Describe the Technological Challenges Posed by Big Data DATA-SCIENCE-FOUNDATIONS Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   An e-commerce platform's recommendation engine uses clickstream data. During holiday sales, the volume of clicks spikes to 10 times the normal rate, and the data schema changes as new tracking events are added. The batch processing job, designed for average traffic, fails to complete on time and produces incorrect recommendations. What is the primary challenge the system is facing?

   • AValue challenge; the recommendations are not generating enough sales.
   • BVeracity challenge; the clickstream data is of poor quality during the sale.
   • CVariability challenge; the data flow and structure change significantly during peak periods.
   • DComplexity challenge; the relationships between clicks are too complex to analyze.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which of the following is a challenge in distributed computing for Big Data?

   • AEnsuring data consistency across multiple nodes.
   • BEnsuring all nodes are connected via a single network switch.
   • CEnsuring all nodes have identical hardware.
   • DEnsuring data is processed on a single node.
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   What is the primary purpose of data governance in the context of Big Data?

   • ADeleting data that is not used.
   • BEncrypting all data at rest.
   • CEstablishing policies and procedures for data quality, access, and usage.
   • DStoring data in a single database.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Which of the following is a security and privacy concern introduced by Big Data?

   • AData is always anonymized before storage.
   • BData is always stored on-premises.
   • CData is always encrypted by default.
   • DThe risk of data breaches due to the large amount of sensitive data stored.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   A company wants to combine customer data from a CRM system, a billing system, and social media feeds. What is a primary challenge in this integration?

   • AThe data is always clean and consistent.
   • BThe data from each source may have different formats and structures.
   • CThe data is always stored in a single database.
   • DThe data is always in the same format.
   Reveal Solution Discussion Select an answer first