Huawei Certified Network Associate – Routing and Switching (HCNA-RS, legacy) — Question 145

When a network administrator configures STP in the network, BPDU begin to be sent by switch. Which of the following statements regarding the BPDU frame are correct?

Answer options

• A. A BPDU uses the IEEE 802.3 standard frame type
• B. A BPDU uses the Ethernet II standard frame type
• C. The BPDU frame's control field is 3
• D. The destination MAC address field of a BPDU frame is a broadcast address

Correct answer: A

Explanation

The correct answer is A because BPDUs are indeed encapsulated using the IEEE 802.3 standard frame type. Option B is incorrect since BPDUs do not use Ethernet II framing. Options C and D are also incorrect as the control field for BPDUs is not 3 and the destination MAC address is not typically a broadcast address.