Practice Jdbc Best Practices (3.10) - Java Database Connectivity (JDBC)

Practice: JDBC Best Practices

Lesson 3.10Java Database Connectivity (JDBC)

Practise this section

9 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
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the purpose of closing JDBC resources?
Show hintHide hint
Think about resource management.
Question 2.
What does try-with-resources do in Java?
Show hintHide hint
It simplifies resource management.
3Question 3.
What does the try-with-resources statement do?
- A. It allows multiple resource allocations
- B. It automatically closes resources
- C. It enhances query performance
Show hintHide hint
Consider what happens to resources after leaving a block.
4Question 4.
True or False: PreparedStatement can help prevent SQL injection.
- True
- False
Show hintHide hint
Think about the security features of PreparedStatement.
Question 5.
You are developing a Java application that interfaces with a sales database. Describe how you would implement connection pooling and PreparedStatement to enhance performance and security. What potential issues could arise if you do not follow these best practices?
Show hintHide hint
Consider both security and performance aspects.
Question 6.
You have an application that currently uses hardcoded SQL queries. Create a refactored version of one of these queries using PreparedStatement, and explain the benefits of this change.
Show hintHide hint
Think about how the new change will affect code readability and safety.

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