WGU D427 DATA MANAGEMENT
APPLICATIONS 2026 SOLVED QUESTIONS
ANSWERS GRADED A PLUS DATABASE
ADMINISTRATION HANDBOOK
◉ Which component is responsible for executing instructions from
the query processor?
Answer: Storage engine
◉ The BETWEEN operator checks if a value is:
Answer: Between an inclusive range of two values
◉ Which relationship involves a salesperson and products they sell?
Answer: Binary
◉ What does the 'many' in a 1-M relationship imply?
Answer: No exact numerical limit but more than one
◉ MySQL architecture is organized into how many layers?
Answer: Four
, ◉ In a unary relationship, what kind of relationship is described?
Answer: A relationship where an entity is related to itself
◉ What does modality represent in an ER Diagram?
Answer: The minimum number of entity occurrences that can be
involved in a relationship
◉ Which storage media has the fastest access time?
Answer: Main memory (RAM)
◉ Which of the following is NOT a characteristic of a database
system?
Answer: Stores data in an unstructured format
◉ Which SQL command is used to delete a table?
Answer: DROP TABLE
◉ MySQL Workbench is designed for:
Answer: Both database administrators and users
◉ What is a primary function of a Database Management System
(DBMS)?
APPLICATIONS 2026 SOLVED QUESTIONS
ANSWERS GRADED A PLUS DATABASE
ADMINISTRATION HANDBOOK
◉ Which component is responsible for executing instructions from
the query processor?
Answer: Storage engine
◉ The BETWEEN operator checks if a value is:
Answer: Between an inclusive range of two values
◉ Which relationship involves a salesperson and products they sell?
Answer: Binary
◉ What does the 'many' in a 1-M relationship imply?
Answer: No exact numerical limit but more than one
◉ MySQL architecture is organized into how many layers?
Answer: Four
, ◉ In a unary relationship, what kind of relationship is described?
Answer: A relationship where an entity is related to itself
◉ What does modality represent in an ER Diagram?
Answer: The minimum number of entity occurrences that can be
involved in a relationship
◉ Which storage media has the fastest access time?
Answer: Main memory (RAM)
◉ Which of the following is NOT a characteristic of a database
system?
Answer: Stores data in an unstructured format
◉ Which SQL command is used to delete a table?
Answer: DROP TABLE
◉ MySQL Workbench is designed for:
Answer: Both database administrators and users
◉ What is a primary function of a Database Management System
(DBMS)?
