Infosys Interview Questions, Process, and Tips for Freshers

Q1. What is difference between put and patch
Ans. 
Put is used to create or update a resource, while patch is used to update a resource partially.
• Put is idempotent, meaning multiple identical requests will have the same effect as a single request

• Patch is not idempotent, as multiple identical requests may have different effects

• Put requires the client to send the entire updated resource, while patch only requires the client to send the specific changes

• Put is typically us...read more
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Q2. Csrf what is it
Ans. 
CSRF stands for Cross-Site Request Forgery, a type of attack where a malicious website tricks a user into performing actions on another website.
• CSRF attacks exploit the trust that a site has in a user's browser, allowing an attacker to perform actions on behalf of the user without their consent.

• Prevent CSRF attacks by using tokens to validate requests, ensuring that actions can only be performed by the intended user.

• Ex...read more
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Q3. Jwt token related questions
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Q1. Managerial questions
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Had to complete videos

Q1. Use of ai in real life
Ans. 
AI is used in real life for various applications such as virtual assistants, recommendation systems, autonomous vehicles, and fraud detection.
• Virtual assistants like Siri, Alexa, and Google Assistant use AI to understand and respond to user queries.

• Recommendation systems on platforms like Netflix and Amazon use AI to suggest personalized content based on user preferences.

• Autonomous vehicles use AI for navigation, objec...read more
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Tree and graph related questions

Freedom of work in organization

Q1. Project Management related
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Q2. Project Technical related.
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Q1. Program/Project Manager related
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Quant, english, reasoning

Q1. Introduction tell about yourself
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DSA and OOPS
Collections
Spring Boot
Hibernate
Junit

Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap allows null keys and values, but...read more
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Q2. Comparator vs Comparable
Ans. 
Comparator is used to define custom sorting order for objects, while Comparable is used to define natural ordering of objects.
• Comparator is an external class used for custom sorting logic

• Comparable is an interface used for natural ordering of objects

• Comparator can be used to sort objects based on multiple criteria

• Comparable is implemented by the class itself to define default sorting behavior
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