NTT Global Data Centers and Cloud Infrastructure Engineer Trainee Interview Questions and Answers

The round was done on google form, where students were given 1 hour to solve some aptitude questions.

There were 3 coding questions which required basic programming knowledge. Anyone who did all 3 skipped another coding round to direct interview.

Q1. Project Related questions were there. For example I had projects related to Machine Learning so I was asked about various activations functions, Algorithms, etc.
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Q2. Reverse a linked list.
Ans. 
Reverse a linked list by changing the pointers direction.
• Start with three pointers: current, previous, and next.

• Iterate through the linked list, updating the pointers to reverse the direction.

• Update the head of the linked list to be the previous node once the end is reached.
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Q3. Write a sql query to join two tables and find some data from one table.
Ans. 
SQL query to join two tables and retrieve data from one table.
• Use JOIN keyword to combine tables based on a related column

• Specify the columns to retrieve using SELECT statement

• Add conditions using WHERE clause if needed
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You must prepare all the aptitude concepts

You should know how to speak well and fluent with polite manner