Technology Overview
21 important questions on Technology Overview
In a broadband cable network, which administrative groups maintains communication with installers, construction and maintenance technician, and the customer service departments?
In the United States, downstream broadband RF Signals traveling inside coaxial cable begin at what frequency?
What are the typical RF signal frequencies in the upstream path?
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Where on the electromagnetic spectrum chart are the fiber-optic frequencies used in broadband cable systems located?
What are the typical wavelengths for light transmission over fiber cable
What is bandwidth? How is the bandwidth of an analog or digital channel determined?
What bandwidth has an over-the-air TV Channel?
How is NTSC composed?
What is the bandwidth of the return path
How is the impedance 75 ohms of the cable determined
What are the 5 factors that affect cable attenuation
2. Frequency = higher more "
3. Distance = longer more
4. Temperature = higher more attenuation
5. Dielectric material = harder more attenuation
Why is it important for the broadband cable technician to understand radio frequency (RF) characteristics?
List definitions for Ohm's law, voltage, current, resistance, and power.
What is the typically used to represent computer characters or words?
What is the difference between the base-10 and base-2 numbering systems?
What does the digital television picture look like when it is impaired? How does the cable technician know if the signal is failing?
How are RF signals measured in the cable industry?
What analog TV impairments are no longer problems in digital video?
What happens as RF signals travels over cable
What type of traffic is transported over a broadband cable network return path?
What are the 3 factors that determine a conductor's resistance
The question on the page originate from the summary of the following study material:
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- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
