हडूप (Hadoop) में, कौन सा घटक/प्रोग्राम मुख्य प्रवेश बिंदु के रूप में कार्य करता है जो मैपरिड्यूस जॉब निष्पादन को कॉन्फ़िगर और संचालित करता है?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Modern Big Data architectures necessitate horizontal scaling paradigms rather than traditional vertical scaling. Reason R: Vertically scaling a single server for petabyte-scale workloads is constrained by physical hardware limitations and becomes prohibitively expensive. In the light of the above statements, choose the most appropriate answer from the options given below:

Arrange the following categories of Big Data in ascending order based on their estimated percentage share of total global data volume: A. Unstructured Data B. Semi-Structured Data C. Structured Data Choose the correct answer from the options given below: