CCNA: Cisco Certified Network Associate — Question 624

What are two features of PortFast? (Choose two.)

Answer options

• A. Convergence is fast after a link failure.
• B. STP loops are mitigated for uplinks to other switches.
• C. Ports transition directly from the blocking state to the forwarding state.
• D. Ports operate normally without receiving BPDUs.
• E. Ports that connect to the backbone automatically detect indirect link failures.

Correct answer: C, D

Explanation

The correct answers, C and D, highlight that PortFast allows ports to bypass the usual STP states, enabling immediate forwarding and functioning without BPDUs. Options A and B describe characteristics of STP in general, while E refers to a feature not associated with PortFast specifically.