[Free] New Updated (October) Cisco 200-120 Real Exam 221-230




Refer to the exhibit. An administrator pings the default gateway at and sees the output as shown. At which OSI layer is the problem?




A.      data link layer

B.      application layer

C.      access layer

D.      session layer

E.       network layer


Correct Answer: E




Refer to the exhibit. Hosts in network are unable to reach hosts in network Based on the output from RouterA, what are two possible reasons for the failure?

(Choose two.)




A.      The cable that is connected to S0/0 on RouterA is faulty.

B.      Interface S0/0 on RouterB is administratively down.

C.      Interface S0/0 on RouterA is configured with an incorrect subnet mask.

D.      The IP address that is configured on S0/0 of RouterB is not in the correct subnet.

E.       Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.

F.       The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA.


Correct Answer: EF













Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)




A.      Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.

B.      Ensure that cables A and B are straight-through cables.

C.      Ensure cable A is plugged into a trunk port.

D.      Ensure the switch has power.

E.       Reboot all of the devices.

F.       Reseat all cables.


Correct Answer: BDF




Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.)


A.      ping

B.      tracert

C.      ipconfig

D.      show ip route

E.       winipcfg

F.       show interfaces


Correct Answer: ADF



Refer to the exhibit. The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems? (Choose two.)




A.      Configure the gateway on Host A as

B.      Configure the gateway on Host B as

C.      Configure the IP address of Host A as

D.      Configure the IP address of Host B as

E.       Configure the masks on both hosts to be

F.       Configure the masks on both hosts to be


Correct Answer: BD




Refer to the exhibit. A problem with network connectivity has been observed. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?




A.      Host B would not be able to access the server in VLAN9 until the cable is reconnected.

B.      Communication between VLAN3 and the other VLANs would be disabled.

C.      The transfer of files from Host B to the server in VLAN9 would be significantly slower.

D.      For less than a minute, Host B would not be able to access the server in VLAN9. Then normal network function would resume.


Correct Answer: D




Refer to the exhibit. HostA cannot ping HostB. Assuming routing is properly configured, what is the cause of this problem?




A.      HostA is not on the same subnet as its default gateway.

B.      The address of SwitchA is a subnet address.

C.      The Fa0/0 interface on RouterA is on a subnet that can’t be used.

D.      The serial interfaces of the routers are not on the same subnet.

E.       The Fa0/0 interface on RouterB is using a broadcast address.


Correct Answer: D







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?




A.      The OSPF area is not configured properly.

B.      The priority on R1 should be set higher.

C.      The cost on R1 should be set higher.

D.      The hello and dead timers are not configured properly.

E.       A backup designated router needs to be added to the network.

F.       The OSPF process ID numbers must match.


Correct Answer: D




In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?


A.      during high traffic periods

B.      after broken links are re-established

C.      when upper-layer protocols require high reliability

D.      in an improperly implemented redundant topology

E.       when a dual ring topology is in use


Correct Answer: D










Router>enable (Need to enter the password cisco)

Router#show running-config





Which will fix the issue and allow ONLY ping to work while keeping telnet disabled?


A.      Correctly assign an IP address to interface fa0/1.

B.      Change the ip access-group command on fa0/0 from “in* to “out.

C.      Remove access-group 106 in from interface fa0/0 and add access-group 115 in.

D.      Remove access-group 102 out from interface s0/0/0 and add access-group 114 in.

E.       Remove access-group 106 in from interface fa0/0 and add access-group 104 in.


Correct Answer: E


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