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Exam N10-008 topic 1 question 381 discussion

Actual exam question from CompTIA's N10-008
Question #: 381
Topic #: 1
[All N10-008 Questions]

A Wi-Fi network was originally configured to be able to handle interference from a microwave oven. The microwave oven was recently removed from the office. Now the network administrator wants to optimize the system to maximize the range of the signal. The main sources of signal degradation are the numerous cubicles and wooden walls between the WAP and the intended destination. Which of the following actions should the administrator take?

  • A. Implement CDMA.
  • B. Change from omni to directional.
  • C. Change the SSID.
  • D. Change the frequency.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️

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AntonioTech
Highly Voted 1 year, 12 months ago
Selected Answer: D
Initially I thought it was B but it is D because: - the microwave was already removed from the office - the signal is OK now - Notice that the question mentions "numerous cubicles and wooden walls" - meaning the signal now won't have the interference as before - KEY POINT: the admin wants to "maximize the range of the signal:" Manually change the frequency to 2.4 GHz for more reliable speeds and range. While 5 GHz gives you a stronger signal, it doesn't travel through walls or ceilings as well, so it doesn't give you the best range.
upvoted 14 times
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Dima1993
Highly Voted 9 months, 1 week ago
Mehsotopes is a troll
upvoted 5 times
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BigDazza_111
Most Recent 7 months ago
Selected Answer: D
I'll take a D for Dog thanks Rachel. Once the microwave is ficked off, it will stop interfering on the 2.4GHz range. Lets change the freq. An extra 2.4 = deeper penetration
upvoted 1 times
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Jhonattan0032
1 year ago
Selected Answer: B
I think is B cuz the microwave have interferences with 2.4ghz and the microwave was remove.
upvoted 1 times
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Mehsotopes
1 year ago
Selected Answer: B
A directional antenna will allow you to decide where to transmit the frequency of the antenna for optimal performance in the area you want it. Changing frequency depends on what the frequency of the other access points & signals are which could already be used up.
upvoted 1 times
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Juliana1017
1 year, 4 months ago
Selected Answer: D
it is d, frequency
upvoted 1 times
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jamesjmw1
1 year, 5 months ago
Therefore, the best way to improve the range of the signal in this case is to change the antenna from omnidirectional to directional.
upvoted 1 times
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Lamboryota
1 year, 7 months ago
I guess the question did not clearly indicate the frequency that has been used initially. What if the frequency was already set to 2.4GHz before moving the microwave?
upvoted 1 times
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famco
1 year, 8 months ago
Answer is clearly D. The way to avoid interference from Microwave oven is to use a frequency that is not overlapping with it (so instead of 2.4 Ghz use 5 Ghz). Now that the Microwave is removed it can again use 2.4 Ghz frequency to penetrate through the numerous cubicles. Instead of asking what was done to avoid Microwave interference it is asking about what needs to be done after it is removed (so, which measure is to be removed). These are cases to prove ChatGPT is just a language model playing with words. So, don't blindly go with ChatGPT it is just a language model
upvoted 4 times
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Doaa81
1 year, 8 months ago
Selected Answer: D
D. Change the frequency.
upvoted 1 times
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Gustitute
1 year, 8 months ago
Selected Answer: D
My vote is on D as well because of the question mentions nothing about the WAP being placed in a location where a directional antenna would necessarily be a good option. It does mention, however, the microwave, which can interfere with 2.4 GHz signals (which have more range than 5GHz). Now that the microwave is gone though, they can switch the WAP to 2.4 GHz. With the given information, D is the best answer.
upvoted 2 times
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Cannnon
1 year, 9 months ago
Selected Answer: D
The Answer is D
upvoted 1 times
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[Removed]
1 year, 9 months ago
Selected Answer: B
Chat GPT says the answer is B. The correct answer is B. Change from omni to directional. Since the signal degradation is mainly due to obstacles such as cubicles and wooden walls, changing from an omnidirectional antenna to a directional antenna would help focus the signal strength towards the intended destination, increasing the range of the Wi-Fi signal. Implementing CDMA (option A) is a code-division multiple access technology that is used in cellular networks. It may not directly improve the range of the Wi-Fi signal. Changing the SSID (option C) is the name of the Wi-Fi network, and changing it may help with identifying the network, but it will not directly impact the range of the Wi-Fi signal. Changing the frequency (option D) is a valid solution when there is interference from other devices or Wi-Fi networks, but it may not directly address the signal degradation caused by obstacles in the office space.
upvoted 2 times
famco
1 year, 8 months ago
ChatGPT is a prompt based language model that can say things without self doubt. It is wrong. Look at my answer in comment. Answer is clearly D
upvoted 2 times
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MelzTheArtist
1 year, 10 months ago
B. Change from omni to directional. Using a directional antenna instead of an omni-directional antenna can help the administrator to direct the signal towards the intended destination and minimize interference from the cubicles and wooden walls. This will help to optimize the range of the signal and maximize the coverage.
upvoted 1 times
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BeauChateau
1 year, 11 months ago
Selected Answer: B
By changing from an omni-directional antenna to a directional antenna, the administrator is able to focus the signal in a specific direction. This allows the signal to travel farther and reach the intended destination with minimal degradation caused by the cubicles and wooden walls. This is the best option to improve the range of the signal.
upvoted 1 times
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AustinKelleyNet
2 years ago
Selected Answer: D
They are switching the frequency from 2.4 to 5.0
upvoted 2 times
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LeonardSnart
2 years ago
Selected Answer: D
The answer is D, as others have said. When the question says "microwave" we can assume it is interference with the 2.4GHz frequency band, and they were using the 5GHz frequency band which has poor(er) range. Now they can use the 2.4GHz band without that concern of interference. Anthony Sequeira "Microwave ovens: Older microwave ovens, which might not have sufficient shielding, can emit relatively high-powered signals in the 2.4GHz band, resulting in significant interference with WLAN devices operating in the 2.4GHz band."
upvoted 1 times
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