What is the benefit of configuring PortFast on an interface?
Click on the arrows to vote for the correct answer
A. B. C. D.B.
The correct answer to the question "What is the benefit of configuring PortFast on an interface?" is B: After the cable is connected, the interface is available faster to send and receive user data.
PortFast is a feature on Cisco switches that allows an interface to immediately transition from the blocking state to the forwarding state when a link is established. Without PortFast, the switch waits for the spanning tree protocol (STP) to converge before forwarding traffic on the interface. This delay can cause problems for end devices, such as workstations or servers, that need to quickly establish a network connection.
By enabling PortFast on an interface, the interface can quickly transition to forwarding state, bypassing the listening and learning states that are part of the STP convergence process. This allows end devices to establish network connectivity more quickly, reducing the time it takes for them to send and receive user data.
Option A, marking frames with a higher priority, is not a benefit of PortFast. Priority tagging is a different feature that can be used to assign a higher priority to certain types of traffic.
Option C, processing real-time voice and video frames faster, is also not a direct benefit of PortFast. While PortFast can help reduce the delay in establishing network connectivity for real-time applications, other features such as quality of service (QoS) are typically used to prioritize and manage traffic for these applications.
Option D, using the fastest speed setting available for the cable type, is not related to PortFast. Speed settings are configured separately from PortFast and are typically negotiated between the switch and end device during link establishment.