1|Page
CIT 345 FINAL EXAM NEWEST 2025/2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
Which sublayer of the OSI model's Data-Link layer is used for
communication between 802.11 radios? - ANSWER-C. MAC
While performing some research Janie comes across a reference
to a document titled RFC3935. Which of the following
organization's website would be best to further research this
document? - ANSWER-E. IETF
The Wi-Fi Alliance is responsible for which of the following
certification programs? - ANSWER-D. WMM
Which wave properties can be modulated to encode data?
(Choose all that apply.) - ANSWER-A. Amplitude B. Frequency C.
Phase
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The IEEE 802.11-2007 standard defines communication
mechanisms at which layers of the OSI model? (Choose all that
apply.) - ANSWER-B. Physical E. Data-Link
The height or power of a wave is known as what? - ANSWER-C.
Amplitude
Samantha received a gaming system as a gift. She would like to
have it communicate with her sister Jennifer's gaming system so
that they can play against each other. Which of the following
technologies if deployed in the two gaming systems, should
provide for the easiest configuration of the two systems to
communicate with each other?, - ANSWER-B. Wi-Fi Direct
A modulated signal capable of carrying data is known as what? -
ANSWER-D. Carrier signal
Which of the following wireless communications parameters and
usage are typically governed by a local regulatory authority?
(Choose all that apply.) - ANSWER-A. Frequency B. Bandwidth C.
,3|Page
Maximum transmit power D. Maximum EIRP E. Indoor/outdoor
usage
The Wi-Fi Alliance is responsible for which of the following
certification programs? - ANSWER-B. Voice Personal E. WMM-
PS
A wave is divided into degrees. How many degrees make up a
complete wave? - ANSWER-D. 360
What are the advantages of using unlicensed frequency bands for
RF transmissions? (Choose all that apply.) - ANSWER-B. There is
no additional financial cost. C. Anyone can use the frequency
band.
The OSI model consists of how many layers? - ANSWER-C.
Seven
What are some results of multipath interference? (Choose all that
apply.) - ANSWER-B. Upfade C. Excessive retransmissions
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What term best defines the linear distance traveled in one
positive-to-negative-to-positive oscillation of an electromagnetic
signal? - ANSWER-D.Wavelength
Which of the following statements are true about amplification?
(Choose all that apply.) - ANSWER-B. RF amplifiers require an
outside power source. C. Antennas are passive gain amplifiers
that focus the energy of a signal in one direction. E. Signal
strength may passively increase because of multipath upfade.
A standard measurement of frequency is called what? -
ANSWER-A. Hertz
When an RF signal bends around an object this propagation
behavior is known as what?, - ANSWER-D. Diffraction
When the multiple RF signals arrive at a receiver at the same time
and are with the primary wave the result can be of the primary
signal., - ANSWER-F. 180 degrees out of phase, cancellation
CIT 345 FINAL EXAM NEWEST 2025/2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
Which sublayer of the OSI model's Data-Link layer is used for
communication between 802.11 radios? - ANSWER-C. MAC
While performing some research Janie comes across a reference
to a document titled RFC3935. Which of the following
organization's website would be best to further research this
document? - ANSWER-E. IETF
The Wi-Fi Alliance is responsible for which of the following
certification programs? - ANSWER-D. WMM
Which wave properties can be modulated to encode data?
(Choose all that apply.) - ANSWER-A. Amplitude B. Frequency C.
Phase
,2|Page
The IEEE 802.11-2007 standard defines communication
mechanisms at which layers of the OSI model? (Choose all that
apply.) - ANSWER-B. Physical E. Data-Link
The height or power of a wave is known as what? - ANSWER-C.
Amplitude
Samantha received a gaming system as a gift. She would like to
have it communicate with her sister Jennifer's gaming system so
that they can play against each other. Which of the following
technologies if deployed in the two gaming systems, should
provide for the easiest configuration of the two systems to
communicate with each other?, - ANSWER-B. Wi-Fi Direct
A modulated signal capable of carrying data is known as what? -
ANSWER-D. Carrier signal
Which of the following wireless communications parameters and
usage are typically governed by a local regulatory authority?
(Choose all that apply.) - ANSWER-A. Frequency B. Bandwidth C.
,3|Page
Maximum transmit power D. Maximum EIRP E. Indoor/outdoor
usage
The Wi-Fi Alliance is responsible for which of the following
certification programs? - ANSWER-B. Voice Personal E. WMM-
PS
A wave is divided into degrees. How many degrees make up a
complete wave? - ANSWER-D. 360
What are the advantages of using unlicensed frequency bands for
RF transmissions? (Choose all that apply.) - ANSWER-B. There is
no additional financial cost. C. Anyone can use the frequency
band.
The OSI model consists of how many layers? - ANSWER-C.
Seven
What are some results of multipath interference? (Choose all that
apply.) - ANSWER-B. Upfade C. Excessive retransmissions
, 4|Page
What term best defines the linear distance traveled in one
positive-to-negative-to-positive oscillation of an electromagnetic
signal? - ANSWER-D.Wavelength
Which of the following statements are true about amplification?
(Choose all that apply.) - ANSWER-B. RF amplifiers require an
outside power source. C. Antennas are passive gain amplifiers
that focus the energy of a signal in one direction. E. Signal
strength may passively increase because of multipath upfade.
A standard measurement of frequency is called what? -
ANSWER-A. Hertz
When an RF signal bends around an object this propagation
behavior is known as what?, - ANSWER-D. Diffraction
When the multiple RF signals arrive at a receiver at the same time
and are with the primary wave the result can be of the primary
signal., - ANSWER-F. 180 degrees out of phase, cancellation
