Module 3
Which is true of VLAN 1? (Choose all that apply.)
1.) All switch ports are assigned to VLAN 1 by default. 2.) The native VLAN is VLAN 1 by default. 3.) The management VLAN is VLAN 1 by default. 4.) VLAN 1 cannot be renamed or deleted.
A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking? (Choose two.)
1.) between a switch and a server that has an 802 1Q. NIC 2.) between two switches that utilize multiple VLANS
What are three primary benefits of using VLANS? (Choose three.)
1.) cost reduction 2.) security
Which two DTP modes will form a trunk with an interface that is configured as dynamic auto? (Choose two.)
1.) trunk 2.) dynamic desirable
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.
True or False? It is a best practice to configure the native VLAN as VLAN 1.
False
In which memory location are the VLAN configurations of normal range VLANS stored on a Catalyst switch?
Flash
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
3. 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.
What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from the switch?
The port becomes inactive.
True or False? VLANS can improve security by isolating sensitive data from the rest of the network.
True
True or False? VLANS improve network performance by segmenting broadcast domains.
True
In which memory location are the VLAN configurations of normal range VLANS stored on a Catalyst switch?
When a normal range VLAN is created the vlan.dat file.
What is the default switchport mode for Cisco Catalyst switches?
dynamic auto
True or false? DTP is an open standard IEEE protocol that specifies auto negotiation of switch trunk links.
false
True or false? Two switchports on a link both configured as dynamic auto will successfully negotiate a trunk.
false
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?
in flash memory
Which distinct type of VLAN is used by an administrator to access and configure a switch?
management VLAN
Which type of VLAN is assigned to 802 1Q trunk ports to carry untagged traffic?
native
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
