21. What is the purpose of the JDBC `Batch` processing feature? A. To manage JavaBean lifecycle B. To create JavaBean properties C. To execute multiple SQL statements as a batch D. To establish database connections Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
22. Which SQL statement is used to insert data into a database table in JDBC? A. `DELETE FROM` B. `INSERT INTO` C. `SELECT` D. `DELETE FROM` Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
23. In JDBC, what is the primary purpose of the `Driver` interface? A. To create JavaBeans B. To execute SQL queries C. To define the contract for database drivers D. To define JavaBean properties Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
24. Which of the following is NOT a valid method to execute an SQL query in JDBC? A. `executeUpdate()` B. `execute()` C. `executeBatch()` D. `executeQuery()` Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
25. In JDBC, what is the purpose of the `java.sql.SQLException` class? A. To handle database-related exceptions B. To manage JavaBean properties C. To execute SQL queries D. To create JavaBeans Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
26. What is the primary role of the JDBC `ConnectionPoolDataSource` interface? A. To execute SQL queries B. To manage JavaBean events C. To define JavaBean properties D. To provide a connection pool for JDBC Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
27. Which of the following is a valid way to handle exceptions in JDBC? A. Using JavaBeans to handle exceptions B. Using `throws` statements in SQL queries C. Using try-catch blocks to catch `SQLException` D. Using `break` statements in SQL queries Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
28. What is the primary purpose of the JDBC `RowSet` interface? A. To manage JavaBean lifecycle B. To represent a set of rows from a database C. To execute SQL queries D. To manage JavaBean lifecycle Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
29. In JDBC, what is the purpose of the `java.sql.SQLWarning` class? A. To create JavaBeans B. To execute SQL queries C. To provide warnings about database operations D. To define JavaBean properties Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
30. Which of the following is a valid method to retrieve data from a JDBC `ResultSet`? A. `setInt(String columnName)` B. `updateRow(int rowIndex)` C. `executeQuery()` D. `getString(int columnIndex)` Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
