Latest Cisco 100-101 ICND1 Real Exam Download 271-280

By | August 16, 2013



Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?


A.       802.3ad

B.       802.1w

C.       802.1Q

D.       802.1d


Correct Answer: C




Which command enhances the 802.1D convergence time on ports that are connected to hosts?


A.       spanning-tree backbonefast

B.       spanning-tree uplinkfast

C.       spanning-tree portfast

D.       spanning-tree cost512


Correct Answer: C




Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch? (Choose two)


A.  SW1# show swithport port-security interface FastEthernet 0/12

B.  SW1# show swithport port-secure interface FastEthernet 0/12

C.  SW1# show port-security interface FastEthernet 0/12

D.  SW1# show running-config


Correct Answer: CD




Why will a switch never learn a broadcast address?


A.       Broadcast frames are never sent to switches.

B.       Broadcast addresses use an incorrect format for the switching table.

C.       A broadcast address will never be the source address of a frame.

D.       Broadcasts only use network layer addressing.

E.        A broadcast frame is never forwarded by a switch.


Correct Answer: C












A technician has installed Switch B and needs to configure it for remote access from the management workstation connected Switch A. Which set of commands is required to accomplish this task?




A.     SwitchB(config)#interface FastEthernet 0/1

SwitchB(config)#ip address

SwitchB(config)#no shutdown


B.     SwitchB(config)#ip default-gateway

SwitchB(config)#interface vlan 1

SwitchB(config)#ip address

SwitchB(config)#no shutdown


C.     SwitchB(config)#interface vlan 1

SwitchB(config)#ip address

SwitchB(config)#ip default-gateway

SwitchB(config)#no shutdown


D.     SwitchB(config)#ip default-network

SwitchB(config)#interface vlan 1

SwitchB(config)#ip address

SwitchB(config)#no shutdown


Correct Answer: B




Which three statements about RSTP are true?


A.     RSTP significantly reduces topology reconverting time after link failure.

B.     RSTP expands the STP port roles by adding the alternate and backup roles.

C.     RSTP port states are blocking, discarding, learning and forwarding.

D.     RSTP also uses the STP proposal-agreement sequence.

E.      RSTP uses the same timer-based process as STP on point-to-point links.

F.      RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.


Correct Answer: ABF



What value is primarily used to determine which port becomes the root port on each non-root switch in a spanning-tree topology?


A.       lowest port MAC address

B.       port priority number and MAC address

C.       VTP revision number

D.       highest port priority number

E.        path cost


Correct Answer: E




Which two states are the port states when RSTP has converged? (Choose two)


A.        blocking

B.        learning

C.        disabled

D.        forwarding

E.         listening


Correct Answer: AD




Which command enables RSTP on a switch?


A.       spanning-tree mode rapid-pvst

B.       spanning-tree uplinkfast

C.       spanning-tree backbonefast

D.       spanning-tree mode pvst


Correct Answer: A




What is one benefit of PVST+?


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

B.  PVST+ automatically selects the root bridge location, to provide optimization.

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

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


Correct Answer: C



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