CCNA 4 Flashcards
Vlan questions
What are three benefits of implementing VLANs?
A higher level of network security can be reached by separating sensitive data traffic from other network traffic.
Broadcast storms can be mitigated by increasing the number of broadcast domains, thus reducing their size.
A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure.
Which command can you enter to view the ports that are assigned to VLAN 20
switch#show vlan id 20
What are three advantages of vlans
The allow access to network services based on department, not physical location.
They can simplify adding, moving, or changing hosts on the network.
They establish broadcast domains in switched networks.
Which command sequence can you enter to create VLAN 20 and assign it to an interface on a switch?
Switch(config)#vlan 20
Switch(config)#interface gigx/y
Switch(config-if)#switchport access vlan 20
Which two circumstances can cause collision domain issues on VLAN domain?
duplex mismatches on ethernet segments in the same vlan
congestion on the switch inband path.
What is the default vlan on an access port
1
True or False:
Cisco Discovery Protocol traffic travels on the native vlan by default
True
True or False:
Traffic on the native vlan is tagged with 1 by default
False
True or False:
Control plane traffic is blocked on the native VLAN
False
True or False:
The native VLAN is typically disabled for security reasons
False
What statement describes the effect of this configuration?
Router#config terminal
Router(config)#vlan 10
Router(config-vlan)#do show vlan
The VLAN 10 configuration is saved when the router exits VLAN configuration mode.
Which method does a connected trunk port use to tag VLAN traffic?
IEEE 802.1Q
Which of the following are benefits of VLANs?
They allow logical grouping of users by function.
they can enhance network security.
they increase the number of broadcast domains while decreasing the size of the broadcast domains.
Which feature facilitate the tagging of a specific VLAN?
Encapsulation
What are three advantages of VLANs
VLANs establish broadcast domains in switched networks
VLANs allow access to network services based on department, not physical location.
VLANs can greatly simplify adding, moving, or changing hosts on the network.
Under normal operations, cisco recommends that you configure switch ports on which VLAN?
on any vlan except the default vlan
Which two protocol can detect native vlan mismatch errors
CDP
STP
Which statement about vlan configuration is true?
The switch must be in VTP server or transparent mode before you can configure a vlan
Which statement about vlan operation on cisco catalyst switches is true?
unknown unicast frames are re- transmitted only to the ports that belong to the same vlan.
Which two statements about data VLANs on access ports are true?
Exactly one vlan can be configured on the interface
They can be configured as host ports.
Which feature facilitates the tagging of frames on a specific VLAN
Encapsulation
Assuming the default switch configuration which vlan range can be added modified and removed on a cisco switch?
2 through 1001
