Synechron Node JS Developer Interview Questions and Answers

Q1. What is one problem that interfaces solve that abstract classes do not?
Add your answer
Q2. Write a program that takes a string of words, including spaces and special symbols, and returns each occurrence of a specified character, excluding spaces and special symbols.
Add your answer
Q3. Could you explain how the autowired annotation functions internally?
Add your answer
Q4. How does Spring Boot determine which data source to use for application execution when multiple data sources are available and no specific profile has been defined?
Add your answer
Q5. What can you explain about the qualifier annotation?
Add your answer

Q1. Run time polymorphism code
Add your answer
Q2. Linked list code
Add your answer
Q3. Deep copy shallow copy differences
Ans. 
Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.
• Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.

• Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...read more
Answered by AI
Add your answer

Q1. More deep questions about polymorphism code
Add your answer
Q2. Code for interchange of strings without strcpy
Ans. 
Use a loop to swap characters of two strings without using strcpy function.
• Create two arrays of characters to store the strings

• Use a loop to iterate through each character of the strings and swap them

• Ensure to handle cases where strings have different lengths
Answered by AI
Add your answer

Aptitude, core concepts and a code

Q1. What is the one thing you learnt from college club?
Ans. 
I learned the importance of teamwork and collaboration from my college club.
• Developed strong communication skills by working with diverse group of individuals

• Learned how to delegate tasks effectively to achieve common goals

• Gained experience in problem-solving and conflict resolution through group projects
Answered by AI
Add your answer
Q2. What is the one thing you want to expereince?
Ans. 
I want to experience living in a different country and immersing myself in a new culture.
• Traveling to a foreign country and learning about their customs and traditions

• Trying new foods and experiencing different ways of life

• Making friends with locals and exploring the local attractions
Answered by AI
Add your answer

Q1. Difference between relational and non relational dbms
Ans. 
Relational DBMS stores data in tables with predefined relationships, while non-relational DBMS stores data in flexible, schema-less formats.
• Relational DBMS uses structured query language (SQL) for querying data

• Non-relational DBMS can store data in various formats like key-value pairs, document-based, graph databases

• Relational DBMS ensures data integrity through normalization and constraints

• Non-relational DBMS offers be...read more
Answered by AI
Add your answer
Q2. Difference betweeen class,abstract class,interface in python
Ans. 
Class is a blueprint for creating objects, abstract class cannot be instantiated and can have abstract methods, interface is a contract for classes to implement certain methods.
• Class is a blueprint for creating objects with attributes and methods.

• Abstract class cannot be instantiated and can have abstract methods that must be implemented by subclasses.

• Interface is a contract for classes to implement certain methods, bu
Answered by AI
Add your answer
Q3. Project related questions were asked
Add your answer

A standard online test conducted through one of the testing platforms.

Q1. Java 8 features
Add your answer
Q2. Rest API
Add your answer
Q3. Java 8 coding problem
Add your answer
Q4. Collections
Add your answer

Q1. It was based on my previous project
Add your answer

Q1. Basics of java like string ,string builder ,Buffer,scp
Add your answer
Q2. Spring boot annotaions
Add your answer

SQL , CODING QUESTION PYTHON

Q1. BASIC SQL QUESTIOS
Add your answer
Q2. OOPS 4 PILLARS INHERITANCE ETC
Add your answer

Q1. TELL ME ABOUT YOURSELF
Add your answer
Q2. WHAT DO YOU KNOW ABOUT YOUR COMPANY
Add your answer

Good,SQL query and c# programs

Q1. Oops related questions
Add your answer
Q2. Design pattern related questions
Add your answer

Q1. Core java oops concepts
Add your answer
Q2. Angular basic topics
Add your answer

Q1. Spring boot topics
Add your answer
Q2. Oracle queries examples
Ans. 
Examples of Oracle queries
• Use SELECT statement to retrieve data from a table

• Use WHERE clause to filter results based on a condition

• Use JOIN to combine rows from two or more tables based on a related column
Answered by AI
Add your answer

Q1. Discussed about my carrer details
Add your answer
Q2. Expected CTC discussed
Add your answer