Field Tech 6 – Computer Science
Questions and Answers
Which piece of equipment in the VoIP phone system routes a call to the public switched telephone
network (PTSN) when the receiving location is from outside the PacketCable managed IP network? -
CORRECT ANSWER ->>Gateway
What are the three sub-network interfaces managed by PacketCable? - CORRECT ANSWER ->>Hybrid
fiber/coax (HFC), managed IP, and public switched telephone network (PSTN).
Why is PacketCable VoIP a more efficient way of handling calls? - CORRECT ANSWER ->>Most cable
operators have built their own IP telephone networks that use Internet Protocol rules.
Which of the VoIP service tiers bypass the cable operator's direct link to the public switched telephone
network (PSTN) and route packets over the Internet to another telephone company? - CORRECT
ANSWER ->>Tier II Secondary VoIP.
When a call is made from a phone that is on a managed IP phone system to a phone that is outside the
managed IP phone system, how does the call get routed to the receiving phone? - CORRECT ANSWER -
>>The gateway down-converts the digital data to an analog electrical signal format and routes the call to
the public switched telephone network (PSTN).
Because a cable operator will support as many lines as technically possible for a business customer,
what does the installer have to do prior to connecting the embedded multimedia terminal adapter
(EMTA)? - CORRECT ANSWER ->>Check the RF signal levels on the cable entering the building.
When a PBX or key system is involved in a business installation, the installer can set up the embedded
multimedia terminal adapters (EMTA) and cable, but what has to happen before the installer can begin
connecting the equipment? - CORRECT ANSWER ->>The customer's PBX and key system technician must
arrive at the location.
For a business telephone installation, which of the following is the preferred location for the embedded
multimedia terminal adapter (EMTA)? - CORRECT ANSWER ->>The main closet.
, Which of the following is a process that must be followed during a business order installation and differs
from a residential order process? - CORRECT ANSWER ->>Making sure the PBX is tested and is
functioning properly.
What is the location where the embedded multimedia terminal adapter (EMTA) is connected to both the
outside and inside wiring? - CORRECT ANSWER ->>The main closet or telecommunications closet.
Before a business telephone installation is performed in an office building, who must first approve it? -
CORRECT ANSWER ->>The building owner or management company.
This organization is responsible for developing the telecommunications standards that address
commercial building cabling for telecom products and services with wiring standards such as T568A and
T568B to ensure consistent wiring and service delivery. - CORRECT ANSWER ->>The Telecommunications
Industry Association (TIA).
When extending wiring into another part of a building becomes necessary, who is responsible for
initiating the service? - CORRECT ANSWER ->>The customer.
Who owns and is responsible for the wiring between the small and medium business (SMB) customer's
cross-connect block and the cross-connect block installed by the cable operator? - CORRECT ANSWER -
>>The customer.
What is the advantage of using a multiple-clip configuration for distribution applications in the 66-block?
- CORRECT ANSWER ->>Several extensions can have a direct (i.e., home-run) connection to the same
network circuit.
What organization is responsible for developing telecommunication standards that address commercial
building cabling for telecom products and services? - CORRECT ANSWER ->>Telephone Industry
Association / Electronic Industry Association (TIA/EIA).
According to Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA)
standards, which type of unshielded twisted-pair (UTP) cabling is recommended for data-grade
applications? - CORRECT ANSWER ->>Category 5e.
Questions and Answers
Which piece of equipment in the VoIP phone system routes a call to the public switched telephone
network (PTSN) when the receiving location is from outside the PacketCable managed IP network? -
CORRECT ANSWER ->>Gateway
What are the three sub-network interfaces managed by PacketCable? - CORRECT ANSWER ->>Hybrid
fiber/coax (HFC), managed IP, and public switched telephone network (PSTN).
Why is PacketCable VoIP a more efficient way of handling calls? - CORRECT ANSWER ->>Most cable
operators have built their own IP telephone networks that use Internet Protocol rules.
Which of the VoIP service tiers bypass the cable operator's direct link to the public switched telephone
network (PSTN) and route packets over the Internet to another telephone company? - CORRECT
ANSWER ->>Tier II Secondary VoIP.
When a call is made from a phone that is on a managed IP phone system to a phone that is outside the
managed IP phone system, how does the call get routed to the receiving phone? - CORRECT ANSWER -
>>The gateway down-converts the digital data to an analog electrical signal format and routes the call to
the public switched telephone network (PSTN).
Because a cable operator will support as many lines as technically possible for a business customer,
what does the installer have to do prior to connecting the embedded multimedia terminal adapter
(EMTA)? - CORRECT ANSWER ->>Check the RF signal levels on the cable entering the building.
When a PBX or key system is involved in a business installation, the installer can set up the embedded
multimedia terminal adapters (EMTA) and cable, but what has to happen before the installer can begin
connecting the equipment? - CORRECT ANSWER ->>The customer's PBX and key system technician must
arrive at the location.
For a business telephone installation, which of the following is the preferred location for the embedded
multimedia terminal adapter (EMTA)? - CORRECT ANSWER ->>The main closet.
, Which of the following is a process that must be followed during a business order installation and differs
from a residential order process? - CORRECT ANSWER ->>Making sure the PBX is tested and is
functioning properly.
What is the location where the embedded multimedia terminal adapter (EMTA) is connected to both the
outside and inside wiring? - CORRECT ANSWER ->>The main closet or telecommunications closet.
Before a business telephone installation is performed in an office building, who must first approve it? -
CORRECT ANSWER ->>The building owner or management company.
This organization is responsible for developing the telecommunications standards that address
commercial building cabling for telecom products and services with wiring standards such as T568A and
T568B to ensure consistent wiring and service delivery. - CORRECT ANSWER ->>The Telecommunications
Industry Association (TIA).
When extending wiring into another part of a building becomes necessary, who is responsible for
initiating the service? - CORRECT ANSWER ->>The customer.
Who owns and is responsible for the wiring between the small and medium business (SMB) customer's
cross-connect block and the cross-connect block installed by the cable operator? - CORRECT ANSWER -
>>The customer.
What is the advantage of using a multiple-clip configuration for distribution applications in the 66-block?
- CORRECT ANSWER ->>Several extensions can have a direct (i.e., home-run) connection to the same
network circuit.
What organization is responsible for developing telecommunication standards that address commercial
building cabling for telecom products and services? - CORRECT ANSWER ->>Telephone Industry
Association / Electronic Industry Association (TIA/EIA).
According to Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA)
standards, which type of unshielded twisted-pair (UTP) cabling is recommended for data-grade
applications? - CORRECT ANSWER ->>Category 5e.
