Which three statements are typical characteristics of VLAN arrangements? (Choose three.)
A.
A new switch has no VLANs configured.
B.
Connectivity between VLANs requires a Layer 3 device.
C.
VLANs typically decrease the number of collision domains.
D.
Each VLAN uses a separate address space.
E.
A switch maintains a separate bridging table for each VLAN.
F.
VLANs cannot span multiple switches.
Explanation:
By default, all ports on a new switch belong to VLAN 1 (default & native VLAN).
There are also some well-known VLANs (for example: VLAN 1002 for fddi-default; VLAN 1003 for
token-ring…) configured by default -> A is not correct.
To communicate between two different VLANs we need to use a Layer 3 device like router or
Layer 3 switch -> B is correct.
VLANs don’t affect the number of collision domains, they are the same -> C is not correct.
Typically, VLANs increase the number of broadcast domains.We must use a different network (or
sub-network) for each VLAN. For example we can use 192.168.1.0/24 for VLAN 1, 192.168.2.0/24
for VLAN 2 -> D is correct.
A switch maintains a separate bridging table for each VLAN so that it can send frame to ports on
the same VLAN only. For example, if a PC in VLAN 2 sends a frame then the switch look-ups its
bridging table and only sends frame out of its ports which belong to VLAN 2 (it also sends this
frame on trunk ports) -> E is correct.
We can use multiple switches to expand VLAN -> F is not correct.