{"id":129024,"date":"2023-11-29T12:40:25","date_gmt":"2023-11-29T12:40:25","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=129024"},"modified":"2023-11-29T12:40:27","modified_gmt":"2023-11-29T12:40:27","slug":"wgu-d426-data-management-foundations-exam-new-2023-2023-update-graded-a-questions-and-verified-answers100-correct","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2023\/11\/29\/wgu-d426-data-management-foundations-exam-new-2023-2023-update-graded-a-questions-and-verified-answers100-correct\/","title":{"rendered":"WGU D426 Data Management Foundations Exam (New 2023\/ 2023 Update) | Graded A | Questions and Verified Answers|100% Correct"},"content":{"rendered":"\n<p>WGU D426 Data Management Foundations Exam (New 2023\/ 2023 Update) | Graded A | Questions and Verified Answers|100% Correct<\/p>\n\n\n\n<p>WGU D426 Data Management Foundations<br>Exam (New 2023\/ 2023 Update) | Graded A |<br>Questions and Verified Answers|100%<br>Correct<br>QUESTION<br>Group of nodes connected by a LAN, managed by separate operating system instances. Similar<br>to a parallel computer.<br>Answer:<br>Cluster<br>QUESTION<br>Runs on a parallel computer or cluster<br>Answer:<br>Parallel Database<br>QUESTION<br>Runs on multiple computers connected by a WAN<br>Answer:<br>Distributed Database<br>QUESTION<br>Updates data on multiple nodes of a distributed database. Two-phase com- mit (nodes receive<br>notice of update, store update in log, send confirmation, then receive commit). Either all nodes or<br>no nodes must be successfully updated.<br>Answer:<br>Distributed Transactions<\/p>\n\n\n\n<p>QUESTION<br>Updates data on a single node of a distributed database. Databases that use this are called<br>&#8220;eventually consistent&#8221;.<br>Answer:<br>Local Transaction<br>QUESTION<br>States that a distributed database cannot be Consistent, Available, and Petition-tolerant<br>simutaneously. Availability refers to individual nodes. Con- sistent database &#8211; confirms to all<br>rules at all times. Network partition &#8211; forms when a network error prevents nodes from<br>communicating. Petition-tolerant<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>database that continues to function when a network partition occurs.<br>Answer:<br>CAP Theorem<br>QUESTION<br>Maintains two or more replicas on separate storage devices. Advantages: High availability, fast<br>concurrent reads, local reads. Disadvantages: Slow or inconsistent updates.<br>Answer:<br>Replicated database<br>QUESTION<br>Entire catalog resides on a single node<br>Answer:<br>Central Catalog<br>QUESTION<br>Copy of catalog resides on each node<br>Answer:<\/li>\n<\/ul>\n\n\n\n<p>Replicated Catalog<br>QUESTION<br>Volatile- Used to conduct daily business -Changes in real time -Detailed Designed for specific<br>business function -Concerned primarily with current data<br>Answer:<br>Operational Data<br>QUESTION<br>AKA: Reporting Data or Decision Support Data -Enterprise-wide- Used to understand, manage,<br>and plan the business- Summary Updated at fixed intervals and summarized by time period &#8211;<br>Combines data from many business functions -Usually contains current and historic data<br>Answer:<br>Analytic Data<br>QUESTION<br>Data warehouse designed for specific business area<br>Answer:<br>Data Mart<br>QUESTION<br>Analytic database of raw, unprocessed data copied from multiple data sources.<br>Answer:<br>Data Lake<br>QUESTION<br>Optimized for analytics<br>Answer:<\/p>\n\n\n\n<p>Data Warehouse<br>QUESTION<br>Five-step process \u2013 ETL: Extract-Transform Load 1) Extract data 2) Cleanse data 3) Integrate<br>data 4) Restructure data 5) Load data &#8211; Open-source ETL tools: -PowerCenter -SQL Server<br>Integration Services -Oracle Data IntegratorAnswer:<br>Data Warehouse Refresh<br>QUESTION<br>AKA: Star Schema &#8211; Consists of fact and dimension tables. Fact Table &#8211; Contains numeric data<br>used to measure business performance.. Primary key is the composite for all foreign keys<br>referencing dimension tables. Dimension Table &#8211; Contains textual data that describes the fact<br>data.<br>Answer:<br>Dimensional Design<br>QUESTION<br>Sequence of columns in which each column has a one-many relationship to the next column.<br>Answer:<br>Dimension Hierarchy<br>QUESTION<br>A database that stores data in main memory, instead of or in addition to storage media. Ex: SQL<br>Server In-Memory OLTP &#8211; Oracle Database In-Memory<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>MySQL<br>Answer:<br>In-Memory Databases<br>Powered by<a href=\" https:\/\/learnexams.com\/search\/study?query=\"> https:\/\/learnexams.com\/search\/study?query=<\/a><\/li>\n<\/ul>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2023\/11\/WGU-D426-DATA-MANAGEMENT-FOUNDATIONS-EXAM-NEW-2023-2023-UPDATE-GRADED-A-QUESTIONS-AND-VERIFIED-ANSWERS100-CORRECT.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Embed of WGU-D426-DATA-MANAGEMENT-FOUNDATIONS-EXAM-NEW-2023-2023-UPDATE-GRADED-A-QUESTIONS-AND-VERIFIED-ANSWERS100-CORRECT.\"><\/object><a id=\"wp-block-file--media-146cb03e-7ff8-469e-89bd-60ca2cd7a436\" href=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2023\/11\/WGU-D426-DATA-MANAGEMENT-FOUNDATIONS-EXAM-NEW-2023-2023-UPDATE-GRADED-A-QUESTIONS-AND-VERIFIED-ANSWERS100-CORRECT.pdf\" target=\"_blank\" rel=\"noopener\">WGU-D426-DATA-MANAGEMENT-FOUNDATIONS-EXAM-NEW-2023-2023-UPDATE-GRADED-A-QUESTIONS-AND-VERIFIED-ANSWERS100-CORRECT<\/a><a href=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2023\/11\/WGU-D426-DATA-MANAGEMENT-FOUNDATIONS-EXAM-NEW-2023-2023-UPDATE-GRADED-A-QUESTIONS-AND-VERIFIED-ANSWERS100-CORRECT.pdf\" class=\"wp-block-file__button wp-element-button\" aria-describedby=\"wp-block-file--media-146cb03e-7ff8-469e-89bd-60ca2cd7a436\" download target=\"_blank\" rel=\"noopener\">Download<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>WGU D426 Data Management Foundations Exam (New 2023\/ 2023 Update) | Graded A | Questions and Verified Answers|100% Correct WGU D426 Data Management FoundationsExam (New 2023\/ 2023 Update) | Graded A |Questions and Verified Answers|100%CorrectQUESTIONGroup of nodes connected by a LAN, managed by separate operating system instances. Similarto a parallel computer.Answer:ClusterQUESTIONRuns on a parallel computer [&hellip;]<\/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-129024","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/129024","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=129024"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/129024\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=129024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=129024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=129024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}