3i Infotech System Engineer Interview Questions and Answers for Experienced

Find duplicate value in list of integer

Q1. Java 8 features multithreading
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Q2. Database find second highest salary
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Q1. Most of AD, Server, VWware,
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Q1. General discussion related to overall experience and technology
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Q1. Technical questions related to Desktop support, Outlook, configurations, onboarding process and salary negotiations.
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Q1. What is Nested List with example
Ans. 
A nested list is a list that contains other lists as its elements.
• Nested lists can be created using square brackets and separating the elements with commas.

• Elements of a nested list can be accessed using indexing and slicing.

• Example: my_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

• Accessing element 5: my_list[1][1]
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Q2. What is queue , explain with example
Ans. 
A queue is a data structure that follows the First In First Out (FIFO) principle.
• Elements are added to the back of the queue and removed from the front.

• Example: A line of people waiting for a movie ticket.

• Operations: Enqueue (add element to back), Dequeue (remove element from front), Peek (view front element)
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