WGU D413 Telecommunications & Wireless
Communications Objective Assessment Final Actual
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What is one advantage of fiber-optic cables?
Fiber-optic cables can be used in safety-critical places.
Fiber-optic cables can be installed cheaply and quickly.
Fiber-optic cables can be tensioned without resulting in
damage.
Fiber-optic cables can be used over mobile
communication links. - Answer-Fiber-optic cables can be
used in safety-critical places.
What is one drawback of fiber-optic cable?
It contains fragile components.
It has high attenuation.
It cannot be used in dangerous places.
It performs poorly over long distances. - Answer-It
contains fragile components.
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What is one type of waveform used to transmit
electromagnetic signals in wireless media?
Radio waves
Ultraviolet waves
Thermal waves
Gamma waves - Answer-Radio waves
What is the wireless service that enables people to have
access to mobile internet?
Cellular digital packet data (CDPD)
Bluetooth
Ethernet
Wireless Application Protocol (WAP) - Answer-Cellular
digital packet data (CDPD)
Which waves have higher frequencies than infrared
transmission frequencies?
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Visible light waves
Microwaves
Radio waves
Electromagnetic waves - Answer-Visible light waves
Which type of waves are used in Bluetooth transmission?
Low-power radio waves
High-power radio waves
Low-power ultraviolet waves
High-power ultraviolet waves - Answer-Low-power radio
waves
What is a source of industrial noise?
Electric motors
Lightning
Crosstalk
Electron movement - Answer-Electric motors