Nagarro Senior Software Engineer 2 Interview Questions and Answers

You need to give a coding test which is for 4.5 hours, where you are given a scenarios and you need to create API to fetch the response from an external API and according parse the response for whatever you need and perform some business logic for same.

Q1. Technical questions based on the code you had submitted earlier, and then again they check you for technical skills based on patterns, junit, threading, security, deployments etc
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Q2. What is the need for @Service annotation?
Ans. 
The @Service annotation is used in Spring framework to indicate that a class is a service component.
• Used to mark a class as a service component in Spring framework

• Helps in auto-detection and auto-configuration of Spring beans

• Facilitates dependency injection and inversion of control
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Q1. Here you are given a particular scenario and based on that you need to draw system diagram for same and explain them about why and what is needed.
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Q2. Draw a system diagram for ecommers system to place an order and get order history for a particular customer
Ans. 
System diagram for e-commerce order placement and history retrieval
• Frontend: Customer interface for browsing products, adding to cart, and placing orders

• Backend: Order processing system to handle order placement, payment processing, and order fulfillment

• Database: Store customer information, order details, and order history for retrieval

• APIs: Communication between frontend, backend, and database for seamless order proce...read more
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Q1. This round is to check what kind of behavior you showcase in certain situations and what kind of challenges you face in current team structure
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Q1. This round again judges you on cultural fitment, where they check what do you currently do and what kind of challenges or conflicts you face in team structure.
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Q1. What are traits and how to use it in PHP ?
Ans. 
Traits in PHP are a mechanism for code reuse in single inheritance languages.
• Traits are a way to group functionality in a fine-grained and consistent way.

• They allow developers to reuse sets of methods freely in several independent classes.

• To use a trait in PHP, you use the 'use' keyword followed by the trait name.

• Traits can be composed into a class using multiple 'use' statements.

• Traits can also have abstract methods t...read more
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Q2. Basic question on core PHP and OOPs concepts?
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Q1. Interview Questions about Java, Spring boot and other technical frameworks you worked on
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Q2. Implement Binary search tree
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Binary search tree is a data structure where each node has at most two children, with the left child being less than the parent and the right child being greater.
• Start with a root node and insert new nodes by comparing values and traversing left or right accordingly.

• Implement functions for insertion, deletion, search, and traversal (inorder, preorder, postorder).

• Ensure the tree remains balanced to maintain efficient se
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Q3. How hash map works in java
Ans. 
HashMap in Java is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• HashMap uses hashing to store key-value pairs in an array of linked lists.

• It uses the hashCode() method of keys to determine the index where the value will be stored.

• If two keys have the same hashCode, they are stored in the same linked list at that index.

• HashMap allows null keys and values, but only on...read more
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Q1. Salary discussion
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Average to easy difficulty level.

Q1. Java code of string manipulation
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Q2. What is the Java code for various types of sorting algorithms?
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Q3. Sql query and topics related to joins.
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Q1. About yourself and family
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Q2. What do you know about the company?
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Q3. Can you provide examples of real-life scenarios where you handled conflicts with either a colleague or a manager?
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Q4. What actions would you take if your manager does not approve your product idea, and how would you attempt to persuade them?
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Topics on electronics and C programming

Q1. Questions on simple python programs and electronics basics
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Q2. Question on simple linked list
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Q3. Program for fibonacci seq
Ans. 
Program to generate Fibonacci sequence
• Start with two initial numbers, 0 and 1

• Add the previous two numbers to get the next number in the sequence

• Repeat this process to generate the Fibonacci sequence

• Example: 0, 1, 1, 2, 3, 5, 8, 13, ...
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Q4. Questions on mosfets
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Q1. Why you would like to join the company, and other questions
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Q1. Explain over all experience
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Q2. Asked question on Core and advance java topic
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Q1. Some advance topic of Java
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Q2. DSA
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Q1. Salary expectation
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Q2. Relocation
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