Practice Relational Databases (rdbms) (1.2.1) - Advanced Back-End Development

Practise this section

10 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is an RDBMS?
Show hintHide hint
Think about how data can be organized.
Question 2.
What does normalization help to prevent in databases?
Show hintHide hint
Consider the benefits of organization.
3Question 3.
What does RDBMS stand for?
- Real Database Management System
- Relational Database Management System
- Random Database Management System
Show hintHide hint
Focus on the type of relationship data.
4Question 4.
True or False: Normalization is necessary only for small databases.
- True
- False
Show hintHide hint
Think about the role of organization in data management.
Question 5.
Design a normalized database schema for a library management system. Define at least three main tables and their relationships.
Show hintHide hint
Think about how entities interact in the library.
Question 6.
Suppose you have an SQL query that runs slowly. Explain how you would approach optimizing it using indexing.
Show hintHide hint
Consider the difference between read and write actions.

6 more questions in this section. Enroll free to practise them all.