broadband digital installer questions with
accurate answers
A cable gateway can replace which broadband cable operator supplied
devices? Ans✓✓✓ The cable gateway could replace a cable modem.
A constant bit rate (CBR) telephone system is considered to be circuit-
switching technology because the analog audio signal is Ans✓✓✓
Converted into a digital DS0 circuit and switched to other cable
telephony customers or to the telephone company's network.
A modular plug contains four-, six-, or eight-pin positions. Each position
is numbered and is used to terminate a specific tip or ring wire from a
quad or twisted-pair cable. How are the pins on a modular jack
numbered? Ans✓✓✓ From left to right, with the locking tab down.
After mounting and wiring a new modular telephone jack in a star
installation, where should the unshielded twisted-pair (UTP) cable from
the new modular jack be connected? Ans✓✓✓ To the tip and ring
screw terminals or insulation displacement connection (IDC) on the
telephone distribution device.
After verifying the dial tone from the embedded multimedia terminal
adapter (EMTA), what is the next step in verifying the EMTA's
operational status? Ans✓✓✓ Checking that the EMTA dials and
connects properly by making local and long distance calls.
,All telephone cables are labeled with either a level or category (CAT)
number that designates the cable's performance criteria. How do CAT-1,
CAT-2, and CAT-3 cables compare to CAT-5e and higher cables?
Ans✓✓✓ CAT-1 through CAT-3 are used only for voice applications;
CAT-5e and higher are used for voice and data.
Entertainment cabinets with doors made of green glass block which of
the following from electronic components? Ans✓✓✓ Infrared (IR)
remote sensors.
For an embedded media terminal adapter (EMTA) to receive an
authorization key for telephone service, what is required of the media
access control (MAC) address? Ans✓✓✓ It must be assigned to a
customer account in the billing system database which updates the cable
modem termination system (CMTS).
Generally speaking, a wide area network (WAN) can be described as
Ans✓✓✓ A network comprised of several local area networks (LAN)
and metropolitan area networks (MAN) interconnected into a single
network covering a large geographic area.
Generating a dial tone in either a traditional telephone call or a
PacketCable voice over Internet protocol (VoIP) call is similar, except
Ans✓✓✓ Equipment in the central office (CO) for plain old telephone
service (POTS) senses the change in voltage and generates a dial tone
where the embedded multimedia terminal adapter (EMTA) senses the
change and generates a dial tone in PacketCable.
, How do cable operators ensure that only paying customers are receiving
digital television (DTV) service? Ans✓✓✓ Cable operators prevent
unauthorized reception of DTV services by scrambling or encrypting the
services.
How does a DOCSIS modem receive its Internet protocol (IP) address?
Ans✓✓✓ From a dynamic host configuration protocol (DHCP) server
that provides the CMTS with the modem's IP address, which is
forwarded to the modem during initialization.
How does the insulation displacement connector modular telephone jack
differ from the screw-down post modular telephone jack? Ans✓✓✓
The wires are connected using IDC termination slots, which hold the
twisted-pair wires.
How should a technician check for crosstalk in a multiline telephone
installation? Ans✓✓✓ Listening for tones on one line while dialing out
on another line.
If a residence contains many modular jacks, a distribution device may be
used in addition to the network interface device (NID). What
components are contained in a distribution device? Ans✓✓✓ Tip and
ring screw or punch-down terminals, which are used to connect the
inside wiring.
If the customer demonstrates that they are experienced with accessing
the Internet savvy, what should be the next step in the customer
education portion of the high-speed data (HSD) service installation?
accurate answers
A cable gateway can replace which broadband cable operator supplied
devices? Ans✓✓✓ The cable gateway could replace a cable modem.
A constant bit rate (CBR) telephone system is considered to be circuit-
switching technology because the analog audio signal is Ans✓✓✓
Converted into a digital DS0 circuit and switched to other cable
telephony customers or to the telephone company's network.
A modular plug contains four-, six-, or eight-pin positions. Each position
is numbered and is used to terminate a specific tip or ring wire from a
quad or twisted-pair cable. How are the pins on a modular jack
numbered? Ans✓✓✓ From left to right, with the locking tab down.
After mounting and wiring a new modular telephone jack in a star
installation, where should the unshielded twisted-pair (UTP) cable from
the new modular jack be connected? Ans✓✓✓ To the tip and ring
screw terminals or insulation displacement connection (IDC) on the
telephone distribution device.
After verifying the dial tone from the embedded multimedia terminal
adapter (EMTA), what is the next step in verifying the EMTA's
operational status? Ans✓✓✓ Checking that the EMTA dials and
connects properly by making local and long distance calls.
,All telephone cables are labeled with either a level or category (CAT)
number that designates the cable's performance criteria. How do CAT-1,
CAT-2, and CAT-3 cables compare to CAT-5e and higher cables?
Ans✓✓✓ CAT-1 through CAT-3 are used only for voice applications;
CAT-5e and higher are used for voice and data.
Entertainment cabinets with doors made of green glass block which of
the following from electronic components? Ans✓✓✓ Infrared (IR)
remote sensors.
For an embedded media terminal adapter (EMTA) to receive an
authorization key for telephone service, what is required of the media
access control (MAC) address? Ans✓✓✓ It must be assigned to a
customer account in the billing system database which updates the cable
modem termination system (CMTS).
Generally speaking, a wide area network (WAN) can be described as
Ans✓✓✓ A network comprised of several local area networks (LAN)
and metropolitan area networks (MAN) interconnected into a single
network covering a large geographic area.
Generating a dial tone in either a traditional telephone call or a
PacketCable voice over Internet protocol (VoIP) call is similar, except
Ans✓✓✓ Equipment in the central office (CO) for plain old telephone
service (POTS) senses the change in voltage and generates a dial tone
where the embedded multimedia terminal adapter (EMTA) senses the
change and generates a dial tone in PacketCable.
, How do cable operators ensure that only paying customers are receiving
digital television (DTV) service? Ans✓✓✓ Cable operators prevent
unauthorized reception of DTV services by scrambling or encrypting the
services.
How does a DOCSIS modem receive its Internet protocol (IP) address?
Ans✓✓✓ From a dynamic host configuration protocol (DHCP) server
that provides the CMTS with the modem's IP address, which is
forwarded to the modem during initialization.
How does the insulation displacement connector modular telephone jack
differ from the screw-down post modular telephone jack? Ans✓✓✓
The wires are connected using IDC termination slots, which hold the
twisted-pair wires.
How should a technician check for crosstalk in a multiline telephone
installation? Ans✓✓✓ Listening for tones on one line while dialing out
on another line.
If a residence contains many modular jacks, a distribution device may be
used in addition to the network interface device (NID). What
components are contained in a distribution device? Ans✓✓✓ Tip and
ring screw or punch-down terminals, which are used to connect the
inside wiring.
If the customer demonstrates that they are experienced with accessing
the Internet savvy, what should be the next step in the customer
education portion of the high-speed data (HSD) service installation?
