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Which two statements are true regarding a Spring Boot-based Spring MVC application? (Choose two.)
Spring Boot provides a convenient way to create Spring MVC applications with minimal configuration. By default, it uses Tomcat as the embedded servlet container, but it also supports other containers such as Jetty and Undertow. To use a different container, we just need to exclude the spring-boot-starter-tomcat dependency and include the corresponding starter for the desired container. For example, to use Undertow, we can add the following dependencies in our pom.xml:
<dependency> <groupId>org.springframework.boot</groupId>
Spring Boot will find and load property files in which of the following? (Choose the best answer.)
Which three types of objects can be returned form a JdbcTemplate query? (Choose three.)
The JdbcTemplate class provides various methods to execute queries and manipulate the query results. Depending on the query and the expected result type, we can choose from the following three types of objects that can be returned from a JdbcTemplate query:
A . Generic Maps
List<Map<String, Object>> results = jdbcTemplate.queryForList(''SELECT * FROM EMPLOYEE''); for (Map<String, Object> row : results) { System.out.println(row.get(''NAME'') + ' ' + row.get(''SALARY'')); }
B . Simple types (int, long, String, etc)
int count = jdbcTemplate.queryForObject(''SELECT COUNT(*) FROM EMPLOYEE'', Integer.class); System.out.println('Number of employees: ' + count);
D . User defined types
public class Employee { private String name; private int salary; // getters and setters }
public class EmployeeRowMapper implements RowMapper<Employee> { @Override public Employee mapRow(ResultSet rs, int rowNum) throws SQLException { Employee employee = new Employee(); employee.setName(rs.getString(''NAME'')); employee.setSalary(rs.getInt(''SALARY'')); return employee; } }
List<Employee> employees = jdbcTemplate.query(''SELECT * FROM EMPLOYEE'', new EmployeeRowMapper()); for (Employee employee : employees) { System.out.println(employee.getName() + ' ' + employee.getSalary()); }
Which two options are valid optional attributes for Spring's @Transactional annotation? (Choose two.)
https://www.baeldung.com/transaction-configuration-with-jpa-and-spring
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/transaction/annotation/Transactional.html
Which two statements are true regarding a Spring Boot "fat" JAR? (Choose two.)