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Exam 300-425 topic 1 question 22 discussion

Actual exam question from Cisco's 300-425
Question #: 22
Topic #: 1
[All 300-425 Questions]

An engineer changed the TPC Power Threshold for a wireless deployment from the default value to -65 dBm. The engineer conducts a new post deployment survey to validate the results. What is the expected outcome?

  • A. decreased channel overlap
  • B. increased cell size
  • C. increased received sensitivity
  • D. decreased client signal strength
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️

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Lakshan__97
6 months ago
Selected Answer: B
B is correct , deafult is -70dBm and now -65dBm which is increased that wil definetely increase the cell size as well since there is nothing mentioned about data rates limitations
upvoted 1 times
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crabb63
10 months, 3 weeks ago
Selected Answer: B
https://community.cisco.com/t5/wireless/radio-transmit-power-control-tpc-settings-power-threshold/td-p/977028
upvoted 1 times
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wili0001
2 years, 2 months ago
Selected Answer: A
I think is A chapter 6 pag.122. Figure 6-11
upvoted 2 times
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RSC357
2 years, 3 months ago
Default threshold is -70dBm. Range is from -50 to -80. Increase this value (ie between -70 -50) causes the AP to operate at higher transmit power rates. Decreasing the value has opposite effect B is correct
upvoted 1 times
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Ram0n_Aya1a
2 years, 6 months ago
-70 dBm is less power than -65 dBm. Engineer is increasing the power therefore Cell size is increased B is correct
upvoted 4 times
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ulfjvw
2 years, 6 months ago
Selected Answer: B
2nd neighbor should be 70, you configure 65. the cell will increase
upvoted 3 times
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NoobMonkey
2 years, 9 months ago
Selected Answer: B
More on cell size instead of channel overlapping
upvoted 2 times
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Liselot
2 years, 11 months ago
Selected Answer: B
The transmit power was tuned based on the 3rd AP ' hearing' the NDP advertisements at -70 dBm. When this threshold is changed to -65 dBm, the AP needs to increase the transmit power and that increases the cell size. It will also increase channel overlap not decrease.
upvoted 4 times
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Liselot
2 years, 11 months ago
The transmit power was tuned based on the 3rd AP ' hearing' the NDP advertisements at -70 dBm. When this threshold is changed to -65 dBm, the AP needs to increase the transmit power and that increases the cell size. It will also increase channel overlap not decrease. --> Answer B is correct
upvoted 2 times
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kthekillerc
2 years, 11 months ago
Provided answer is correct. By reducing the power threshold from the default 70 to 65 it is forcing the controller to ramp up the power levels to meet this requirement. When you increase the power levels you increase the cell size. Which in affect will do the opposite of your suggested answer and increase channel overlapping rather than decrease it. Please don't guestimate but rather Validate.
upvoted 4 times
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monkeyccie
3 years ago
I do think it is A as well
upvoted 2 times
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EGD
3 years ago
Selected Answer: A
I think it is A - because the default is -70, so -65 would decrease the Cell size and reduce overlap
upvoted 3 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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