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Exam 500-220 topic 2 question 14 discussion

Actual exam question from Cisco's 500-220
Question #: 6
Topic #: 2
[All 500-220 Questions]

One thousand concurrent users stream video to their laptops. A 30/70 split between 2.4 GHz and 5 GHz is used.
Based on client count, how many APs (rounded to the nearest whole number) are needed?

  • A. 26
  • B. 28
  • C. 30
  • D. 32
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by loopback0 at Oct. 18, 2022, 2:08 p.m.

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loopback0
Highly Voted 2 years ago
Correct: B https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/Best_Practice_Design_-_MR_Wireless/High_Density_Wi-Fi_Deployments
upvoted 12 times
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DRHoppo
Highly Voted 2 years ago
agree with B: The math(s) are 70% of 1000 = 700/25 =28 , and 30% of 1000 = 300/25 = 12. use the greater number out the two calculations, therefore 28
upvoted 6 times
Jeff8989
1 year, 8 months ago
This is not correct. Number of Access Points = Max (Number of Access Points based on throughput, Number of Access Points based on client count).
upvoted 1 times
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3ebcffa
Most Recent 3 weeks, 4 days ago
Selected Answer: B
is b only count 5ghz in formule thanks sorry for my error
upvoted 1 times
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3ebcffa
3 weeks, 4 days ago
Selected Answer: C
Its c 300 / 25 =12 700 / 40= 27,5 17,5 +12 29,5 nearest is 30
upvoted 1 times
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farajcmm
3 weeks, 6 days ago
Selected Answer: A
2.4 GHz (30% of 1000 = 300 users) Divide by 25 users per AP (best practice) → 300 / 25 = 12 APs 5 GHz (70% of 1000 = 700 users) Divide by 50 users per AP (best practice) → 700 / 50 = 14 APs Total = 12 + 14 = 26 APs
upvoted 1 times
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clrf26
4 months, 3 weeks ago
Selected Answer: B
#APs = (Concurrent 5GHz clients) /25 28 = (70% of 1000) / 25
upvoted 2 times
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rnunes1110
11 months, 2 weeks ago
Selected Answer: B
Correct: B
upvoted 1 times
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Knightime14
1 year, 2 months ago
It's easier for me to remember that each AP can handle 25 concurrent 5GHz connections. I know it's essentially the same thing as the formula, it's just easier for me to remember.
upvoted 5 times
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txami
1 year, 9 months ago
Selected Answer: B
Agree with all, this calculation appears in https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/Best_Practice_Design_-_MR_Wireless/High_Density_Wi-Fi_Deployments
upvoted 3 times
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dustexam123
1 year, 9 months ago
What if the question stated 100 users instead of 1000. What would the answer be then?
upvoted 1 times
Nathan_
1 year, 7 months ago
That would be 3 as the formula is as followed #APs = (Concurrent 5GHz clients) /25 So that means (70% of 100) / 25 = 2.8 and you need to round up so that means 3
upvoted 2 times
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rocketpluto
1 year, 9 months ago
Correct answer is B - they are asking for client count and not the number of APs based on application. If they noted based on application then it would be aggregate app throughput/device throughput=number of APs. Depending on assumptions that could be C.
upvoted 1 times
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azjlmpang
1 year, 9 months ago
#APs = (concurrent 5 GHz clients) / 25 = (70% x 1000) / 25 = 28
upvoted 2 times
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