Latest CCNA 220-120 Real Exam Download 61-70

By | July 27, 2013



Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN?


A.      pingaddress

B.      tracertaddress

C.      tracerouteaddress

D.      arpaddress


Correct Answer: A




Based on the network shown in the graphic. Which option contains both the potential networking problem and the protocol or setting that should be used to prevent the problem?




A.      routing loops, hold down timers

B.      switching loops, split horizon

C.      routing loops, split horizon

D.      switching loops, VTP

E.       routing loops, STP

F.       switching loops, STP


Correct Answer: F




Refer to the exhibit. Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.)




A.      Host E and host F use the same IP gateway address.

B.      Router1 and Switch2 should be connected via a crossover cable.

C.      Router1 will not play a role in communications between host A and host D.

D.      The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.

E.       Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.

F.       The FastEthernet 0/0 interface on Router1 and the FastEthernet 0/1 interface on Switch2 trunk ports must be configured using the same encapsulation type.


Correct Answer: DF




Which two of these are characteristics of the 802.1Q protocol? (Choose two.)


A.      It is used exclusively for tagging VLAN frames and does not address network reconvergence following switched network topology changes.

B.      It modifies the 802.3 frame header, and thus requires that the FCS be recomputed.

C.      It is a Layer 2 messaging protocol which maintains VLAN configurations across networks.

D.      It includes an 8-bit field which specifies the priority of a frame.

E.       It is a trunking protocol capable of carrying untagged frames.


Correct Answer: BE




Refer to the exhibit. Each of these four switches has been configured with a hostname, as well as being configured to run RSTP. No other configuration changes have been made. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.)




A.      SwitchA, Fa0/2, designated

B.      SwitchA, Fa0/1, root

C.      SwitchB, Gi0/2, root

D.      SwitchB, Gi0/1, designated

E.       SwitchC, Fa0/2, root

F.       SwitchD, Gi0/2, root


Correct Answer: ABF




Refer to the exhibit. The network administrator normally establishes a Telnet session with the switch from host A. However, host A is unavailable. The administrator’s attempt to telnet to the switch from host B fails, but pings to the other two hosts are successful. What is the issue?




A.      Host B and the switch need to be in the same subnet.

B.      The switch interface connected to the router is down.

C.      Host B needs to be assigned an IP address in VLAN 1.

D.      The switch needs an appropriate default gateway assigned.

E.       The switch interfaces need the appropriate IP addresses assigned.


Correct Answer: D




Refer to the exhibit. Which switch provides the spanning-tree designated port role for the network segment that services the printers?




A.      Switch1

B.      Switch2

C.      Switch3

D.      Switch4


Correct Answer: C




What is one benefit of PVST+?


A.      PVST+ supports Layer 3 load balancing without loops.

B.      PVST+ reduces the CPU cycles for all the switches in the network.

C.      PVST+ allows the root switch location to be optimized per VLAN.

D.      PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.


Correct Answer: C




Which are valid modes for a switch port used as a VLAN trunk? (Choose three.)


A.      transparent

B.      auto

C.      on

D.      desirable

E.       blocking

F.       forwarding


Correct Answer: BCD




Refer to Exhibit. How many broadcast domains are shown in the graphic assuming only the default VLAN is configured on the switches?




A.      one

B.      two

C.      six

D.      twelve


Correct Answer: A

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