WGU D426 Data Management Foundations OA | High-
Yield Questions & Answers,& Study Guide | Frequently
Most Tested Questions |100% Guarantee Pass and
Accurate | Well Verified and Updated | Latest Exam
and Brand New Version!!!!
Data
CORRECT ANSWER:
Numeric, textual, visual, or audio information that describes real-world systems.
It is collected and processed to aid in a variety of tasks.
Analog Data
CORRECT ANSWER:
Most common before computers. Audio was recorded as vibrations impressed
on vinyl disks.
Digital Data
CORRECT ANSWER:
Most common today. Encoded as 0s and 1s on electronic magnetic data.
Database
CORRECT ANSWER:
A collection of data in structured format. In principle, can be stored on paper or
even clay tablets.
Database System (DBMS)
CORRECT ANSWER:
,Software that reads and writes in a database.
Query
CORRECT 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
CORRECT ANSWER:
Specialized programming language designed specifically for database systems.
Reads and writes data efficiently.
Database Application
CORRECT ANSWER:
Software that HELPS business users interact with database systems.
Database Administrator
CORRECT ANSWER:
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
CORRECT ANSWER:
What role am I?
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
CORRECT ANSWER:
What role am I?
Develop programs that utilize a database and write applications that combine
query languages and general purpose programming language.
,Database User
CORRECT ANSWER:
What role am I?
A consumer of data in a database. They request, update, or use stored data to
generate reports or information.
Transaction
CORRECT ANSWER:
A group of queries that MUST be completed or rejected as a whole.
Architecture
CORRECT ANSWER:
Describes the internal components AND the relationships between components.
Query Processor
CORRECT ANSWER:
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
CORRECT ANSWER:
Ensures efficient instructions are executed on the data from the Query
Processor.
Storage Manager
CORRECT ANSWER:
Translates the query processor instructions into low-level file-system commands
that modify OR retrieve data. Uses indexes to quickly locate data.
Transaction Manager
CORRECT ANSWER:
Ensures transactions are properly executed. Prevents conflicts between
concurrent transactions. Also restores the database to a consistent state in the
event of a failure.
, Log
CORRECT ANSWER:
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
CORRECT ANSWER:
A directory of tables, columns, indexes, and other database objects.
Relational Database
CORRECT ANSWER:
Stores data in tables, columns, and rows, SIMILAR to a spreadsheet. It also
supports SQL. Made up of relations.
NoSQL
CORRECT ANSWER:
A new generation of DBMS that is NOT based on the traditional relational
database model.
CRUD
CORRECT ANSWER:
Acronym for actions that can be performed by a query.
SQL Statement
CORRECT ANSWER:
A database command such as a query that inserts, retrieves, updates, or
deletes data. Composed of one or more clauses.
INSERT
CORRECT ANSWER:
Inserts rows into a table.
SELECT
CORRECT ANSWER:
Retrieves data from a table.
Yield Questions & Answers,& Study Guide | Frequently
Most Tested Questions |100% Guarantee Pass and
Accurate | Well Verified and Updated | Latest Exam
and Brand New Version!!!!
Data
CORRECT ANSWER:
Numeric, textual, visual, or audio information that describes real-world systems.
It is collected and processed to aid in a variety of tasks.
Analog Data
CORRECT ANSWER:
Most common before computers. Audio was recorded as vibrations impressed
on vinyl disks.
Digital Data
CORRECT ANSWER:
Most common today. Encoded as 0s and 1s on electronic magnetic data.
Database
CORRECT ANSWER:
A collection of data in structured format. In principle, can be stored on paper or
even clay tablets.
Database System (DBMS)
CORRECT ANSWER:
,Software that reads and writes in a database.
Query
CORRECT 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
CORRECT ANSWER:
Specialized programming language designed specifically for database systems.
Reads and writes data efficiently.
Database Application
CORRECT ANSWER:
Software that HELPS business users interact with database systems.
Database Administrator
CORRECT ANSWER:
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
CORRECT ANSWER:
What role am I?
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
CORRECT ANSWER:
What role am I?
Develop programs that utilize a database and write applications that combine
query languages and general purpose programming language.
,Database User
CORRECT ANSWER:
What role am I?
A consumer of data in a database. They request, update, or use stored data to
generate reports or information.
Transaction
CORRECT ANSWER:
A group of queries that MUST be completed or rejected as a whole.
Architecture
CORRECT ANSWER:
Describes the internal components AND the relationships between components.
Query Processor
CORRECT ANSWER:
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
CORRECT ANSWER:
Ensures efficient instructions are executed on the data from the Query
Processor.
Storage Manager
CORRECT ANSWER:
Translates the query processor instructions into low-level file-system commands
that modify OR retrieve data. Uses indexes to quickly locate data.
Transaction Manager
CORRECT ANSWER:
Ensures transactions are properly executed. Prevents conflicts between
concurrent transactions. Also restores the database to a consistent state in the
event of a failure.
, Log
CORRECT ANSWER:
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
CORRECT ANSWER:
A directory of tables, columns, indexes, and other database objects.
Relational Database
CORRECT ANSWER:
Stores data in tables, columns, and rows, SIMILAR to a spreadsheet. It also
supports SQL. Made up of relations.
NoSQL
CORRECT ANSWER:
A new generation of DBMS that is NOT based on the traditional relational
database model.
CRUD
CORRECT ANSWER:
Acronym for actions that can be performed by a query.
SQL Statement
CORRECT ANSWER:
A database command such as a query that inserts, retrieves, updates, or
deletes data. Composed of one or more clauses.
INSERT
CORRECT ANSWER:
Inserts rows into a table.
SELECT
CORRECT ANSWER:
Retrieves data from a table.
