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CompTIA Data+ Certification Exam Sample Questions (Q283-Q288):

NEW QUESTION # 283
You only have one opportunity to answer each question on the Data+ exam.

A. True.
B. False.

Answer: B

NEW QUESTION # 284
A data analyst for a media company needs to determine the most popular movie genre. Given the table below:

Which of the following must be done to the Genre column before this task can be completed?

A. Append
B. Concatenate
C. Delimit
D. Merge

Answer: C

Explanation:
The action that must be done to the Genre column before this task can be completed is delimit. Delimit is a process of separating or splitting a string of text into multiple parts based on a delimiter, which is a character or a sequence of characters that marks the boundary between the parts. For example, a comma (,) or a semicolon (;) can be used as a delimiter. In this case, the Genre column contains multiple genres for each movie, separated by commas. To determine the most popular movie genre, the data analyst needs to delimit the Genre column by commas, so that each genre can be counted and compared separately. The other options are not relevant for this task, as they are related to combining or joining strings or tables, not separating them. Append is a process of adding or attaching one string or table to the end of another string or table. Merge is a process of combining or joining two or more tables into one table based on a common column or key. Concatenate is a process of joining or linking two or more strings together into one string. Reference: [How to Split Text in Excel - Exceljet]

NEW QUESTION # 285
Which of the following actions should be taken when transmitting data to mitigate the chance of a data leak occurring? (Choose two.)

A. Fata removal
B. Data encryption
C. Data processing
D. Data Reporting
E. Data identification
F. Data masking

Answer: B,F

Explanation:
Explanation
Data encryption and data masking are two actions that can be taken when transmitting data to mitigate the chance of a data leak occurring. Data encryption means transforming data into an unreadable format that can only be decrypted with a key. Data masking means hiding or replacing sensitive data with fictitious or anonymized data. Both methods protect the confidentiality and integrity of the data in transit. References:
CompTIA Data+ Certification Exam Objectives, page 13

NEW QUESTION # 286
What analytics suite is offered by Microsoft and directly integrates with SQL Server Databases?

A. Dataroma.
B. Domo.
C. Power BI.
D. Qlik.

Answer: C

Explanation:
Power BI is a collection of software services, apps, and connectors that work together to turn your unrelated sources of data into coherent, visually immersive, and interactive insights. Your data may be an Excel spreadsheet, or a collection of cloud-based and on-premises hybrid data warehouses.

NEW QUESTION # 287
A data analyst needs to present the results of an online marketing campaign to the marketing manager. The manager wants to see the most important KPIs and measure the return on marketing investment. Which of the following should the data analyst use to BEST communicate this information to the manager?

A. A summary with statistics, conclusions, and recommendations from the data analyst
B. A spreadsheet of the raw data from all marketing campaigns and channels
C. A sell-service dashboard that allows the manager to look at the company's annual budget performance
D. A real-time monitor that allows the manager to view performance the day the campaign was launched

Answer: A

Explanation:
Explanation
The option that the data analyst should use to best communicate the information to the manager is a summary with statistics, conclusions, and recommendations from the data analyst. A summary is a concise and clear way of presenting the main findings and insights from the data analysis report. A summary should include relevant statistics that support the conclusions and recommendations from the data analyst. A summary should also highlight the most important KPIs and measure the return on marketing investment in relation to the objectives of the online marketing campaign. The other options are not as effective as using a summary to communicate the information to the manager, as they either provide too much or too little information or do not address the manager's needs or expectations. A real-time monitor may provide too much information that can be overwhelming or distracting for the manager who wants to see only the most important KPIs and measure the return on marketing investment. A self-service dashboard may provide too little information that can be insufficient or unclear for the manager who wants to see some guidance and interpretation from the data analyst. A spreadsheet of raw data may provide irrelevant or inaccurate information that can be confusing or misleading for the manager who wants to see some analysis and insights from the data analyst. Reference:
[How to Write an Executive Summary for Your Data Analysis Report - Towards Data Science]

NEW QUESTION # 288
......

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