Zscaler Softech Software Engineer Intern Interview Questions and Answers

Selenium 4 has new features like improved W3C support, relative locators, and better error handling.

• Improved W3C support for better browser compatibility

• Relative locators for easier element location

• Better error handling with detailed error messages

• New APIs for easier browser automation

• Support for Chromium-based Edge browser

• Integration with DevTools Protocol for better debugging

Encapsulation is the process of hiding implementation details and exposing only necessary information.

• Encapsulation is achieved through access modifiers like public, private, and protected.

• It helps in achieving data abstraction and information hiding.

• Encapsulation provides better control over the data and prevents unauthorized access.

• Example: A class with private variables and public methods to access them.

There are three types of waits in Selenium: Implicit Wait, Explicit Wait, and Fluent Wait.

• Implicit Wait: Waits for a certain amount of time before throwing an exception if the element is not found.

• Explicit Wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent Wait: Waits for a certain condition to occur with a defined frequency before proceeding further in the code.

Implementing random function without in-built random()

• Use current time as seed value

• Generate a sequence of numbers using a mathematical formula

• Use external sources of randomness like atmospheric noise

• Implement a linear congruential generator

• Use a hash function to generate pseudo-random numbers