Endava Interview Questions and Answers

Q1. Questions based on skills and some aptitude questions and project explanation
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57 bits of Aptitude, Reasoning, Verbal Ability,Java, Python, DBMS, C, C++ and 3 coding questions
1) Arrays&Math, 2) Strings 3) Sql Query based on Joins and Sub-Query.
Totally 60 bits with a time 1&1/2 hr.

Q1. Tell me about yourself that is not present in the resume.
Ans. 
I am an avid hiker and have climbed several mountains in the past year.
• I enjoy spending time outdoors and challenging myself physically

• I have completed multiple hiking trails, including the Appalachian Trail and Mount Kilimanjaro

• I find solace and inspiration in nature, which helps me stay focused and motivated in my work
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Q2. Questions on your resume and project. why did you choose Java? why do you choose the project while there are many different projects are out there? what frameworks have you used in your project?
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Q3. Questions on Logical Reasoning based on analogy,number series.
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Q4. What is DBMS ? and Differentiate blw R-DBMS and DBMS.
Ans. 
DBMS stands for Database Management System. R-DBMS is a relational database management system which stores data in tables with relationships.
• DBMS is a software system that allows users to define, create, maintain and control access to the database.

• R-DBMS is a type of DBMS that stores data in tables with relationships between the tables.

• R-DBMS uses Structured Query Language (SQL) for accessing and managing the data.

• Exam...read more
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Q5. What are the disadvantages of DBMS?
Ans. 
Disadvantages of DBMS include high cost, complexity, potential for data loss, and security vulnerabilities.
• High cost of implementation and maintenance

• Complexity in managing and scaling the database

• Potential for data loss due to system failures or human errors

• Security vulnerabilities that can lead to data breaches

• Dependency on a single vendor for support and updates
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Q6. What are the features of Java?
Ans. 
Java is a versatile programming language known for its platform independence, object-oriented features, and robust standard library.
• Platform independence - Java programs can run on any platform that has a Java Virtual Machine (JVM)

• Object-oriented - Java supports the principles of encapsulation, inheritance, and polymorphism

• Robust standard library - Java provides a rich set of APIs for tasks like networking, I/O, and da...read more
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Q7. What is meant by polymorphism? What are the different types of polymorphism and explain them with an example?
Ans. 
Polymorphism in Java refers to the ability of a single method to perform different actions based on the object it is acting upon.
• Types of polymorphism: compile-time polymorphism (method overloading) and runtime polymorphism (method overriding)

• Method overloading: multiple methods in the same class with the same name but different parameters

• Example of method overloading: public void display(int a) and public void display...read more
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Q8. Are you trained in technologies like AI and ML?
Ans. 
No, my training has primarily focused on Java development.
• My training has primarily focused on Java development, with a strong foundation in core Java concepts and frameworks.

• While I have a basic understanding of AI and ML concepts, I do not have formal training or experience in these technologies.

• I am open to learning and expanding my skills in AI and ML in the future.
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Q9. What is No-Sql? In what cases does No-Sql will be used?
Ans. 
No-SQL is a type of database that does not use the traditional tabular structure of relational databases.
• No-SQL databases are used when dealing with large amounts of unstructured or semi-structured data.

• They are suitable for real-time applications, big data, and cloud-based systems.

• Examples of No-SQL databases include MongoDB, Cassandra, and Redis.
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Q10. What do you aspire to in life?
Ans. 
I aspire to continuously learn and grow, make a positive impact on others, and achieve personal fulfillment.
• Continuous learning and growth in my career and personal life

• Making a positive impact on others through my work and actions

• Achieving personal fulfillment and happiness in all aspects of life
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Q1. Tell me about yourself that is not present in the resume.
Ans. 
I am an avid hiker and have climbed several mountains in the past year.
• I enjoy spending time outdoors and challenging myself physically

• I have completed multiple hiking trails, including the Appalachian Trail and Mount Kilimanjaro

• I find peace and inspiration in nature, which helps me stay focused and motivated in my work
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Q2. Questions on Resume and Project. Why did you choose this project and How can you say that this project will improve your programming ability?
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Q3. Predict a Sql Join Query(Inner Join) mcq bit based on the written test , Explain the query and what is right option.
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Q4. A puzzle based on Water Jug Problem which should result 4L water by using 5 & 3 L jugs.
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Q5. Why did you used JSP pages in your project.
Ans. 
JSP pages were used in the project for dynamic content generation and seamless integration with Java code.
• JSP allows for easy integration of Java code for dynamic content generation.

• JSP pages can be easily maintained and updated without changing the Java code.

• JSP pages provide a way to separate presentation logic from business logic.

• JSP pages can be used to create reusable components for the project.

• JSP pages offer a f...read more
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Q6. What are the OOPS concept and explain them with an example.
Ans. 
OOPS concepts are fundamental principles in object-oriented programming.
• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class Car with properties like make, model, and methods like start(), stop().

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: Class Truck inheriting from class Vehicle.

• Polymorphism: Ability to present the same in...read more
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Q7. Which version of Java are you familiar with?
Ans. 
I am familiar with Java 8 and Java 11.
• Familiar with features like lambda expressions, streams, and default methods in Java 8.

• Experience with features like local-variable type inference, HTTP/2 client, and new string methods in Java 11.
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Q8. What is an HashMap and where it is used?
Ans. 
HashMap is a data structure in Java that stores key-value pairs and allows fast retrieval of values based on keys.
• HashMap implements the Map interface and uses hashing to store elements.

• It allows one null key and multiple null values.

• Example: HashMap<String, Integer> map = new HashMap<>(); map.put("apple", 5); int value = map.get("apple");
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Q1. Tell your experience
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2 questions on dsa
1.Arrays find maximum sum
2.string anagram