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
... [Show More] outside the PacketCable managed IP network? - correct answerGateway
What are the three sub-network interfaces managed by PacketCable? - correct answerHybrid fiber/coax (HFC), managed IP, and public switched telephone network (PSTN).
Why is PacketCable VoIP a more efficient way of handling calls? - correct answerMost 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 answerTier 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 answerThe 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 answerCheck 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 answerThe 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 answerThe 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 answerMaking 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 answerThe main closet or telecommunications closet.
Before a business telephone installation is performed in an office building, who must first approve it? - correct answerThe 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 answerThe Telecommunications Industry Association (TIA).
When extending wiring into another part of a building becomes necessary, who is responsible for initiating the service? - correct answerThe 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 answerThe customer.
What is the advantage of using a multiple-clip configuration for distribution applications in the 66-block? - correct answerSeveral 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 answerTelephone 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 answerCategory 5e.
Which configuration enables several telephone extensions to have a direct (home-run) connection to the same network circuit? - correct answerA multiple-clip configuration.
If it is necessary to run cables from one intermediate distribution frame (IDF) to another, what type of connection block is used? - correct answerM66-150.
Grounding and protection are required in two places. One is in the equipment room or telecommunications closet. Where is the other? - correct answerBuilding entrance.
When a circuit is cross-connected to a customer's equipment or telephones, it is tagged for identification. Where else are telephone numbers and line positions on the embedded multimedia terminal adapter (EMTA) noted? - correct answerOn the orange cover of the 66-block.
Why is the T568A wiring configuration recommended over the T568B wiring configuration? - correct answerThe T568A configuration is backward compatible with Universal Services Ordering Code (USOC) RJ-XX wiring.
Which pins are often not installed in a RJ-11 jack? - correct answerPins 1 and 6.
In a T568A wiring scheme for a four-pair connection, which pair uses white/brown for tip and brown/white for ring? - correct answerPair 4.
When installing a 66-block, which mounting guidelines should be followed? - correct answerA mount support bracket (also called a stand-off bracket) should be installed to help provide needed clearances.
What is a main distribution frame? - correct answerA wiring arrangement that connects outside and internal telephone lines.
What is the maximum pulling tension for a four-pair unshielded twisted-pair (UTP) CAT-5e cable? - correct answer25 lbs.
When running unshielded twisted-pair (UTP) cable, it is critical that - correct answerThe minimum bend radius be maintained to no less than 4 times the outside diameter.
If a 66-block has a green cover, what does that designate? - correct answerNetwork connections.
What code covers the installation of station jacks? - correct answerUniversal Service Ordering Code (USOC).
Which tool is used to force down a twisted pair conductor in an insulation displacement connector (IDC) termination? - correct answerPunch down tool.
When stripping unshielded twisted-pair (UTP) cable, what is one factor that must be taken into account to ensure proper stripping? - correct answerJacket thickness varies because of flame rating and manufacturer.
The IDEAL Pathfinder Tester is made up of: - correct answerOne main unit and up to four remote modules.
One of the functions of the IW (inside wire) cable tester is to: - correct answerTest line cords that connect the customer premises equipment (CPE) to modular data and telephone jacks.
When using a twisted-pair cable tester, a green condition means: - correct answerContinuity exists throughout the circuit pair without faults.
A wire map field cable tester can include a time domain reflectometer (TDR) to determine the distance to any breaks, shorts, or missed wires. In what situations can the tester be used? - correct answerIt is used to certify structured wiring in commercial buildings and can be used to verify inside wire (IW) in residential settings.
Which of the following best describes how a wiremap tester checks pin-to-pin continuity? - correct answerA wiremap includes one unit that injects a signal at one end of the cable and a second unit that checks the signal at the other end.
What causes unshielded twisted-pair (UTP) cable to come in a variety of thicknesses? - correct answerUTP jacket thickness varies because of flame rating and manufacturer.
The terminator tool is used to: - correct answerGive new service or take away service to a customer.
Which tool is used to tighten "F" connectors securely? - correct answer7/16 inch wrench
Which of the following features are normally part of a PBX system? - correct answerCall forwarding, call waiting, speed dialing.
Which key system architecture enables individual telephone sets that do not require any single shared-control unit? - correct answerIndependent keysets.
Which type of telephone system allows a company to have a single phone number reach all employees even though they reside in different geographical locations? - correct answerHosted PBX.
Which telephone system is characterized by dual tone multi-frequency (DTMF) tones being transmitted to the central office? - correct answerTraditional.
Which phone system generates dial tone at the central office? - correct answerTraditional.
What is the maximum number of hunt groups that can be set up for a business IP voice account? - correct answerThree.
Which of the following is a feature of a PBX? - correct answerEach phone is addressable.
Which telephone system allows one extension to ring in multiple locations, either at the same time or in sequence? - correct answerHosted PBX.
What is the most common digital standard for fixed telephony devices? - correct answerIntegrated services digital network (ISDN).
When a business has automatic call distribution on its telephone system, what do callers hear? - correct answerCallers are greeted with an automated message that notifies them that they will be on hold until someone is available.
How are indoor EMTA units normally powered? - correct answerWith a 110-volt alternating current (VAC) power source with battery backup.
Once power has been disconnected at the tap, which of the following represents the proper way to jumper the EMTA for coax power? - correct answerGround to return and coax to supply.
Which EMTA powering scheme provides power independent of the cable system and includes a battery backup and telemetry? - correct answerLocal.
Which condition causes an EMTA to generate an alternating current (AC) fail alarm? - correct answerLoss of power.
Which of the following best describes a media access control (MAC) address? - correct answerA unique 12-digit, alpha-numeric identifier that is burned into the device by the manufacturer to identify it so that IP packets can be routed to it.
Which of the following represents a valid MAC address? - correct answer09:00:70:B3:B9:99.
Which one of the following is a step to take during the site survey when reviewing the location of all telephones and customer premises equipment (CPE)? - correct answerVerify that all of the telephones are working properly.
When confirming work with the customer, if you are asked to make changes to their long-distance carrier, what should you do? - correct answerExplain to the customer that you do not have the authority to make these changes.
Before starting a final review with a customer at the end of an installation, what should an installer try to do? - correct answerTalk to the same person that he or she spoke to at the beginning of the installation.
Which of the following does an embedded multimedia terminal adapter (EMTA) local powering scheme provide? - correct answerTelemetry data about the power operation of the EMTA.
To prevent incompatibility between IP telephony and security systems, what should a cable company recommend that a customer do? - correct answerContact the alarm company prior to IP installation to ensure compatibility.
There are three specific alarm monitoring concerns related to VoIP installation. Besides incompatibility issues with the in-line seizure module and the loss of electric power, what is the third concern? - correct answerImproper wiring at the installation.
What is a primary function of an RJ31X jack? - correct answerIt provides a method for quickly disconnecting an alarm system by unplugging its jumper.
What will occur when the jumper is removed from an RJ31X jack? - correct answerThe alarm system will not function properly. [Show Less]