Vibrant Sdet Engineer Interview Questions and Answers

Q1. Explain different waits in selenium
Ans. 
Different waits in Selenium include implicit wait, explicit wait, and fluent wait.
• Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.

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

• Fluent wait: Waits for a condition to be true with a specified frequency of checking.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS)
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Q2. What are SQL joins explain them
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SQL joins are used to combine rows from two or more tables based on a related column between them.
• SQL joins are used to retrieve data from multiple tables based on a related column.

• Types of SQL joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RIGH...read more
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Intermediate level of apptitude mixed with arithmatic apptitude only

String and array questions for all that will be enough

Q1. OOPs , and resume related and concept based and bit of scenario based
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Q1. Selenium framework, exceptions, how to right click double click,
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Q2. Rest assured, serialization , how to send POST request
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Q1. 2 sum problem in different approach
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Q2. Maximum sub array sum
Ans. 
Find the maximum sum of a contiguous subarray within an array of integers.
• Use Kadane's algorithm to find the maximum subarray sum efficiently.

• Initialize two variables - maxEndingHere and maxSoFar.

• Iterate through the array and update the variables accordingly.

• Example: Input [1, -2, 3, 4, -1, 2, 1, -5, 4], Output: 10 (subarray [3, 4, -1, 2, 1])
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Q1. Design LLD for factory pattern
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Factory pattern is a creational design pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.
• Create an interface or abstract class to define the factory method

• Create concrete classes that implement the interface or extend the abstract class

• Factory class should have a method that returns an object of the interface type based on in
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Q1. Tell me about yourself?
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Q2. Salary expectations?
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Q1. Based on resume questions.
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Q2. Difference between xpath and css selectors
Ans. 
XPath is a language for selecting nodes in an XML document, while CSS selectors are used to select HTML elements.
• XPath is more powerful and flexible than CSS selectors

• CSS selectors are faster and easier to write than XPath

• XPath can traverse both upwards and downwards in the document tree, while CSS selectors can only traverse downwards

• XPath can select elements based on their attributes, text content, and more, while CS...read more
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Java code to print the duplicate numbers in an array without using Set or Map

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

Medium level coding question on leetcode and codechef are good to prepare to clear the test.

Q1. You need to have good knowledge on all the core subjects from CSE Department and coding
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Q2. Database questions, java opps cocncepts, coding question based on arrays.
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