WGU D322 Introduction to IT Set Questions And Revised Answers

WGU D322 Introduction to IT Set Questions And Revised Answers Information Technology - ANSWER : technology used in creating and making information accessible. IT Professional Roles - ANSWER : Administration / Support System Administrator - ANSWER : Maintains system (hardware, software, and programming) Network Administrator - ANSWER : In charge of the computer network Database Administrator - ANSWER : Focuses on the design, development, and support of DBMS Security Administrator - ANSWER : Installs/administers firewall security to protect systems and stop intrusions. Web Administrator - ANSWER : Installs/troubleshoots web severs. Support IT Professionals - ANSWER : Help desk and training. Information - ANSWER : Processed dat a. DIKW Hierarchy - ANSWER : Data Information Knowledge Wisdom Data in DIKW - ANSWER : The input (not usable until it converted into a relevant form) Information in DIKW - ANSWER : inferred from data data transformed into a useful form by applying 1+ processes Knowledge in DIKW - ANSWER : (Refined) Information placed into a context. recalling relevant information Wisdom in DIKW - ANSWER : Provides a social setting to knowledge an understanding o f the "why" knowledge and experience. Information Systems - ANSWER : A collection of data and information that supports decision making in an organization. Existed for a lot longer than computers. Enables data processing and storage them delivering info rmation Characteristics of Quality Data - ANSWER : Relevance - relates directly to decision being made Timely - efficient and provided in a timely manner Thorough - the data must be complete Accurate - data = captured only once (where possible). Cap tured as close as possible to the point of activity Reliable - stable and consistent over time IPOS - ANSWER : The Input -Procession -Output -Storage Cycle Input - ANSWER : Raw data is entered by the user. Processing - ANSWER : Raw data is structur ed for usefulness. Output - ANSWER : Information is output so user can see results. Storage - ANSWER : Processed info stored for permanent record. Computer System - ANSWER : A collection of components working together to meet the users needs; hardware, software, networks, users. Hardware is the And contains the ____ and ________ - ANSWER : Physical components (tangible) system unit and peripheral devices Software contain the 1) 2)that perform this function 3)to accomplish - ANSWER : Compu ter programs That tell the computer how to process information then execute commands Network is a ____ of _______ and _______ These things communicate with each other by ______ _______ - ANSWER : A collection of computers and resources that communica te with each other by various media User - ANSWER : Those who use a computer. Software Categories - ANSWER : Systems Software Applications Software Evolution of Users 1,2,3 - ANSWER : First users: engineers who built and programmed computers Next: employees who had received specialized training Today: anyone can be a user. Protocol is the - ANSWER : Rules for computers to communicate by 2 most common protocols - ANSWER : TCIP IP TCP/IP is required by all ______that _________ - ANSWER : Transmission Control Protocol/Internet Protocol required of all computers that communicate over the Internet. Protocol Stack - ANSWER : A collection of protocols EX: TCP/IP Components of a Computer 1) 2)__&___ 3) - ANSWER : CPU, Memory and S torage, Peripheral Devices CPU Executes programs _______ ____________ components of computer AKA the "______" - ANSWER : Executes programs' instructions commands various components in the computer The "chip" Memory Stores... ________ and their _______ - ANSWER : programs and their data. I/O Subsystem contain ___________ where _____ ________ _________devices are used - ANSWER : All peripheral devices where long term storage devices are used. Bus contain _______ _____ that enable communication amon g the _________ ________ - ANSWER : electrical channels that enable communication among the electronic components Permits information to move between each component