i
Capgemini
Filter interviews by
Hash map is a data structure that stores key-value pairs and allows fast retrieval of values based on keys.
Hash map uses hashing to store and retrieve values based on keys
It allows null values and null keys
It is not synchronized and not thread-safe
Example: HashMap<String, Integer> map = new HashMap<>();
map.put("apple", 1); int value = map.get("apple");
Primary key uniquely identifies a record while candidate key can also uniquely identify a record but may not be chosen as primary key.
Primary key is a column or set of columns that uniquely identifies each record in a table
Candidate key is a column or set of columns that can also uniquely identify each record in a table
A table can have multiple candidate keys but only one primary key
Primary key cannot have null va...
Memory management in Java involves automatic garbage collection and manual memory allocation.
Java uses automatic garbage collection to free up memory
Developers can manually allocate memory using the 'new' keyword
Java also has a 'finalize' method to clean up resources before garbage collection
Memory leaks can occur if objects are not properly released
Super key is a set of attributes that uniquely identifies a record, while foreign key is a reference to a primary key in another table.
Super key is a combination of one or more attributes that uniquely identifies a record in a table.
Foreign key is a field in a table that refers to the primary key of another table.
Super key can have additional attributes that are not necessary for uniqueness.
Foreign key establishes...
What people are saying about Capgemini
List of SQL languages
MySQL
Oracle
PostgreSQL
Microsoft SQL Server
SQLite
List of SQL languages and their brief explanation
SQL (Structured Query Language) is a standard language for managing relational databases
T-SQL (Transact-SQL) is a proprietary extension of SQL used by Microsoft SQL Server
PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's proprietary extension of SQL
MySQL is an open-source relational database management system that uses SQL
PostgreSQL is a...
Memory management and hash map are important concepts in Java programming.
Memory management is the process of allocating and deallocating memory in a program.
Java uses automatic memory management through garbage collection.
Hash map is a data structure that stores key-value pairs and uses hashing to retrieve values efficiently.
Java's HashMap class implements the Map interface and provides constant-time performance ...
Oops concepts are fundamental to Java programming and include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a class to inherit properties and methods from a parent class.
Polymorphism allows objects to take on multiple forms and behave differently based on their context.
Encapsulation hides the implementation details of a class and only exposes necessary information.
Abstraction focuses...
They will ask you to code some basic coding question.
I applied via Campus Placement and was interviewed in Mar 2022. There were 3 interview rounds.
Exceptional handling in Java is a mechanism to handle runtime errors and prevent program crashes.
Java provides try-catch blocks to handle exceptions
Multiple catch blocks can be used to handle different types of exceptions
Finally block is used to execute code regardless of whether an exception is thrown or not
Oops concepts are fundamental to Java programming and include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a class to inherit properties and methods from a parent class.
Polymorphism allows objects to take on multiple forms and behave differently based on their context.
Encapsulation hides the implementation details of a class and only exposes necessary information.
Abstraction focuses on t...
Memory management and hash map are important concepts in Java programming.
Memory management is the process of allocating and deallocating memory in a program.
Java uses automatic memory management through garbage collection.
Hash map is a data structure that stores key-value pairs and uses hashing to retrieve values efficiently.
Java's HashMap class implements the Map interface and provides constant-time performance for b...
List of SQL languages
MySQL
Oracle
PostgreSQL
Microsoft SQL Server
SQLite
I applied via Campus Placement and was interviewed in Oct 2021. There were 3 interview rounds.
Exception handling in Java allows for the handling of errors and exceptions that may occur during program execution.
Java provides try-catch blocks to handle exceptions.
The try block contains the code that may throw an exception.
The catch block catches and handles the thrown exception.
Multiple catch blocks can be used to handle different types of exceptions.
The finally block is optional and is executed regardless of whe...
Memory management in Java involves automatic garbage collection and manual memory allocation.
Java uses automatic garbage collection to free up memory
Developers can manually allocate memory using the 'new' keyword
Java also has a 'finalize' method to clean up resources before garbage collection
Memory leaks can occur if objects are not properly released
Hash map is a data structure that stores key-value pairs and allows fast retrieval of values based on keys.
Hash map uses hashing to store and retrieve values based on keys
It allows null values and null keys
It is not synchronized and not thread-safe
Example: HashMap<String, Integer> map = new HashMap<>();
map.put("apple", 1); int value = map.get("apple");
Primary key uniquely identifies a record while candidate key can also uniquely identify a record but may not be chosen as primary key.
Primary key is a column or set of columns that uniquely identifies each record in a table
Candidate key is a column or set of columns that can also uniquely identify each record in a table
A table can have multiple candidate keys but only one primary key
Primary key cannot have null values ...
Super key is a set of attributes that uniquely identifies a record, while foreign key is a reference to a primary key in another table.
Super key is a combination of one or more attributes that uniquely identifies a record in a table.
Foreign key is a field in a table that refers to the primary key of another table.
Super key can have additional attributes that are not necessary for uniqueness.
Foreign key establishes a re...
List of SQL languages and their brief explanation
SQL (Structured Query Language) is a standard language for managing relational databases
T-SQL (Transact-SQL) is a proprietary extension of SQL used by Microsoft SQL Server
PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's proprietary extension of SQL
MySQL is an open-source relational database management system that uses SQL
PostgreSQL is an ope...
