Which three statements are typical characteristics of VLAN arrangements? (Choose three.)

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 VLA
G . VLANs cannot span multiple switches.

View Answer

Answer: B, D, E

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.