P.S. Fast2test在Google Drive上分享了免費的、最新的DA0-001考試題庫：https://drive.google.com/open?id=1hOynII8M2PteIybIWSr0d6FwQOaaOi92
為了讓生活過得更好些，參加 DA0-001 認證考試獲取 CompTIA 認證是每位選擇IT行業的工作人員必經之路。只有獲取了公司要求的這張證書既可獲得加薪和升遷的機會。而 CompTIA 在考古題考試方面的雄厚實力源於業界企業的大力支持。數千家公司均依託 CompTIA 標準來提供一個可靠的員工業績評估。此外，數十家擁有自己考古題專案的公司也非常信賴 CompTIA 的 DA0-001 考古題，以確保員工具備扎實的技能功底。此舉可以為公司節省大量的時間和開銷。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Mining | 25% | - Explain common techniques for data manipulation and optimization - Identify common reasons for cleansing and profiling datasets - Explain data acquisition concepts - Given a scenario, execute techniques for data manipulation |
| Topic 2: Visualization | 23% | - Given a scenario, use appropriate methods for dashboard development - Given a scenario, apply the appropriate type of visualization - Compare and contrast types of reports - Given a scenario, translate business requirements to support data-driven decisions - Explain important aspects of a report that tell a data story |
| Topic 3: Data Concepts and Environments | 15% | - Identify basic concepts of data schemas and dimensions - Compare and contrast different data types - Compare and contrast common data structures and file formats |
| Topic 4: Data Governance, Quality, and Controls | 14% | - Summarize important data governance concepts - Explain key aspects of data quality - Compare and contrast types of data controls |
| Topic 5: Data Analysis | 23% | - Summarize types of analysis and key analysis techniques - Explain the purpose of inferential statistical methods - Given a scenario, apply the appropriate descriptive statistical methods |
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問題 #35
Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?
答案：D
解題說明：
The invalid data type is the best description for the issue in which character values are mixed with integer values in a data set column. Invalid data type means that the data does not match the expected or required format or structure for a given variable or attribute. For example, if a column is supposed to store numerical values, but some rows contain text values, then those rows have an invalid data type. References: CompTIA Data+ Certification Exam Objectives, page 10
問題 #36
A report is scheduled to run and be distributed at the end of business each day. On Mondays, one of the recipients opens the previous week's reports and combines them to calculate the weekly totals and projections for the coming week. This is a tedious process, and the recipient asks an analyst for help. Which of the following should the analyst recommend?
答案：C
問題 #37
A data set was recorded using multimedia technology. Which of the following is a necessary step on the way to interpretation?
答案：B
解題說明：
The correct answer is B. Transcription.
Transcription is a necessary step on the way to interpretation when a data set was recorded using multimedia technology. Multimedia technology refers to the use of various forms of media, such as audio, video, images, and text, to capture and present information1 Transcription is the process of converting multimedia data into written or textual form, which can then be analyzed using various methods and tools2 Transcription can help to make the data more accessible, searchable, and manageable, as well as to preserve the data for future use.
Structural equation modeling is not correct, because it is a statistical technique that tests the causal relationships between multiple variables using observed and latent variables. Structural equation modeling is not a necessary step on the way to interpretation, but rather an optional method that can be applied to certain types of data.
Sequential analysis is not correct, because it is a method of analyzing the order and timing of events or behaviors in a data set. Sequential analysis is not a necessary step on the way to interpretation, but rather an optional method that can be applied to certain types of data.
Sampling is not correct, because it is the process of selecting a subset of data from a larger population for analysis. Sampling is not a necessary step on the way to interpretation, but rather a preliminary step that can be done before collecting or analyzing the data.
問題 #38
A data analyst is working with a team to create a dashboard for a client who requires on-demand access.
Which of the following is the best delivery method to support the clients' requirement?
答案：B
解題說明：
Explanation
The best delivery method to support the client's requirement is C. Subscription.
Short explanation: A subscription is a delivery method that allows the client to access the dashboard on-demand, whenever they need it. A subscription can be set up by the data analyst or the client themselves, and it can be configured to send an email notification when the dashboard is updated or refreshed. A subscription also allows the client to view the dashboard online or download it as a file format of their choice12
A: Email is not the best delivery method because it does not allow the client to access the dashboard on-demand. Email deliveries are sent at a fixed time or frequency, and they may not reflect the latest data or changes in the dashboard. Email deliveries also have limitations on the file size and format of the dashboard attachments1
B: Scheduled is not the best delivery method because it does not allow the client to access the dashboard on-demand. Scheduled deliveries are similar to email deliveries, except that they are triggered by a specific event or condition, such as a data update or a threshold value. Scheduled deliveries also have the same limitations as email deliveries on the file size and format of the dashboard attachments1
D: Static is not the best delivery method because it does not allow the client to access the dashboard on-demand. Static deliveries are one-time deliveries that are manually generated by the data analyst or the client. Static deliveries do not update or refresh automatically, and they may become outdated or irrelevant over time. Static deliveries also have limitations on the file size and format of the dashboard files3
問題 #39
A gambler thinks that a coin is fair and is equally likely to turn up heads or tails when the coin is flipped.
Which of the following tests should the gambler use to fest this hypothesis?
答案：D
問題 #40
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DA0-001測試題庫: https://tw.fast2test.com/DA0-001-premium-file.html
從Google Drive中免費下載最新的Fast2test DA0-001 PDF版考試題庫：https://drive.google.com/open?id=1hOynII8M2PteIybIWSr0d6FwQOaaOi92