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WhizCo Data Analyst Interview Questions and Answers
WhizCo Data Analyst Interview Experiences
1 interview found
Anonymous
I applied via Approached by Company and was interviewed in Mar 2022. There were 2 interview rounds.
(1 Question)
- Q1. How to merge two excel sheets?
- Ans.
To merge two excel sheets, use the VLOOKUP function or Power Query in Excel.
Open both sheets in Excel
Identify a common column in both sheets
Use VLOOKUP function to combine data based on the common column
Alternatively, use Power Query to merge the sheets
Ensure data types and formats match before merging
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
I was interviewed in Aug 2017.
Interview Preparation Tips
Experience: every one put their views
Tips: just tell anything. no one listen
Duration: 5 minutes
Round: Test
Experience: online test
Tips: do those question which can be solved without usingpen paper first
Duration: 5 minutes
Total Questions: 50
Skills: Relieving Pressure
I applied via Company Website and was interviewed before Jun 2020. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Python data structures
- Q2. MongoDB database algorithms
- Ans.
MongoDB database algorithms are used for efficient data storage, retrieval, and processing.
MongoDB uses various algorithms for indexing, sharding, and aggregation.
Indexing algorithms include B-tree, hash, and text search indexes.
Sharding algorithms include range-based, hash-based, and zone-based sharding.
Aggregation algorithms include map-reduce and aggregation pipeline.
MongoDB also uses algorithms for query optimizati
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed before Jun 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Da tools
Interview Preparation Tips
I applied via Walk-in and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- 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
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in Aug 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Prior experience,questions related to data analysis tools.
Interview Preparation Tips
The reason behind the offer letter delay is they have to get approvals from multiple teams which creates a delay on the process.
I applied via Naukri.com and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- Q1. What is Structured Query Language?
- Ans.
Structured Query Language (SQL) is a programming language used to manage and manipulate relational databases.
SQL is used to create, modify, and delete databases, tables, and data
It is used to retrieve data from databases using queries
SQL is used to perform operations on data such as sorting, filtering, and grouping
Examples of SQL-based database management systems include MySQL, Oracle, and Microsoft SQL Server
Interview Preparation Tips
Skills evaluated in this interview
Interview Questionnaire
3 Questions
- Q1. About my self and my experience.
- Q2. What's the reason for leaving previous job?
- Q3. Technical question depends on process.
I was interviewed in Sep 2016.
Interview Questionnaire
2 Questions
- Q1. Behavioral questions, what will you choose knowledge or money?Why?, etc . Other curricular activities that showcase your managerial skills, etc
- Q2. Focused on projects from resume and cross questioning. Can ask you about the tools or languages related questions if you have added that to CV. Followed by guesstimates where you will have to provide detai...
Interview Preparation Tips
Tips: It is advantageous if you have prior experience with data handling tools eg advanced EXCEL , SPSS
I was interviewed before Nov 2016.
Interview Preparation Tips
Experience: Only Written
Duration: 1 hour 45 minutes
Total Questions: 100
Skills: Proficiency In English, Basic concepts of computer, Commerce background with 50%
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