WGU C175/D426 DATA MANAGEMENT
FOUNDATIONS OA EXAM ACTUAL EXAM 2
LATEST VERSIONS 300 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES (100% CORRECT AND
VERIFIED ANSWERS)|ALREADY GRADED A+
•
•
•
•
•
2 reviews
, Responsible for securing the database system against unauthorized users. They enforce procedures for
user access and database system availability.;Database Designer - ASWER//What role am I?
Determines the format of each data element AND the overall database STRUCTURE. Must balance
priorities like including storage, response time, and support for rules that govern the data.;Database
Programmer - ASWER//What role am I?
- ASWER//Numeric, textual, visual, or audio information that describes real-world systems. It is Data
collected and processed to aid in a variety of tasks.;Analog Data - ASWER//Most common before
computers. Audio was recorded as vibrations impressed on vinyl disks.;Digital Data - ASWER//Most
common today. Encoded as 0s and 1s on electronic magnetic data.;Database - ASWER//A collection of
data in structured format. In principle, can be stored on paper or even clay tablets.;Database System
(DBMS) - ASWER//Software that reads and writes in a database.;Query - ASWER//A request to retrieve
or change data in a database. Typically inserts new data, retrieves data, updates, data, or deletes data
from a database.;Query Language - ASWER//Specialized programming language designed specifically for
database systems. Reads and writes data efficiently.;Database Application - ASWER//Software that
HELPS business users interact with database systems.;Database Administrator - ASWER//What role am
I?
Develop programs that utilize a database and write applications that combine query languages and
general purpose programming language.;Database User - ASWER//What role am I?
A consumer of data in a database. They request, update, or use stored data to generate reports or
information.;Transaction - ASWER//A group of queries that MUST be completed or rejected as a
whole.;Architecture - ASWER//Describes the internal components AND the relationships between
components.;Query Processor - ASWER//Interprets queries, creates a plan to modify the database or
retrieve the data, and returns query results to the application. Performs query optimization.;Query
Optimization - ASWER//Ensures efficient instructions are executed on the data from the Query
Processor.;Storage Manager - ASWER//Translates the query processor instructions into low-level file-
system commands that modify OR retrieve data. Uses indexes to quickly locate data.;Transaction
Manager - ASWER//Ensures transactions are properly executed. Prevents conflicts between concurrent
transactions. Also restores the database to a consistent state in the event of a failure.;Log - ASWER//A
file containing a complete record of ALL inserts, updates, and deletes processed by the database. The
records can be used to restore a database.;Catalog/Data Dictionary/Repository - ASWER//A directory of
tables, columns, indexes, and other database objects.;Relational Database - ASWER//Stores data in
tables, columns, and rows, SIMILAR to a spreadsheet. It also supports SQL. Made up of relations.;NoSQL
- ASWER//A new generation of DBMS that is NOT based on the traditional relational database
model.;CRUD - ASWER//Acronym for actions that can be performed by a query.;SQL Statement -
ASWER//A database command such as a query that inserts, retrieves, updates, or deletes data.
Composed of one or more clauses.;INSERT - ASWER//Inserts rows into a table.;SELECT -
FOUNDATIONS OA EXAM ACTUAL EXAM 2
LATEST VERSIONS 300 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES (100% CORRECT AND
VERIFIED ANSWERS)|ALREADY GRADED A+
•
•
•
•
•
2 reviews
, Responsible for securing the database system against unauthorized users. They enforce procedures for
user access and database system availability.;Database Designer - ASWER//What role am I?
Determines the format of each data element AND the overall database STRUCTURE. Must balance
priorities like including storage, response time, and support for rules that govern the data.;Database
Programmer - ASWER//What role am I?
- ASWER//Numeric, textual, visual, or audio information that describes real-world systems. It is Data
collected and processed to aid in a variety of tasks.;Analog Data - ASWER//Most common before
computers. Audio was recorded as vibrations impressed on vinyl disks.;Digital Data - ASWER//Most
common today. Encoded as 0s and 1s on electronic magnetic data.;Database - ASWER//A collection of
data in structured format. In principle, can be stored on paper or even clay tablets.;Database System
(DBMS) - ASWER//Software that reads and writes in a database.;Query - ASWER//A request to retrieve
or change data in a database. Typically inserts new data, retrieves data, updates, data, or deletes data
from a database.;Query Language - ASWER//Specialized programming language designed specifically for
database systems. Reads and writes data efficiently.;Database Application - ASWER//Software that
HELPS business users interact with database systems.;Database Administrator - ASWER//What role am
I?
Develop programs that utilize a database and write applications that combine query languages and
general purpose programming language.;Database User - ASWER//What role am I?
A consumer of data in a database. They request, update, or use stored data to generate reports or
information.;Transaction - ASWER//A group of queries that MUST be completed or rejected as a
whole.;Architecture - ASWER//Describes the internal components AND the relationships between
components.;Query Processor - ASWER//Interprets queries, creates a plan to modify the database or
retrieve the data, and returns query results to the application. Performs query optimization.;Query
Optimization - ASWER//Ensures efficient instructions are executed on the data from the Query
Processor.;Storage Manager - ASWER//Translates the query processor instructions into low-level file-
system commands that modify OR retrieve data. Uses indexes to quickly locate data.;Transaction
Manager - ASWER//Ensures transactions are properly executed. Prevents conflicts between concurrent
transactions. Also restores the database to a consistent state in the event of a failure.;Log - ASWER//A
file containing a complete record of ALL inserts, updates, and deletes processed by the database. The
records can be used to restore a database.;Catalog/Data Dictionary/Repository - ASWER//A directory of
tables, columns, indexes, and other database objects.;Relational Database - ASWER//Stores data in
tables, columns, and rows, SIMILAR to a spreadsheet. It also supports SQL. Made up of relations.;NoSQL
- ASWER//A new generation of DBMS that is NOT based on the traditional relational database
model.;CRUD - ASWER//Acronym for actions that can be performed by a query.;SQL Statement -
ASWER//A database command such as a query that inserts, retrieves, updates, or deletes data.
Composed of one or more clauses.;INSERT - ASWER//Inserts rows into a table.;SELECT -
