Huawei Certified ICT Associate – Data Center Network (HCIA-DCN) — Question 1

During STP calculation, the port cost is associated with the port bandwidth by default. Which of the following statements about the relationship between port cost and port bandwidth is true?

Answer options

• A. A higher port bandwidth indicates a smaller port cost.
• B. A higher port bandwidth indicates a larger port cost.
• C. The port bandwidth is equal to the port cost.
• D. The port cost varies randomly according to port bandwidth.

Correct answer: A

Explanation

The correct answer is A because, in STP, a higher port bandwidth generally results in a lower port cost, reflecting the efficiency of the link. Options B and D are incorrect as they misrepresent the relationship, and option C is incorrect because port bandwidth and port cost are not equivalent values.