WGU D278 Objective Assessment for Scripting and Programming - Foundations includes
accurate and verified questions covering Python fundamentals, control structures (if/else,
loops), functions, data types, input/output operations, basic debugging, and
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
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
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
,WGU D278 Objective Assessment for Scripting and Programming - Foundations includes
accurate and verified questions covering Python fundamentals, control structures (if/else,
loops), functions, data types, input/output operations, basic debugging, and
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.
UPDATE modifies data in a table.
DELETE deletes rows from a table. - (answer)SQL Statements
A statement that creates a new table by specifying the table and column names. Each column is
assigned a data type that indicates the format of column values. Data types can be numeric, textual, or
complex. - (answer)CREATE TABLE (Statement)
INT stores integer values.
DECIMAL stores fractional numeric values.
VARCHAR stores textual values.
DATE stores year, month, and day. - (answer)Data Type
Analysis
Logical design
, WGU D278 Objective Assessment for Scripting and Programming - Foundations includes
accurate and verified questions covering Python fundamentals, control structures (if/else,
loops), functions, data types, input/output operations, basic debugging, and
Physical design - (answer)Database Design
This phase specifies database requirements without regard to a specific database system. Requirements
are represented as entities, relationships, and attributes. An entity is a person, place, activity, or thing. A
relationship is a link between entities, and an attribute is a descriptive property of an entity. -
(answer)Analysis Phase, Conceptual Design, Entity-Relationship Modeling (Database Design)
This phase implements database requirements in a specific database system. For relational database
systems, _________ design converts entities, relationships, and attributes into tables, keys, and
columns. - (answer)Logical Design (Database Design)
Specifies indexes, table structures, and partitions. This phase adds indexes and specifies how tables are
organized on storage media. Affects query processing speed but never affects the query result. -
(answer)Physical Design
Allows database designers to tune query performance without changes to application programs. -
(answer)Data Independence
To simplify the use of SQL with a general-purpose language, database programs typically use an
____________ _____________ _______________. - (answer)Application Programming Interface (API)
A text interface included in the MySQL Server download. - (answer)MySQL Command-Line Client
'World' database, a database that is usually installed with ______. - (answer)MySQL
MySQL Server returns an _____ ____ and description when an SQL statement is syntactically incorrect
or the database cannot execute the statement. - (answer)Error Code
accurate and verified questions covering Python fundamentals, control structures (if/else,
loops), functions, data types, input/output operations, basic debugging, and
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
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
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
,WGU D278 Objective Assessment for Scripting and Programming - Foundations includes
accurate and verified questions covering Python fundamentals, control structures (if/else,
loops), functions, data types, input/output operations, basic debugging, and
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.
UPDATE modifies data in a table.
DELETE deletes rows from a table. - (answer)SQL Statements
A statement that creates a new table by specifying the table and column names. Each column is
assigned a data type that indicates the format of column values. Data types can be numeric, textual, or
complex. - (answer)CREATE TABLE (Statement)
INT stores integer values.
DECIMAL stores fractional numeric values.
VARCHAR stores textual values.
DATE stores year, month, and day. - (answer)Data Type
Analysis
Logical design
, WGU D278 Objective Assessment for Scripting and Programming - Foundations includes
accurate and verified questions covering Python fundamentals, control structures (if/else,
loops), functions, data types, input/output operations, basic debugging, and
Physical design - (answer)Database Design
This phase specifies database requirements without regard to a specific database system. Requirements
are represented as entities, relationships, and attributes. An entity is a person, place, activity, or thing. A
relationship is a link between entities, and an attribute is a descriptive property of an entity. -
(answer)Analysis Phase, Conceptual Design, Entity-Relationship Modeling (Database Design)
This phase implements database requirements in a specific database system. For relational database
systems, _________ design converts entities, relationships, and attributes into tables, keys, and
columns. - (answer)Logical Design (Database Design)
Specifies indexes, table structures, and partitions. This phase adds indexes and specifies how tables are
organized on storage media. Affects query processing speed but never affects the query result. -
(answer)Physical Design
Allows database designers to tune query performance without changes to application programs. -
(answer)Data Independence
To simplify the use of SQL with a general-purpose language, database programs typically use an
____________ _____________ _______________. - (answer)Application Programming Interface (API)
A text interface included in the MySQL Server download. - (answer)MySQL Command-Line Client
'World' database, a database that is usually installed with ______. - (answer)MySQL
MySQL Server returns an _____ ____ and description when an SQL statement is syntactically incorrect
or the database cannot execute the statement. - (answer)Error Code
