Chapter 3 test
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VLANS group hosts _____________________
logically or physically?
Logically—regardless of physical location
 Devices in one VLAN do not hear the broadcasts
from devices in another VLAN
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A Management VLAN is any VLAN that is
configured to access management features of
the switch.
After initial boot of an unconfigured switch, all
ports are members of the __________________
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Management VLAN
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VLAN 1 is always used as the management
VLAN and you cannot change management to
a different number (T or F)
False…you can change it to a different number,
and in fact you should
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Why do you set up trunk lines?
The are used between two switches that utilize
multiple VLANs to carry the traffic of ALL
VLANs
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If you have traffic going between two
computers that are both on the same VLAN
and both attached to the same switch, will the
switch add a VLAN tag to the frame?
No it is not
needed
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You have a switch that doesn’t have VLANs set
up. You enter the following command on
interface fa0/18 of the switch
Switchport access vlan 20
What effect does this have on the switch in
regard to VLANs?
VLAN 20 will be created automatically
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What command is used to remove a VLAN
from a switch?
No vlan 20
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If a port on a switch has been assigned to the
VLAN 30 and then the command is negated by
entering no switchport access vlan 30, what
will happen to the port?
It will return to VLAN1
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Which command is used to display the
encapsulation type and the access mode of a
port
Show interface fa0/1 switchport
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If a port belongs to VLAN 2 and the network
administrator wants to reassign it to the new
VLAN 3, what must be done?
Enter the command switchport access vlan 3
You do NOT need to remove it from the old
vlan first, just reassign it
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If you need to clear all VLAN information from
the swtich to incorporate a new network
design, how should you accomplish this??
Delete the startup configuration file and the
vlan.dat file in the flash memory of the switch
and reboot the switch
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If you have a trunk port and you issue the
command switchport trunk allowed vlan 30
on the trunk port interface, what traffic will
go to the other switch ??
Only VLAN 30 TRAFFIC
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If you have multiple VLANs and do not
specify specific vlans allowed on the trunk,
which VLANs will be allowed across the
trunk??
All VLANs will be allowed
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If you have a Cisco switch and a non-Cisco
switch, what command should you enter to
prevent the transfer of DTP frames?
S1(config-if)#switchport nonegotiate
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When should you disable DTP while managing
a local area network?
When connecting a Cisco switch to a non-Cisco
switch
On links that should not be trunking
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What happens to a port that is associated with
VLAN 10 when the administrator delete VLAN
10 from the switch?
The port becomes inactive
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What is a good practice to help prevent VLAN
hopping attacks?
Change the native VLAN number to one that is
distinct from all user VLANs and is not
VLAN1
Daisable DTP autonegitiation on end-user
ports