WGU D326 DTMG 3179 Advanced Data Management FA REVIEW QUESTIONS & ANSWERS

WGU D326 DTMG 3179 Advanced Data Management FA REVIEW QUESTIONS & ANSWERS

1. Which of the following is NOT a feature of NoSQL
databases?
 a. Flexible schema
 b. High availability
 c. Scale-out architecture
 d. Strong consistency

 ANS: d. Strong consistency
2. What is the primary advantage of a column-family database
over a traditional relational database?
 a. Enhanced join capabilities
 b. Superior transaction support
 c. Better performance on write-heavy workloads
 d. Simplified query language
 ANS: c. Better performance on write-heavy workloads
3. Which of the following describes the ELT approach in data
processing?