Zensar Technologies Interview Questions and Answers

Q1. What is your experience with JavaScript executors, and in what scenarios have you used them?
Ans. 
I have utilized JavaScript executors for dynamic web interactions and advanced testing scenarios in automation frameworks.
• Used JavaScript executors to manipulate DOM elements directly when standard Selenium methods were insufficient.

• Implemented JavaScript to scroll to specific elements on a page for better visibility during tests.

• Executed custom JavaScript functions to validate complex UI behaviors that couldn't be tes...read more
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Q2. What is your experience with Continuous Integration and Continuous Deployment (CI/CD)?
Ans. 
I have extensive experience implementing CI/CD pipelines to automate software delivery and improve deployment efficiency.
• Implemented CI/CD pipelines using Jenkins for automated testing and deployment.

• Utilized Docker for containerization, ensuring consistent environments across development and production.

• Integrated version control systems like Git with CI tools to trigger builds on code commits.

• Set up automated testing ...read more
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Q3. How would you manage the automation of 100 test cases provided by a customer?
Ans. 
I would prioritize, design, and implement automation for the 100 test cases systematically to ensure efficiency and coverage.
• Assess the test cases to identify high-priority ones based on risk and frequency of use.

• Group similar test cases to create reusable automation scripts, reducing redundancy.

• Select appropriate automation tools (e.g., Selenium, TestNG) based on the application type.

• Develop a clear framework for the ...read more
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Q4. What is the reason for only executing tests on one window when some windows are idle?
Ans. 
Executing tests on one window optimizes resource usage and reduces complexity in automation processes.
• Resource Management: Running tests on one window conserves CPU and memory, preventing system overload.

• Simplified Debugging: Focusing on one window makes it easier to identify and fix issues without distractions.

• Sequential Testing: Some tests depend on the results of others; executing them in sequence ensures accuracy.

• R...read more
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Q5. What are some effective strategies for handling merge conflicts?
Ans. 
Effective strategies for handling merge conflicts include communication, understanding changes, and using tools for resolution.
• Communicate with team members to understand the context of changes made.

• Use version control tools like Git to visualize differences and resolve conflicts.

• Prioritize changes based on project requirements and team consensus.

• Test the merged code thoroughly to ensure functionality after resolving c...read more
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Q1. What is the difference between volatile and atomic variables?
Ans. 
Volatile variables are used to indicate that a variable's value can be changed unexpectedly, while atomic variables ensure that operations on the variable are executed as a single, indivisible unit.
• Volatile variables are used when a variable's value can be changed by multiple threads or external factors, and the compiler should not optimize access to that variable.

• Atomic variables ensure that operations on the variable...read more
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Q2. How can caching be implemented?
Ans. 
Caching can be implemented by storing frequently accessed data in a temporary storage area to improve performance.
• Use caching libraries like Redis or Memcached to store data in memory for quick access

• Implement caching at different levels such as application-level caching, database query caching, and HTTP caching

• Set expiration times for cached data to ensure freshness and prevent stale data

• Use caching strategies like la...read more
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The coding test consisted of easy to medium difficulty questions: 1. Find the Kth largest element. 2. Print an array based on the sequence specified in a different array. Additionally, there was a classical stack problem involving valid parentheses.

Q1. Build web app, inventory management
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Q1. Question on Spark and python and sql
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Q1. Questions on sql and python and spark
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Q1. General HR questions
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MCQ'S on Core Java, Java8, SQL, Microservices and Coding question in Java.

Q1. Java 8 concepts, Multi threading, Collections, Microservices, SOLID PRINCIPLES, Design Patterns and Java 8 coding and SQL queries
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Q2. Take a list and find the list containing prime numbers in list, Find the highest salary of employees using streams and also basic SQL queries on joins
Ans. 
Use Java streams to filter prime numbers from a list, find highest employee salary, and demonstrate basic SQL joins.
• Use Java streams to filter prime numbers from the list

• Use streams to find the highest salary of employees

• Demonstrate basic SQL queries for joins
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Q1. How you differentiate authorization and authentication ?
Ans. 
Authorization determines what a user can access, while authentication verifies the user's identity.
• Authorization controls access to resources based on user permissions

• Authentication verifies the user's identity through credentials like passwords or biometrics

• Authorization comes after authentication in the access control process

• Example: After logging into a system (authentication), a user is authorized to view certain f...read more
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Q2. What is SSO ?
Ans. 
SSO stands for Single Sign-On, a method of access control that allows a user to log in with a single ID and password to access multiple applications.
• SSO eliminates the need for users to remember multiple passwords for different applications.

• It improves user experience by reducing the number of times a user has to log in.

• SSO can be implemented using technologies like SAML, OAuth, or OpenID Connect.

• Example: A user logs i...read more
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