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Prepare DA0-001 Exam Questions [2023] Recently Updated Questions
Things You Should Know about the CompTIA DA0-001 Exam
CompTIA Data+ is a certification that validates your understanding of the fundamentals of computer data storage and management. It's a foundational certification that can be used to secure entry-level positions in various fields, such as IT, business intelligence, and application development.
CompTIA Data+ is not the only certification available for this subject matter. The CompTIA A+ and Microsoft Certified Solutions Associate exams also cover similar material. However, unlike those exams, CompTIA D+ does not have a pre-requisite requirement for passing it. If you already have a working knowledge of networking, operating systems (OS), and some basic computer concepts, you can prepare for this exam without any prior experience in these areas. CompTIA DA0-001 exam dumps will help you to clear the concepts.
CompTIA Data+ is designed to ensure that candidates have a thorough understanding of how data storage works and the basic concepts involved in managing it. This includes an understanding of how information is stored electronically on hard drives, solid-state drives (SSDs), magnetic tapes, optical discs and other storage devices; along with how data can be retrieved from these devices using appropriate software tools.
What are the advantages of obtaining CompTIA DA0-001 Certification
CompTIA Data+ is the most popular certification in the IT industry, and it is a great way to enter the field of IT. The CompTIA Data+ certification covers all aspects of data management, including how to manage data and its security and how to work with large volumes of data.
There are many advantages to obtaining this certification. It will give you a solid foundation in the field of IT and allow you to start working right away. Many companies prefer hiring people who have this certification because they know that they can trust them and they can trust their abilities. CompTIA DA0-001 exam dumps will enhance you skills.
If you are interested in pursuing a career in IT or if you want to learn more about what this industry has to offer, then CompTiA Data+ Certification is definitely something that you should consider taking.
There are many benefits that come from obtaining this certification and I am going to give some examples below:
It gives you a solid foundation for your career as an IT professional.
It helps improve your communication skills by learning how to talk about technical topics in an understandable way.
It allows you to meet new people, which will help you learn more about other people's personalities and
NEW QUESTION 67
You are looking at a dashboard is sales by a US state and would like to see the sales for individual counties within a specific state What action should you take?
- A. Aggregate.
- B. Deviate.
- C. Roll up.
- D. Drill down.
Answer: D
NEW QUESTION 68
Which of the following contains alphanumeric values?
- A. 10.1E²
- B. 0
- C. A3J7
- D. 13.6
Answer: C
NEW QUESTION 69
What term is used to describe an interactive visualization that encourages people to explore data dynamically?
- A. Data point.
- B. Dashboard.
- C. Graphical representation.
- D. Data set.
Answer: B
Explanation:
A dashboard is a visual display of all of your data. While it can be used in all kinds of different ways, its primary intention is to provide information at-a-glance, such as KPIs. A dashboard usually sits on its own page and receives information from a linked database.
NEW QUESTION 70
Which one of the following would not normally be considered a summary statistic?
- A. Mean.
- B. Variance.
- C. z-score.
- D. Standard deviation.
Answer: C
Explanation:
Simply put, a z-score (also called a standard score) gives you an idea of how far from the mean a data point is. But more technically it's a measure of how many standard deviations below or above the population mean a raw score is. A z-score can be placed on a normal distribution curve.
NEW QUESTION 71
Which of the following describes the method of sampling in which elements of data are selected randomly from each of the small subgroups within a population?
- A. Cluster
- B. Stratified
- C. Systematic
- D. Simple random
Answer: C
NEW QUESTION 72
While reviewing survey data, an analyst notices respondents entered "Jan," "January," and "01" as responses for the month of January. Which of the following steps should be taken to ensure data consistency?
- A. Replace any of the responses that have "01".
- B. Filter on any of the responses that do not say "January" and update them to "January".
- C. Sort any of the responses that say "Jan" and update them to "01".
- D. Delete any of the responses that do not have "January" written out.
Answer: B
NEW QUESTION 73
What cybersecurity goal protects an organization's data from unauthorized modification?
- A. Integrity.
- B. Confidentiality.
- C. Non-repudiation.
- D. Availability.
Answer: A
Explanation:
The term data integrity refers to the accuracy and consistency of data. When creating databases, attention needs to be given to data integrity and how to maintain it. A good database will enforce data integrity whenever possible. For example, a user could accidentally try to enter a phone number into a date field.
NEW QUESTION 74
How many variables may be shown in a simple pie chart?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 75
What is the maximum number of values that may be assigned to a single key in a key/value store?
- A. 0
- B. 1
- C. 2
- D. No maximum
Answer: D
NEW QUESTION 76
Harry is looking at home sales prices in single zip code and notices that one home sold for $940,394 when the average selling price of similar homes is $210,420.
What type of data does the $940,394 sales price represent?
Choose the best answer.
- A. Redundant data.
- B. Data outlier.
- C. Invalid data.
- D. Duplicate data.
Answer: B
Explanation:
Correct answer B. Data outlier.
Since the value is more than four times the average, the $940,394 value is an outlier.
NEW QUESTION 77
What effort has the goal of maintaining a single source of truth for the most important data elements handled by the organization?
