Question 1

What are three primary benefits of using VLANs?

Accepted Answer

security

Answer

end user satisfaction

Answer

a reduction in the number of trunk links

Answer

no required configuration

Question 2

Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

Accepted Answer

native

Answer

data

Answer

default

Answer

management

Question 3

A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking?

Accepted Answer

between two switches that utilize multiple VLANs

Answer

between a switch and a network printer

Answer

between two switches that share a common VLAN

Answer

between a switch and a client PC

Question 4

What must the network administrator do to remove Fast Ethernet port fa0/1 from VLAN 2 and assign it to VLAN 3?

Accepted Answer

Enter the switchport access vlan 3 command in interface configuration mode.

Answer

Enter the no vlan 2 and the vlan 3 commands in global configuration mode.

Answer

Enter the no shutdown command in interface configuration mode to return it to the default configuration and then configure the port for VLAN 3.

Answer

Enter the switchport trunk native vlan 3 command in interface configuration mode.

Question 5

When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default?

Accepted Answer

native VLAN ID

Answer

unused VLAN ID

Answer

data VLAN ID

Answer

management VLAN ID

Question 6

Port Fa0/11 on a switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on the Fa0/11 interface, what will happen?

Accepted Answer

Port Fa0/11 will be returned to VLAN 1.

Answer

VLAN 30 will be deleted.

Answer

Port Fa0/11 will be shutdown.

Answer

An error message would be displayed.

Question 7

Which command is used to remove only VLAN 20 from a switch?

Accepted Answer

no vlan 20

Answer

delete flash:vlan.dat

Answer

no switchport access vlan 20

Answer

delete vlan.dat

Question 8

What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch?

Accepted Answer

The port becomes inactive.

Answer

The port creates the VLAN again.

Answer

The port automatically associates itself with the native VLAN.

Answer

The port goes back to the default VLAN.

Question 9

Which two characteristics match extended range VLANs?

Accepted Answer

VLAN IDs exist between 1006 to 4094.

Answer

They are commonly used in small networks.

Answer

VLANs are initialized from flash memory.

Answer

CDP can be used to learn and store these VLANs.

Question 10

A Cisco switch currently allows traffic tagged with VLANs 10 and 20 across trunk port Fa0/5. What is the effect of issuing a switchport trunk allowed vlan 30 command on Fa0/5?

Accepted Answer

It allows only VLAN 30 on Fa0/5.

Answer

It allows a native VLAN of 30 to be implemented on Fa0/5.

Answer

It allows VLANs 1  to 30 on Fa0/5.

Answer

It allows VLANs 10, 20, and 30 on Fa0/5.

Question 11

Refer to the exhibit. PC-A and PC-B are both in VLAN 60. PC-A is unable to communicate with PC-B. What is the problem?

Accepted Answer

The VLAN that is used by PC-A is not in the list of allowed VLANs on the trunk.

Answer

The native VLAN should be VLAN 60.

Answer

The trunk has been configured with the switchport nonegotiate command.

Answer

The native VLAN is being pruned from the link.

Question 12

Refer to the exhibit. DLS1 is connected to another switch, DLS2, via a trunk link. A host that is connected to DLS1 is not able to communicate to a host that is connected to DLS2, even though they are both in VLAN 99. Which command should be added to Fa0/1 on DLS1 to correct the problem?

Accepted Answer

switchport trunk native vlan 66

Answer

switchport mode dynamic auto

Answer

switchport trunk allowed vlan add 99

Answer

switchport nonegotiate

Question 13

What is a characteristic of legacy inter-VLAN routing?

Accepted Answer

The router requires one Ethernet link for each VLAN.

Answer

Only one VLAN can be used in the topology.

Answer

The user VLAN must be the same ID number as the management VLAN.

Answer

Inter-VLAN routing must be performed on a switch instead of a router.

Question 14

What is a disadvantage of using router-on-a-stick inter-VLAN routing?

Accepted Answer

does not scale well beyond 50 VLANs

Answer

requires the use of more physical interfaces than legacy inter-VLAN routing

Answer

does not support VLAN-tagged packets

Answer

requires the use of multiple router interfaces configured to operate as access links

Question 15

Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.35 and a destination address of 192.168.1.85. What will the router do with this packet?

Accepted Answer

The router will forward the packet out interface FastEthernet 0/1.2.

Answer

The router will forward the packet out interface FastEthernet 0/1.3.

Answer

The router will drop the packet.

Answer

The router will forward the packet out interface FastEthernet 0/1.1.

Question 16

Refer to the exhibit. In what switch mode should port G0/1 be assigned if Cisco best practices are being used?

Accepted Answer

trunk

Answer

access

Answer

native

Answer

auto

Question 17

A small college uses VLAN 10 for the classroom network and VLAN 20 for the office network. What is needed to enable communication between these two VLANs while using legacy inter-VLAN routing?

Accepted Answer

A router with at least two LAN interfaces should be used.

Answer

A router with one VLAN interface is needed to connect to the SVI on a switch.

Answer

Two groups of switches are needed, each with ports that are configured for one VLAN.

Answer

A switch with a port that is configured as trunk is needed to connect to a router.

Question 18

Refer to the exhibit. A network administrator needs to configure router-on-a-stick for the networks that are shown. How many subinterfaces will have to be created on the router if each VLAN that is shown is to be routed and each VLAN has its own subinterface?

Accepted Answer

4

Answer

1

Answer

3

Answer

2

Question 19

When configuring a router as part of a router-on-a-stick inter-VLAN routing topology, where should the IP address be assigned?

Accepted Answer

to the subinterface

Answer

to the interface

Answer

to the SVI

Answer

to the VLAN

Question 20

A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the router-on-a-stick approach?

Accepted Answer

A switch with a port that is configured as a trunk is needed when connecting to the router.

Answer

A multilayer switch is needed.

Answer

Two groups of switches are needed, each with ports that are configured for one VLAN.

Answer

A router with at least two LAN interfaces is needed.

Question 21

Which four steps are needed to configure a voice VLAN on a switch port?

Accepted Answer

Ensure that voice traffic is trusted and tagged with a CoS priority value.

Answer

Configure the switch port interface with subinterfaces.

Answer

Activate spanning-tree PortFast on the interface.

Answer

Configure the interface as an IEEE 802.1Q trunk.

Question 22

Which four steps are needed to configure a voice VLAN on a switch port?

Accepted Answer

Assign the voice VLAN to the switch port.

Answer

Configure the switch port interface with subinterfaces.

Answer

Assign a data VLAN to the switch port.

Answer

Configure the interface as an IEEE 802.1Q trunk.

Question 23

Which four steps are needed to configure a voice VLAN on a switch port?

Accepted Answer

Add a voice VLAN.

Answer

Activate spanning-tree PortFast on the interface.

Answer

Assign a data VLAN to the switch port.

Answer

Configure the interface as an IEEE 802.1Q trunk.

Question 24

Refer to the exhibit. A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem?​

Accepted Answer

There is an incorrect IP address configured on GigabitEthernet 0/0.30.

Answer

The GigabitEthernet 0/0 interface is missing an IP address.

Answer

The command no shutdown is missing on GigabitEthernet 0/0.30.

Answer

The wrong VLAN has been configured on GigabitEthernet 0/0.45.

Question 25

Fill in the blank. Use the full command syntax. The ______________________ command displays the VLAN assignment for all ports as well as the existing VLANs on the switch.

Accepted Answer

show vlan

Answer

sh-vlan

Answer

get vlan

Answer

sh-v_lan

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