Question
a.
Full refreshes do not erase existing data, while initial loads replace existing data.
b.
Full refreshes and initial loads use the same data application modes.
c.
Full refreshes add incoming data to existing data, while initial loads load the whole database from scratch.
d.
Full refreshes do not apply data, while initial loads apply data.
Posted under Data Warehousing and OLAP
Engage with the Community - Add Your Comment
Confused About the Answer? Ask for Details Here.
Know the Explanation? Add it Here.
Q. How are full refreshes different from initial loads in terms of data application modes?
Similar Questions
Discover Related MCQs
Q. What are the two methods for maintaining a data warehouse and keeping it up to date after the initial load?
View solution
Q. When might a full refresh be a better option than an update for keeping a data warehouse up to date?
View solution
Q. What is the primary reason for converting production system keys to system-generated keys in the data warehouse?
View solution
Q. What is the key of the fact table in a data warehouse based on?
View solution
Q. What is the primary function of ETL (Extraction, Transformation, and Loading) in a data warehouse?
View solution
Q. Why is data extraction for a data warehouse an ongoing function carried out at very frequent intervals?
View solution
Q. What is the key difference between data loading in a data warehouse and data loading for a new operational system?
View solution
Q. What role do vendor tools play in the ETL process for data warehousing?
View solution
Q. What are the three main components of the ETL process?
View solution
Q. Why is data transformation in a data warehouse more complex than conversion functions for operational systems?
View solution
Q. When might a full refresh be used for data loading in a data warehouse?
View solution
Q. Why is ongoing data extraction required in a data warehouse?
View solution
Q. What is the primary role of data transformation in a data warehouse?
View solution
Q. What is the ETL process, and why is it critical for data warehousing?
View solution
Q. Which of the following ETL tool categories offers maximum flexibility for data transformations, full loads, and incremental loads?
View solution
Q. What is the primary source of data captured through replication in ETL tools?
View solution
Q. What is the primary role of code generators in ETL?
View solution
Q. Which ETL tool option is offered by several DBMS vendors at little or no extra cost, making it attractive to many organizations?
View solution
Q. What are some of the common features or capabilities provided by ETL tools?
View solution
Q. Which ETL tool category generates program code for data extraction and transformation and allows users to add custom code for special conditions?
View solution
Suggested Topics
Are you eager to expand your knowledge beyond Data Warehousing and OLAP? We've curated a selection of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!
