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Database Administrator
The data dictionary helps in maintaining data
by enforcing constraints and defining data types.
Which type of database model organizes data in a tree-like structure?
data redundancy
Which backup method copies only the data that has changed since the last full backup?
Which operation is used to retrieve data from a database?
What is the purpose of a DBMS report?
What is the advantage of using incremental backups?
What is the purpose of a primary key in a database?
A
database management system (RDBMS) uses tables to store data and relationships between different entities.
Data Warehousing
The user interface of a DBMS provides a way to
with the database.
Which type of relationship represents a one-to-many relationship between tables?
Which of the following is NOT true about a primary key?
The Structured Query Language (SQL) is a programming language used to
and manage data in a database management system.
Database management systems use indexes to improve the
of data retrieval operations.
Which of the following is an example of metadata?
A data dictionary contains information about the
of a database system.
What is the role of a DBMS user interface?
Database Management Systems
