WGU D426 - Data Management Foundations
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Terms in this set (455)
Data numeric, textual, visual, or audio information that
describes real-world systems.
analog Historically, data was mostly ______________, encoded
as continuous variations on various physical media.
digital Today, data is mostly ______________, encoded as zeros
and ones on electronic and magnetic media.
database a collection of data in a structured format. In
principle, can be stored on paper or even clay
tablets. In practice, however, modern ones are
invariably stored on computers.
database system / database software that reads and writes data in a database.
management system / DBMS ensure data is secure, internally consistent, and
available at all times. These functions are
challenging for large databases with many users,
so data base systems are complex.
database application software that helps business users interact with
database systems.
, database administrator - responsible for securing the database system
against unauthorized users.
- enforces procedures for user access and
database system availability.
database designer determines the format of each data element and
the overall database structure. Must balance
several priorities, including storage, response time,
and support for rules that govern the data. Since
these priorities often conflict, database design is
technically challenging.
database programmer develops computer programs that utilize a
database.
database user - a consumer of data in a database.
request, update, or use stored data to generate
reports or information.
- usually access the database via applications but
can also submit queries directly to the database
system.
transaction a group of queries that must be either completed
or rejected as a whole. Execution of some, but not
all, queries results in inconsistent or incorrect data.
query processor - interprets queries, creates a plan to modify the
database or retrieve data, and returns query results
to the application.
- manages connections from multiple users and
compiles queries into low-level instructions for the
storage engine.
Exam | Questions and Answers | Verified
Solutions | 2026 Edition | Pass Guaranteed
Save
Terms in this set (455)
Data numeric, textual, visual, or audio information that
describes real-world systems.
analog Historically, data was mostly ______________, encoded
as continuous variations on various physical media.
digital Today, data is mostly ______________, encoded as zeros
and ones on electronic and magnetic media.
database a collection of data in a structured format. In
principle, can be stored on paper or even clay
tablets. In practice, however, modern ones are
invariably stored on computers.
database system / database software that reads and writes data in a database.
management system / DBMS ensure data is secure, internally consistent, and
available at all times. These functions are
challenging for large databases with many users,
so data base systems are complex.
database application software that helps business users interact with
database systems.
, database administrator - responsible for securing the database system
against unauthorized users.
- enforces procedures for user access and
database system availability.
database designer determines the format of each data element and
the overall database structure. Must balance
several priorities, including storage, response time,
and support for rules that govern the data. Since
these priorities often conflict, database design is
technically challenging.
database programmer develops computer programs that utilize a
database.
database user - a consumer of data in a database.
request, update, or use stored data to generate
reports or information.
- usually access the database via applications but
can also submit queries directly to the database
system.
transaction a group of queries that must be either completed
or rejected as a whole. Execution of some, but not
all, queries results in inconsistent or incorrect data.
query processor - interprets queries, creates a plan to modify the
database or retrieve data, and returns query results
to the application.
- manages connections from multiple users and
compiles queries into low-level instructions for the
storage engine.
