FIELD TECH 2 TO 3 ALL 2026 STUDY GUIDE QUESTIONS
AND ANSWERS GUARANTEE A+
✔✔Which organization regulates the use of wireless local area network (WLAN) devices
in the United States? - ✔✔The Federal Communications Commission (FCC).
✔✔Which of the following IEEE 802.11 wireless local area network (WLAN) standards
specifies both spread spectrum RF and infrared (IR) transmission technologies? -
✔✔802.11
✔✔Why has it become cost-effective for enterprise companies to integrate wireless
local area network (WLAN) segments into their networks? - ✔✔The cost of wireless
technology has decreased and the quality has increased.
✔✔Which one of the following wireless standards utilizes the 5 gigahertz (GHz)
frequency band for its signal transmissions? - ✔✔802.11n
✔✔Why are wireless local area networks (WLAN) usually deployed in an access
capacity instead of as the network's core layer? - ✔✔WLANs are generally incapable of
meeting the requirements of the network core layer, which needs to be very fast and
stable, able to handle a tremendous amount of traffic with little difficulty, and must
experience no down time.
✔✔In which Open Systems Interconnection (OSI) reference model layer do wireless
local area networks (LAN) operate? - ✔✔The Data Link Layer.
✔✔What type of connectivity is needed to connect networks between two buildings
located across the street from each other? - ✔✔Point-to-point (P2P).
✔✔In which of the following applications might a wireless local area network (WLAN) be
deployed in a distribution layer role? - ✔✔As a building-to-building bridge used to link
corporate network segments.
✔✔What specific problem does a wireless local area network (WLAN) resolve for
corporations and home users? - ✔✔Excessive data cabling.
✔✔What challenges do Wireless Internet Service Providers (WISP) have to overcome
in order to provide "last mile data delivery" to customers? - ✔✔Distance to access
points (AP), rooftop access, lightning, trees, mountains, tower access, and other
physical obstacles to connectivity.
✔✔In what manner do radio waves propagate (move) away from the source (antenna)?
- ✔✔In a straight line in all directions at once.
, ✔✔Which one of the following radio frequency (RF) behaviors is defined as "the
bending of a wave as it passes through a medium of different density"? - ✔✔Refraction.
✔✔Which of the voltage standing wave ratios (VSWR) shown below is best for
transferring radio frequency (RF) energy between connections? - ✔✔1.2:1
✔✔What are some measures that can be taken to prevent high voltage standing wave
ratios (VSWR) in transmitters and receivers? - ✔✔Tighten connections between cables
and connectors and use impedance-matched hardware throughout.
✔✔How does radio frequency line-of-sight (RF LOS) differ from visual LOS? - ✔✔RF
LOS is accompanied by a Fresnel Zone, a series of concentric ellipsoid-shaped areas
around the visual LOS path.
✔✔Why is the Fresnel Zone important to the integrity of the radio frequency (RF) link or
path? - ✔✔The Fresnel Zone defines an area around the RF line-of-sight (RF LOS) that
can introduce RF signal interference if blocked.
✔✔What is Equivalent Isotropically Radiated Power (EIRP)? - ✔✔The power actually
radiated by the antenna element.
✔✔What unit of measurement is used to express the gain of an antenna? - ✔✔Decibels
isotropic (dBi).
✔✔Given an access point (AP) with 100 milliwatts (mW) of output power connected
through a cable with 3 decibels (dB) of loss to the antenna with a 10 decibels isotropic
(dBi) gain, what is the approximate Equivalent Isotropically Radiated Power (EIRP) level
from the antenna in milliwatts (mW)? - ✔✔* (WRONG)100 mW
✔✔A transmitter outputs 100 milliwatts (mW). An antenna cable connects the
transmitter to an amplifier, and the power into the amplifier's input measures 50 mW.
The amplifier increases the signal to the original transmitter's power level and sends the
signal to the antenna. The antenna receives the signal from the amplifier at 75 mW, and
then transmits at 150 mW. What is the intentional radiator's (IR) power level in this radio
frequency (RF) circuit? - ✔✔75 mW
✔✔Which of the following networks or products use spread spectrum technologies? -
✔✔Wireless local area networks (WLAN), Bluetooth, and global positioning systems
(GPS).
