DBMS-DIAGNOSTIC TEST -1
DBMS Diagnostic Test
Test your knowledge of Database Management Systems with our engaging DBMS Diagnostic Test. This quiz is designed for those looking to assess their understanding of key concepts in database design, architectures, and fun
Key Features:
- Multiple choice questions
- Immediate feedback on your answers
- Suitable for students, professionals, and enthusiasts alike
Which of the following can be a candidate key for the following instance?
{EmpName}
(Emplame, Branch)
(Branch)
(EmpName, Address)
Identify the correct statement(s) from the following.
The overall physical structure of the database is called physical schema.
The actual content of the database at a particular point in time is called an instance.
Data dictionary does not contain any database schema.
Physical schema describes how data is stored in the database and the relationships among the data.
Identify the incorrect statement(s).
Uper Key is a set of one or more attributes that, taken collectively, allows us to uniquely identify an entity in the entity set.
A proper subset of a candidate key is called a Super Key.
The minimal set of attributes that allows us to uniquely identify an entity in the entity set is called a candidate key.
A proper subset of a Super Key is not always a Candidate Key.
Consider the following instance:
MLDatabase (Model, Accuracy. Dataset, TrainingData).
MLDatabase (Model, Accuracy, Datanet, TrainingData).
MLDatabase (Model, Accuracy, Dataset, TrainingData).
MLDatabase (Model, Accuracy, Dataset, TrainingData).
'DATA MODEL' is nothing but a data structure where data is stored
TRUE
FALSE
An RDBMS typically manage more than one database
TRUE
FALSE
People who make use of application programs need to know the logical schema of the database completely
TRUE
FALSE
People who develop the application programs need to know the physical schema of the database
TRUE
FALSE
A "log" in the RDBMS keeps track of update operations of all transactions
TRUE
FALSE
RDBMS
Relational database system
Relational database management systems
Relational data manage systems
Relative database management systems
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