Bharti Airtel Senior Sdet Engineer Interview Questions and Answers

Q1. OOPs Concepts, like Abstraction, Polymorphism, Encapsulation etc.
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Q2. Write java program to reverse a string.
Ans. 
Java program to reverse a string
• Create a char array from the input string

• Use two pointers to swap characters from start and end of the array

• Convert the char array back to a string and return
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Q3. API error codes meanings.
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API error codes are numerical or alphanumeric codes that indicate the type of error that occurred during an API request.
• API error codes help developers identify and troubleshoot issues with their API requests.

• Common API error codes include 400 Bad Request, 401 Unauthorized, 404 Not Found, 500 Internal Server Error.

• Each API error code has a specific meaning and can provide valuable information for debugging.
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Q4. Exceptions encountered during Automation.
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Exceptions encountered during automation testing can include element not found, timeout, invalid input, etc.
• ElementNotVisibleException: When an element is present in the DOM but not visible on the page

• TimeoutException: When a command takes longer than the timeout specified

• NoSuchElementException: When an element could not be found in the DOM

• StaleElementReferenceException: When an element is no longer attached to the DOM

• ...read more
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App is taking long to process a functionality what could be the possible reasons?

1 hour test of moderate to difficult level questions

Q1. They asked about projects i made during my academic years and asked som questions from DSA
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Q2. Any advise you want to give our company?
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