AND ANSWERS GUARANTEE A+
✔✔Which organization regulates the use of wireless local area network (WLAN) devices
in the United States? - ✔✔The Federal Communications Commission (FCC).
✔✔Which of the following IEEE 802.11 wireless local area network (WLAN) standards
specifies both spread spectrum RF and infrared (IR) transmission technologies? -
✔✔802.11
✔✔Why has it become cost-effective for enterprise companies to integrate wireless
local area network (WLAN) segments into their networks? - ✔✔The cost of wireless
technology has decreased and the quality has increased.
✔✔Which one of the following wireless standards utilizes the 5 gigahertz (GHz)
frequency band for its signal transmissions? - ✔✔802.11n
✔✔Why are wireless local area networks (WLAN) usually deployed in an access
capacity instead of as the network's core layer? - ✔✔WLANs are generally incapable of
meeting the requirements of the network core layer, which needs to be very fast and
stable, able to handle a tremendous amount of traffic with little difficulty, and must
experience no down time.
✔✔In which Open Systems Interconnection (OSI) reference model layer do wireless
local area networks (LAN) operate? - ✔✔The Data Link Layer.
✔✔What type of connectivity is needed to connect networks between two buildings
located across the street from each other? - ✔✔Point-to-point (P2P).
✔✔In which of the following applications might a wireless local area network (WLAN) be
deployed in a distribution layer role? - ✔✔As a building-to-building bridge used to link
corporate network segments.
✔✔What specific problem does a wireless local area network (WLAN) resolve for
corporations and home users? - ✔✔Excessive data cabling.
✔✔What challenges do Wireless Internet Service Providers (WISP) have to overcome
in order to provide "last mile data delivery" to customers? - ✔✔Distance to access
points (AP), rooftop access, lightning, trees, mountains, tower access, and other
physical obstacles to connectivity.
✔✔In what manner do radio waves propagate (move) away from the source (antenna)?
- ✔✔In a straight line in all directions at once.
, ✔✔Which one of the following radio frequency (RF) behaviors is defined as "the
bending of a wave as it passes through a medium of different density"? - ✔✔Refraction.
✔✔Which of the voltage standing wave ratios (VSWR) shown below is best for
transferring radio frequency (RF) energy between connections? - ✔✔1.2:1
✔✔What are some measures that can be taken to prevent high voltage standing wave
ratios (VSWR) in transmitters and receivers? - ✔✔Tighten connections between cables
and connectors and use impedance-matched hardware throughout.
✔✔How does radio frequency line-of-sight (RF LOS) differ from visual LOS? - ✔✔RF
LOS is accompanied by a Fresnel Zone, a series of concentric ellipsoid-shaped areas
around the visual LOS path.
✔✔Why is the Fresnel Zone important to the integrity of the radio frequency (RF) link or
path? - ✔✔The Fresnel Zone defines an area around the RF line-of-sight (RF LOS) that
can introduce RF signal interference if blocked.
✔✔What is Equivalent Isotropically Radiated Power (EIRP)? - ✔✔The power actually
radiated by the antenna element.
✔✔What unit of measurement is used to express the gain of an antenna? - ✔✔Decibels
isotropic (dBi).
✔✔Given an access point (AP) with 100 milliwatts (mW) of output power connected
through a cable with 3 decibels (dB) of loss to the antenna with a 10 decibels isotropic
(dBi) gain, what is the approximate Equivalent Isotropically Radiated Power (EIRP) level
from the antenna in milliwatts (mW)? - ✔✔* (WRONG)100 mW
✔✔A transmitter outputs 100 milliwatts (mW). An antenna cable connects the
transmitter to an amplifier, and the power into the amplifier's input measures 50 mW.
The amplifier increases the signal to the original transmitter's power level and sends the
signal to the antenna. The antenna receives the signal from the amplifier at 75 mW, and
then transmits at 150 mW. What is the intentional radiator's (IR) power level in this radio
frequency (RF) circuit? - ✔✔75 mW
✔✔Which of the following networks or products use spread spectrum technologies? -
✔✔Wireless local area networks (WLAN), Bluetooth, and global positioning systems
(GPS).
