WGU DATA MANAGEMENT FOUNDATIONS
D426 COMPREHENSIVE EXAM 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Analog Data. Answer: Most common before computers. Audio was
recorded as vibrations impressed on vinyl disks.
◉ Digital Data. Answer: Most common today. Encoded as 0s and 1s on
electronic magnetic data.
◉ Database. Answer: A collection of data in structured format. In
principle, can be stored on paper or even clay tablets.
◉ Database System (DBMS). Answer: Software that reads and writes in
a database.
◉ Query. Answer: 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. Answer: Specialized programming language
designed specifically for database systems. Reads and writes data
efficiently.
◉ Database Application. Answer: Software that HELPS business users
interact with database systems.
◉ Database Administrator. Answer: This role is responsible for securing
the database system against unauthorized users. They enforce procedures
for user access and database system availability.
◉ Database Designer. Answer: 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. Answer: Develop programs that utilize a
database and write applications that combine query languages and
general purpose programming language.
◉ Database User. Answer: A consumer of data in a database. They
request, update, or use stored data to generate reports or information.
◉ Transaction. Answer: A group of queries that MUST be completed or
rejected as a whole.
D426 COMPREHENSIVE EXAM 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Analog Data. Answer: Most common before computers. Audio was
recorded as vibrations impressed on vinyl disks.
◉ Digital Data. Answer: Most common today. Encoded as 0s and 1s on
electronic magnetic data.
◉ Database. Answer: A collection of data in structured format. In
principle, can be stored on paper or even clay tablets.
◉ Database System (DBMS). Answer: Software that reads and writes in
a database.
◉ Query. Answer: 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. Answer: Specialized programming language
designed specifically for database systems. Reads and writes data
efficiently.
◉ Database Application. Answer: Software that HELPS business users
interact with database systems.
◉ Database Administrator. Answer: This role is responsible for securing
the database system against unauthorized users. They enforce procedures
for user access and database system availability.
◉ Database Designer. Answer: 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. Answer: Develop programs that utilize a
database and write applications that combine query languages and
general purpose programming language.
◉ Database User. Answer: A consumer of data in a database. They
request, update, or use stored data to generate reports or information.
◉ Transaction. Answer: A group of queries that MUST be completed or
rejected as a whole.
