C790 WGU FOUNDATIONS IN NURSING
INFORMATICS EXAM Q&A: 2026 STUDY GUIDE
FULL SOLUTION GRADED A+
◉ database management system (DBMS). Answer: a software program
that is used to manage, organize, and retrieve data and information from
a database
◉ database model. Answer: model that is used to structure the data in a
database
ie- relational database model (microsoft office)
◉ Hierarchical Databases. Answer: contain many levels.
conceptualized as a family tree wherein each child has one parent. The
root is the head of the family. The branches, or second level, are the
children who are descended from the root. The third level, the
grandchildren, are descended from the second-level parents.
Communication among the descendants occurs by passing information
up or down to the common parent or child until the desired level is
reached.
, older mainframe DBMS
works well for data sets with one-to-many relationships
requires professional programmers for maintenance
◉ network databases. Answer: designed to solve the redundancy
problem that occurs with the hierarchical model
Although this model is very similar to the hierarchical model, children
are permitted to have more than one parent. The records are linked
together by pointers that use a key piece of data (e.g., a patient medical
record number).
requires professional programmers for maintenance
◉ relational database. Answer: The basic structure in this model is a
table. The database consists of several tables. A unique field within the
tables is used to combine or join the tables. In contrast to users of
hierarchical and network databases, users of relational databases need to
know only the name of a table in order to locate data
◉ object oriented database management system. Answer: in a relational
DBMS there is a separation between the data storage and the
manipulation methods. This separation of data and methods for
INFORMATICS EXAM Q&A: 2026 STUDY GUIDE
FULL SOLUTION GRADED A+
◉ database management system (DBMS). Answer: a software program
that is used to manage, organize, and retrieve data and information from
a database
◉ database model. Answer: model that is used to structure the data in a
database
ie- relational database model (microsoft office)
◉ Hierarchical Databases. Answer: contain many levels.
conceptualized as a family tree wherein each child has one parent. The
root is the head of the family. The branches, or second level, are the
children who are descended from the root. The third level, the
grandchildren, are descended from the second-level parents.
Communication among the descendants occurs by passing information
up or down to the common parent or child until the desired level is
reached.
, older mainframe DBMS
works well for data sets with one-to-many relationships
requires professional programmers for maintenance
◉ network databases. Answer: designed to solve the redundancy
problem that occurs with the hierarchical model
Although this model is very similar to the hierarchical model, children
are permitted to have more than one parent. The records are linked
together by pointers that use a key piece of data (e.g., a patient medical
record number).
requires professional programmers for maintenance
◉ relational database. Answer: The basic structure in this model is a
table. The database consists of several tables. A unique field within the
tables is used to combine or join the tables. In contrast to users of
hierarchical and network databases, users of relational databases need to
know only the name of a table in order to locate data
◉ object oriented database management system. Answer: in a relational
DBMS there is a separation between the data storage and the
manipulation methods. This separation of data and methods for
