Which approach to assigning VLAN membership maximizes
forwarding performance?
membership by MAC address
membership by logical address
membership by protocol
membership by port
membership by operating
system
2
What are the characteristics of VLAN1 in a default
switch configuration? (Choose three.)
CDP messages are only sent on
VLAN1.
VLAN1 is reserved for links between
switches.
All switch ports are members of
VLAN1.
VLAN1 must be created before ports
can be assigned to it.
Only switch port 0/1 is assigned to
VLAN1.
An IP address configured on the
switch will only apply to ports on
VLAN1.
3
How does a bridge handle the frames that it receives?
(Choose three.)
If the source is unknown, the
source port is shutdown.
If the source port of a frame is
unknown, a bridge will issue an ARP request.
If the destination is on another
segment, the bridge forwards the frame only to the correct
interface.
A bridge forwards frames for
unknown destinations to the default gateway.
If the destination port is unknown,
a bridge will flood the frame to all ports in the broadcast domain,
except for the source port.
If the destination of the frame is
on the same segment as the source, a bridge will not forward the
frame.
4
What needs to be done when deleting an entire VLAN?
(Choose three.)
Enter database configuration
mode.
Reboot the switch in order for the
changes to take effect.
Use the negative form of the
command that was used to create the VLAN.
Reassign the switch ports from the
deleted VLAN to other VLANs if they are to be used.
Use the erase vlan command
in global configuration mode.
Delete the vlan.dat file from
flash.
5
A network administrator is attempting to configure
routing between VLANs over a trunked link. A trunk link cannot be
established between a switch and a router. Which of the following
are possible sources of this problem? (Choose two.)
The router IOS does not support
trunking.
The port is connected and is not
receiving alignment and FCS errors.
The switch duplex and speed are not
set properly.
The router and switch are running
different versions of STP.
The switch IP address is
incorrectly configured.
6
If two 12-port hubs are connected to a switch that has
three VLANs configured, how many bridging tables will the switch
maintain?
1
2
3
12
36
7
A network administrator has configured a switch with
VLANs. Hosts will join the VLANs based on their MAC or IP address.
What type of VLANs have been configured on the switch?
dynamic
database
multiple
port-based
8
A network administrator has configured a switch with
three VLANs: VLAN1, VLAN2, and VLAN3. Port 10 is to be assigned to
VLAN3. Which of the following commands are needed to assign port 10
to VLAN3? (Choose three.)
How does the use of VLANs benefit an organization?
(Choose two.)
by centralizing departmental staff
and network resources together in a single physical area
by allowing organizational
flexibility by grouping users together by function instead of
physical location
by simplifying the task of adding
and moving network resources and users in a growing
organization
by reducing the number of broadcast
domains in an enterprise network
by eliminating the need for routing
traffic in large networks
by reducing network management
costs by replacing many Layer 2 devices with a few Layer 3
devices
10
Which of the following states the 80/20 rule of
end-to-end VLANs?
80% of network resources should be
remote and 20% should be on the local VLAN.
80% of VLANs should be static and
the remaining 20% should be dynamic.
80% of network traffic should be
local and 20% remote.
80% of the network sources should
be centralized at the core layer and the remaining 20% at the
distribution layer.
80% of traffic should be routed and
20% should be switched.
11
Which factors influence the number of VLANs that may
be required on a switch? (Choose three.)
the physical addressing
scheme
traffic patterns in the
network
types of applications in use
the adaptability of the
network
workgroup functions and
commonality
the tagging option used for VLAN
identification
12
A network administrator has just finished configuring
a switch with multiple VLANs. A workstation on VLAN2 cannot
communicate with a workstation on VLAN3. What needs to be done to
correct this problem?
The traffic needs to be routed
between the two VLANs.
The hosts must be reconfigured to
be on the same logical network.
The VLANs need to be configured to
be on the same broadcast domain.
The switch must be configured to
share VLAN traffic.
13
Which of the following describe networks in which the
use of static VLANs is appropriate? (Choose three.)
Workstations, departments, and
network resources are seldom moved.
VLAN port membership frequently
changes.
Robust VLAN management software is
available to the network administrator.
The overhead required to manage
VLAN MAC address and custom filtering tables is not desirable.
VLANs are often added, deleted, and
modified.
14
VLAN 10 needs to be removed from a switch. Which
command must the administrator enter in order to accomplish this
task?
Refer to the network shown in the graphic. Host A on
VLAN1 has sent a message requesting the MAC address of its default
gateway. Which of the following network hosts will process this
message?
The message will be seen by the
hosts on VLAN1 and VLAN2.
The message will be seen only by
the hosts connected to Switch1.
The message will be seen only by
the hosts connected to VLAN1 on Switch1.
The message will be seen by the
hosts connected to VLAN1 on Switch1 and Switch2.
The message will only be seen by
router interface e0.
16
If a switch connects 12 collision domains and is
configured with three VLANs, how many broadcast domains does it
have?
1
3
4
12
17
Which of the following commands are used to verify
VLAN configuration? (Choose two.)
Switch# show vlan id id_number
Switch# show vlan
Switch# show config vlan id_number
Switch# show vlan config id_number
Switch# show interface
vlan id_number
18
Which of the following commands will assign switch
port 0/9 to VLAN3?
Switch(config-if)# switchport
access vlan 3
Switch(config-if)# switchport
vlan 3
Switch(config-if)# switchport
access 3
Switch(vlan)# switchport
0/9
Switch(vlan)# access switchport
0/9
19
What does a switch do when it receives a frame and the source address is unknown?
The switch will discard the
frame.
The switch will request the sender
resend the frame.
The switch will map the source
address to the port on which it was received.
The switch will flood the frame to
all attached devices.
The switch will issue an ARP
request to confirm that the source
exists.
20
What is true of the method by which VLAN membership is
identified in Ethernet frames? (Choose two.)
The frame header is in its original
format when it reaches the endpoint device.
The VLAN membership of frames does
not need to be identified unless ISL is in use.
The Ethernet frame is encapsulated
or modified with the VLAN ID information.
The VLAN ID is removed by the
endpoint device upon delivery of the
frame.
21
Which of the following statements are true regarding a
root bridge in a spanning tree topology? (Choose two.)
The root bridge timers control BPDU
traffic on the network.
Only the show commands on
the switch can display root bridge information.
It is the central point of a
spanning tree topology.
Storm control is enabled by
default.
VLANs cannot be trunked between
switches until the root bridge has been
elected.
22
Which of the following are methods of establishing
VLAN membership? (Choose three.)
logical addresses
physical addresses
ISL addresses
switch port attachment
hardware platform
traffic
pattern
23
Switch-A and Switch-B are both configured with ports
in the Marketing, Sales, Accounting, and Admin VLANs. Each VLAN
contains 12 users. How many different subnetworks will be needed to
enable routed connectivity between the VLANs?
1
4
12
48
24
What happens to the member ports of a VLAN when the
VLAN is deleted?
They become inactive.
They default back to the management
VLAN.
They automatically become a part of
VLAN1.
They must be assigned to another
VLAN before the original VLAN can be deleted.
They remain a part of that VLAN
until the switch is rebooted. They then become members of the
management VLAN.
