Data Quest

A healthcare startup wants to share anonymized patient data with a research institute to study disease trends. What precaution should they take before sharing the data?

• A) Ensure patient consent is obtained and anonymize the data thoroughly 
  
   

• B) Share the raw data as the institute is trustworthy 

• C) Encrypt the data but skip anonymization 

• D) Remove only names and share the rest of the data  

An e-commerce platform wants to store customer credit card details to enable faster checkouts. Which approach is the most secure? 

• A) Store credit card numbers in plaintext for easy access 
  
  

• B) Use encryption and comply with PCI DSS (Payment Card Industry Data Security Standard) 
   

• C) Store credit card numbers in an Excel sheet on a secure server

• D) Avoid storing credit card details and rely on third-party payment gateways  

  In a large organization, an HR employee requests access to salary details of all employees for analysis. What should be done?  

• A) Grant access without restrictions since they are part of HR 
  
  
  

• B) Limit access to anonymized or aggregated salary data 

• C) Deny access entirely 
  

• D) Allow access only after obtaining approval from senior management

A retail company discovers that customer data has been leaked online due to a security breach. What is the best immediate response?  

• A) Publicly deny the breach and address it internally 
  
   
  

• B) Notify affected customers and relevant authorities, and patch vulnerabilities

• C) Change passwords for all customers

• D) Shut down the website temporarily  

A marketing firm scrapes data from social media platforms to analyze customer sentiment about a product. What potential issue should they consider?  

• A) Violating terms of service of the platform 
   
  
    

• B) Collecting data without user consent

• C) Misinterpreting sentiment due to lack of context

• D) All of the above

A retail chain wants to predict its weekly sales for each store. What kind of data would be most useful for this task?

• A) Customer reviews from the store's website 
  
  
  

• B) Daily foot traffic, past sales data, and promotional campaigns

• C) Weather data in the region of the store 

• D) Employee shift schedules  

A telecom company wants to reduce the number of customers leaving its service. What data would you prioritize to identify at-risk customers?  

• A) Customer demographics and billing history 
  
  
  

• B) Feedback on customer service and network issues 

• C) Competitor pricing 

• D) All of the above  

A city council is planning to reduce traffic congestion in peak hours. What data should be analyzed first?  

• A) The number of public parking spots available 
  
  

• B) GPS data of vehicles and traffic signal timings

• C) Weather conditions in the city 

• D) Types of vehicles registered in the city

An investment firm wants to design an optimal portfolio for its clients. What data is most essential?  

• A) Historical returns and risks of available assets 
  
  
  

• B) Global economic trends 

• C) Age and income of the client 

• D) All of the above  

What does tokenization refer to in natural language processing (NLP) ?

• A. Removing irrelevant words from a text
  
  
  

• B. Breaking text into smaller units such as words or subwords

• C. Assigning numerical values to categorical data

• D. Combining similar words into token