200-301: Cisco Certified Network AssociateDemo

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QuestionQ1273

Network Fundamentals

Which three statements are common 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

VLANs logically separate a switched network into distinct Layer 2 broadcast domains. Traffic cannot move from one VLAN to another without Layer 3 forwarding, so inter-VLAN connectivity requires a router or multilayer switch. In normal network design, each VLAN is assigned its own IP subnet/address space. Switches also track learned MAC addresses in a VLAN-specific bridging table, so forwarding decisions are maintained separately for each VLAN.

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