access list and apply it to the terminal interfaces using the access-class command． Create an access list and apply it to the terminal interfaces using the access-group command．

Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch? SW1#show swithport port-security interface FastEthernet 0/12 SW1# show swithport port-secure interface FastEthernet 0/12 SW1# show port-secure interface FastEthernet 0/12 SW1#show running-config SW1#show port-security interface FastEthernet 0/12

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

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．

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．

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．

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

Refer to the exhibit．The following commands are executed on interface fa0/1 of 2950Switch． 2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1 The Ethernet frame that is shown arrives on interface fa0/1． What two functions will occur when this frame is received by 2950Switch? [*] The MAC address table will now have an additional entry of fa0/1 FFFF．FFFF．FFFF． Only host A will be allowed to transmit frames on fa0/1． This frame will be discarded when it is received by 2950Switch． All frames arriving on 2950Switch with a destination of 0000．00aa．aaaa will be forwarded out fa0/1． Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1．

Which router IOS commands can be used to troubleshoot LAN connectivity problems? ping tracert ipconfig show ip route show interfaces