NICE Interview Questions, Process, and Tips

Q1. Previous experience
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Q2. Resume questions
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MCQ with Coding output ques + DS

Q1. General Aptitude
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Q2. DSA Leetcode question
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Q1. OS related questions advanced
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Q1. What are the pillars of oops?
Ans. 
The pillars of OOP are encapsulation, inheritance, and polymorphism.
• Encapsulation: bundling of data and methods into a single unit

• Inheritance: ability to create new classes from existing ones

• Polymorphism: ability to use a single interface for multiple types
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Q2. Web api Security mechanism
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Web API security mechanisms protect against unauthorized access and ensure data integrity.
• Authentication: Verify the identity of the user or client accessing the API.

• Authorization: Determine what actions the authenticated user or client is allowed to perform.

• Encryption: Securely transmit data over the network using encryption algorithms.

• Input validation: Validate and sanitize user input to prevent common security vulne...read more
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Q3. Deadlock in Sql
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Deadlock in SQL occurs when two or more transactions permanently wait for each other to release resources.
• Deadlock happens when two or more transactions acquire locks on resources and wait for each other indefinitely.

• It can occur due to poor transaction scheduling, lock contention, or incorrect use of transactions.

• To prevent deadlock, use proper transaction isolation levels, minimize lock contention, and ensure transac...read more
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