Question 1

Explore JustCloud file storage solutions and cloud storage on AWS. Use only the trial versions.

Accepted Answer

Exploring cloud storage solutions using trial versions provides practical insights into their functionalities and use cases, as outlined in cloud computing lab practices. This exercise focuses on JustCloud for personal file backup and AWS S3 for scalable object storage.

JustCloud typically offers a limited-duration free trial, often for 14-30 days with a restricted storage capacity, such as 1GB or 5GB. Its primary function is user-friendly personal cloud backup, allowing users to automatically

Question 2

Use Google App Engine to write a program to multiply two matrices. Deploy it on the Google cloud.

Accepted Answer

Google App Engine (GAE) provides a Platform as a Service (PaaS) environment suitable for deploying scalable web applications, including Python programs like matrix multiplication. It abstracts infrastructure management, allowing developers to focus on code.

To implement matrix multiplication, a Python program would define a function that takes two matrices as input and returns their product. For a web application, this logic is typically embedded within a web framework like Flask or FastAPI. Th

Question 3

The height of 50 students of class X was measured in centimeters. The following table shows this data. Perform the tasks (i) to (iv) using R programming.

Accepted Answer

This response addresses the analysis of student height data using R programming, a fundamental skill in data science and cloud-based analytical environments as taught in MCSL-229. We will perform basic descriptive statistics, frequency analysis, and outlier detection. Since the raw height data was not provided in the question, a sample dataset of 50 student heights, realistically distributed around an average of 165 cm, has been simulated for demonstration purposes. All R code snippets are provi

Question 4

An organisation collected the following data of its employees: “years in employment” and “employee's salary". Use R programming to fit a linear regression line to predict the effect of years in employment on the employee's salary. Also, predict the salary of an employee who is employed for 11 years.

Accepted Answer

Exploring cloud storage solutions using trial versions provides practical insights into their functionalities and use cases, as outlined in cloud computing lab practices. This exercise focuses on JustCloud for personal file backup and AWS S3 for scalable object storage.

JustCloud typically offers a limited-duration free trial, often for 14-30 days with a restricted storage capacity, such as 1GB or 5GB. Its primary function is user-friendly personal cloud backup, allowing users to automatically

MCSL-229 Solved Assignment — July 2025

Cloud and Data Science Lab | IGNOU Master of Computer Applications (MCA)

MCSL-229—July 2025

Cloud and Data Science Lab

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MCSL-229 Assignment Questions — July 2025

QQ2. Explore JustCloud file storage solutions and cloud storage on AWS. Use only the trial versions.

QQ3. Use Google App Engine to write a program to multiply two matrices. Deploy it on the Google cloud.

QQ1. The height of 50 students of class X was measured in centimeters. The following table shows this data. Perform the tasks (i) to (iv) using R programming.