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NCTI WIFI question with correct answers graded A+ 2023 updated to pass
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NCTI WIFI question with correct answers graded A+ 2023 updated to passNotes Single input, single output (SISO) - Most systems have one radio and one antenna, and some systems have one radio and two antennas. Multiple input, multiple output (MIMO) - These systems use multiple radio chains in a sin...

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  • July 17, 2023
  • 12
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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  • ncti wifi question with correct answers graded a
  • test one question 1 multiple choice choose 1 a
  • question 2 multiple choice choose 1 answer whi
  • question 3 multiple choice choose 1 answer whi

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NCTI WIFI question with correct answers
graded A+ 2023 updated to pass
Notes

Single input, single output (SISO) - Most systems have one radio and one antenna, and some systems
have one radio and two antennas.

Multiple input, multiple output (MIMO) - These systems use multiple radio chains in a single wireless
chipset.

Multi-user MIMO (MU-MIMO) - These systems use each radio chain on an access point to transmit to a
unique client.Correct answer:

Wired Equivalent Protection (WEP) - This type of security setup should never be used for a wireless
network as it can be quickly be broken.

WPA/WPa2 -Personal - This type of security uses an 8-63 character passphrase that all network users
share.

WPA/WPA2-Enterprise - In this type of security setup, everyone has a unique username and password,
which allows IT departments to track individual users and reset unique user passwords without having to
change the passphrase for the entire network.

Wi-Fi Protected Setup (WPS) - This type of security setup allows new devices to be added to a network
with a button press or an 8-digit PIN number.



test one

Question #1: Multiple Choice - choose 1 answer

Which modulation scheme works by varying the height, or loudness, of a wave to convey information?



B) Amplitude modulation (AM).




Question #2: Multiple Choice - choose 1 answer

Which modulation scheme works by adjusting the length of a wave to convey information?



B) Frequency modulation (FM).

, Question #3: Multiple Choice - choose 1 answer

Which IEEE standard specifies media access and Physical Layer specifications for wireless connectivity
between fixed, portable, and moving stations within a local area?




C) 802.11.



Question #4: Multiple Choice - choose 1 answer

Which IEEE 802.11 amendment is a 5 GHz-only standard that can theoretically reach 7 Gbps?

A) 802.11ac.




Question #5: Multiple Choice - choose 1 answer

Which of the following is an example of a wide area network (WAN)?



B) The Internet.




Question #6: Multiple Choice - choose 1 answer

Which of the following handles the long distance wide area network (WAN) communication link with the
Internet service provider or managed services operator?



C) Modem.




Question #7: Multiple Choice - choose 1 answer

What connects wireless client devices, such as laptops, phones, tablets, and media players to the wired
network?

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