NCTI

Introduction to Business (NCTI) Final Exam *Q&A* (100% Correct) 2024/2025 |VERIFIED| What is the primary function of a business in society? The main role of a business is to provide goods and services that meet the needs and wants of consumers while generating profit. How do small businesses contribute to the economy? Small businesses play a vital role in the economy by creating jobs, fostering innovation, and enhancing local communities through their services and products. ...

Which of the following devices were used to capture TV signals in the early days of television? A) Microwave Antenna. B) Antenna placed on the roof. C) Satellite Dish. D) Dowser Rod.  B) Antenna placed on the roof. Why did cable companies implement microwave technology? A) Because the equipment was inexpensive. B) Largely because the microwave signal was not amplified to reach the cable system. C) To obtain a better signal quality than antenna-delivered signal could offer. D) To fil...

Why do only the outer electrons leave their orbit shells?  Only outer electrons leave their orbit shells because electrons farthest from the nucleus are more easily freed from their orbits due to a weaker electrostatic force. What is required to have a balanced (or stable) atom?  The number of electrons must equal the number of protons in order to have a balanced atom. List the capacity of each of the first four orbital shells of an atom.  Shell: #1 = 2 electrons; #2 = 8 electr...

Which of the following will strengthen signals as they move farther away from the headend through the trunk express system?  B) Distribution amplifiers. Which of the following describes a carrier wave?  B) A wave with a much higher frequency than the input signal. Which of the following describes modulation?  B) The reshaping of a carrier wave to include information contained by an input signal. Which of the following is the symbol for power?  W = watts Which of the follo...

Which of the following will strengthen signals as they move farther away from the headend through the trunk express system? A ) Uninterruptable power supplies. B ) Feeder cables. C ) Distribution amplifiers. D ) Fiber nodes.  Answer: C ) Distribution amplifiers Which of the following describes a carrier wave? A ) A wave where the frequencies are spaced widely apart. B ) A wave with a much higher frequency than the input signal. C ) A wave with the same frequency as the input signal...

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NCTI FINAL EXAM PROGRESSION FIELD TECH 3-4 TEST LATEST ACTUAL EXAM 200 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES|AGRADE

QUESTION Which activities occur at the Application Layer? Answer: File transfer and access email Web browser QUESTION Encapsulation and protocol headers, decapsulation, and reassembly are three of the four basic techniques used whenever different layers of protocols work together. What is the fourth? Answer: Segmentation QUESTION Which type of address is unique anywhere in the world? Answer: NIC address QUESTION Which layer of the OSI protocol stack handles frames? Answer: