WGU d426 2024-2025 NEWEST EXAM WITH 200 REVIEW
QUESTIONS & CORRECT VERIFIED ANSWERS ALREADY GRADED
A+/ WESTERN GOVERNORS UNIVERSITY D027 ACTUAL EXAM
(LATEST)
Data
Data is numeric, textual, visual or audio information that
describes real-world systems.
Analog
Historically, data was mostly analog, encoded as continuous
variations on various physical media
digital
,today, data is mostly digital, encoded as zeros and ones on
electronic and magnetic medai
Database
a collection of data in a structured format
database system
also known as DBMS, is software that reads and writes data in a
database. ensures data is secure, consistent and available at all
times
query language
a specialized programming language, designed specifically for
database systems.
database application
software that helps business users interact with database
systems.
,database administrator
responsible for securing the database system against
unauthorized users
database designer
determines the format of each data element and the overall
database structure.
database programmer
develops computer programs that utilize a database
database user
a consumer of data in a database.
transaction
, A group of queries that must be either completed or rejected as
a whole
architecture
describes the internal components and the relationship
between components.
query processor
interprets queries, creates a plan to modify the databse or
retrieve data, and returns query results to the application.
query optimization
performed by the query processor to ensure the most efficient
instructions are executed on the data.
storage manager
translates the query processor instructions into low-level file-
system commands that modify or retrieve data.
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