NCTI Test Questions With Well
Explained Answers 2023
Why have 900 MHz Industrial, Scientific, and Medical (ISM) band wireless local area
networks (WLAN) lost favor in comparison to 2.4 GHz and 5 GHz frequency systems -
Answer900 MHz devices are more expensive and provide slower data throughput
What is the Federal Communications Commission (FCC) regulation for the maximum
EIRP from a point to multipoint (P22P) wireless local area network (WLAN) antenna -
Answer4 Watts
Operation as an IEEE 802.11ac device occurs only in the 5 GHz Unlicensed National
Information Infrastructure (U-NII) radio band, so how are 802.11ac devices able to
maintain compatibility with earlier standards that operate in the 2.4 GHz Industrial,
Scientific, and Medical (ISM) radio bands - AnswerIEEE 802.11ac devices also
operates in the 2.4 GHz ISM range
Which of the following statements is true concerning Bluetooth tech - AnswerTo IEEE
802.11 networks operating in the 2.4 Industrial, Scientific, and Medical (ISM) radio
bands, Bluetooth transmissions appear as all-band noise
What is the maximum range of Class 2, 2.5 mW Bluetooth devices - Answer10 meters
or 33 Feet
Bluetooth uses which spread spectrum tech - AnswerFrequency Hopping Spread
Spectrum (FHSS)
Bluetooth is a short range wireless personal area network (WPAN) tech that is covered
under which Institute of Electrical and Electronics Engineers (IEEE) standard -
AnswerIEEE 802.15
What tech does the IEEE 802.11n wireless standard use to achieve data rates as high
as 600 Mbps - AnswerMultiple input, multiple output (MIMO) tech and spatial
multiplexing
What does the Institute of Electrical and Electronics Engineers (IEEE) specify as the
maximum allowable power output into the intentional radiator for IEEE 802.11a,
802.11n, and 802.11ac compliant devices operating on the lower Unlicensed National
Information infrastructure UNII radio band - Answer40 mW
How wide is each of the three WLAN UNII bands - Answer100 MHz
Explained Answers 2023
Why have 900 MHz Industrial, Scientific, and Medical (ISM) band wireless local area
networks (WLAN) lost favor in comparison to 2.4 GHz and 5 GHz frequency systems -
Answer900 MHz devices are more expensive and provide slower data throughput
What is the Federal Communications Commission (FCC) regulation for the maximum
EIRP from a point to multipoint (P22P) wireless local area network (WLAN) antenna -
Answer4 Watts
Operation as an IEEE 802.11ac device occurs only in the 5 GHz Unlicensed National
Information Infrastructure (U-NII) radio band, so how are 802.11ac devices able to
maintain compatibility with earlier standards that operate in the 2.4 GHz Industrial,
Scientific, and Medical (ISM) radio bands - AnswerIEEE 802.11ac devices also
operates in the 2.4 GHz ISM range
Which of the following statements is true concerning Bluetooth tech - AnswerTo IEEE
802.11 networks operating in the 2.4 Industrial, Scientific, and Medical (ISM) radio
bands, Bluetooth transmissions appear as all-band noise
What is the maximum range of Class 2, 2.5 mW Bluetooth devices - Answer10 meters
or 33 Feet
Bluetooth uses which spread spectrum tech - AnswerFrequency Hopping Spread
Spectrum (FHSS)
Bluetooth is a short range wireless personal area network (WPAN) tech that is covered
under which Institute of Electrical and Electronics Engineers (IEEE) standard -
AnswerIEEE 802.15
What tech does the IEEE 802.11n wireless standard use to achieve data rates as high
as 600 Mbps - AnswerMultiple input, multiple output (MIMO) tech and spatial
multiplexing
What does the Institute of Electrical and Electronics Engineers (IEEE) specify as the
maximum allowable power output into the intentional radiator for IEEE 802.11a,
802.11n, and 802.11ac compliant devices operating on the lower Unlicensed National
Information infrastructure UNII radio band - Answer40 mW
How wide is each of the three WLAN UNII bands - Answer100 MHz
