CMS IT Services Python Developer Trainee Interview Questions and Answers

Q1. What is PHP? Full form of PHP? PHP latest version??
Ans. 
PHP is a server-side scripting language used for web development. Full form is Hypertext Preprocessor. Latest version is PHP 8.0.
• PHP is a popular scripting language for creating dynamic web pages.

• Full form of PHP is Hypertext Preprocessor.

• Latest version of PHP is PHP 8.0, released in November 2020.
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Q2. Different between Mysql vs Nosql?
Ans. 
MySQL is a relational database management system, while NoSQL is a non-relational database management system.
• MySQL is a structured database with tables and rows, while NoSQL is unstructured and can store data in various formats like key-value pairs, documents, graphs, etc.

• MySQL is ACID-compliant, ensuring data integrity, while NoSQL sacrifices some ACID properties for better scalability and performance.

• MySQL is suitabl...read more
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Q1. About React Js ,what are the steps to build website by using React js
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Why are you looking for a change?
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Q1. I don't have any questions
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Q2. I don't want to ask any question
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Q3. Java opps concept
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Q4. Database related questions
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Q5. Web development questions
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Logical reasoning and mental ability and maths and any other

Round duration - 45 minutes
Round difficulty - Medium

I was asked 2 coding questions, questions from my projects and questions related to different java concepts. One question from cloud computing was also asked.

Q1. 
Maximum Subarray Sum Problem Statement
Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.
Explanation...read more
Ans. 
Find the sum of the subarray with the maximum sum among all subarrays in a given array.
• Iterate through the array and keep track of the current sum and maximum sum seen so far.

• If the current sum becomes negative, reset it to 0 as it won't contribute to the maximum sum.

• Return the maximum sum as the result.

• Example: For input arr = [-2, 1, -3, 4, -1], the maximum subarray sum is 4.
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Q2. 
Add Two Numbers as Linked Lists
You are given two singly linked lists, where each list represents a positive number without any leading zeros.
Your task is to add these two numbers and return the sum as ...read more
Ans. 
Add two numbers represented as linked lists and return the sum as a linked list.
• Traverse both linked lists simultaneously while keeping track of carry

• Create a new linked list to store the sum

• Handle cases where one list is longer than the other

• Consider edge cases like carry at the end of addition
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Round duration - 15 minutes
Round difficulty - Easy

It was a normal discussion about the role, the job expectations and about the company culture.