Accenture Federal Services Data Analyst Interview Questions and Answers

Q1. Tell me about the tool you worked on?
Ans. 
I worked on a data visualization tool for tracking sales performance.
• The tool was built using Tableau and SQL.

• It allowed users to view sales data by region, product, and time period.

• Users could also create custom dashboards and reports.

• The tool helped identify trends and opportunities for improvement.

• I collaborated with the sales team to ensure the tool met their needs.
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Round duration - 120 Minutes
Round difficulty - Medium

Q1. 
Ninja and His Secret Information Encoding Problem
Ninja, a new member of the FBI, has acquired some 'SECRET_INFORMATION' that he needs to share with his team. To ensure security against hackers, Ninja dec...read more
Ans. 
The task is to encode and decode 'SECRET_INFORMATION' for security purposes and determine if the transmission was successful.
• Read the number of test cases 'T'

• For each test case, encode the 'SECRET_INFORMATION' and then decode it

• Compare the decoded string with the original 'SECRET_INFORMATION'

• Print 'Transmission successful' if they match, else print 'Transmission failed'
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Round duration - 60 Minutes
Round difficulty - Medium

Q1. 
Equilibrium Index Problem Statement
Given an array Arr consisting of N integers, your task is to find the equilibrium index of the array.
An index is considered as an equilibrium index if the sum of elem...read more
Ans. 
Find the equilibrium index of an array where sum of elements on left equals sum on right.
• Iterate through the array and calculate prefix sum and suffix sum at each index.

• Compare prefix sum and suffix sum to find equilibrium index.

• Return the left-most equilibrium index or -1 if none found.
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Round duration - 50 Minutes
Round difficulty - Easy

Q1. How to transpose data set
Ans. 
Transposing a data set involves flipping rows and columns.
• Identify the data set to be transposed

• Create a new table with the columns and rows flipped

• Copy the data from the original table to the new table

• Transpose can be done using Excel, Python, R, SQL, etc.

• Example: Transposing a table of sales data to have products as rows and months as columns
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