NCTI - Installer Book Questions and Answers 2024/2025
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Course
NCTI
Institution
NCTI
Which of the following will strengthen signals as they move farther away from the headend
through the trunk express system?
B) Distribution amplifiers.
Which of the following describes a carrier wave?
B) A wave with a much higher frequency than the input signal.
Which of the following...
Which of the following twisted-pair cable types is the only one that is approved by certifying
bodies for data rates in excess of 10 Mbps?
A) CAT-5.
Which of the following is responsible for reducing crosstalk in twisted-pair cable?
A) Number of twists.
Wireless networks use low-power RF signals; therefore, which of the following is true about
signal strength?
A) The greater the distance between wireless devices, the lower the signal strength
and data rate.
Which of the following is true about Wi-Fi technology?
D) The connection between the router and modem is always wired.
What percentage does a cables attenuation increase or decrease for every 10° change in
temperature?
1%
Which of the following is a characteristic of high-definition television (HDTV)?
D) Audio surround sound using Dolby Digital technology.
Which type of screen display has been known to use a great deal of energy, can have a short
lifespan, but has high-contrast, vibrantly accurate color images?
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