Troubleshooting Method
List the 4 steps of the troubleshooting method in order
Analyze, Isolate, Fix, Verify
Type of test that allows you to see ingress outside the normal frequency range
Spectrum/spectrum analyzer
Which Windows command is used to view the IP address of a computer?
IPConfig
What do we call the effect that occurs when the customer is hearing part of a voice conversation from another circuit on their circuit?
Crosstalk
Which of the following is commonly used by the technician to verify set-top box operation?
On-Screen Diagnostics
Asking the customer if all services are working to their satisfaction is part of what step?
Verify the fix
What are the correct MER and BER standards at the tap port for a 256-QAM carrier?
35dB and 1.0E-9
What utility does the technician use to check for latency with a particular website?
Continuous Ping
Which color wire should be matched up with the red colored wire when a CAT5 cable is spliced to a two-pair phone station wire?
the blue wire
In analog modulation, loss of signal quality seen by the customer can be _____________ but with digital modulation, loss of signal quality can be _____________.
Gradual, Sudden
Type of questions often require very short answers and are helpful in verifying the details about a situation
Close-ended
The unit of measure is used to measure a source of RF signal leakage
Microvolts Per Meter
What common devices can generate RF interference within the 2.4GHz and 5GHz ranges that might cause WiFi issues?
Bluetooth Devices
What symptom does a short circuit in telephone wiring cause?
no phones will work
Which household item can overcome set-top box shielding causing interference to certain channels
4G phones
Predict what the transmit level should be at the tap assuming that the RG-11 between the ground block and tap is in good condition. The transmit level at the ground block is 35.2 dBmv. The RG-11 is 240’ and should lose about .75 dB per 100’ @ 30 mhz
33.4 dBmv
Distortion of carriers by a 60 Hz or 120 Hz voltage
Hum Modulation
When troubleshooting a complaint about poor download speeds, you should use this specialized test through ethernet
Internet Speed Test
Three factors that greatly affect VoIP results
Delay, Jitter, Packet Loss
The video is AM, the audio is FM and phase modulation controls the color. What is being described?
an Analog Television Channel
Forward RF is below specifications at a wall plate but above specifications at the ground block. What should be done next?
Calculate the loss that should be occurring between ground block and wall plate
During the performance of a DOCSIS test, the SLM's built-in modem performs "ranging" with the ________, just like a customer's cable modem.
CMTS
Cable Modem Termination System
What is tested when the technician pings the loopback address (127.0.0.1)?
The NIC(Network Interface Card)
If the customer has additional questions about their Spectrum Voice services, what two places can the technician direct them for more information?
and 611
A customer is experiencing two black bars on their video display. What setting could help to remove them?
Aspect Ratio