CS403-DBMS Quiz MCQS #Objective #Questions #Midterm
1. Student and Book are two entities, what is the cardinality between the two?
- Many to One
- One to Many
- Many to Many
- One to One
2. A description on a particular collection of data using the given data model
- Database
- Relation
- Schema
- None
3. Level of data at which entities or objects exist in reality is called
- Real world data
- Schema for real world data
- Meta data
- Data about data
4. Which model operates at the lowest level of abstraction?
- conceptual
- internal
- external
- physical
5. User rights information is stored in
- Physical database
- Catalog
- Logical database
- Buffer
6. Data about data is database
- True
- False
- Partially True
- None
7. Which one of the following is NOT a characteristic of meta data?
- Data about data
- Describes a data dictionary
- Self-describing
- Includes user data
8. A relationship that involves three entities is called ___
- Unary relationship
- Ternary relationship
- Binary relationship
- N-ary relationship
9. An entity type is
- defined when the database is actually constructed
- a specific type such as an integer, text, date, logical etc.
- a coherent set of similar objects that we want to store data on (e.g. STUDENT, COURSE, CAR)
- defined by the database designer
10. Which of the following is not a component of a DFD?
- Dataflow
- Datastore
- External entities
- Relationship between external entities
