VIP Exclusive
ETL Testing Professional Certification Practice Exam
ETL Testing — No single standardized 'ETL Testing' certification exists from a recognized body; this is an original comprehensive practice set modeled on industry expectations for ETL/data warehouse testing roles, drawing from ISTQB data warehouse testing guidance, Informatica/Talend certification domains, and common enterprise ETL QA interview and assessment frameworks.
52
Questions
90m
Time Limit
70.00%
To Pass
Question 1 of 52👑 VIP
A data warehouse ETL pipeline loads customer records from a source Oracle database into a target fact table each night. After a recent release, the QA team notices the nightly row counts in the target are consistently 12% lower than the source. Which of the following is the MOST likely root cause to investigate first?
Questions 2–52 and full explanations are VIP-exclusive.