Head Digital Works Associate Interview Questions and Answers

Q1. Javascript and React fundamentals
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Question completely out of domain

1. Questions related to python.
2. Find the count of unique elements in a list.

1. Implementation of any sorting.
2. Questions related to testing and pytest framework.

Q1. Casual conversation with Senior manager
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Q2. Tell me about your self.
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Q3. Discussion about job profile.
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Q1. Salary discussion.
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Q1. Gaming and network knowledge
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Gaming and network knowledge

Q1. Salary discussion
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Link list program, few objective based on cpp

Q1. Good Core knowledge cpp
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Q2. Pointer, static , constant used in multiple scenario. Oops, STL
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Q1. How would you approach writing a program that creates a new integer array based on the following condition: Given an input integer array, for each element in the array, calculate the sum of all integers sm...read more
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Create a new array with sums of all integers smaller than each element in the input array.
• Iterate through the input array and for each element, calculate the sum of all integers smaller than the current element.

• Populate the new array with these sums.

• Use a lambda expression to simplify the code.
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Q2. How would you approach writing a program that clears a grid based on following conditions. 1. Take any grid which has values in each cell. There is a ball that moves in all 8 directions from any point in t...read more
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Approach: Create a program to clear a grid by moving a ball in all 8 directions and clearing cells at the center.
• Create a grid with values in each cell

• Randomly select a starting point and direction for the ball

• Move the ball in all 8 directions, clearing cells at the center

• Reroute the ball when it reaches the edge

• Continue until all cells are cleared
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Q3. How does a IEnumerator work in C# and not in Unity. For ex: If i have a function that has yield return 8; yield return 10; yield return 15; in 3 lines how does it work. I have answered it based on unity,...read more
Ans. 
An IEnumerator in C# is used to iterate over a collection of objects one at a time, allowing for more efficient memory usage and performance.
• IEnumerator is used to implement custom iterators in C# by defining a method with a yield return statement.

• Each time the iterator is called, it returns the next value in the sequence defined by the yield return statements.

• IEnumerators can be used in foreach loops to iterate over t
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Q1. Write a sql query
Ans. 
SQL query to retrieve employee names and their salaries from a table
• Use SELECT statement to retrieve data

• Specify the columns you want to retrieve (employee names and salaries)

• Specify the table name where the data is stored
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Q2. Formula of vlookup
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VLOOKUP is a function in Excel used to search for a value in a table and return a corresponding value.
• VLOOKUP searches for a value in the first column of a table and returns a value in the same row from a specified column.

• The formula syntax is =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup]).

• Example: =VLOOKUP(A2, B2:D10, 3, FALSE) will search for the value in cell A2 in the range B2:D10 and return the...read more
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