- A. DLP (Data Loss Prevention)
- B. MAM (Mobile Application Management)
- C. IPS (Intrusion Prevention System)
- D. MDM (Master Data Management)
Answer: D
Explanation:
Master data management (MDM) involves creating a single master record for each person, place, or thing in a business, from across internal and external data sources and applications. This information has been de-duplicated, reconciled and enriched, becoming a consistent, reliable source. Once created, this master data serves as a trusted view of business-critical data that can be managed and shared across the business to promote accurate reporting, reduce data errors, remove redundancy, and help workers make better-informed business decisions.
NEW QUESTION 78
While reviewing survey data, a research analyst notices data is missing from all the responses to a single question. Which of the following methods would BEST address this issue?
- A. Replace missing data.
- B. Replace redundant data.
- C. Remove invalid data.
- D. Remove duplicate data.
Answer: B
NEW QUESTION 79
According to the empirical rule, what percent of thee values in a sample fall within three standard deviations of the mean in a normal distribution?
- A. 95%
- B. 90%
- C. 68%
- D. 99.70%
Answer: D
Explanation:
According to the empirical rule, 68% of values are within one standard deviation, 95% are within two standard deviations, and 99.7% are within three standard deviations.
NEW QUESTION 80
A junior web developer is developing a new application where users can upload short videos. The first task is to create a homepage that shows the headline "Upload Your Short Videos" and a clickable button that says "upload now".
Which of the following HTML commands would help the developer to complete the task successfully?
- A. < span >Upload Your Short Videos< /span >< button >upload now< /button >
- B. < hl >Upload Your Short Videos< /h1 >< hl >upload now< /h1 >
- C. < p >Upload Your Short Videos< /p >< p >upload now< /p >
- D. < hl >Upload Your Short Videos< /h1 >< button >upload now< /button >
Answer: D
Explanation:
The correct answer is: Upload Your Short Videos
upload now
The two tags are used to define HTML headings. defines the most important heading. defines the least important heading.
Note: Only use one per page - this should represent the main heading/subject for the whole page. The tag defines a clickable button.
NEW QUESTION 81
Which one of the following tools would not be considered a fully featured analytics suite?
- A. Power BI.
- B. MicroStrategy.
- C. Minitab.
- D. Domo.
Answer: C
Explanation:
Correct answer A. Minitab.
Power BI, Domo, and MicroStrategy are all analytics suites offering features that fill many different needs within the analytics process.
Minitab is a statistical analysis package that lacks many of these capabilities.
NEW QUESTION 82
An analyst needs to provide a chart to identify the composition between the categories of the survey response data set:
Which of the following charts would be BEST to use?
- A. Waterfall
- B. Scatter pot
- C. Pie
- D. Histogram
- E. Line
Answer: C
NEW QUESTION 83
Data stewards protect the organization from legal violations that may result in costly fines and negative publicity.
- A. False.
- B. True.
Answer: B
NEW QUESTION 84
A county in Illinois is conducting a survey to determine the mean annual income per household. The county is 427sq mi (2.65q km). Which of the following sampling methods would MOST likely result in a representative sample?
- A. A stratified phone survey of 100 people that is conducted between 2:00 p.m. and 3:00 p.m.
- B. Surveys sent to 100 randomly selected homes that are reflective of the population
- C. Surveys sent to ten randomly selected homes within 5mi (8km) of the county's office
- D. A systematic survey that is sent to 100 single-family homes in the county
Answer: B
NEW QUESTION 85
Which of the following can be used to translate data into another form so it can only be read by a user who has a key or a password?
- A. Data transmission.
- B. Data masking.
- C. Data protection.
- D. Data encryption.
Answer: D
Explanation:
Data encryption is a way of translating data from plaintext (unencrypted) to ciphertext (encrypted). Users can access encrypted data with an encryption key and decrypted data with a decryption key.
NEW QUESTION 86
An analyst has received the requirements for an internal user dashboard. The analyst confirms the data sources and then creates a wireframe. Which of the following is the NEXT step the analyst should take in the dashboard creation process?
- A. Optimize the dashboard.
- B. Get stakeholder approval.
- C. Deploy to production.
- D. Create subscriptions.
Answer: A
NEW QUESTION 87
Which one of the following in NOT a common data integration tool?
- A. XSS
- B. ETL
- C. APIs
- D. ELT
Answer: A
Explanation:
Cross-site Scripting (XSS) is a security vulnerability usually found in websites and/or web applications that accept user input.
XSS is a client-side vulnerability that targets other application users, while SQL injection is a server-side vulnerability that targets the application's database. How do I prevent XSS in PHP? Filter your inputs with a whitelist of allowed characters and use type hints or type casting.
NEW QUESTION 88
Analyzing a data point, you find that the point is 1 standard deviation above the mean.
What is the z-score for this data point?
- A. 0.5
- B. -0.5
- C. 0
- D. 1
Answer: C
NEW QUESTION 89
Given the diagram below:
Which of the following data schemas shown?
- A. Key-value pairs
- B. Relational database
- C. Data lake
- D. Online transactional processing
Answer: B
NEW QUESTION 90
What technique is used to swap the values in rows and columns of tabular data?
- A. Regression.
- B. Association.
- C. Transposition.
- D. Classification.
Answer: C
NEW QUESTION 91
Which of the following is a control measure for preventing a data breach?
- A. Data retention
- B. Data attribution
- C. Data transmission
- D. Data encryption
Answer: D
NEW QUESTION 92
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