Bharti Airtel Sdet Automation Test Engineer Interview Questions, Process, and Tips

1. Prepare java string questions

Have to write code snippet for serialization and deserialization in java

Q1. Code to explain Indian number plate system
Ans. 
Indian number plate system consists of a unique combination of letters and numbers to identify vehicles.
• Indian number plates consist of a combination of letters and numbers

• The first two letters indicate the state where the vehicle is registered

• Followed by a unique number assigned to the vehicle

• Some number plates may also include additional information like the vehicle class or fuel type
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Q2. To check if a string is palindrome with recusrion
Ans. 
Check if a string is palindrome using recursion
• Create a recursive function that compares the first and last characters of the string

• If they match, call the function with the substring excluding the first and last characters

• Continue this process until the string length is 0 or 1, then return true if all characters matched

• Example: 'racecar' is a palindrome, 'hello' is not
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Q3. Oops concepts in java
Ans. 
Oops concepts in Java refer to Object-Oriented Programming principles like Inheritance, Polymorphism, Encapsulation, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability of an object to take on many forms.

• Encapsulation: Bundling of data with the methods that operate on that data.

• Abstraction: Hiding the implementation details and showing only the necessa
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Q1. Separate 1's and 0's in an array with minimal complexity
Ans. 
Use two pointers approach to separate 1's and 0's in an array of strings with minimal complexity.
• Initialize two pointers, one at the beginning and one at the end of the array.

• Move the left pointer until it encounters a '0' and the right pointer until it encounters a '1'.

• Swap the elements at the left and right pointers, then move the pointers towards each other until they meet in the middle.
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Q2. How to automate filters in web page
Ans. 
Automating filters in a web page involves identifying filter elements, selecting filter criteria, and verifying filtered results.
• Identify filter elements on the web page such as dropdowns, checkboxes, or input fields

• Use automation tools like Selenium to interact with filter elements and select desired criteria

• Trigger filter action (e.g. clicking 'Apply' button) and wait for the page to refresh with filtered results

• Veri...read more
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