SCTE 2 to 3 Exam Questions and
Answers
Which access point (Ap) uses a wireless mesh topology to connect clients? - Answer-Cooperative
What frequency does the U- NII-3 band operate at? - Answer-5.725 GHz - 5.825 GHz
True or False: Wifi extenders are used to amplify signals for a Wi-Fi coverage area. - Answer-True
How many ISM channels exist in the 2.4 GHz Wi-Fi spectrum? - Answer-14
Which wireless technology provides a short range RF technology under the IEEE standard 802.15? -
Answer-Bluetooth
What spectrum is typically used for LTE cellular signals? - Answer-600 MHz
How many U-NII bands are available to Wi-Fi (not including 802.11ax) - Answer-4
,Which statement is false about wireless plant extension products? - Answer-Operate in point to point
mode at 10 miles
Which of the following organizations is responsible for creating wifi standards? - Answer-IEEE
What are the two frequencies that current customer Wi-Fi networks use in the electromagnetic
spectrum? - Answer->2GHz and <2.5 GHz
>5GHz and <6 GHz
What frequency range does the IEEE 802.11g standard WLANs operate? - Answer-2.4 - 2.483 GHz
What wireless frequency range does Bluetooth operate at? - Answer-2.400 GHz to 2.4835 GHz
According to the IEEE 802.11a amendment, which of the following data rates are mandatory? - Answer-
6, 9, and 24 Mbps
Which two channels are considered non-overlapping in the 2.4 GHz frequency band? - Answer-1 and 6
How wide is each IEEE 802.11n channel? - Answer-20 MHz
Considered a key differentiator from 802.11n, what feature of 802.11ac provides simultaneous
downstream transmitters from the AP? - Answer-MU-MIMO
True or false: the IEEE 802.11n specification added the support for MU-MIMO. - Answer-False
What is the highest order of modulation that is supported by the IEEE 802.11ac standard - Answer-256
QAM
, What is the maximum speed supported by IEEE 802.11ac wave 1? - Answer-1300 Mbps
How many spatial streams are supported in the 2.4 GHz band in IEEE 802.11ax? - Answer-4
How are wavelength and frequency related to one another? - Answer-Wavelength and frequency are
opposite of each other - the higher the frequency the shorter the wavelength
What happens with the data rate within a wireless network - Answer-Fluctuates, primarily based on the
signal to noise ratio
which 802.11 standard uses HT-OFDM to achieve its maximum data rate? - Answer-802.11ax
Which of the following references two RF signals of different power levels? - Answer-Amplitude
True or false: most cable subscriber Wi-Fi access points use full wave dipole antennas. - Answer-False
What is the behavior when a wireless RF signal bounces off a smooth non-absorptive surface? - Answer-
Reflection
What is the behavior when a wireless RF signal passes between a media of different densities and
changing the speeds or bend the signal - Answer-Refraction
How many cycles or oscillations in a wavelength? - Answer-1
How many bits are transmitted per symbol using 256 QAM at the physical layer of Wi-Fi? - Answer-8
Answers
Which access point (Ap) uses a wireless mesh topology to connect clients? - Answer-Cooperative
What frequency does the U- NII-3 band operate at? - Answer-5.725 GHz - 5.825 GHz
True or False: Wifi extenders are used to amplify signals for a Wi-Fi coverage area. - Answer-True
How many ISM channels exist in the 2.4 GHz Wi-Fi spectrum? - Answer-14
Which wireless technology provides a short range RF technology under the IEEE standard 802.15? -
Answer-Bluetooth
What spectrum is typically used for LTE cellular signals? - Answer-600 MHz
How many U-NII bands are available to Wi-Fi (not including 802.11ax) - Answer-4
,Which statement is false about wireless plant extension products? - Answer-Operate in point to point
mode at 10 miles
Which of the following organizations is responsible for creating wifi standards? - Answer-IEEE
What are the two frequencies that current customer Wi-Fi networks use in the electromagnetic
spectrum? - Answer->2GHz and <2.5 GHz
>5GHz and <6 GHz
What frequency range does the IEEE 802.11g standard WLANs operate? - Answer-2.4 - 2.483 GHz
What wireless frequency range does Bluetooth operate at? - Answer-2.400 GHz to 2.4835 GHz
According to the IEEE 802.11a amendment, which of the following data rates are mandatory? - Answer-
6, 9, and 24 Mbps
Which two channels are considered non-overlapping in the 2.4 GHz frequency band? - Answer-1 and 6
How wide is each IEEE 802.11n channel? - Answer-20 MHz
Considered a key differentiator from 802.11n, what feature of 802.11ac provides simultaneous
downstream transmitters from the AP? - Answer-MU-MIMO
True or false: the IEEE 802.11n specification added the support for MU-MIMO. - Answer-False
What is the highest order of modulation that is supported by the IEEE 802.11ac standard - Answer-256
QAM
, What is the maximum speed supported by IEEE 802.11ac wave 1? - Answer-1300 Mbps
How many spatial streams are supported in the 2.4 GHz band in IEEE 802.11ax? - Answer-4
How are wavelength and frequency related to one another? - Answer-Wavelength and frequency are
opposite of each other - the higher the frequency the shorter the wavelength
What happens with the data rate within a wireless network - Answer-Fluctuates, primarily based on the
signal to noise ratio
which 802.11 standard uses HT-OFDM to achieve its maximum data rate? - Answer-802.11ax
Which of the following references two RF signals of different power levels? - Answer-Amplitude
True or false: most cable subscriber Wi-Fi access points use full wave dipole antennas. - Answer-False
What is the behavior when a wireless RF signal bounces off a smooth non-absorptive surface? - Answer-
Reflection
What is the behavior when a wireless RF signal passes between a media of different densities and
changing the speeds or bend the signal - Answer-Refraction
How many cycles or oscillations in a wavelength? - Answer-1
How many bits are transmitted per symbol using 256 QAM at the physical layer of Wi-Fi? - Answer-8
