Analyze the concept of OLAP (Online Analytical Processing) and its significance in data warehousing. Describe the differences between MOLAP, ROLAP, and HOLAP. Discuss the advantages and disadvantages of each type with respect to data analysis and querying performance.
See Answer →Explain the concept of Data Warehousing architecture. Compare and contrast the different types of architectures such as Single-tier, Two-tier, and Three-tier. Provide examples of scenarios where each architecture might be most beneficial.
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Discuss the role of ETL (Extract, Transform, Load) processes in data warehousing. Provide a detailed explanation of each phase and its importance. Illustrate your answer with examples of common tools used in ETL and the challenges that may arise during these processes.
See Answer →Write a program to create simple CRUD (Create, Read, Update, and Delete) application using Spring Boot and Hibernate for Online Registration and Fee Payment for a Workshop on “Web Technologies” to be organized by an IT Training Orgenization . Make provisions for security management in the program. Make necessary assumptions required.
See Answer →Write a program using JSP and JDBC to support editing (address modification, mobile number/ email id update) of MCA 1st Semester students of IGNOU. The program should take enrollment number or registered mobile number as input. Make necessary assumptions required.
See Answer →Draw Sequence Diagram for Online Shopping from an E-commerce Shopping Portal. Make necessary assumptions required.
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Draw State Chart Diagram for Online Re-registration Fee Payment for IGNOU MCA 3 rd Semester. Make necessary assumptions required.
See Answer →Draw Deployment Diagram for Online Banking System. Make necessary assumptions required
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Draw Class Diagram for Online Examination System. Make necessary assumptions required.
See Answer →Implement simple K-Means Algorithm to demonstrate the clustering rule on the following datasets:
(a) iris.arff
(b) student.arff
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Setup 4 nodes , two TCP client and server pair and two UDP client and server pair. Send packets to respective clients from both the servers. Monitor the traffic for both the pair and plot the number of bytes received. Make necessary assumptions.
See Answer →Compute the Linear Discriminant projection for the following two-dimensional dataset
and
Consider the two-dimensional patterns (2, 2), (3, 6), (4, 4), (5, 6), (6, 7), (7, 8), (8, 8) and (9, 10). Using the PCA Algorithm, calculate the primary component.
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Write Back Propagation algorithm, and showcase its execution on a neural network of your choice (make suitable assumptions if any)
See Answer →Consider the following set of data points (Year of experience salary). Find the 2nd order polynomialand using polynomial regression determine the salary w
| Years of Experience (X) | Salary (Y) in Dollar |
| 1 | 50,000 |
| 2 | 55,000 |
| 3 | 65,000 |
| 4 | 80,000 |
| 5 | 110,000 |
| 6 | 150,000 |
| 7 | 200,000 |
hen year of experience is
Using the following training dataset, apply Naïve Bayes classification algorithm to find the class of an unknown sample X = < Rainy, Cool, High, False >
| S. No | Outlook | Temperature | Humidity | Windy | Play Golf/Class |
| 0 | Rainy | Hot | High | False | No |
| 1 | Rainy | Hot | High | True | No |
| 2 | Overcast | Hot | High | False | Yes |
| 3 | Sunny | Mild | High | False | Yes |
| 4 | Sunny | Cool | Normal | False | Yes |
| 5 | Sunny | Cool | Normal | True | No |
| 6 | Overcast | Cool | Normal | True | Yes |
| 7 | Rainy | Mild | High | False | No |
| 8 | Rainy | Cool | Normal | False | Yes |
| 9 | Sunny | Mild | Normal | False | Yes |
| 10 | Rainy | Mild | Normal | True | Yes |
| 11 | Overcast | Mild | High | True | Yes |
| 12 | Overcast | Hot | Normal | False | Yes |
| 13 | Sunny | Mild | High | True | Yes |
Explain K-Nearest Neighbour (K-NN) classification algorithm with the help of a suitable example
See Answer →In a class, three students tossed one coins (one each) for 3 times. Write down all the possible outcomes which can be obtained in this experiment. What is the probability of getting 2 or more than 2 heads at a time? Also find the probability of getting three tails at a time.
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