Zensar Technologies Interview Questions and Answers

Q1. Tell me about yourself
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Q2. Explain Spring Boot flow in your project
Ans. 
Spring Boot simplifies the development of Java applications by providing a set of tools and conventions.
• Spring Boot eliminates the need for manual configuration by providing defaults and auto-configuration.

• It includes embedded servers like Tomcat, Jetty, or Undertow for easy deployment.

• Spring Boot starters help in quickly setting up dependencies and configurations.

• Annotations like @SpringBootApplication and @RestContro...read more
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Q3. Explain Spring Security flow in your project
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Q4. What is @SpringBootApplication
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Annotation used to mark a class as a Spring Boot application
• Main annotation in Spring Boot to indicate the starting point of the application

• Combines @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations

• Used to enable the auto-configuration feature in Spring Boot

• Reduces the need for XML configuration in Spring applications
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Q5. Coding Question - Find frequency of all the all the elements in Given String
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Q1. Introduce yourself
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Q2. What is Success according to you
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Success is achieving personal goals, feeling fulfilled, and making a positive impact on others.
• Success is subjective and can vary from person to person.

• It is not just about achieving wealth or fame, but also about personal growth and happiness.

• Success can be measured by the impact one has on others and the legacy they leave behind.

• Examples of success include reaching career milestones, maintaining healthy relationships...read more
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Q3. What are your strengths and weekness
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My strengths include strong problem-solving skills and attention to detail. My weakness is sometimes being too critical of my own work.
• Strength: Strong problem-solving skills - I enjoy tackling complex problems and finding efficient solutions.

• Strength: Attention to detail - I take pride in producing high-quality work and ensuring accuracy.

• Weakness: Being too critical of my own work - I strive for perfection and sometim...read more
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Q4. Tell me about your Family Background
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I come from a close-knit family with a strong emphasis on education and hard work.
• Family is supportive and values education

• Parents are both professionals

• Have a sibling who is also in the tech industry
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Q5. How do you solve any problem
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Q1. What is the difference between volatile and atomic variables?
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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?
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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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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 ?
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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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Q1. Implement Microservice for inserting record
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Implement a microservice to handle record insertion using RESTful API principles.
• Choose a programming language (e.g., Node.js, Python, Java) for the microservice.

• Use a framework (e.g., Express for Node.js, Flask for Python) to simplify API creation.

• Define a RESTful endpoint (e.g., POST /records) for inserting records.

• Implement data validation to ensure the integrity of incoming data.

• Connect to a database (e.g., MongoDB...read more
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Q1. Solid Principal
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Q2. OOP concept in C#
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OOP concept in C# involves creating classes, objects, inheritance, polymorphism, and encapsulation.
• Classes are blueprints for objects, containing properties and methods.

• Objects are instances of classes, representing real-world entities.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism enables objects to be treated as instances of their parent class.

• Encapsulation restricts acce...read more
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Q1. Different types of design principles based questions
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Q2. Microservices questions
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