GRADE XII – COMPUTER SCIENCE (4281) Set 1 Full Marks: 50 | Time: 2 Hrs Group A [9x1=9] Rewrite the correct options of each question in your answer sheet 1. Which of the following gives the logical structure of database graphically? a. Database diagram b. Entity diagram c. Architectural representation d. Entity relationship diagram 2. How many primary keys can have in a Table? a. only 1 b. only 2 c. Depends on number of columns d. Depends on DBA 3. Find the cities name with the condition and temperature from table 'whether' where condition = sunny or cloudy but temperatu...
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