H12-311_V3-0 practice question 6 of 10

User number 300 People, concurrency rate 70% , Terminal support 2.4GHz and 5GHz Frequency band, in accordance with each AP Maximum number of dual-band access users40 people Consider, need at least () AP Able to meet capacity requirements?

Full set: 339 questions
Answer options
A: 5
B: 6 Correct answer
C: 7
D: 8
Correct Answer:
B. 6
Explanation

WLAN capacity planning requires calculating the total number of concurrent users and dividing that by the user capacity per Access Point (AP). First, determine the total concurrent users: 300 total users multiplied by a 70% concurrency rate yields 210 concurrent active users ($300 \times 0.70 = 210$). Next, calculate the minimum required APs based on each dual-band AP supporting up to 40 access users: $210 \div 40 = 5.25$ APs. Because AP deployments require integer units to fully accommodate all concurrent users without exceeding capacity limits, the result must be rounded up to the next whole integer, resulting in 6 APs.

Why Incorrect

A: 5 APs can only support up to 200 concurrent users ($5 \times 40 = 200$), which falls short of the required 210 concurrent users. C: 7 APs exceed the minimum required quantity, resulting in unnecessary hardware over-provisioning and increased deployment cost. D: 8 APs significantly over-provision capacity, which increases co-channel interference and capital expenditure unnecessarily.

References

- Huawei Technologies Co., Ltd., "HCIA-WLAN V3.0 Training Courseware: WLAN Network Design and Deployment," Chapter 4: WLAN Capacity Planning and AP Quantity Calculation.

- Huawei Technologies Co., Ltd., "WLAN Network Planning and Design Guide," Document Version 05, Section: User Capacity Evaluation Principles.

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