최신 DA0-002 무료덤프 - CompTIA Data+ Exam (2025)

문제1

A data analyst pulls a table similar to the following one:
ID
Type
TypeID
Phone
1
Full Time
Full Time 1
Mobile
2
Part Time
Part Time 2
Work
3
Full Time
Full Time 3
Mobile
Which of the following best explains the data issue with TypeID?

A. Duplication

B. Missing data

C. Redundancy

D. Outlier

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제2

A data analyst is joining two tables with different content and one common field. Which of the following should the analyst do to most efficiently meet this requirement?

A. Create a cluster to facilitate data integration between the tables.

B. Explode both tables to identify unique values and reorder the fields in one table.

C. Match the records of the related columns and merge the tables.

D. Append the values of the matching columns and concatenate the other data fields.

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제3

A data analyst needs to join together a table data source and a web API data source using Python. Which of the following is the best way to accomplish this task?

A. Convert the data from the API and database to a string format and convert them to pandas DataFrames that are then merged together.

B. Convert the data from the API and database to a JSON format and convert them to pandas DataFrames that are then merged together.

C. Convert the data from the API and database to a TXT format and convert them to pandas DataFrames that are then merged together.

D. Convert the data from the API and database to a varchar format and convert them to pandas DataFrames that are then merged together.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제4

A recent server migration applied an update to dataset naming conventions. Multiple users are now reporting stale information in an existing dashboard. The date in the dataset confirms a successful data refresh. Which of the following should a data analyst do first?

A. Filter the data in the dashboard.

B. Confirm the dashboard is pointed to the newest dataset.

C. Escalate user permissions on the server.

D. Verify that the dashboard subscription is not expired.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제5

The sales department wants to include the composition of total sales amounts across all three sales channels in a report. Given the following sample sales table:
Sales channel
Month
Sales (million $)
Digital
January
135
Store
February
145
Online
March
165
Store
April
200
Store
May
125
Online
June
155
Digital
July
120
Online
August
145
Digital
September
160
Which of the following visualizations is the most appropriate?

A. Pivot table

B. Box plot

C. Pie chart

D. KPI card

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제6

Which of the following is the most efficient to use when programming repeatable tasks?

A. Deep learning

B. LLM

C. NLP

D. RPA

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제7

A data analyst is creating a new dataset that involves bringing together the following datasets:
Name
ID
Date of birth
Frank
23525
3/19
Martha
11290
6/13
Ellen
12141
11/4
ID
Address
City
State
23525
1234 Harding
Chicago
IL
11040
935 Terrace Hills
Chino
CA
11290
2 Speedway
Miami
FL
Which of the following would be the output if the data analyst does a FULL JOIN?

A. Name
ID
Date of birth
Address
City
State
Frank
23525
3/19
1234 Harding
Chicago
IL
Martha
11290
6/13
935 Terrace Hills
Chino
CA
Ellen
12141
11/4
2 Speedway
Miami
FL

B. Name
ID
Date of birth
Address
City
State
Frank
23525
3/19
1234 Harding
Chicago
IL
Martha
11290
6/13
935 Terrace Hills
Chino
CA
Ellen
12141
11/4
2 Speedway
Miami
FL

C. Name
ID
Date of birth
Address
City
State
Frank
23525
3/19
1234 Harding
Chicago
IL
Martha
11290
6/13
2 Speedway
Miami
FL
Ellen
12141
11/4
935 Terrace Hills
Chino
CA

D. Name
ID
Date of birth
Address
City
State
Frank
23525
3/19
1234 Harding
Chicago
IL
Martha
11290
6/13
2 Speedway
Miami
FL
Ellen
12141
11/4
11040
935 Terrace Hills
Chino
CA

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제8

A data analyst receives an email from the IT department about renewing the company password, and the analyst follows the password reset link as required. Later in the week, the analyst receives the following notification when running a recurring analysis that connects to the database:
Log-in failed for user '<username>'
Which of the following is most likely the reason for this issue?

A. The analyst did not change the password used to launch the report.

B. The password expiration process locked the account.

C. The company is experiencing issues with password replication.

D. The company changed its database authentication method.

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제9

A data analyst needs to modify a dashboard that was created by another employee. Upon opening the dashboard, the analyst notices that the information is not loading properly. Which of the following should the analyst do to troubleshoot this error?

A. Check that the program is updated to the latest version.

B. Ensure the correct filters are displaying on the dashboard.

C. Review the data layer and data source.

D. Validate that the database is up-to-date.

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제10

A data analyst needs to get an accurate idea of how data components are automated. Which of the following types of documentation should the analyst review first?

A. Data lineage

B. Data flow diagram

C. Data dictionary

D. Data explainability report

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

최신 DA0-002 무료덤프 - CompTIA Data+ Exam (2025)

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