IBM Softwaretest Engineer Interview Questions, Process, and Tips

Find the dominations

Q1. Implement min stack
Ans. 
Implement a stack that supports finding the minimum element in constant time.
• Create a stack to store elements and another stack to store minimum values.

• When pushing an element, check if it is smaller than the current minimum and push it to the min stack if so.

• When popping an element, check if it is the current minimum and pop from the min stack if so.

• To get the minimum element, simply return the top element of the min
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Q2. Find the lca of a given nodes
Ans. 
The lowest common ancestor (LCA) of two nodes in a tree is the shared ancestor that is located farthest from the root.
• Traverse the tree from the root to find the paths from the root to each node.

• Compare the paths to find the last common node between the two paths, which is the LCA.

• If one node is an ancestor of the other, return that node as the LCA.
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Coding test and self introduction

Q1. What is Selenium?
Ans. 
Selenium is a popular open-source tool used for automating web browsers.
• Selenium supports multiple programming languages like Java, Python, and C#.

• It can automate web browsers across different platforms like Windows, Mac, and Linux.

• Selenium can be used for functional testing, regression testing, and browser compatibility testing.

• It allows users to write test scripts in a variety of formats such as HTML, Java, C#, and P
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Q2. What is cucumber framework?
Ans. 
Cucumber is a testing framework that supports Behavior Driven Development (BDD) by allowing tests to be written in plain text.
• Cucumber uses Gherkin syntax to define test cases in a human-readable format

• It allows collaboration between technical and non-technical team members

• Cucumber tests are written in feature files with scenarios and steps

• It integrates with various programming languages like Java, Ruby, etc.
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Hacker rank problems

Q1. Design patterns
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Q2. Data structures and algorithms
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Q1. Core JAVA in depth including Algorithms
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Q1. Design patterns, Java basic in depth
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Q1. Why you want to Join
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