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

Question

Options

• AA new switch has no VLANs configured.
• BConnectivity between VLANs requires a Layer 3 device.
• CVLANs typically decrease the number of collision domains.
• DEach VLAN uses a separate address space.
• EA switch maintains a separate bridging table for each VLAN.
• FVLANs cannot span multiple switches.

• A
  4% (2)
• B
  91% (43)
• C
  2% (1)
• F
  2% (1)

Explanation

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.

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