I applied via Job Fair and was interviewed before Feb 2021. There were 2 interview rounds.
What people are saying about Capgemini
I applied via Referral and was interviewed before Apr 2020. There were 5 interview rounds.
I appeared for an interview in Jun 2016.
I appeared for an interview before Nov 2016.
I worked on a project analyzing customer data to identify trends and improve marketing strategies.
Used data analysis techniques to identify patterns and correlations in customer behavior
Developed predictive models to forecast customer preferences and optimize marketing campaigns
Collaborated with cross-functional teams to implement data-driven strategies and measure their impact
Conducted A/B testing to evaluate the effe...
I am a detail-oriented analyst with a strong background in data analysis and problem-solving, passionate about driving insights from data.
Educational Background: I hold a degree in Statistics, which provided me with a solid foundation in data analysis techniques.
Professional Experience: I have over 3 years of experience working as a data analyst at XYZ Corp, where I improved reporting efficiency by 30%.
Technical Skills...
I strive for honesty, but like everyone, I may not always be 100% truthful in every situation.
Honesty is important in my work, but I recognize that context matters.
For example, I might withhold certain details to protect someone's feelings.
In data analysis, I present findings accurately, but interpretations can vary.
I believe in transparency, yet I also understand the need for discretion.
Multithreading in Java refers to the concurrent execution of two or more parts of a program for maximum utilization of CPU.
Multithreading allows multiple threads to run concurrently within a single program.
It improves the performance of the program by utilizing the CPU more efficiently.
Java provides built-in support for multithreading through the java.lang.Thread class.
Multithreading can be used for tasks such as backg...
CPU scheduling policies include FCFS, SJF, Round Robin, Priority, and Multilevel Queue. The operating system does the scheduling.
FCFS (First Come First Serve)
SJF (Shortest Job First)
Round Robin
Priority
Multilevel Queue
Operating system does scheduling
Jvm is Java Virtual Machine. It manages threads on its own.
Jvm is a virtual machine that executes Java bytecode.
It provides a runtime environment for Java programs.
Jvm manages threads on its own using its own thread scheduler.
Jvm is platform-independent and provides a layer of abstraction between the Java code and the underlying operating system.
Examples of popular JVM implementations include Oracle's HotSpot and OpenJ...
Tree traversal is a technique to visit all nodes of a tree in a specific order.
There are three types of tree traversals: inorder, preorder, and postorder.
Inorder traversal visits the left subtree, then the root, and then the right subtree.
Preorder traversal visits the root, then the left subtree, and then the right subtree.
Postorder traversal visits the left subtree, then the right subtree, and then the root.
For exampl...
ArrayList and Vector are both dynamic arrays, but Vector is synchronized and slower. Traversing a Vector is similar to an ArrayList.
ArrayList is not synchronized, while Vector is synchronized.
ArrayList is faster than Vector, but Vector is thread-safe.
To traverse a Vector, we can use a for loop or an iterator, similar to an ArrayList.
Example: Vector
TCS is a leading global IT services company with a strong reputation and diverse opportunities for growth.
TCS has a strong reputation in the IT industry
TCS offers diverse opportunities for growth and learning
TCS has a global presence and works with top clients
TCS has a strong focus on innovation and technology
TCS provides a supportive and inclusive work environment
Tata Salt is the product used in every house.
Tata Salt is a brand of salt produced by Tata Chemicals.
It is the market leader in India with a 27% market share.
Tata Salt has been fortified with iodine to help address iodine deficiency in India.
It is available in various sizes and packaging options to suit different needs.
Tata Salt has won several awards for its quality and innovation.
My hobby and passion is photography.
I love capturing moments and telling stories through my photographs.
I enjoy exploring different techniques and experimenting with composition.
Photography allows me to express my creativity and view the world from unique perspectives.
I have participated in several photography competitions and my work has been featured in local exhibitions.
Some of my favorite subjects to photograph are...
Rohit Sharma's experience and leadership skills make him an ideal captain for the Indian cricket team.
Rohit Sharma has a proven track record as captain in IPL, leading Mumbai Indians to multiple titles.
His calm demeanor under pressure helps in making strategic decisions during crucial matches.
Rohit's ability to adapt his batting style according to the situation is crucial for leading by example.
He has a good rapport wi...
A good leader possesses qualities such as strong communication skills, empathy, integrity, and the ability to inspire and motivate others.
Strong communication skills: A good leader is able to effectively convey their ideas and instructions to their team members.
Empathy: A good leader understands and considers the feelings and perspectives of their team members, fostering a positive and supportive work environment.
Integ...
Being stranded in a foreign country with no money or means to communicate
Lost my wallet with all my money and identification
Couldn't speak the local language to ask for help
Had to rely on the kindness of strangers for assistance
based on 1 interview experience
Difficulty level
Duration
Consultant
58.6k
salaries
| ₹8.9 L/yr - ₹16.5 L/yr |
Associate Consultant
51.2k
salaries
| ₹4.5 L/yr - ₹10 L/yr |
Senior Consultant
50k
salaries
| ₹12.4 L/yr - ₹21 L/yr |
Senior Analyst
22.1k
salaries
| ₹3.1 L/yr - ₹7.5 L/yr |
Senior Software Engineer
21.6k
salaries
| ₹4.7 L/yr - ₹12.9 L/yr |
Wipro
Accenture
Cognizant
TCS