JNK INDIA. Interview Questions and Answers

Q1. Can you please tell us about yourself?
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Q2. Can you describe some recent development work that you have completed?
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Q3. What are the differences between DDP, DPP and process property?
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Q4. What steps can you take to speed up execution through development changes?
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Q1. What are your reasons for wanting to leave your current organization and join ours?
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Q2. What are your preferences between financial compensation and job satisfaction?
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Q3. Where do you envision yourself in the next five years?
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Attended the TCS NQT, depending on how many advanced questions and the test cases you pass in coding section, you'll get assigned Ninja (3L) Digital (7L) or prime (9L)

Q1. Code to get prime nos
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Q2. What do you know about cloud computing
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Q3. Self introduction
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Q4. Difference between cloud computing and computer networking
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Q5. If you know any os like linux
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Q6. Oops based questions, very basic if you're not from it or cse related fields but they might ask advanced questions if you're related to cs/it fields
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Q7. If you're okay Relocation
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Q8. Questions about your projects
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Q1. Tell me about yourself.
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Q2. What makes you the ideal candidate for this position?
Ans. 
I have a strong background in customer service, excellent communication skills, and a passion for helping customers.
• Extensive experience in customer service roles

• Excellent communication skills

• Strong problem-solving abilities

• Passion for helping customers

• Proven track record of resolving customer issues efficiently
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Q1. They will Voice test
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Q1. Tell me about your self, what are languages you know, what do you know about phone pe
Ans. 
I am fluent in English, Hindi, and Spanish. I have knowledge about PhonePe's services and features.
• Fluent in English, Hindi, and Spanish

• Knowledge about PhonePe's services and features

• Experience in customer service roles
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Q1. They will check our typing test
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A sequence was provided: 4181, 2684, 1597, 987, 610.
first 2 are given and write code for other value calculation using java 8

The second question required writing a reverse of a palindrome using both Java 8 streams. I was able to successfully write both and clear the first round.

Q1. Interviewer was himself not knowing anything as it was walkin drive he was sitting infront of me and checking questions on phone Introduction that he inturrepted in between when I was introducing myself
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Q2. What are the features of Java 17, specifically related to sealed classes, including their syntax and necessity, along with the potential errors encountered when invoking a sealed class?
Ans. 
Java 17 introduces sealed classes to restrict inheritance and improve code maintainability.
• Sealed classes are declared using the 'sealed' keyword followed by the permitted subclasses.

• Subclasses of a sealed class must be either final or sealed themselves.

• Errors may occur when trying to extend a sealed class with a non-permitted subclass.
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Q3. Java 8 feathers stream api, functional interface, Intermittent operator ,Ternary operator, Prediction,Bi predicate. Answered all successfully
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Q4. Draw low level design of implementation of notify me if item is back in stock in a ecommerce application
Ans. 
Implementation of 'notify me if item is back in stock' feature in an ecommerce application
• Create a database table to store user notifications for out-of-stock items

• Implement a service to check item availability and send notifications to subscribed users

• Provide a user interface for users to subscribe to notifications for specific items
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Q5. All design patterns which I know. Asked me to implement adapter pattern on paper
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Q6. Then given a problem that concurrent way perform operation on excell to decrease the response time
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