Data | MCQs

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The biggest advantage of Big Data is the fact that it opens up new possibilities for organizations

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The definition of big data is data that contains greater variety, arriving in increasing volumes and with more velocity.

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We cannot apply binary search algorithm to a sorted linked list, since there is no way of indexing the middle element in the list.

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Data redundancy occurs when the same piece of data exists in multiple places, whereas data inconsistency is when the same data exists in different formats in multiple tables

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Data integrity is a concept and process that ensures the accuracy, completeness, consistency, and validity of an organization's data

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For, While and Do are the looping statements of C++

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Explanation

In database design, a composite key is a candidate key that consists of two or more attributes (table columns) that together uniquely identify an entity occurrence (table row).

A compound key is a composite key for which each attribute that makes up the key is a simple (foreign) key in its own right.

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Active Voice: Look at the poll results-do they inspire hope?

Passive Voice: Let the poll results be looked at is hope inspired by them?

Is is the helping of present indefinite tense in passive voice.

Explanation

The concept of the "Data of Ethics" is associated with Herbert Spencer.

Herbert Spencer, a British philosopher and sociologist, discussed the "data of ethics" in his work "The Principles of Ethics."

He explored how ethical principles could be derived from observable social and biological phenomena.