CompTIA DA0-001 CompTIA Data+ Certification Online Training
CompTIA DA0-001 Online Training
The questions for DA0-001 were last updated at Jan 29,2025.
- Exam Code: DA0-001
- Exam Name: CompTIA Data+ Certification
- Certification Provider: CompTIA
- Latest update: Jan 29,2025
Which of the following contains alphanumeric values?
- A . 10.1Ε²
- B . 13.6
- C . 1347
- D . A3J7
A junior web developer is developing a new application where users can upload short videos. The first task is to create a homepage that shows the headline "Upload Your Short Videos" and a clickable button that says "upload now".
Which of the following HTML commands would help the developer to complete the task successfully?
- A . < span >Upload Your Short Videos< /span >< button >upload now< /button >
- B . < p >Upload Your Short Videos< /p >< p >upload now< /p >
- C . < hl >Upload Your Short Videos< /h1 >< button >upload now< /button >
- D . < hl >Upload Your Short Videos< /h1 >< hl >upload now< /h1 >
A web developer wants to ensure that malicious users can’t type SQL statements when they asked for input, like their username/userid.
Which of the following query optimization techniques would effectively prevent SQL Injection attacks?
- A . Indexing.
- B . Subset of records.
- C . Temporary table in the query set.
- D . Parametrization.
Consider the following dataset which contains information about houses that are for sale:
Which of the following string manipulation commands will combine the address and region name columns to create a full address?
full_address————————- 85 Turner St, Northern Metropolitan 25 Bloomburg St, Northern
Metropolitan 5 Charles St, Northern Metropolitan 40 Federation La, Northern Metropolitan 55a Park St, Northern Metropolitan
- A . SELECT CONCAT(address, ‘ , ‘ , regionname) AS full_address FROM melb LIMIT 5;
- B . SELECT CONCAT(address, ‘-‘ , regionname) AS full_address FROM melb LIMIT 5;
- C . SELECT CONCAT(regionname, ‘ , ‘ , address) AS full_address FROM melb LIMIT 5
- D . SELECT CONCAT(regionname, ‘-‘ , address) AS full_address FROM melb LIMIT 5;
The ACME Corporation hired an analyst to detect data quality issues in their Excel documents.
Which of the following are the most common issues? (Select TWO)
- A . Apostrophe.
- B . Commas.
- C . Symbols.
- D . Duplicates.
- E . Misspellings.
The ACME Corporation hired an analyst to detect data quality issues in their Excel documents.
Which of the following are the most common issues? (Select TWO)
- A . Apostrophe.
- B . Commas.
- C . Symbols.
- D . Duplicates.
- E . Misspellings.
The ACME Corporation hired an analyst to detect data quality issues in their Excel documents.
Which of the following are the most common issues? (Select TWO)
- A . Apostrophe.
- B . Commas.
- C . Symbols.
- D . Duplicates.
- E . Misspellings.
Consider this dataset showing the retirement age of 11 people, in whole years:
54, 54, 54, 55, 56, 57, 57, 58, 58, 60, 60
This tables show a simple frequency distribution of the retirement age data.
- A . 56
- B . 55
- C . 57
- D . 54
Which of the following value is the measure of dispersion "range" between the scores of ten students in a test.
The scores of ten students in a test are 17, 23, 30, 36, 45, 51, 58, 66, 72, 77.
- A . 90
- B . 60
- C . 70
- D . 80
A data scientist wants to see which products make the most money and which products attract the most customer purchasing interest in their company.
Which of the following data manipulation techniques would he use to obtain this information?
- A . Data append
- B . Data blending
- C . Normalize data
- D . Data merge
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