A network administrator is configuring Layer 2 switching features and security controls across an enterprise switch environment. Match each switching concept or operational mechanism on the left to its corresponding functional behavior on the right.
- 802.1Q Native VLANTransmits and receives untagged Ethernet frames across an 802.1Q trunk link
- STP PortFastBypasses Listening and Learning states to transition access ports directly into the Forwarding state
- BPDU GuardPlaces a port into an err-disabled state upon receiving Spanning Tree Protocol control frames
- Dynamic MAC AgingFlushes idle MAC address entries from the Content Addressable Memory table after a timer expires
Cevap
802.1Q Native VLAN matches untagged traffic transport across trunk links; STP PortFast matches direct transition to forwarding state; BPDU Guard matches err-disabling ports upon BPDU reception; Dynamic MAC Aging matches flushing idle CAM table entries.
Each feature is correctly mapped to its core Layer 2 switching mechanism: the 802.1Q native VLAN handles untagged trunk traffic, PortFast accelerates edge port transition to forwarding, BPDU Guard protects edge ports by err-disabling them when BPDUs are detected, and dynamic MAC aging clears inactive CAM table entries.
Adım Adım Çözüm
Anahtar Kavram
Switching Concepts and VLANs