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CompTIA Data+ Certification Exam 認定 DA0-001 試験問題 (Q55-Q60):

質問 # 55
Which of the following is the best description of the term "data governance"?

A. Data governance is the process of analyzing, manipulating, and reporting data in an organization.
B. Data governance is the availability, usability, integrity, and security of data in an enterprise.
C. Data governance is the policy that protects against data breaches by cybercriminals.
D. Data governance governs the development of a data visualization dashboard in an organization.

正解：B

解説：
Data governance refers to the overarching management of data's availability, usability, integrity, and security within an organization. It involves setting policies and standards that govern data usage, determining data ownership, implementing data security measures, and ensuring that data is accessible for business insights while maintaining its quality. The goal of data governance is to ensure that data is consistent, trustworthy, and not misused, supporting compliance with data privacy regulations and enabling effective data analytics to optimize operations and drive business decision-making.
References:
* Understanding Data Governance and Its Importance1.
* The Role of Data Governance in Data Management2.
* Defining Data Governance and Its Business Value3.

質問 # 56
A development company is constructing a new unit in its apartment complex. The complex has the following floor plans:

Using the average cost per square foot of the original floor plans, which of the following should be the price of the Rose unit?

A. $705,200
B. $702,500
C. $640,900
D. $690,000

正解：A

解説：
This is because the price of the Rose unit can be estimated using the average cost per square foot of the original floor plans, which are Jasmine, Orchid, Azalea, and Tulip. To find the average cost per square foot of the original floor plans, we can use the following formula:

Plugging in the values from the original floor plans, we get:

To find the price of the Rose unit, we can use the following formula:

Plugging in the values from the Rose unit, we get:

Therefore, the price of the Rose unit should be $705,200, using the average cost per square foot of the original floor plans.

質問 # 57
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?

A. Calculate the maximum range of the survey responses.
B. Calculate a low standard deviation on survey responses.
C. Calculate a high variance on survey responses.
D. Remove any data more than 4 standard deviation from the mean.

正解：B

解説：
A low standard deviation in survey responses indicates that the data points tend to be close to the mean, suggesting a high level of consistency among the responses. This consistency is crucial for determining the reliability of the data set and predicting future outcomes. If the standard deviation is low, it means that the positive feedback is not only high but also consistent, making it a reliable indicator of customer satisfaction and a good predictor of how a larger sample might respond.
References: The concept of using standard deviation to assess data reliability is a standard practice in statistics and data analysis123.

質問 # 58
A sales analyst needs to report how the sales team is performing to target. Which of the following files will be important in determining 2019 performance attainment?

A. 2018 goal data
B. 2019 goal data
C. 019 commission plan
D. 2018 actual revenue

正解：B

解説：
Answer C) 2019 goal data
To report how the sales team is performing to target, the sales analyst needs to compare the actual sales revenue with the expected or planned sales revenue for the same period. The 2019 goal data is the file that contains the expected or planned sales revenue for the year 2019, which is the target that the sales team is aiming to achieve. By comparing the 2019 goal data with the 2019 actual revenue, the sales analyst can calculate the performance attainment, which is the percentage of the goal that was met by the sales team.
Option A is incorrect, as 2018 goal data is not relevant for determining 2019 performance attainment. The 2018 goal data contains the expected or planned sales revenue for the year 2018, which is not the target that the sales team is aiming to achieve in 2019.
Option B is incorrect, as 2018 actual revenue is not relevant for determining 2019 performance attainment. The 2018 actual revenue contains the actual sales revenue for the year 2018, which is not comparable with the 2019 goal data or the 2019 actual revenue.
Option D is incorrect, as 2019 commission plan is not relevant for determining 2019 performance attainment. The 2019 commission plan contains the rules and rates for calculating and paying commissions to the sales team based on their performance attainment, but it does not contain the expected or planned sales revenue for the year 2019.

質問 # 59
Which of the following would be considered non-personally identifiable information?

A. Customer's name
B. Cell phone device name
C. Government ID number
D. Telephone number

正解：B

解説：
Explanation
Non-personally identifiable information (non-PII) is any data that cannot be used to identify, contact, or locate a specific individual, either alone or combined with other sources. Non-PII can include aggregated statistics, anonymous data, device identifiers, IP addresses, cookies, and other types of information that do not reveal the identity or location of a person. Cell phone device name is an example of non-PII, as it does not reveal any personal information about the owner or user of the device. Therefore, the correct answer is A. References:
What is Non-Personally Identifiable Information (Non-PII)? | Definition and Examples, What is Personally Identifiable Information (PII)? | Definition and Examples

質問 # 60
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人々は自分が将来何か成績を作るようにずっと努力しています。IT業界でのあなたも同じでしょう。自分の能力を高めるために、DA0-001試験に参加する必要があります。DA0-001試験に合格したら、あなたがより良く就職し輝かしい未来を持っています。この試験が非常に困難ですが、実は試験を準備するとき、もっと楽になることができます。我々のDA0-001問題集を入手するのはあなたの進めるべきの第一歩です。

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私たちに知られているように、意志があるところには方法があります、DA0-001の学習教材は、非常にシンプルで理解しやすい言語を使用して、すべての人が学習して理解できるようにします。

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