https:\/\/learnexams.com\/search\/study?query=<\/a>
What does demultiplexing mean? Separating data from a single line to different outputs
What was a main component of original computers? Vacuum tubes
What are the 3 categories of computers? Macro, mini, micro
What are the main components of a microprocessor? Input, control, memory, ALU, output
What is the function of a bus? To provide a path or info or data groups
What is the purpose of a general purpose register? Temporary storage
What is the purpose of a flag register? Indicate the status of the ALU
What information does a program counter contain? address of next instruction
What are the basic sections of a computer? control, input, output
What is static RAM made of? flip flops
What is dynamic RAM made of? Capacitors
How does an FTC receiver affect gain? It has no effect
Which transmission line allows the least velocity? twisted pair
What is least likely to be used in fiber optics? photo cell
An optical fiber whose core is made of several concentric layers of materials is called what? Multimode graded index optical fiber
An optical fiber with a small numeric aperature requires what? An optical source capable of projecting a controlled narrow beam
What component should be chosen for fastest response time and narrowest bandwidth? laser
How many indicator dots should be visible on the polishing fixture to be used correctly? 4
2 objects at the same range must be separated by how many beam widths in order to be distinguished by a RADAR system? At least 1
What is used to make the filter from 1.5 mm or more flush with the polishing texture? 600 grit paper
What is an operating system? (hardware\/ software?) software
What is the main program of an operating system? kernel
Which system case form factor has the best cooling? full tower
What is the primary disadvantage of the full tower case? Too big to fit under a desk
What is the hold time of a power supply described? The length of time that the power supply will keep producing its output after loosing its input
What is the function of a chipset? Provide interface between CPU and the reset system
What are the 2 working parts of the CPU? EU and BIU
What is a characteristic of RISC instructions For a given RISC CPU, the instructions are all the same length
Which is found in the BIOS? device drivers
What is the purpose of a device driver? To tell the system how to operate a peripheral
What is the purpose of a local bus? Connects peripherals to the processor bus
What is the term for a single piece of info in a database record? field
What is the term for a collection of fields in a database? record
What is the configuration of a typical Ethernet jack? 8 pin
What is a client described as? a workstation connected to a network
Why did Ethernet become the most popular LAN standard? it was the first
What are the cause of micro bend losses? imperfections at the core cladding boundary
What uses an intrinsic material between the P type and N type? pin photodiode
What numerical aperature rating requires an optical source capable of projections? .002
Where is an L1 cache in regards to location? internal to processor
Were is an L2 cache in regards to location? external to processor
What physical components are used by a computer? monitor, mouse, keyboard, system unit
What are the 3 most important functions of a system case? structure, protection, cooling
What are the 2 parts of a case? chassis and enclosure
Which case has the best cooling? full tower
What is a benefit of a mini tower? small and takes up little space
What is bios described as? set of instructions that tells CPU how to interact with other devices
Why is CMOS used as a clock chip? it uses minimal power to operate
What are the 3 software application categories? productivity, utility, communication
How big are the client limitations if the client account has full rights to a network? minimal
What are photons described as? electromagnetic radiation containing bits of massless energy
What is refraction? bending of a beam of light
What 3 sections do fiber optic systems contain? Transmitter, transmission and receiver sections
What are most commonly used in fiber optics? APD
Which component should you choose in order to reduce the additional amplification circuits require? APD
What type of current is produced by a photo diode when no voltage is applied? dark current
What aspect affects attenuation? absorption
What does RADAR stand for? Radio Detection and Ranging
What is the definition of echo? energy reflected from an object
What can surface search radar not produce? altitude
What are the 2 types of radar transmissions? Pulsed and continuous wave
What is an aspect of a good transmission line? max transfer with minimum loss
What are the 4 loss types of transmission lines? Resistive loss, induction loss, radiation loss, capacitive loss
How does copper loss occur? Power loss due to lengthy line
Which IF frequency is normally used in RADAR receivers? 30 Mhz- 60 Mhz
What is the greatest limiting factor in a receivers max detectable range? noise
What is the most critical stage of the IF section? the input
How does radiation loss occur? A portion of energy is lost to the atmosphere
How does skin effect occur? At high freqeuencies, electrons flow outside the conductor
How does dielectric loss occur? capacitance is formed between transmission lines
“In wave guides, what does “”a”” dimension determine?” frequency range
“In wave guides, what does “”b”” dimension determine?” power capability<\/p>\n","protected":false},"excerpt":{"rendered":"ATT Test 9 (Latest 2024\/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A ATT Test 9 (Latest 2024\/ 2025 Update)Questions and Verified Answers| 100%Correct| Grade AQ: What voltages are considered LOW (TTL logic)?Answer:0.8 volts or lessQ: What voltages are considered HIGH (TTL logic)?Answer:2V or moreQ: Voltages between 0.8V and 2V are considered what?Answer:Unknown, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-131719","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/131719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=131719"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/131719\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=131719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=131719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=131719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}