- AManipulative components
- BIntegrity constraints
- CStructural components
- DAll of these
Relational Model in DBMS - Quiz
- ATable
- BTree
- CNode
- DNone of these
- ATuples
- BSet of attributes
- CRelation name
- DBoth (b) and (c)
- AThe primary key consists of more than one attribute.
- BReferential integrity is violated when attempting to enter data.
- CIt contains multiple foreign keys.
- DAll of these.
- ASuperkey
- BIrreducible superkey
- CForeign key
- DPrimary key
- ASecondary key
- BForeign key
- CPrimary key
- DAlternate key
- ABe numeric.
- BMatch the field value of a primary key in a related table.
- CBe defined in all tables in the database.
- DBe unique.
- ARecursive joins
- BLoss of data from employee sabotage
- CLoss of data from any one corrupted table
- DData redundancy
- APrimary key attribute cannot have null value.
- BPrimary key constraint enforces entity integrity.
- CUnique key constraint is preferable over primary key constraint.
- DMultiple primary key constraints can be defined on a relation.
- AMany-to-many
- BOne-to-many
- COne-to-one
- DAll of these
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Relational Model in DBMS - Quiz
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Time Taken: Questions: Answered: Not Answered:
Correct Answer:
Wrong Answer:
Percentage: %
- A. Manipulative components
- B. Integrity constraints
- C. Structural components
- D. All of these
Remarks:
Explanation: All of these
- A. Table
- B. Tree
- C. Node
- D. None of these
Remarks:
Explanation: Table
- A. Tuples
- B. Set of attributes
- C. Relation name
- D. Both (b) and (c)
Remarks:
Explanation: Tuples
- A. The primary key consists of more than one attribute.
- B. Referential integrity is violated when attempting to enter data.
- C. It contains multiple foreign keys.
- D. All of these.
Remarks:
Explanation: All of these.
- A. Superkey
- B. Irreducible superkey
- C. Foreign key
- D. Primary key
Remarks:
Explanation: Irreducible superkey
- A. Secondary key
- B. Foreign key
- C. Primary key
- D. Alternate key
Remarks:
Explanation: Primary key
- A. Be numeric.
- B. Match the field value of a primary key in a related table.
- C. Be defined in all tables in the database.
- D. Be unique.
Remarks:
Explanation: Match the field value of a primary key in a related table.
- A. Recursive joins
- B. Loss of data from employee sabotage
- C. Loss of data from any one corrupted table
- D. Data redundancy
Remarks:
Explanation: Data redundancy
- A. Primary key attribute cannot have null value.
- B. Primary key constraint enforces entity integrity.
- C. Unique key constraint is preferable over primary key constraint.
- D. Multiple primary key constraints can be defined on a relation.
Remarks:
Explanation: Multiple primary key constraints can be defined on a relation.
- A. Many-to-many
- B. One-to-many
- C. One-to-one
- D. All of these
Remarks:
Explanation: One-to-one