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DA0-001 β€” questions

Page 15 of 15 Β· 294 total questions.

Topic 1 Β· Question 283

An analyst is developing a form to collect data from clients. Which of the following techniques should the analyst use to best ensure data integrity?

  • AAdding rules for data validation (correct answer)
  • BMaking all fields required
  • CEnabling an β€˜other’ option for each question
  • DEnabling text fields throughout the entire form
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Adding rules for data validation

Topic 1 Β· Question 284

A reporting analyst needs to create a report that refreshes automatically and is accessible to the entire sales organization. Which of the following tools is the most appropriate to use for this task?

  • AR
  • BExcel
  • CTableau (correct answer)
  • DPython
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Tableau

Topic 1 Β· Question 285

Which of the following data integration concepts should be used if only new data is being added to a table since the previous load?

  • AExtract, transform, load
  • BExtract, load, transform
  • CDelta load (correct answer)
  • DApplication programming interface
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Delta load

Topic 1 Β· Question 286

A customer survey reveals 90% positive feedback. Which of the following statistical methods would be best to utilize to determine the reliability of a data set and predict how a larger sample of customers over the same time period might respond?

  • ACalculate a high variance on survey responses.
  • BCalculate the maximum range of the survey responses.
  • CCalculate a low standard deviation on survey responses. (correct answer)
  • DRemove any data more than 1 standard deviation from the mean.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Calculate a low standard deviation on survey responses.

Topic 1 Β· Question 287

Which of the following statistical measures is the most suitable and simple measure of the strength and direction of the linear relationship between price and volume?

  • AStandard deviation
  • BInterception
  • CCorrelation (correct answer)
  • DCovariance
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Correlation

Topic 1 Β· Question 288

An analyst is recording the following financial transaction data with a vendor: 59.99, 49.50, 70.49 Which of the following data types is the best way to record this information?

  • ADiscrete
  • BContinuous
  • CCurrency (correct answer)
  • DNumeric
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Currency

Topic 1 Β· Question 289

A data analyst is creating a high-level report for the Chief Executive Officer. Which of the following data would most likely be included in the report?

  • AEmployee names
  • BProduct barcode numbers
  • CVersion number
  • DYear-to-date sales numbers (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Year-to-date sales numbers

Topic 1 Β· Question 290

Which of the following is a reason for sampling?

  • AData needs to be collected without interference.
  • BThe data extraction process needs to be automated.
  • CMany individuals need to be asked a series of questions.
  • DConclusions need to be drawn from a large population. (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Conclusions need to be drawn from a large population.

Topic 1 Β· Question 291

A data analyst is creating a dashboard to monitor and manage processes on a daily, weekly, and quarterly basis. Which of the following types of dashboards is the best for this purpose?

  • AStrategic
  • BOperational
  • CAnalytical
  • DTactical (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Tactical

Topic 1 Β· Question 292

Which of the following is a flat file data format?

  • AXML
  • BCSV (correct answer)
  • CJSON
  • DHTML
Reveal answer & explanation
Correct answer: B

The correct answer is B. Option B: CSV

Topic 1 Β· Question 293

Which of the following refers to the process of quantifying data?

  • ADecoding
  • BCoding
  • CStructuring
  • DEnumeration (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Enumeration

Topic 1 Β· Question 294

Which of the following query optimization techniques is the best way for an analyst to make the query execute faster?

  • AIndexing (correct answer)
  • BParametrizing
  • CWindowing
  • DCaching
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Indexing

Topic 1 Β· Question 295

A health care data analyst is reviewing a data set containing patient blood pressure measurements taken over the past year. The analyst notices that some of the values for blood pressure seem unusually high, which might indicate data entry errors or outliers. Which of the following data quality dimensions should be the primary focus to address this issue?

  • AData accuracy (correct answer)
  • BData integrity
  • CData completeness
  • DData consistency
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Data accuracy

Topic 1 Β· Question 296

Which of the following would the value "January 15, 23" be classified as?

  • ANumeric
  • BAlphanumeric
  • CText (correct answer)
  • DOrdinal
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Text

Showing questions 281–294 of 294 Β· Page 15 of 15