Nuclei Interview Questions and Answers

It lasted for around 1hr 30 minutes, I have a nice developer profile, so they asked me simple DSA questions. I was asked to write the code on an online IDE and the question was given to me on google docs while the platform for the interview was gather.
The first question was a medium array question and the other one was a medium DP question.

It lasted to 2hrs, they asked to design a system related to a payment application, I had to write a working implementation for the task given. the requirements were 5 pages on google docs and I had to implement that on the online IDE. After this, I was asked a lot of Core concepts related to DBMS, OOPS, OS, Network security and Computer Networks.

Q1. How do you help other, kindly Give real life examples.
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Q2. Have you ever suggested someone an innovative idea? Give real life example
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Q3. How do you help your peers with their growth? How do you contribute? Give real life example.
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Q4. Are you able to communicate your problems with others, if so, what kind of problems do you share with others and with whom?
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Q1. Basics of accounting and gst
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Q2. Accrual concept Advance expenses Accrued income Defferend revenue
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Q3. Gstr return due date Tds section 194 j 192 ,194c
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Q1. Same as first round but they ask ITC of gst
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Q1. In some of the cases they took 3rd round it is also similar as first and second round
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Q1. What are spring bean scope ?
Ans. 
Spring bean scope defines the lifecycle and visibility of a bean in the Spring container.
• Singleton scope: Only one instance of the bean is created and shared across the application.

• Prototype scope: A new instance of the bean is created every time it is requested.

• Request scope: A new instance of the bean is created for each HTTP request.

• Session scope: A new instance of the bean is created for each HTTP session.

• Global se...read more
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Q2. Explain internal working of hashmap?
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to provide constant time complexity for basic operations.
• HashMap internally uses an array of linked lists called buckets to store the key-value pairs.

• When a key-value pair is added, the hash code of the key is computed and used to determine the index of the bucket.

• If multiple key-value pairs have the same hash code, they are stored as a linked lis...read more
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Q1. Situtional based question asked, basically problem solving kind.
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Q2. What is the difference between Spring singletone ans java singletone ?
Ans. 
The main difference is that Spring singleton is managed by the Spring container, while Java singleton is managed by the developer.
• Spring singleton is created and managed by the Spring container, while Java singleton is created and managed by the developer.

• Spring singleton is a design pattern used in Spring framework to create a single instance of a class, while Java singleton is a design pattern used in Java to create ...read more
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Q3. Singletone is Thread Safe?
Ans. 
No
• Singleton is not inherently thread-safe

• Multiple threads can access and modify the singleton instance simultaneously

• To make it thread-safe, synchronization or double-checked locking can be used

• Alternatively, an enum implementation of singleton is inherently thread-safe
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Given a problem in DSA related to stack, queues, binary search, and binary tree

Q1. Asked about the DSA questions, optimizations and CS fundamentals
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Q1. Basic and regular HR questions, how do you make yourself accountable, why you should join the company
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