Column database - Study guides, Class notes & Summaries

DBI202 LATEST 2024 REAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) A GRADE What is the hierarchical data model? - Answer A hierarchical data model is a data model in which the data is organized into a tree-like structure A person who is responsible for the structure or schema of the database is called: - Answer a database administrator A database administrator (DBA) is a person that is also known by the title: - Answer Database Coordinator or Database Programmer A ___ is ...

WGU C170 EXAM QUESTIONS WITH CORRECT ANSWERS A salesperson is authorized to sell many products and a product can be sold by many salespersons. Which kind of binary relationship does this scenario describe? One-to-one One-to-many Many-to-many One-to-one binary - CORRECT ANSWERS Many-to-many Which two examples are attributes? Choose 2 answers A person attending a meeting An employee number A sales meeting A meeting code - CORRECT ANSWERS ...

WGU D426 V2 Questions and Answers Already Passed What is a transaction in the context of a database? A transaction is a sequence of database operations that are treated as a single unit, ensuring that all operations are completed successfully or none at all, to maintain data integrity. What are ACID properties in database management? ACID properties—Atomicity, Consistency, Isolation, Durability—ensure that database transactions are processed reliably and maintain data integr...

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 files How were data retrieved before database management systems? Sequ...

Data numeric, textual, visual, or or audio information that describes real world systems Scope the amount of data produces and collected can vary Format Data production type varies Access some sources are private some sources are public visualization data relationships presented in graphical format Database a collection of data in a structured format Database Management System DBMS reads and writes data in a database, ensures security, consistency, availabili...

WGU C175 Data Management Foundations Final Exam Questions and Answers 2024/2025 Graded A+ . Which of the following is true of business rules? entity A(n) _______ is anything about which data are to be collected and stored. XML/Hybrid data model Oracle 11g is an example of the _______. entity instance Each row in the relational table is known as a(n) relational data model MySQL is an example of the _______. attribute A(n) _______ is the equivalent of a field in a file system. entity re...

CHDA EXAM QUESTIONS AND ANSWERS 100% CORRECTCHDA EXAM QUESTIONS AND ANSWERS 100% CORRECTCHDA EXAM QUESTIONS AND ANSWERS 100% CORRECTCHDA EXAM QUESTIONS AND ANSWERS 100% CORRECT When an Entity Relationship Diagram (ERD) is implemented as a relational database, an attribute will become a(n): - ANSWER-Field Attributes are the characteristics or data elements to be collected about each entity. They can be depicted in an ERD as oval shapes coming off an entity. Attributes become the fields or c...

Database Administrator - Responsible for securing the database system against unauthorized users. A database administrator enforces procedures for user access and database system availability. Authorization - Many database users should have limited access to specific tables, columns, or rows of a database. Database systems authorize individual users to access specific data. Rules - Database systems ensure data is consistent with structural and business rules. Query Processor - Int...

What are the three tiers in GW application architecture - Correct Answer-Data, application, presentation (or user interface/web clients) In which tier are the following used? PCF Files, Gosu, and Data model entities? - Correct Answer-Presentation, application, and data respectively For each of the following, identify if it is stored as a database table, as a table column, or not stored in the database at all: a) An entity (such as ABContact) b) A physical data field (such as ABContact.Cr...

From which menu do you open the Source Browser? - correct answer FILE > Input > Source Browser Which button enables the Source Browser to display a file folder as a media volume? - correct answer Media Volume button In the Source Browser, how do you mark a folder as a favorite? - correct answer Find the folder, select it in the directory and click the STAR BUTTON at the top of the Source Browser Name two settings that affect how files are imported to Media Composer. - correct answ...