NCTI Final Exam: Progression Field Tech 4-5 Exam| New Update | Verified Questions and Answers

NCTI Final Exam: Progression Field Tech 4-5 Exam Which small, network is private to the organization, sharing a common communications line linking together devices such as computers, printers, and other peripherals? - ANSWER Local area network (LAN). Which of the following is a unique address that is physically assigned to devices such as a modem or network interface card (NIC)? - ANSWER Media access control (MAC) address. Which two layers of the Open Systems Interconnection (OSI) reference model are combined in the transmission control protocol/Internet protocol (TCP/IP) model Network Access Layer? - ANSWER Data Link Layer and Physical Layer. Which protocol has four numeric fields, each 8 binary bits long, called "octets"? - ANSWER Internet protocol version 4 (IPv4). Which of the following data services does a business use because it works best for dedicated services, such as hosting a website or Internet server, email, and file transfer protocol (FTP)? - ANSWER Static Internet protocol (IP) addressing. Which type of unshielded twisted-pair (UTP) cable does not easily catch fire and is designed to smoke very little so that toxic fumes are not circulated through a building? - ANSWER CMP - Plenum-rated cable. Static Internet protocol (IP) address settings are manually configured using the IP address, the Preferred DNS server, the Alternate DNS server, and the Subnet mask settings. Which setting is missing from the list? - ANSWER Default gateway. What determines the overall quality of a stable Internet service? - ANSWER Zero percent packet loss and a stable ping time. Which command line entry is used for testing latency, packet loss, and the general health of the modem? - ANSWER Ping Which step in the six-step troubleshooting process uses the information that was gathered to identify the cause of the problem and find the most likely solution? - ANSWER Diagnose the symptoms. When troubleshooting a missing channel issue on a media distribution gateway for a commercial property, what should be done? - ANSWER Verify that an auto program has been run or that the correct commercial TV configuration file in use. If an issue is found with a single set-back box (SBB) or digital terminal adapter (DTA) during the verification process, what is the first thing you should determine? – ANSWER whether the issue is physical in nature such as no power, an unplugged High-Definition Multimedia Interface (HDMI), or on a switched outlet. What is the best way to gather information to create a clear and concise problem statement? - ANSWER Leverage multiple sources for information by talking to the customer's office staff, maintenance staff, and those impacted by the problem When troubleshooting a problem within a commercial property, what group of people should you leverage for help? - ANSWER Customer on-site Information Technology (IT) staff. When setting up a commercial TV, which feature allows you to change the access code to enter the installer menu? - ANSWER Installer sequence. What is the best Infrared (IR) sensor for a set-back box (SBB) due to their relatively low cost and their ability to be hidden from view? - ANSWER Prism sensor. What is the minimum accepted input signal strength per digital channel on a media distribution gateway? - ANSWER +5 to +10 decibel millivolts (dBmV). When troubleshooting a commercial property, what is the main reason for removing a reverse output pad from a line amplifier? - ANSWER To mitigate unwanted noise or ingress leaking back into the hybrid fiber/coax (HFC) plant. Which part of the DVIS takes an incoming signal and filters out a range of frequencies? - ANSWER Channel elimination filter Which media distribution gateway is used where legacy analog TVs are in place for reliable programming without a set-top box (STB)? - ANSWER Quadrature amplitude modulation (QAM) to analog (Q2A) According to the ANSI/TIA/EIA-606 color coding guidelines, which color represents the telephone demarcation point in a commercial building? - ANSWER Orange. Which unshielded twisted-pair (UTP) category (CAT) supports data rates up to 10 gigabits per second (Gbps)? - ANSWER CAT-6, CAT-6A, and CAT-7. According to the National Electric Code (NEC) article 800-179, which type of cable marking shows that a cable is riser-rated? - ANSWER CMR. When porting telephone numbers, what information should you confirm with the customer? - ANSWER The number of telephone lines being installed and their associated telephone numbers. What is the primary purpose of a 66-block? - ANSWER To distribute up to 50 unique telephone numbers within a business.