Weak Entity Types Multiple Choice Questions (MCQs) PDF Download - 100

The kind of entities without any key attributes are classified as

1. weak entity
2. strong entity
3. single entity
4. foreign entity

The most popular high level conceptual model in database management system is

1. close end relation model
2. query relation model
3. entity relationship model
4. attribute relationship model

The maximum number of instances that can participate into the binary relationship is classified as

1. floating ratio
2. cardinality ratio
3. intensive ratio
4. extensive ratio

The data model which works as bridge to overcome communication gap between application developers and database designers is classified as

1. rational rose data modeler
2. state chart data modeler
3. sequential data modeler
4. structural data modeler

The process which includes the functions such as retrieving particular data with the help of specific queries and generating reports of that data is classified as

1. constructing the database
2. manipulating the database
3. retrieving the database
4. controlling the database