Database Design Using Normalization Questions and Answers

Practice Mode
Showing 10 of 21 questions
Q11
When assessing the table structure of an acquired set of tables with data, determining functional dependencies is (part of) the:
  • A first step.
  • B second step.
  • C third step.
  • D fourth step.
Answer: Option B
Q12
Each answer below shows example data from a table. Which answer is an example of the multivalue, multicolumn problem?
  • A Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
  • B Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
  • C Three rows have the values Brown, NULL, and Blue in the same column.
  • D One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.
Answer: Option A
Q13
When assessing the table structure of an acquired set of tables with data, counting the number of table rows is (part of) the:
  • A first step.
  • B second step.
  • C third step.
  • D fourth step.
Answer: Option A
Q14
If a table has been normalized so that all determinants are candidate keys, then that table is in:
  • A 1NF.
  • B 2NF
  • C 3NF.
  • D BCNF.
Answer: Option D
Q15
Read-only databases are ________ updated.
  • A always
  • B commonly
  • C seldom
  • D never
Answer: Option D
Q16
Needing to assess the validity of assumed referential integrity constraints on foreign keys is a(n) ________ of normalization.
  • A advantage
  • B disadvantage
  • C either an advantage or disadvantage
  • D neither an advantage nor disadvantage
Answer: Option D
Q17
When assessing the table structure of an acquired set of tables with data, determining primary keys is (part of) the:
  • A first step.
  • B second step.
  • C third step.
  • D fourth step.
Answer: Option B
Q18
Normalization ________ data duplication.
  • A eliminates
  • B reduces
  • C increases
  • D maximizes
Answer: Option A
Q19
Each answer below shows example data from a table. Which answer is an example of the inconsistent values problem?
  • A Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
  • B Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
  • C Three rows have the values Brown, NULL, and Blue in the same column.
  • D One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column
Answer: Option C
Q20
A BI reporting system does not ________ .
  • A create meaningful information
  • B deliver information to users on a timely basis
  • C use statistical procedures to predict future events
  • D use disparate data sources
Answer: Option C

📚 More from Database

← All Topics 🎯 Practice ⏱️ Take Test 🔍 Search
Database
Back to Database
Other Subjects
Questions and Answers for Competitive Exams Various Entrance Test