Spectrum Field Tech Verified Questions with 100 Correct Answers Graded A

Spectrum Field Tech Exam Questions with | Fully Solved and Verified if working properly, which has more signal loss, 100' of rg6 or 200' of rg11? - answer - 200' of rg11 Arial cable atenuates more than underground or interior cable. True or false - answer - False In regards to the frequency spectrum, where does the return path or sub band sit? - answer - Between 5 and 42 MHZ what is the function of Chanel check? - answer - To check signal levels If working properly, what cable will lose more signal, rg6 or rg11? - answer - rg6 when working on the cable network as a new hire technician, we are responsible for __________ - answer - The area from the tap to the cpe. what does BER stand for? - answer - Bit Error Rate What is the ideal BER reading range? What is the tolerance? - answer - Ideal: 1.0E-9 tolerance: 1.0E-7 to 1.0E-9 Break down BER - answer - 1 error in 1 billion bits Egress - answer - signal leaking from the line What is the function of the Headend? - answer - The headend is where all the information gets sent out. It's the Master facility for receiving all of the television signals. By design, what should the operational signal levels be at the cpe on the down stream? - answer - -10 to 12 What does DOCSIS stand for? - answer - Data over cable service interface specifications How wide is a signal analog channel? - answer - 6 MHZ wide, Only 1 analog channel can fit, and 8-12 digital channels due to compression What is the purpose of channel bonding? - answer - it increases throughput or bandwidth. came out with DOCSIS 3.0 What modulation scheme uses two waveforms phase shifted 90° apart on identical frequencies? - answer - QAM What is the relative measurement between two absolute points? - answer - decibel (dB) When an ISA's internal gains equal it's passive losses, then what is the result on the output? - answer - 0 gain Define 1 Hertz - answer - 1 cycle per 1 second what does a signal of 0 dBmV mean? - answer - 1 milli-volt measured across 75 ohms of impedance if you discover an issue with power or ground, what would be your next steps? - answer - stop work, notify your supervisor and customer. The shielding on the coax cable keeps the cable network ________. - answer - closed What is composite or RCA cable? - answer - cable with red, white, and yellow connectors. What is component cable? - answer - like composite or RCA cables but has additional connectors. usually 5 in total. 256 QAM constellation - answer - 256 is represented by 256 decision boundaries, and a healthy image is represented by the fact that all the dots are centered and aligned with each other. when attaching a span clamp to a mid-span, how should it be positioned? - answer - Facing the house, opening up How long is a standard reel of fish tape? - answer - 25 feet. It's used to fish cable through a wall. What is the use of a security shield tool? - answer - Used to connect a drop cable to the tap port through a shield fitting. What are the best practices when connecting phone wires with a scotch lock? - answer - Push wires all yhe way in. Crimp down flush. One wire per hole. Where does a spectrum analyzer check for noise or ingress? - answer - 5-42 MHZ, which is the sub band When would you use a Banjo adapter? - answer - when testing phone lines. How do you connect phone lines when checking with a banjo adapter? - answer - Line one: connect red to red and black to green. Line two: connect red to yellow and black to black Name three bonding solutions. - answer - Fargo clamp, Galvanized bonding strap, IBT (intersystem bonding terminal) A VOM connected to a piece of RG-6 cable shows a resistance of 12 ohms, how long in feet is the RG'6 cable? What process do you use to find this? - answer - DC loop resistance If the electrical meter is 45' away from the home you may use a ___________. - answer - Trailer beam clamp Name the components of a typical coax cable. - answer - jacket, braiding/shielding, dielectric, center cond