200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ434

Network Access

What is the advantage of configuring PortFast on an interface?

  • A The frames entering the interface are marked with the higher priority and then processed faster by a switch.
  • B After the cable is connected, the interface is available faster to send and receive user data.
  • C Real-time voice and video frames entering the interface are processed faster.
  • D After the cable is connected, the interface uses the fastest speed setting available for that cable type.
Explanation

PortFast allows an STP-enabled access port to move to the forwarding state immediately instead of waiting through the normal spanning-tree startup states. This makes the interface ready much faster after the cable is connected, so connected end devices can send and receive user data sooner.

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