Datamatics Group Python Developer Interview Questions and Answers

Round duration - 2 hours
Round difficulty - Medium

In the 1st round 
Aptitude
Reasoning
English
Automata fix( code debug) 
Timing in morning
Environment is good
Interviewer was very cool and interactive

Q1. 
Encode the Message Problem Statement
Given a text message, your task is to return the Run-length Encoding of the given message.
Run-length encoding is a fast and simple method of encoding strings, repres...read more
Ans. 
Implement a function to encode a text message using run-length encoding.
• Iterate through the message and count consecutive characters

• Append the character and its count to the encoded message

• Handle edge cases like single characters or empty message
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Round duration - 30 minutes
Round difficulty - Medium

This is interview round 
Ques from basic electronics
C language

Q1. 
Print Name and Age Problem Statement
Create a class named Person with a string variable 'name' and an integer variable 'age', such that these variables are not accessible outside the class. Implement a me...read more
Ans. 
Create a class Person with private variables name and age, and methods to set and get their values.
• Create a class Person with private variables 'name' and 'age'.

• Implement a method setValue to set the variables' values.

• Implement a method getValue to print the variables' values.

• Ensure the name is a non-empty string and the age is a non-negative integer.

• Encapsulate the data and provide a clear interface for setting and ge...read more
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HTML

Aptitude and resume shortlist and HTML

Q1. Java Collection, OOPS, Seralization
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Q1. Java OOPS, Collection, threading, SQL
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Q1. Nothing specific, Salary Negotiations.
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If you were to consult an automobile firm to upgrade their in-vehicle, what changes would you suggest? Note that the firm primarily manufactures lowe end cars

Ice cream cart owner wants to increase profitability with an increase in the price of milk. How would you suggest that the owner maintain/ increase his profitability

Q1. Tell me something about yourself
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Q2. Why cognizant consulting
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