IP Voice (NCTI) questions with correct answers

What is the network system to which the gateway at the cable modem termination system (CMTS) is connected? Answer The public switched telephone network (PSTN) Which calling feature allows customers to prevent the reception (ringing) of calls from specified telephone numbers? 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? Answer Between -15 dBmV and +15 dBmV Which of the following statements about wires, cords, and modular connectors is 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? Answer CAT-3 What is the most common wiring scheme in residential applications due to its backward compatibility with telephone wiring standards? 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? Answer T568A crossover