ValueLabs Senior Automation Test Engineer Interview Questions and Answers

Q1. Difference between hashset and hashcode
Ans. 
HashSet is a collection that does not allow duplicate elements, while hashCode is a method used to generate a unique integer value for an object.
• HashSet is a collection class in Java that does not allow duplicate elements.

• HashCode is a method in Java that returns a unique integer value for an object.

• HashSet uses hashCode method to determine uniqueness of elements.

• Example: HashSet set = new HashSet<>(); set.add("apple")...read more
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Q2. API error code 403
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Reverse a string, find the repetition of characters, Fibonacci series, selenium web elements handling. Organizational workflows.

Selenium web automation for a web demo page.

Q1. Multiple questions on Linux , how to get a process id, how to kill a process, what is difference between process and thread, what is the difference between concurrent and parallel process etc.
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Q2. Few scenario based questions around linux systems, how will you trouble shoot if client not able to connect to servers running an appilcation.
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Q3. Testing related questions, what is diff between Performance and Scale testing, where to use which one
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Q1. Coding questions basics, related to file handling, parsing files, etc.
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Q2. Linux based questions - scenarios where multiple clients trying to write to same file, how till integrity of file be maintained and how will server manager the data does not get corrupted.
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Q1. What is diff between implicit and explicit wait
Ans. 
Implicit wait is set globally for all elements, while explicit wait is applied only to specific elements.
• Implicit wait is set once at the beginning of the test script

• Explicit wait is used for specific elements with different wait times

• Implicit wait is defined for the entire duration of the WebDriver object

• Explicit wait is defined for a specific condition or element to wait for
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Q2. About past exp and current project
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30 minutes duration it was good expereience

It is mix of aptitude and coding

Q1. They will just ask you about questions on projects and some basic coding questions
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Q2. Reverse a string
Ans. 
Reverse a string
• Use the built-in reverse() function to reverse the string

• Convert the string into an array of characters, reverse the array, and then join the characters back into a string

• Iterate through the string from the last character to the first and append each character to a new string
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Q3. Technologies used in my project
Ans. 
The technologies used in my project include Selenium WebDriver, Java, TestNG, Maven, and Jenkins.
• Selenium WebDriver for automating web browsers

• Java for writing test scripts

• TestNG for test execution and reporting

• Maven for project management and dependency management

• Jenkins for continuous integration and test execution
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Q1. Basic info about me
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