IP Voice (NCTI) Exam Questions with Complete Solutions 2023/2024 Already Graded A+ What is the network system to which the gateway at the cable modem termination system (CMTS) is connected? - Correct Answer The public switched telephone network
(PSTN)
Which calling feature allows customers to prevent the reception (ringing) of calls from specified telephone numbers? - Correct Answer Call block An IP Voice installation requires a specific downstream signal level to work properly.What should the level of the IP Voice downstream carrier be? - Correct Answer Between -15 dBmV and +15 dBmV Which of the following statements about wires, cords, and modular connectors is correct? - Correct Answer Modular connectors are designed to accept either solid or stranded wire, but not both Which of the following twisted-pair cables is rated for a maximum data rate of 10 Mbps?
- Correct Answer CAT-3
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What is the most common wiring scheme in residential applications due to its backward compatibility with telephone wiring standards? - Correct Answer T568A You examine both ends of a twisted-pair cable and see that pin 1 on the connector at one end of the cable is a white/green wire, and pin 1 on the connector at the other end of the cable is a white/orange wire. What type of wiring scheme is this? - Correct Answer T568A crossover In a T568A straight-through wiring scheme, what color is pin 5? - Correct Answer White/Blue How do you tell which wiring scheme is being used in an 8P8C RJ-45 plug? - Correct Answer Look at the wire colors What tool should you use to attach the wires to the IDCs of an RJ-45 jack? - Correct Answer Punch-down tool Before you head out to the customer's location, you must pick up the appropriate equipment and supplies. What should you do before you drive to the customer's location? - Correct Answer Double-check the equipment against your work orders Why is it important to keep a company vehicle well stocked with the required supplies and equipment? - Correct Answer To ensure installations can be completed