200-120 CCNA Online Test-Cisco Certified Network Associate Exam

At present, Our 200-120 CCNA online test are the perfect way to brush up your skills, Take our 200-120 CCNA online test for a run-through of commonly asked questions. You will get incredibly detailed scoring results at the end of your 200-120 CCNA online test to help you identify your strenghts and weaknesses.

Our 200-120 CCNA online test only offer 20 questions, it contains single choice and multiple choice,5 points for questions you get correct ,if you answer correctly part of multiple choice, you can get part of 5 points.

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Which port state is introduced by Rapid-PVST?

learning

listening

discarding

forwarding

VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan 3 command in interface configuration mode?

The command is rejected.

The port turns amber.

The command is accepted and the respective VLAN is added to vlan. dat.

The command is accepted and you must configure the VLAN manually.

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

path cost

lowest port MAC address

VTP revision number

highest port priority number

port priority number and MAC address

In a switched environment, what does the IEEE 802. 1Q standard describe?

the operation of VTP

a method of VLAN trunking

an approach to wireless LAN communication

the process for root bridge selection

VLAN pruning

What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch?

It creates a VLAN 999 interface.

It designates VLAN 999 for untagged traffic.

It blocks VLAN 999 traffic from passing on the trunk.

It designates VLAN 999 as the default for all unknown tagged traffic.

Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? (Choose two.)

802. 1d

VTP

802. 1q

STP

SAP

Which switch would STP choose to become the root bridge in the selection process?

32768: 11-22-33-44-55-66

32768: 22-33-44-55-66-77

32769: 11-22-33-44-55-65

32769: 22-33-44-55-66-78

A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?

More collision domains will be created.

IP address utilization will be more efficient.

More bandwidth will be required than was needed previously.

An additional broadcast domain will be created.

What are three benefits of implementing VLANs? (Choose three. )

A higher level of network security can be reached by separating sensitive data traffic from other network traffic.

A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure.

A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure.

Broadcast storms can be mitigated by increasing the number of broadcast domains, thus reducing their size.

Broadcast storms can be mitigated by decreasing the number of broadcast domains, thus increasing their size.

VLANs make it easier for IT staff to configure new logical groups, because the VLANs all belong to the same broadcast domain.

Port-based VLANs increase switch-port use efficiency, thanks to 802. 1Q trunks.

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

802. 3ad

802. 1w

802. 1D

802. 1Q

Which of the following are benefits of VLANs? (Choose three. )

They increase the size of collision domains.

They allow logical grouping of users by function.

They can enhance network security.

They increase the size of broadcast domains while decreasing the number of collision domains.

They increase the number of broadcast domains while decreasing the size of the broadcast domains.

They simplify switch administration.

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

discarding

listening

learning

forwarding

disabled

Which two commands can be used to verify a trunk link configuration status on a given Cisco switch interface? (Choose two.)

show interface trunk

show interface interface

show ip interface brief

show interface vlan

show interface switchport

Which command enables RSTP on a switch?

spanning-tree uplinkfast

spanning-tree mode rapid-pvst

spanning-tree backbonefast

spanning-tree mode mst

Why will a switch never learn a broadcast address?

Broadcasts only use network layer addressing.

A broadcast frame is never forwarded by a switch.

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

Broadcast addresses use an incorrect format for the switching table.

Broadcast frames are never sent to switches.

Which two link protocols are used to carry multiple VLANs over a single link? (Choose two. )

VTP

802. 1q

IGP

ISL

802. 3u

Assuming the default switch configuration, which VLAN range can be added, modified, and removed on a Cisco switch?

1 through 1001

2 through 1001

1 through 1002

2 through 1005

Which statement about VLAN operation on Cisco Catalyst switches is true?

When a packet is received from an 802. 1Q trunk, the VLAN ID can be determined from the source MAC address and the MAC address table.

Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.

Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN.

Ports between switches should be configured in access mode so that VLANs can span across the ports.

Which three statements about RSTP are true? (Choose three.)

RSTP significantly reduces topology reconverging time after a link failure.

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

RSTP port states are blocking, discarding, learning, or forwarding.

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

RSTP also uses the STP proposal-agreement sequence.

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

At which layer of the OSI model is RSTP used to prevent loops?

physical

data link

network

transport

Question 1 of 20

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