Question 60
Analysts need to read a supported external dataset while retaining ownership in another storage service. What measurement or test best demonstrates that the requirement is satisfied?
Explanation
Correct Answer
External tables expose remote records through SQL abstraction subject to connector and authentication support. The observation “Queries access the intended authorized remote data without materializing an unrelated local copy” directly confirms the chosen action worked for this situation: Analysts need to read a supported external dataset while retaining ownership in another storage service.
Incorrect Answers
Rowstore B-tree indexes suit selective transactional operations better than bulk-column analytical access in this workload. This observation would not establish that the required result occurred for Analysts need to read a supported external dataset while retaining ownership in another storage service. The confirming test is: Queries access the intended authorized remote data without materializing an unrelated local copy.
Modern SQL JSON indexes can accelerate supported path predicates; older SQL versions require alternative indexing strategies. This observation would not establish that the required result occurred for Analysts need to read a supported external dataset while retaining ownership in another storage service. The confirming test is: Queries access the intended authorized remote data without materializing an unrelated local copy.
REGEXP_SUBSTR extracts matching text; REGEXP_LIKE only evaluates whether a match exists. This observation would not establish that the required result occurred for Analysts need to read a supported external dataset while retaining ownership in another storage service. The confirming test is: Queries access the intended authorized remote data without materializing an unrelated local copy.