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Data Management - Foundations - D426 WGU
Questions and Answers (100% Correct
Answers) Already Graded A+
Data Ans: Numeric, textual, visual, or audio information that describes
real-world systems. It is collected and processed to aid in a variety of
tasks.
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Analog Data Ans: Most common before computers. Audio was
recorded as vibrations impressed on vinyl disks.
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Digital Data Ans: Most common today. Encoded as 0s and 1s on
electronic magnetic data.
Database Ans: A collection of data in structured format. In principle,
can be stored on paper or even clay tablets.
Database System (DBMS) Ans: Software that reads and writes in a
database.
Query Ans: 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 Ans: Specialized programming language designed
specifically for database systems. Reads and writes data efficiently.
Database Application Ans: Software that HELPS business users interact
with database systems.
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Database Administrator Ans: What role am I?
Responsible for securing the database system against unauthorized
users. They enforce procedures for user access and database system
availability.
Database Designer Ans: What role am I?
Determines the format of each data element AND the overall database
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STRUCTURE. Must balance priorities like including storage, response time,
and support for rules that govern the data.
Database Programmer Ans: What role am I?
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Develop programs that utilize a database and write applications that
combine query languages and general purpose programming
language.
Database User Ans: What role am I?
A consumer of data in a database. They request, update, or use stored
data to generate reports or information.
Transaction Ans: A group of queries that MUST be completed or
rejected as a whole.
Architecture Ans: Describes the internal components AND the
relationships between components.
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Query Processor Ans: 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 Ans: Ensures efficient instructions are executed on
the data from the Query Processor.
Storage Manager Ans: Translates the query processor instructions into
low-level file-system commands that modify OR retrieve data. Uses
indexes to quickly locate data.
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Transaction Manager Ans: Ensures transactions are properly executed.
Prevents conflicts between concurrent transactions. Also restores the
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database to a consistent state in the event of a failure.
Log Ans: 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 Ans: A directory of tables, columns,
indexes, and other database objects.
Relational Database Ans: Stores data in tables, columns, and rows,
SIMILAR to a spreadsheet. It also supports SQL. Made up of relations.
NoSQL Ans: A new generation of DBMS that is NOT based on the
traditional relational database model.
CRUD Ans: Acronym for actions that can be performed by a query.
1
Data Management - Foundations - D426 WGU
Questions and Answers (100% Correct
Answers) Already Graded A+
Data Ans: Numeric, textual, visual, or audio information that describes
real-world systems. It is collected and processed to aid in a variety of
tasks.
© 2026 Assignment Expert
Analog Data Ans: Most common before computers. Audio was
recorded as vibrations impressed on vinyl disks.
Guru01 - Stuvia
Digital Data Ans: Most common today. Encoded as 0s and 1s on
electronic magnetic data.
Database Ans: A collection of data in structured format. In principle,
can be stored on paper or even clay tablets.
Database System (DBMS) Ans: Software that reads and writes in a
database.
Query Ans: 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 Ans: Specialized programming language designed
specifically for database systems. Reads and writes data efficiently.
Database Application Ans: Software that HELPS business users interact
with database systems.
,For Expert help and assignment handling,
2
Database Administrator Ans: What role am I?
Responsible for securing the database system against unauthorized
users. They enforce procedures for user access and database system
availability.
Database Designer Ans: What role am I?
Determines the format of each data element AND the overall database
© 2026 Assignment Expert
STRUCTURE. Must balance priorities like including storage, response time,
and support for rules that govern the data.
Database Programmer Ans: What role am I?
Guru01 - Stuvia
Develop programs that utilize a database and write applications that
combine query languages and general purpose programming
language.
Database User Ans: What role am I?
A consumer of data in a database. They request, update, or use stored
data to generate reports or information.
Transaction Ans: A group of queries that MUST be completed or
rejected as a whole.
Architecture Ans: Describes the internal components AND the
relationships between components.
, For Expert help and assignment handling,
3
Query Processor Ans: 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 Ans: Ensures efficient instructions are executed on
the data from the Query Processor.
Storage Manager Ans: Translates the query processor instructions into
low-level file-system commands that modify OR retrieve data. Uses
indexes to quickly locate data.
© 2026 Assignment Expert
Transaction Manager Ans: Ensures transactions are properly executed.
Prevents conflicts between concurrent transactions. Also restores the
Guru01 - Stuvia
database to a consistent state in the event of a failure.
Log Ans: 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 Ans: A directory of tables, columns,
indexes, and other database objects.
Relational Database Ans: Stores data in tables, columns, and rows,
SIMILAR to a spreadsheet. It also supports SQL. Made up of relations.
NoSQL Ans: A new generation of DBMS that is NOT based on the
traditional relational database model.
CRUD Ans: Acronym for actions that can be performed by a query.
