WGU D514 OBJECTIVE ASSESSMENT FINAL/WGU
D514 ANALYTICAL METHODS OF HEALTHCARE
LEADERS OA EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Software that helps business users interact with database systems. -
answer-Database Application
Responsible for securing the database system against unauthorized
users. A database administrator enforces procedures for user access
and database system availability. - answer-Database Administrator
Interprets queries, creates a plan to modify the database or retrieve
data, and returns query results to the application. Performs query
optimization to ensure the most efficient instructions are executed
on the data. - answer-Query Processor
Translates the query processor instructions into low-level file-system
commands that modify or retrieve data. Database sizes range from
,megabytes to many terabytes, so the storage manager uses indexes
to quickly locate data. - answer-Storage Manager
Ensures transactions are properly executed. The transaction
manager prevents conflicts between concurrent transactions. The
transaction manager also restores the database to a consistent state
in the event of a transaction or system failure. - answer-Transaction
Manager
Data about the database, such as column names and the number of
rows in each table. - answer-Metadata
Stores data in tables, columns, and rows, similar to a spreadsheet. -
answer-Relational Database
All _________ ________ systems support the SQL query language. -
answer-Relational Database
Relational systems are ideal for databases that require an accurate
record of every transaction, such as banking, airline reservation
systems, and student records. - answer-Relational Database
The newer non-relational systems are called NoSQL, for 'not only
SQL', and are optimized for big data. - answer-MongoDB (NoSQL)
, INSERT inserts rows into a table.
SELECT retrieves data from a table.
A _____ has a name, a fixed tuple of columns, and a varying set of
rows. - answer-Table
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. - answer-Authorization
Database systems ensure data is consistent with structural and
business rules. - answer-Rules
A ______ has a name and a data type. - answer-Column
Is an unnamed tuple of values. Each value corresponds to a column
and belongs to the column's data type. - answer-Row
A ____ _____ is a named set of values, from which column values are
drawn. - answer-Data Type
D514 ANALYTICAL METHODS OF HEALTHCARE
LEADERS OA EXAM NEWEST 2025 ACTUAL EXAM TEST
BANK QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Software that helps business users interact with database systems. -
answer-Database Application
Responsible for securing the database system against unauthorized
users. A database administrator enforces procedures for user access
and database system availability. - answer-Database Administrator
Interprets queries, creates a plan to modify the database or retrieve
data, and returns query results to the application. Performs query
optimization to ensure the most efficient instructions are executed
on the data. - answer-Query Processor
Translates the query processor instructions into low-level file-system
commands that modify or retrieve data. Database sizes range from
,megabytes to many terabytes, so the storage manager uses indexes
to quickly locate data. - answer-Storage Manager
Ensures transactions are properly executed. The transaction
manager prevents conflicts between concurrent transactions. The
transaction manager also restores the database to a consistent state
in the event of a transaction or system failure. - answer-Transaction
Manager
Data about the database, such as column names and the number of
rows in each table. - answer-Metadata
Stores data in tables, columns, and rows, similar to a spreadsheet. -
answer-Relational Database
All _________ ________ systems support the SQL query language. -
answer-Relational Database
Relational systems are ideal for databases that require an accurate
record of every transaction, such as banking, airline reservation
systems, and student records. - answer-Relational Database
The newer non-relational systems are called NoSQL, for 'not only
SQL', and are optimized for big data. - answer-MongoDB (NoSQL)
, INSERT inserts rows into a table.
SELECT retrieves data from a table.
A _____ has a name, a fixed tuple of columns, and a varying set of
rows. - answer-Table
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. - answer-Authorization
Database systems ensure data is consistent with structural and
business rules. - answer-Rules
A ______ has a name and a data type. - answer-Column
Is an unnamed tuple of values. Each value corresponds to a column
and belongs to the column's data type. - answer-Row
A ____ _____ is a named set of values, from which column values are
drawn. - answer-Data Type
