Extended ER Features MCQ with Answers PDF Download – Test 304

MCQ 1516: In the top-down design of refinement, the distinctions are made:

1. Explicit
2. Blurred
3. Invisible
4. Dependent

MCQ 1517: Inserting a large number of entries into an index at a time is called:

1. Track loading
2. Bulk loading
3. Block loading
4. Composite loading

MCQ 1518: The Extensible Markup Language (XML) is widely used to represent:

1. Entity relationship model
2. Relational Model
3. Semi-structured data model
4. Object-based Data model

MCQ 1519: The designer maps the high-level conceptual schema onto the implementation data model of the database that will be used, in:

1. Logical design phase
2. Physical design phase
3. View design phase
4. Virtual design phase

MCQ 1520: In an E-R diagram, entity sets are represented by:

1. Rectangles divided into two parts
2. Undivided rectangle
3. Diamond
4. Circle