Quinbay Sdet Interview Questions and Answers

SQL, Python - basics of SQL and how to populate values in a list using functions

Q1. Explain framework used for selenium
Ans. 
Selenium is an open-source automation testing framework used for web applications.
• Selenium supports multiple programming languages like Java, Python, C#, etc.

• It consists of Selenium WebDriver, Selenium IDE, and Selenium Grid.

• Selenium WebDriver is used for automating web applications by interacting with the web elements.

• Selenium IDE is a record and playback tool for creating test cases.

• Selenium Grid is used for parallel...read more
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Q2. Checked and unchecked exceptions.
Ans. 
Checked exceptions are checked at compile time, while unchecked exceptions are not.
• Checked exceptions must be either caught or declared in the method signature using 'throws' keyword.

• Unchecked exceptions do not need to be explicitly handled.

• Examples of checked exceptions include IOException, ClassNotFoundException.

• Examples of unchecked exceptions include NullPointerException, ArrayIndexOutOfBoundsException.
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Q3. Exceptions in selenium
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Exceptions in Selenium are errors that occur during test execution, such as ElementNotVisibleException or TimeoutException.
• Selenium WebDriver throws exceptions when it encounters errors during test execution.

• Common exceptions include NoSuchElementException, ElementNotVisibleException, TimeoutException, StaleElementReferenceException, and WebDriverException.

• Handling exceptions in Selenium can be done using try-catch blo...read more
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Q4. Waits in selenium
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Waits in Selenium are used to synchronize tests with the browser's state.
• Waits help to handle synchronization issues in Selenium tests

• There are two types of waits in Selenium - Implicit Wait and Explicit Wait

• Implicit Wait sets a default waiting time for the entire test script

• Explicit Wait allows the test to wait for a certain condition to be met before proceeding
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Q5. Frames handling
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Q1. Project related questions only and basic question
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Q1. Ctc discussion, expected ctc and doj
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Q1. Basic question on corenjava
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Q2. Basic question on selenium
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Q1. Palindrome with dynamic programming
Ans. 
Using dynamic programming to check if a string is a palindrome.
• Create a 2D array to store the results of subproblems

• Iterate through the string and fill the array based on whether substrings are palindromes

• Check the array to determine if the entire string is a palindrome
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Q1. Function declaration reverse word in a string copy array without direct assignment equality operator vs strict equal post vs put success code of patch what is 403 status code
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Q1. Reverse String without using loop
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Reverse string without using loop
• Use recursion to reverse the string

• Base case: if string length is 0 or 1, return the string

• Recursive case: return the last character + reverse(rest of the string)
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Q2. Parenthesis Balancing using stack
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Implement a parenthesis balancing algorithm using a stack
• Use a stack to keep track of opening parentheses

• When encountering a closing parenthesis, pop from stack and check if it matches the closing parenthesis

• If stack is empty or mismatched parentheses, return false

• If all parentheses are balanced, return true
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Q1. Oops concepts, Selenium, core java
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