Broadband Premises Troubleshooting 2 || All Solved.
What is a 'dry drop' (or test drop) and why is it useful in isolating high-speed data issues? correct
answers A dry drop is a length of coax cable that you know works perfectly, eliminating the
possibility of any part of the drop from impacting the RF signal. Correct
True or False: If you can successfully PING from a home computer to the home router, but not
successfully PING the default gateway, then it means the problem is with the home LAN. correct
answers false
True or False: If your test equipment shows a voice quality rating (MOS/R-Factor/PESQ) that is
at or near the lowest number possible, this means that the call quality issues are minimal to non-
existent. correct answers false
SNMP is a TCP/IP protocol for managing what? correct answers used for managing IP devices
on networks
True or False: If the RF signal level is within specifications, you do not need to check any other
signal performance metrics such as MER and BER. correct answers false
What is ghosting, and why is it seldom seen in modern cable networks? correct answers a copy
of a video image that is offset to the left or right and is often weaker than the original image
True or False: H-DSAs and SLMs never fail, and, thus, you should not waste your time checking
their noise floors prior to an ingress test. correct answers false
True or False: Discuss the problem customers are having with their service with them in order to
fully understand, as best they can describe it, what the trouble is. correct answers true
Which is NOT a common issue with customer-owned equipment? correct answers poor RF
signal power levels
, What four things do the LEDs on a cable modem or eMTA typically show? correct answers
upstream, downstream, power operation, LAN connectivity
Once you verify that you can make and receive calls thorough the eMTA using your test
equipment, any problems the customer has making calls are most likely caused by what? correct
answers a jack with a loose, wet, dirty or poor connection tip and ring polarity reversed
Robotic sounding voice and drop outs on VoIP telephone service are caused by what two network
degradations? correct answers RF signal issues, HFC network performance
True or False: CM or eMTA equipment failures account for less than 1% of high-speed data
and/or VoIP telephony problems. correct answers true
True or false: With a loop through method of pre-wiring, each unit in the MDU would have to
have the same type of services. correct answers true
True or false: A Right of Entry (ROE) agreement is the legal agreement that allows the service
provider to access private property for the purpose of providing broadband services to MDU
residents. correct answers true
At what point in construction is a complex wired for telecommunications? correct answers At the
same time as the electrical wiring is being installed
How are additional outlets provided to a resident in a Garden Style MDU? correct answers
Additional outlets can be wired by adding an additional splitter either inside the unit or on the
outside wall.
Privileges to route additional wiring outside a unit are controlled by ___________ . correct
answers an easement
What is a 'dry drop' (or test drop) and why is it useful in isolating high-speed data issues? correct
answers A dry drop is a length of coax cable that you know works perfectly, eliminating the
possibility of any part of the drop from impacting the RF signal. Correct
True or False: If you can successfully PING from a home computer to the home router, but not
successfully PING the default gateway, then it means the problem is with the home LAN. correct
answers false
True or False: If your test equipment shows a voice quality rating (MOS/R-Factor/PESQ) that is
at or near the lowest number possible, this means that the call quality issues are minimal to non-
existent. correct answers false
SNMP is a TCP/IP protocol for managing what? correct answers used for managing IP devices
on networks
True or False: If the RF signal level is within specifications, you do not need to check any other
signal performance metrics such as MER and BER. correct answers false
What is ghosting, and why is it seldom seen in modern cable networks? correct answers a copy
of a video image that is offset to the left or right and is often weaker than the original image
True or False: H-DSAs and SLMs never fail, and, thus, you should not waste your time checking
their noise floors prior to an ingress test. correct answers false
True or False: Discuss the problem customers are having with their service with them in order to
fully understand, as best they can describe it, what the trouble is. correct answers true
Which is NOT a common issue with customer-owned equipment? correct answers poor RF
signal power levels
, What four things do the LEDs on a cable modem or eMTA typically show? correct answers
upstream, downstream, power operation, LAN connectivity
Once you verify that you can make and receive calls thorough the eMTA using your test
equipment, any problems the customer has making calls are most likely caused by what? correct
answers a jack with a loose, wet, dirty or poor connection tip and ring polarity reversed
Robotic sounding voice and drop outs on VoIP telephone service are caused by what two network
degradations? correct answers RF signal issues, HFC network performance
True or False: CM or eMTA equipment failures account for less than 1% of high-speed data
and/or VoIP telephony problems. correct answers true
True or false: With a loop through method of pre-wiring, each unit in the MDU would have to
have the same type of services. correct answers true
True or false: A Right of Entry (ROE) agreement is the legal agreement that allows the service
provider to access private property for the purpose of providing broadband services to MDU
residents. correct answers true
At what point in construction is a complex wired for telecommunications? correct answers At the
same time as the electrical wiring is being installed
How are additional outlets provided to a resident in a Garden Style MDU? correct answers
Additional outlets can be wired by adding an additional splitter either inside the unit or on the
outside wall.
Privileges to route additional wiring outside a unit are controlled by ___________ . correct
answers an easement
