Capgemini Senior Software Engineer Interview Questions, Process, and Tips

Through test and qualified means sent to round 2

Q1. About yourself and technical skills
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Q2. About studies and strenghts
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Q1. If you're going as a fresher they'll ask simple questions like resume based questions, related to Java OOPs concept and some behavioral questions
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Q1. Tell me about yourself
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Round duration - 60 Minutes
Round difficulty - Medium

This round had 1 simple question related to Basic Programming and Maths and then I was asked some concepts revolving around Java , Spring Boot and OOPS.

Q1. 
Pascal's Triangle Construction
You are provided with an integer 'N'. Your task is to generate a 2-D list representing Pascal’s triangle up to the 'N'th row.
Pascal's triangle is a triangular array where ...read more
Ans. 
Generate Pascal's triangle up to the Nth row using a 2-D list.
• Iterate through each row up to N, starting with [1] as the first row.

• Calculate each element in a row by summing the two elements directly above from the previous row.

• Append each row to the 2-D list until reaching the Nth row.

• Example: For N = 4, the output would be [ [1], [1, 1], [1, 2, 1], [1, 3, 3, 1] ]
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Q2. What is meant by an interface in Object-Oriented Programming?
Ans. 
An interface in OOP defines a contract for classes to implement, specifying methods that must be included.
• An interface contains method signatures but no implementation details.

• Classes can implement multiple interfaces in Java.

• Interfaces allow for polymorphism and loose coupling in software design.
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Q3. What is the difference between an abstract class and an interface in OOP?
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to provide a common base for related classes, while interfaces define a contract for classes to imp...read more
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Q4. What is the starter dependency of the Spring Boot module?
Ans. 
The starter dependency of the Spring Boot module is spring-boot-starter-parent.
• The starter dependency of Spring Boot provides a set of default configurations and dependencies to kickstart a Spring Boot project.

• It includes commonly used dependencies like spring-boot-starter-web, spring-boot-starter-data-jpa, etc.

• The spring-boot-starter-parent also manages the versions of all dependencies to ensure compatibility.
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Q5. What does the @SpringBootApplication annotation do internally?
Ans. 
The @SpringBootApplication annotation is used to mark the main class of a Spring Boot application.
• It is a combination of @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations.

• It tells Spring Boot to start adding beans based on classpath settings, other beans, and various property settings.

• It also implicitly provides a base package for component scanning.

• Example: @SpringBootApplication

• Example: @Spring...read more
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Q6. Can we override or replace the embedded Tomcat server in Spring Boot?
Ans. 
Yes, we can override or replace the embedded Tomcat server in Spring Boot.
• Spring Boot allows for customization of embedded servers through configuration properties.

• You can replace Tomcat with other embedded servers like Jetty or Undertow.

• Example: To use Jetty instead of Tomcat, exclude Tomcat dependencies and include Jetty dependencies in your pom.xml file.
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Round duration - 60 Minutes
Round difficulty - Medium

This round focused more on concepts from DBMS , OOPS and Selenium. The interviewer was more aligned towards the fundamentals and asked the core concepts rather than some advanced questions.

Q1. What is the difference between a Clustered Index and a Non-Clustered Index?
Ans. 
Clustered Index physically reorders the data in the table, while Non-Clustered Index creates a separate structure.
• Clustered Index determines the physical order of data rows in a table.

• Non-Clustered Index creates a separate structure that points back to the original table.

• Clustered Index is faster for retrieval of data, while Non-Clustered Index is faster for retrieval of specific rows.

• Example: Primary key in a table is...read more
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Q2. What is the difference between the DELETE and TRUNCATE commands in a DBMS?
Ans. 
DELETE removes specific rows from a table, while TRUNCATE removes all rows and resets auto-increment values.
• DELETE is a DML command, while TRUNCATE is a DDL command.

• DELETE can be rolled back, while TRUNCATE cannot be rolled back.

• DELETE triggers ON DELETE triggers, while TRUNCATE does not trigger any triggers.

• DELETE is slower as it logs individual row deletions, while TRUNCATE is faster as it logs the deallocation of da...read more
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Q3. Explain the difference between findElement() and findElements() in Selenium.
Ans. 
findElement() returns the first matching element on the web page, while findElements() returns a list of all matching elements.
• findElement() returns a single WebElement matching the locator provided, throwing NoSuchElementException if no element is found.

• findElements() returns a list of WebElements matching the locator provided, an empty list if no elements are found.

• Example: WebElement element = driver.findElement(By....read more
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Q4. What is the garbage collector in Java?
Ans. 
Garbage collector in Java is a built-in mechanism that automatically manages memory by reclaiming unused objects.
• Garbage collector runs in the background to identify and delete objects that are no longer needed.

• It helps in preventing memory leaks and optimizing memory usage.

• Examples of garbage collectors in Java include Serial, Parallel, CMS, and G1.
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Round duration - 30 Minutes
Round difficulty - Easy

This was a typical HR round with some standard Behavioral questions .

Q1. What is something about you that is not included in your resume?
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Q2. Why should we hire you?
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Q1. Basics of java, c, dbms
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Basic aptitude test, easy to clear

Q1. Difference between forecasting and budgeting
Ans. 
Forecasting involves predicting future trends based on historical data, while budgeting involves setting financial goals and allocating resources.
• Forecasting uses past data to predict future trends, while budgeting sets financial goals and allocates resources accordingly

• Forecasting is more focused on predicting outcomes, while budgeting is more focused on planning and controlling expenses

• Forecasting is typically done o...read more
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Q1. What is meant by inheritance How good are you about Spring boot and advantages of Spring boot. Spring annotations list them. List different design patterns Explain singleton design pattern Explain about co...read more
Ans. 
Questions related to Java programming language and Spring framework
• Inheritance is a mechanism in Java where a class acquires the properties of another class

• Spring Boot is a popular framework for building web applications in Java

• Advantages of Spring Boot include easy configuration, auto-configuration, and embedded servers

• Spring annotations are used to provide metadata to the Spring framework

• Some common Spring annotation...read more
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