Selenium, Java, and JDBC Fundamentals

What is Selenium WebDriver used for?

• Selenium WebDriver is used for automating web application testing.

• Selenium WebDriver is used for managing database connections.

• Selenium WebDriver is used for creating mobile applications.

• Selenium WebDriver is used for designing graphic user interfaces.

Name one advantage of using Selenium WebDriver.

• Limited support for mobile testing.

• Requires extensive coding knowledge.

• Only works with Chrome browser.

• Cross-browser testing capability.

What is the purpose of the 'findElement' method in Selenium?

• To submit a form on the webpage.

• To locate a single web element on a webpage.

• To find multiple web elements at once.

• To delete a web element from the webpage.

List three types of locators available in Selenium.

• CSS Selector

• Tag Name

• ID, Name, XPath

• Class Name

What is the difference between 'id' and 'name' locators?

• The 'id' locator is unique to a single element, while the 'name' locator can select multiple elements with the same name.

• The 'id' locator is always visible, while the 'name' locator is hidden from the user.

• The 'id' locator is used for styling, while the 'name' locator is used for scripting.

• The 'id' locator can select multiple elements, while the 'name' locator is unique to a single element.

How do you handle exceptions in Java?

• Use if-else statements to handle exceptions in Java.

• Use try-catch blocks to handle exceptions in Java.

• Throw exceptions without catching them.

• Ignore exceptions and continue execution.

What is a checked exception in Java?

• A checked exception is an error that cannot be handled by the program.

• A checked exception in Java is an exception that must be either caught or declared in the method signature.

• A checked exception is an exception that occurs only at runtime.

• A checked exception is an exception that is ignored by the compiler.

Explain the purpose of the 'try-catch' block in Java.

• To create new classes in Java.

• To define variables in Java.

• To optimize code performance in Java.

• The purpose of the 'try-catch' block in Java is to handle exceptions and prevent program crashes.

What is JDBC and what is its primary purpose?

• JDBC is an API for connecting Java applications to databases, primarily used for executing SQL queries and managing database connections.

• JDBC is a tool for designing user interfaces in Java.

• JDBC is a programming language for database management.

• JDBC is a web framework for building Java applications.

How do you establish a connection to a database using JDBC?

• Use ConnectionFactory.createConnection(url) without a driver.

• Use DriverManager.getConnection(url, username, password) after loading the JDBC driver.

• Invoke JDBC.openConnection(url, username, password) without loading the driver.

• Call Database.connect(url, username) directly.