CompTIAData+
Domain 2Objective 1
Use Data Acquisition Methods DA0-001 Practice Questions (Page 7)
Part of the Data acquisition and preparation domain, which accounts for 22% of the DA0-001 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–13 in this domain), expect 3–4 from this objective — we provide 35 practice questions to prepare you well beyond it. (estimate)
35questions here
7free pages
10concepts
22%of the exam
Questions 31–35
- 31
Which data integration technique involves copying data from a source system to a target system and then keeping the target updated with changes from the source?
Select an answer first - 32
Which data transformation technique is used to convert categorical values into numerical values so that they can be used in machine learning algorithms?
Select an answer first - 33
A dataset contains dates in the format 'MM/DD/YYYY' but the target system expects 'YYYY-MM-DD'. Which data transformation technique should be applied?
Select an answer first - 34
In data mapping, what is the purpose of creating a mapping document?
Select an answer first - 35
Which data cleansing technique is used to handle missing values in a dataset?
Select an answer first
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