Modification of Database Quiz Questions and Answers PDF - 437

MCQ 2181: We can delete only

1. Whole tuples
2. Attributes
3. Instances
4. Multiple attributes

MCQ 2182: To ensure serializability, the concurrency-control schemes operates in way(s) of

1. Delaying an operation
2. Aborting the transaction
3. Both A and B
4. Committing an operation

MCQ 2183: The actual protocol used to exchange information with the database, is not defined by the

1. Protocol
2. Connection
3. Driver
4. Standard

MCQ 2184: The conceptual framework specifies the

1. Structure
2. Systematic fashion
3. Models
4. Tools

MCQ 2185: Virtual Private Database (VPD) provides authorization at the level of

1. Rows
2. Tuples
3. Relations
4. All of the above