Question 1
Consider the instance of a relation R. Which among the following functional dependencies set can be inferred from the given information?
| StudentID | Course | Grade | Instructor |
|---|---|---|---|
| S1 | C1 | A | I1 |
| S1 | C2 | B | I2 |
| S2 | C1 | A | I1 |
| S3 | C3 | C | I3 |
| S2 | C2 | B | I2 |
| S4 | C4 | A | I4 |
Consider the instance of a relation R. Which among the following functional dependencies set can be inferred from the given information?
| StudentID | Course | Grade | Instructor |
|---|---|---|---|
| S1 | C1 | A | I1 |
| S1 | C2 | B | I2 |
| S2 | C1 | A | I1 |
| S3 | C3 | C | I3 |
| S2 | C2 | B | I2 |
| S4 | C4 | A | I4 |
Consider the following monthly backup schedule used by a company:
| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|
| 1/ Full | 2/ Incremental | 3/ Incremental | 4/ Incremental | 5/ Incremental | 6/ Incremental | 7/ Differential |
| 8/ Incremental | 9/ Incremental | 10/ Incremental | 11/ Incremental | 12/ Differential | 13/ Incremental | 14/ Incremental |
| 15/ Incremental | 16/ Incremental | 17/ Differential | 18/ Incremental | 19/ Incremental | 20/ Incremental | 21/ Incremental |
| 22/ Differential | 23/ Incremental | 24/ Incremental | 25/ Incremental | 26/ Incremental | 27/ Incremental | 28/ Incremental |
| 29/ Incremental | 30/ Incremental |
If a failure occurs on the 23rd day of the month after the backup for the day has been completed, how many backup sets have to be loaded for a full recovery?
4
5
6
3
Sign in with Google — it is free — to see every question with its answer and explanation, practise it in learning mode, or take it as a timed mock test.
The IIT Madras BS Database Management Systems (DBMS) End Term paper sat on 13 Apr 2025, in the January 2025 term, set QDD3: 20 questions for 50 marks in 180 minutes. The first 3 questions are below. Sign in with Google — it is free — to see the whole paper with its answers and explanations, in learning mode or as a timed mock test.
| Feature | DBMS End Term 13 Apr 2025 Set QDD3 at a glance |
|---|---|
| Term | January 2025 term |
| Subject | Database Management Systems |
| Course code | BSCS2001 |
| Questions | 20 |
| Marks | 50 |
| Duration | 180 min |
| MCQ | 8 |
| MSQ | 5 |
| Numerical | 7 |
| Official paper | IIT M DIPLOMA AN EXAM QDD3 13 Apr 2025 |
| Negative marking | No negative marking. |
| Updated |