ATT TEST 9 EXAM LATEST 2024 ACTUAL EXAM 130 QUESTIONS AND ANSWERS, Exams of Nursing

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ATT TEST 9 EXAM LATEST 2024 ACTUAL EXAM 130

QUESTIONS AND CORRECT DETAILED ANSWERS

WITH RATIONALES (VERIFIED ANSWERS)

|ALREADY GRADED A

An optical fiber with a small numeric aperature requires what? - ANSWER>>An optical source capable of projecting a controlled narrow beam What component should be chosen for fastest response time and narrowest bandwidth?

• ANSWER>>laser How many indicator dots should be visible on the polishing fixture to be used correctly?
• ANSWER>> 4 2 objects at the same range must be separated by how many beam widths in order to be distinguished by a RADAR system? - ANSWER>>At least 1 What does demultiplexing mean? - ANSWER>>Separating data from a single line to different outputs What was a main component of original computers? - ANSWER>>Vacuum tubes What are the 3 categories of computers? - ANSWER>>Macro, mini, micro What are the main components of a microprocessor? - ANSWER>>Input, control, memory, ALU, output What is the function of a bus? - ANSWER>>To provide a path or info or data groups What is the purpose of a general purpose register? - ANSWER>>Temporary storage What is the purpose of a flag register? - ANSWER>>Indicate the status of the ALU What information does a program counter contain? - ANSWER>>address of next instruction What are the basic sections of a computer? - ANSWER>>control, input, output What is static RAM made of? - ANSWER>>flip flops What is dynamic RAM made of? - ANSWER>>Capacitors How does an FTC receiver affect gain? - ANSWER>>It has no effect

Which transmission line allows the least velocity? - ANSWER>>twisted pair What is least likely to be used in fiber optics? - ANSWER>>photo cell An optical fiber whose core is made of several concentric layers of materials is called what? - ANSWER>>Multimode graded index optical fiber What is used to make the filter from 1.5 mm or more flush with the polishing texture? - ANSWER>>600 grit paper What is an operating system? (hardware/ software?) - ANSWER>>software What is the main program of an operating system? - ANSWER>>kernel Which system case form factor has the best cooling? - ANSWER>>full tower What is the primary disadvantage of the full tower case? - ANSWER>>Too big to fit under a desk What is the hold time of a power supply described? - ANSWER>>The length of time that the power supply will keep producing its output after loosing its input What is the function of a chipset? - ANSWER>>Provide interface between CPU and the reset system What are the 2 working parts of the CPU? - ANSWER>>EU and BIU What is a characteristic of RISC instructions - ANSWER>>For a given RISC CPU, the instructions are all the same length Which is found in the BIOS? - ANSWER>>device drivers What is the purpose of a device driver? - ANSWER>>To tell the system how to operate a peripheral What is the purpose of a local bus? - ANSWER>>Connects peripherals to the processor bus What is the term for a single piece of info in a database record? - ANSWER>>field What is the term for a collection of fields in a database? - ANSWER>>record What is the configuration of a typical Ethernet jack? - ANSWER>>8 pin What is a client described as? - ANSWER>>a workstation connected to a network

Why did Ethernet become the most popular LAN standard? - ANSWER>>it was the first What are the cause of micro bend losses? - ANSWER>>imperfections at the core cladding boundary What uses an intrinsic material between the P type and N type? - ANSWER>>pin photodiode What numerical aperature rating requires an optical source capable of projections? - ANSWER>>. Where is an L1 cache in regards to location? - ANSWER>>internal to processor Were is an L2 cache in regards to location? - ANSWER>>external to processor What physical components are used by a computer? - ANSWER>>monitor, mouse, keyboard, system unit What are the 3 most important functions of a system case? - ANSWER>>structure, protection, cooling What are the 2 parts of a case? - ANSWER>>chassis and enclosure Which case has the best cooling? - ANSWER>>full tower What is a benefit of a mini tower? - ANSWER>>small and takes up little space What is bios described as? - ANSWER>>set of instructions that tells CPU how to interact with other devices Why is CMOS used as a clock chip? - ANSWER>>it uses minimal power to operate What are the 3 software application categories? - ANSWER>>productivity, utility, communication How big are the client limitations if the client account has full rights to a network? - ANSWER>>minimal What are photons described as? - ANSWER>>electromagnetic radiation containing bits of massless energy What is refraction? - ANSWER>>bending of a beam of light What 3 sections do fiber optic systems contain? - ANSWER>>Transmitter, transmission and receiver sections

What are most commonly used in fiber optics? - ANSWER>>APD Which component should you choose in order to reduce the additional amplification circuits require? - ANSWER>>APD What type of current is produced by a photo diode when no voltage is applied? - ANSWER>>dark current What aspect affects attenuation? - ANSWER>>absorption What does RADAR stand for? - ANSWER>>Radio Detection and Ranging What is the definition of echo? - ANSWER>>energy reflected from an object What can surface search radar not produce? - ANSWER>>altitude What are the 2 types of radar transmissions? - ANSWER>>Pulsed and continuous wave What is an aspect of a good transmission line? - ANSWER>>max transfer with minimum loss What are the 4 loss types of transmission lines? - ANSWER>>Resistive loss, induction loss, radiation loss, capacitive loss How does copper loss occur? - ANSWER>>Power loss due to lengthy line Which IF frequency is normally used in RADAR receivers? - ANSWER>>30 Mhz- 60 Mhz What is the greatest limiting factor in a receivers max detectable range? - ANSWER>>noise What is the most critical stage of the IF section? - ANSWER>>the input How does radiation loss occur? - ANSWER>>A portion of energy is lost to the atmosphere How does skin effect occur? - ANSWER>>At high freqeuencies, electrons flow outside the conductor How does dielectric loss occur? - ANSWER>>capacitance is formed between transmission lines In wave guides, what does "a" dimension determine? - ANSWER>>frequency range

In wave guides, what does "b" dimension determine? - ANSWER>>power capability