NCTI

In what applications is a splice closure used? - Splice closures are used to protect optical fibers and splices against a full range of environmental changes in aerial installations or below ground in vaults. When preparing a fiber-optic cable for splicing, what is the purpose of removing approximately 2.5 cm (1 inch) of jacket and any armor that is present, from the end of the cable? - To access the cable's rip cord and to check the cutting depth of the knife or ringing tool what does ...

NCTI FINAL EXAMS WITH CONVECTIONAL STUDY GUIDE EXAM ACTUAL QUESTIONS AND ANSWERS

QUESTION: The Open Systems Interconnection reference model (OSI/RM) Network Layer serves which primary purpose? Ans: It uses Layer 3 addresses to create multiple routed networks. QUESTION: The address 68.56.189.17 belongs to which Internet protocol (IP) class? Ans: Class A QUESTION: What happens to a datagram sent by a higher level protocol to a 127.x.y.z address? Ans: The datagram loops back inside the host and never leaves the network interface card (NIC). QUESTION: Which device ...

QUESTION: What are three principle characteristics that define an AC waveform? Ans: The three principle characteristics that define an AC waveform are: (1) frequency; (2) wavelength; and (3) amplitude. QUESTION: What is one of the basic principles of resistance reflected in the familiar practices of grounding and bonding? Ans: Grounding and bonding practices reflect the basic principle that electricity always follows the path of least resistance. QUESTION: What comprises the impedanc...

QUESTION: According to SCTE- and NCTA- recommended trunk system map symbols, fiber-optic cable is represented by Ans: Double arrows within a small circle on a solid line. QUESTION: The forward path signal in a traditional tree-and-branch architecture Ans: originates at the headend and is transmitted downstream through coaxial trunk cable and trunk amplifier. QUESTION: In a HFC network, Ans: Processing equipment in the headend converts the forward RF signal to a light signal. QUESTI...

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What term describes the number of wave crests that pass a fixed point during a particular period of time? Frequency In data networking, this term is defined as "Signals may flow in either direction, but not simultaneously". Half-Duplex Two CPU's have the same size data bus. Which one will process data faster? The one with a higher clock speed Which of the following is most typical of a broadband network? Multiple analog channels What components are most common to all computer sy...