CS403 Database Management Systems paper

Total 22 Questions, out of which

16 MCQs of marks 1 each
2 short questions of marks 2 each
2 short questions of marks 3 each (i'm not sure whether there were 2 short questions of marks 3 each or 3 short questions, but what I remember, there were 2 short questions of marks 3 each)
2 short questions of marks 5 each


Some of the short questions that I remember are:
I do not remember the exact statements of questions, but the concept which was asked in questions is as under:

1. For what purpose do we use Relational Data model?

2. What is the difference between Primary key and unique key with reference to null value?

3. Write two sub-categories of outer join?


4. attribute and key attribute, give example as well. (I think the question was, what is the difference b/w attribute and key attribute, anyways, I wrote about attribute and key attribute in answer with one example)

5. Explain union? (marks 5) (page # 152 of handouts)

6. What is first normal form? (page # 167 of handouts)

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Describe with example function of Union Operation in relational algebra (05 Marks)

Describe with example Refrential integrity constraints (03 Marks)

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Describe functional dependency (03 Marks)

Give atleast 02 benefits of Normalization (02 Marks)

What is Data Definition Language (DDL) ? (02 Marks)

What is data type? (02 Marks)