Voltas Software Developer Interview Questions and Answers

Round duration - 90 Minutes
Round difficulty - Medium

It was in the morning at our institute. There were technical and aptitude problems.

Q1. 
Star Pattern Generation
Develop a function to print star patterns based on the given number of rows 'N'. Each row in the pattern should follow the format demonstrated in the example.
The picture illustra...read more
Ans. 
Function to print star patterns based on the given number of rows 'N'.
• Iterate through each row from 1 to N

• For each row, print spaces (N-row) followed by stars (2*row-1)

• Repeat until all rows are printed
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Round duration - 30 Minutes
Round difficulty - Medium

It was actually a Techno HR round. I was asked some technical questions about OS, OOPS, COMPUTER NETWORKING, WEB DEVELOPMENT. He went through my whole resume, asked about all the projects and past working experiences. The interviewer was really good, we talked about so many other topics, from Women empowerment to Water Crises. I felt really confident while speaking because he made me so comfortable.

Q1. 
Selection Sort Algorithm
Selection sort is a sorting technique that works by repeatedly finding the minimum element (considering ascending order) from the unsorted part and placing it at the beginning of ...read more
Ans. 
Selection Sort Algorithm sorts an array by repeatedly finding the minimum element and placing it at the beginning of the unsorted part.
• Iterate through the array to find the minimum element and swap it with the first unsorted element.

• Repeat this process for each element in the array until it is fully sorted.

• Time complexity of Selection Sort is O(n^2) making it inefficient for large arrays.
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Q1. C,c++ questions like oops
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Networking and linux internals

Q1. Why should I hire you?
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Q2. What is your salary expectation?
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Q3. Why you chose our company?
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Coding test had two questions which we should solve using any of the programing language

Q1. Why do we use truncate in sql
Ans. 
Truncate is used in SQL to quickly delete all records from a table without logging individual row deletions.
• Truncate is faster than using DELETE statement as it does not log individual row deletions.

• Truncate resets the identity seed value of the table.

• Truncate cannot be rolled back and does not activate triggers.
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Q2. Memory management techniques in os.
Ans. 
Memory management techniques in operating systems involve allocation, deallocation, and optimization of memory usage.
• Memory partitioning: dividing memory into fixed-size or variable-size partitions for allocation to processes.

• Paging: dividing memory into fixed-size blocks and allocating them to processes as needed.

• Segmentation: dividing memory into logical segments based on program structure.

• Virtual memory: using disk ...read more
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Q1. Just gave description about the jd.
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4 coding questions set of 2 and 2,2 languages to be chosen prior to interview, They came on Campus, but preferred equal boys and girls ommitting talented boys