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Quiz4_Navathe

Quiz4_Navathe - NAME GT ID CS 4400 A(NAVATHE QUIZ 4 Spring...

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NAME:_______________________________ GT ID:_______________ CS 4400 A (NAVATHE) QUIZ 4 Spring 2007 1. A B C D 2. A B C D 3. A B 4. A B C D 5. A B C D 6. A B C D 7. A B 8. A B C D 9. A B C D 10. A B 11. A B 12. A B C D 13. A B C D 14. A B C D 15. A B 16. A B C D 17. A B C D 18. A B C D 19. A B C D 20. A B C D CS 4400 – Quiz 4 Page 1 Navathe (Sec A)
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GT ID:_____________________ QUIZ 4 CS 4400 A (Navathe) Spring 2007 In problems 1 through 3, consider the set of attributes {A, C, D, E, H} in relation R and the two sets of functional dependencies: F = {A→C, AC→D, E→AD, E→H} and G = {A→CD, E→AH}. 1. Which is a key of R according to F? a) A b) AH c) E d) CD 2. What is {A} + computed with respect to F? a) {A} b) {A, C} c) {A, C, D} d) {A, C, D, E} 3. Are the sets F and G equivalent? a) No b) Yes For questions 4 through 15, consider the relational schema Book_adopt (instructor, course, book, semester, inst_office, credits, no_exams) and the set of functional dependencies F = {instructor→ inst_office, course,semester→book, semester →no_exams course→credits, course,semester→instructor}. NOTE:
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  • Spring '07
  • Marks
  • Databases, Relational model, Database normalization, Seek time, B B B B B B B B B B B B B B B B B B B C C C C C D D D D D C C C D D D C C D D C C C D D D C C D D, Book_adopt schema

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Quiz4_Navathe - NAME GT ID CS 4400 A(NAVATHE QUIZ 4 Spring...

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