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Datamatics Global Services Data Engineer Interview Questions and Answers
Datamatics Global Services Data Engineer Interview Experiences
1 interview found
I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
(8 Questions)
- Q1. Python Coding Question 1: Make a list with all datatypes objects in it.
- Ans.
Create a list containing all Python data types.
Use the following data types: int, float, complex, str, list, tuple, dict, set, bool, bytes, bytearray, memoryview, None
Example: ['int', 'float', 'complex', 'str', 'list', 'tuple', 'dict', 'set', 'bool', 'bytes', 'bytearray', 'memoryview', 'None']
- Q2. Python Coding Question 2: Extract a character from the string present in the list.
- Ans.
Extract a character from a string in a list of strings.
Iterate through the list of strings
Use indexing to extract the desired character from each string
Handle cases where the index is out of range
Return the extracted characters as a new list
- Q3. Python Coding Question 3: Make a dictionary with Name and Age having 4 records.
- Ans.
Create a dictionary with Name and Age for 4 records in Python.
Use curly braces {} to create a dictionary.
Separate key-value pairs with a colon :
Separate each record with a comma ,
- Q4. Python Coding Question 4: Make a string and write code to return the output with the reverse string.
- Q5. Python Coding Question 5: Write a function to check if the string is Palindrome. Check the function with a Palindrome.
- Ans.
Function to check if a string is a palindrome.
Create a function that takes a string as input.
Reverse the string and compare it with the original string.
Return true if they are the same, false otherwise.
Example: 'racecar' is a palindrome.
- Q6. SQL Coding Question 1: Write an SQL query to extract the data from employees table, extract day of joining, month of joining, year of joining from the "Date Of Joining".
- Q7. What is Data normalization and standardization?
- Ans.
Data normalization is the process of organizing data in a database efficiently, while data standardization is the process of ensuring consistency and uniformity in data.
Data normalization involves organizing data into tables and columns to reduce redundancy and improve data integrity.
Data standardization involves ensuring that data is consistent and uniform across the database.
Normalization helps in reducing data redun...
- Q8. Statistics/Probability Question: 4 ball of each colors(Red, Green, Blue) are present in the box. After drawing 3 ball randomly from the box, what is the probability of getting all 3 ball having the same co...
- Ans.
The probability of drawing 3 balls of the same color from a box containing 4 balls of each color (Red, Green, Blue).
Calculate the total number of ways to draw 3 balls out of 12 balls
Calculate the number of ways to draw 3 balls of the same color
Divide the number of favorable outcomes by the total number of outcomes to get the probability
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Virtusa Consulting Services
Anonymous
posted on 7 Aug 2021
I applied via Naukri.com and was interviewed before Aug 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. I interviewed here for Fidelity, so bith technical rounds were conducted by Fidelity associates. They asked me deeper as well as common questions from Power Bi and SQL query writing.
Interview Preparation Tips
ankit varu
(1 Question)
- Q1. About sql, python
(1 Question)
- Q1. About family, hobbies
(1 Question)
- Q1. Questions related to projects
(1 Question)
- Q1. Questions related to projects and some scenario based questions
(1 Question)
- Q1. Questions related to projects
(1 Question)
- Q1. Questions related to projects and some scenario based questions
I applied via LinkedIn and was interviewed in Apr 2024. There were 2 interview rounds.
Basic Maths and aptitude questions
(1 Question)
- Q1. Interview cancelled and no response
Dsa question were asked along with lr and sql
Tell _____ no of in Delhi
Interview Preparation Tips
RISHABH Pal
Selected
I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
The Aptitude Test session accesses mathematical and logical reasoning abilities
(6 Questions)
- Q1. What is Vlookup
- Ans.
Vlookup is a function in Excel used to search for a value in a table and return a corresponding value from another column.
Vlookup stands for 'Vertical Lookup'
It is commonly used in Excel to search for a value in the leftmost column of a table and return a value in the same row from a specified column
Syntax: =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])
Example: =VLOOKUP(A2, B2:D10, 3, FALSE) - searc...
- Q2. Some IF else Question in Excel
- Q3. What does your day in your previous organization look like?
- Ans.
My day in my previous organization involved analyzing large datasets, creating reports, and presenting findings to stakeholders.
Reviewing and cleaning large datasets to ensure accuracy
Creating visualizations and reports to communicate insights
Collaborating with team members to identify trends and patterns
Presenting findings to stakeholders in meetings or presentations
- Q4. Could you share the technical skills you possess?
- Ans.
I possess strong technical skills in data analysis, including proficiency in programming languages, statistical analysis, and data visualization tools.
Proficient in programming languages such as Python, R, SQL
Skilled in statistical analysis and data modeling techniques
Experience with data visualization tools like Tableau, Power BI
Knowledge of machine learning algorithms and techniques
- Q5. Can you explain what a Pivot Table is?
- Ans.
A Pivot Table is a data summarization tool used in spreadsheet programs to analyze, summarize, and present data in a tabular format.
Pivot tables allow users to reorganize and summarize selected columns and rows of data to obtain desired insights.
Users can easily group and filter data, perform calculations, and create visualizations using pivot tables.
Pivot tables are commonly used in Excel and other spreadsheet program...
- Q6. Find the Highest-paid employee in each department along with their salary and department name.
- Ans.
To find the highest-paid employee in each department, we need to group employees by department and then select the employee with the highest salary in each group.
Group employees by department
Find the employee with the highest salary in each group
Retrieve the employee's name, salary, and department name
Interview Preparation Tips
- SQL
- Excel
- Problem Solving
- PowerBI
- SQL Queries
Be prepared to discuss past challenges and how did you overcome.
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Sutherland Global Services
Anonymous
posted on 11 Aug 2024
I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
(2 Questions)
- Q1. Interesting facts about ourselves
- Q2. Introduced about ourselves
I applied via Naukri.com and was interviewed in Dec 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. What is Company payroll Process
- Ans.
Company payroll process is the system used to manage employee compensation and benefits.
Payroll process includes calculating employee salaries, taxes, and deductions
It also involves managing employee benefits such as health insurance and retirement plans
Payroll process can be done in-house or outsourced to a third-party provider
It is important to ensure compliance with labor laws and regulations
Payroll process can be a
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Datamatics Global Services Interviews By Designations
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Consultant
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