Relational Model Constraints MCQs with Answers PDF Download – Test 106

MCQ 526: The type of constraint which states that not even a single value with primary key can be a null value is classified as:

1. null integrity constraint
2. primary integrity constraint
3. secondary integrity constraint
4. entity integrity constraint

MCQ 527: In disks, the tracks having same diameter on different surfaces are classified as:

1. sector
2. blocks
3. track
4. cylinder

MCQ 528: The conclusion of the template is a condition which must be held on tuples hypothesis in the template dependency called:

1. schema generating templates
2. relation filtering template
3. constraint generating templates
4. tuple generating templates

MCQ 529: The type of data manipulation language which is used to describe the complex operations in more precise way is classified as:

1. internal mapping language
2. non procedural language
3. procedural language
4. external mapping language

MCQ 530: Considering the constraints of generalization and specialization, the constraint of disjointness and completeness is usually:

1. non calculated
2. non defined
3. independence
4. dependence