Entity Relationship Diagrams Multiple Choice Questions (MCQ) PDF - 44

MCQ 216: If a relationship set has some associated attributes, then it is enclosed in a

1. Diamond
2. Double Diamond
3. Rectangle
4. Circle

MCQ 217: The iteration through all the tuples can be performed in the embedded statements by using the

1. Select operation
2. Define operation
3. Fetch operation
4. Commit operation

MCQ 218: The component of storage manager, which ensures that the database remains in a consistent state despite of system failures, is known as

1. File manager
2. Authorization and integrity manager
3. Buffer manager
4. Transaction manager

MCQ 219: The entity-relationship model is widely used in

1. Database design
2. Database processing
3. Database implementation
4. Database direction

MCQ 220: The number of transactions that can be processed on a system in average per unit of time, is known to be its

1. Queue time
2. Buffer time
3. Throughput
4. Response time