MOD 3 Vlan
If an organization is changing to include Cisco IP phones in its network, what design feature must be considered to ensure voice quality
A separate VLAN is needed for voice traffic.
What is the purpose of setting the native VLAN separate from data VLANs
A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs.
29. Refer to the exhibit. All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem
Allow vlan 20 on trunk link
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
It allows only VLAN 30 on Fa0/5.
What is the purpose of the vlan.dat file on a switch
It holds the VLAN database.
What type of VLAN supports untagged traffic
Native VLAN
A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?
Only devices in VLAN 20 see the frame.
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?
Port Fa0/11 will be returned to VLAN 1.
What are three primary benefits of using VLANs? (Choose three.)
Security Cost Reduction improved IT staff efficiency
On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?
Switch(config)# no vlan 100
An administrator is investigating a failure on a trunk link between a Cisco switch and a switch from another vendor. After a few show commands, the administrator notices that the switches are not negotiating a trunk. What is a probable cause for this issue?
Switches from other vendors do not support DTP.
Which two characteristics describe the native VLAN? (Choose two.)
The native VLAN traffic will be untagged across the trunk link. The native VLAN provides a common identifier to both ends of a trunk.
What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch?
The port becomes inactive.
What happens to switch ports after the VLAN to which they are assigned is deleted?
The ports stop communicating with the attached devices.
to the exhibit. A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?
They are configured as trunk interface
31. Match the IEEE 802.1Q standard VLAN tag field with the description. (Not all options are used.)
User priority- a value that supports level or service Type C format identifier Vlan ID
24. Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)
When connecting a Cisco switch with a non Cisco switch On links that shouldn't be trunking
A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking?
between two switches that utilize multiple VLANs between a switch and a server that has an 802.1Q NIC
What type of VLAN is used to separate the network into groups of users or devices?
data VLAN
What type of VLAN should not carry voice and network management traffic?
data VLAN
What type of VLAN is initially the management VLAN?
default VLAN
In which memory location are the VLAN configurations of normal range VLANs stored on a Catalyst switch?
flash
In which location are the normal range VLANs stored on a Cisco switch by default
flash memory
Where is the vlan.dat file stored on a switch
flash memory
What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HTTP, and SNMP?
management VLAN
Which distinct type of VLAN is used by an administrator to access and configure a switch
management VLAN
When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default?
native VLAN ID
. On a Cisco switch, where is extended range VLAN information stored?
running configuration file
For what reason would a network administrator use the show interfaces trunk command on a switch?
to view the native VLAN
Refer to the exhibit. In what switch mode should port G0/1 be assigned if Cisco best practices are being used?
trunk
What type of VLAN is designed to have a delay of less than 150 ms across the network?
voice VLAN
What type of VLAN is designed to reserve bandwidth to ensure IP Phone quality?
voice VLAN
