Exam (elaborations)
DAD 220 Module 5 Quiz Questions And Answers Latest Update
- Course
- DAD 220
- Institution
- Southern New Hampshire University
DAD 220 Module 5 Quiz Questions And Answers Latest Update
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Solution 2024/2025Pepper
DAD 220 Module 5 Quiz Questions And
Answers Latest Update
You are playing an online quiz game. In it, the "answers" to the bonus
question on normal forms are listed as:
•"All non-key columns must depend on the whole primary key."
•"A table with a simple primary key is automatically in this form."
•"This form doesn't eliminate all redundancies."
Which normal form do these answers apply? ANS✔✔ second normal form
Denormalization intentionally introduces redundancy by merging tables. As
a result, this improves query performance.
Which types of normal form tables does it result in? Select all that apply.
ANS✔✔ First normal form
Second normal form
Which of these is true when a table is in third normal form? ANS✔✔ All non-
key columns depend on the whole primary key and on no other columns.
You're analyzing data for MLB game stats for a sports website.
You need to extract a list of the highest average attendance for each league
and each division in it, then order it by league and then division.
Which of the following should be your query? ANS✔✔ SELECT League,
Division, MAX (Average) FROM Attendance GROUP by League, Division
ORDER by League, Division
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