Nagarro Software Developer Interview Questions, Process, and Tips

Q1. What is ASYNC/AWAIT
Ans. 
ASYNC/AWAIT is a feature in JavaScript used for handling asynchronous operations.
• ASYNC is used to define a function as asynchronous

• AWAIT is used to pause the execution of a function until a Promise is settled

• ASYNC/AWAIT simplifies asynchronous code and makes it easier to read and write

• Example: async function fetchData() { await fetch('https://api.example.com/data'); }
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Q2. What is event driven architecture
Ans. 
Event driven architecture is a design pattern where the flow of the system is determined by events.
• Events are generated by various components and can trigger actions in other components.

• It allows for loosely coupled systems, as components can communicate without direct dependencies.

• Common examples include message queues, pub/sub systems, and webhooks.
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Q1. Easy level DSA questions
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Q2. Indepth Java Questions, including multi-threading, design principles, etc
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Typical graph questions with dfs and bfs

Aptitude, coding and technical questions

Q1. Dual logging in Spring Mvc architecture.
Ans. 
Dual logging in Spring MVC architecture involves configuring two different logging frameworks to log messages in parallel.
• Configure both Logback and Log4j in the Spring MVC application

• Use different log levels for each framework to control the verbosity of logs

• Specify separate log files for each framework to store the log messages
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Q1. Middle of linked list
Ans. 
To find the middle element of a linked list, use two pointers - one moving at twice the speed of the other.
• Initialize two pointers, slow and fast, at the head of the linked list.

• Move slow pointer by one node and fast pointer by two nodes until fast pointer reaches the end of the list.

• The node pointed to by the slow pointer at this point is the middle element of the linked list.
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Q2. Binary search, merge sort,string permutations
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Q3. What is polymorphism?
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.
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