Interview Question

If you have 10 TBs of unstructured customer data, and you need to find some clever ways to extract valuable information of it, What do you do? Explain to me in the most technical level that you think. 

Imagine you were hired by a hospital to analyze some of their patient reports. The diagnosis of each report consists of a list of disease IDs, while the body of the report is the symptoms and the medical history of the ...

 What is the computational complexity of finding the most frequent word in a document?

 Find the minimum number of coins required for a given amount with a given set of coins.

Check if a tree is a binary search tree

Calculate the Jaccard similarity between two sets: the size of intersection divided by the size of the union.

Given a collection of already tokenized texts, calculate the IDF (Inverse document frequency of each token)

Review of performance appraisal, labour turnover rates, planning of incentives, and training programs are the examples of which of the following? (A) Statistics in production (B) Statistics in marketing (C) Statistics in finance (D) Statistics in personnel managemen

 What is the scale applied in statistics, which imparts a difference of magnitude and proportions, is considered as? (A) Exponential scale (B) Goodness scale (C) Ratio scale (D) Satisfactory scale

Which statement upgrades the database directory name encoding? a) ALTER DATABASE b) ALTER SERVER c) ALTER EVENT d) ALTER FUNCTION d) None of the mentioned