Publicis Sapient Node JS Developer Interview Questions and Answers

Collection hierarchy in Java includes interfaces like Collection, List, Set, Queue, and Map with their respective implementations.

• Collection interface is the root interface in the collection hierarchy

• List interface extends Collection and allows duplicate elements, with implementations like ArrayList and LinkedList

• Set interface extends Collection and does not allow duplicate elements, with implementations like HashSet a...read more

SQL command for creating a table

• Use CREATE TABLE statement

• Specify table name and column names with data types

• Add any constraints or indexes as needed

SQL commands for inserting, updating, and deleting data from a table.

• INSERT INTO table_name (column1, column2, column3) VALUES (value1, value2, value3);

• UPDATE table_name SET column1 = new_value1 WHERE condition;

• DELETE FROM table_name WHERE condition;

Truncate and drop are SQL commands used to remove data from a table.

• Truncate removes all data from a table but keeps the structure intact.

• Drop removes the entire table and its structure.

• Truncate is faster than drop as it only removes data.

• Drop cannot be undone while truncate can be rolled back.

• Truncate resets the identity of the table while drop does not.

• Examples: TRUNCATE TABLE table_name; DROP TABLE table_name;

I have always been fascinated by technology and its ability to solve complex problems.

• I enjoy problem-solving and logical thinking

• I have a natural curiosity for how things work

• I see the potential for technology to make a positive impact on society

• I have experience in programming and find it rewarding

• I am excited about the constant innovation and evolution in the IT industry

Object-oriented programming (OOP) is a programming paradigm that uses objects to represent and manipulate data.

• Encourages modular and reusable code

• Provides a clear structure and organization to the code

• Allows for easier maintenance and updates

• Supports code reusability through inheritance and polymorphism

• Enables encapsulation, hiding the internal details of an object

• Promotes code extensibility and scalability

• Facilitates...read more

I want to join ATOS because of their reputation for innovation and their commitment to employee growth and development.

• ATOS is known for its innovative solutions in the software development industry.

• I am impressed by ATOS's focus on employee growth and development through training programs and career advancement opportunities.

• ATOS has a strong reputation for delivering high-quality software solutions to its clients.

• I b...read more