D426 data managemen - Study guides, Class notes & Summaries

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM Questions With Verified Answers 2024/2025 (Graded A+) What does modality refer to? How does it appear on ER diagram? - ANSWERRefers to the MINIMUM number of times an instance in one entity can be associated with instance of another entity (minima) Appears as a 0 or 1 on the relationship line, next to cardinality Define: Referential Integrity - ANSWER- Requires that ALL foreign key values must either be fully NULL or match some primary key val...

C175 WGU /D426 DATA MANAGEMENT FOUNDATIONS OA 2024- 2025 ACTUAL TESTBANK LATEST EXAMS|2 VERSIONS 300+ QUESTIONS AND CORRECT DETAILED ANSWERS |AGRADE

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS Final+1+2 Questions with 100% Correct Answers | Verified | Latest Update

WGU D426 Data Management Foundations Exam (Latest 2023/ 2023 Update) | Questions and Verified Answers|100% Correct| Grade A Q: The data about the data. Describes elements such as columns, names, and data type. Answer: Metadata Q: Ordered collection of elements in parentheses. Answer: Tuple Q: % of table rows selected by a query Answer: Hit Ration Q: Reads blocks directly, without accessing an index. Answer: Table Scan Q: Reads index blocks sequentially in...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM Questions With Verified Answers (100% Correct) Graded A+. What does modality refer to? How does it appear on ER diagram? - ANSWERRefers to the MINIMUM number of times an instance in one entity can be associated with instance of another entity (minima) Appears as a 0 or 1 on the relationship line, next to cardinality Define: Referential Integrity - ANSWER- Requires that ALL foreign key values must either be fully NULL or match some primary key...

WGU C175/d426 Data Management Foundations Final Exam Review Questions and Answers 2024/2025 | 100% SOLVED. What is a broad definition of data? Raw facts that are captured on printed or digital media What are data? Facts that are collected and stored in a database system What is a determining characteristic of unstructured data? It does not follow a data model. Which is true about flat files? They contain no internal hierarchical organization. Which technology has no internal hierarchy? Flat ...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS Study Notecards Questions with 100% Correct Answers | Verified | Latest Update

data Numeric, textual, visual, or audio information that describes real-world systems scope, format, and access 3 ways data can vary scope the amount of data produced and collected format describes that data may be produced as numbers, text, image, audio, or video access describes that some data sets may be private while others are made publicly available analog historically, most data was ____, encoded as continuous variations on various physical media digita...

WGU D426 Data Management Foundations Exam (New 2023/ 2023 Update) | Graded A | Questions and Verified Answers|100% Correct QUESTION Group of nodes connected by a LAN, managed by separate operating system instances. Similar to a parallel computer. Answer: Cluster QUESTION Runs on a parallel computer or cluster Answer: Parallel Database QUESTION Runs on multiple computers connected by a WAN Answer: Distributed Database QUESTION Updates data on mu...

WGU D426 Data Management Foundations Questions and Answers Graded A NB: Answers appear at the bottom of the choices. They are highlighted in yellow. Which requirement within large, complex databases ensures users have limited access to the database? Recovery Performance Authorization Confidentiality Authorization Which design type specifies database requirements without regard to a specific database system? Physical design Conceptual design Logical design Abstract design Conceptual design 3....