Read Online DA0-001 Test Practice Test Questions Exam Dumps [Q35-Q59]

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Read Online DA0-001 Test Practice Test Questions Exam Dumps

Easily To Pass New DA0-001 Premium Exam Updated [Sep 21, 2022]

What Do You Know About The Need For CompTIA DA0-001 Exam

CompTIA Data+ is the industry’s standard for preparing for entry-level IT jobs. CompTIA Data+ validates that you have the skills needed to succeed in a technical career, and the certification can help you advance your career. CompTIA DA0-001 exam dumps will help your to make you career.

If you are interested in careers as a systems administrator, network engineer or software developer, this exam can help you show potential employers you have the necessary technical knowledge and skills.

The CompTIA Data+ certification covers topics such as storage networks, desktop support services, operating systems and more. It also includes a section on cloud computing, which helps prepare candidates for future job roles that may require them to use cloud-based technologies.

NEW QUESTION 35
You are working with a professional statistician to perform an analysis and would like to use a statistics package.
Which one of the following would be the most appropriate?

Rapid Miner.

QLIK.

Power BI.

Minitab.

Minitab is statistical analysis software. It can be used for learning about statistics as well as statistical research. Statistical analysis computer applications have the advantage of being accurate, reliable, and generally faster than computing statistics and drawing graphs by hand.

NEW QUESTION 36
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?

Data encryption.

Data transmission.

Data protection.

Data masking.

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 37
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?

99.70%

95%

90%

68%

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 38
A web developer wants to ensure that malicious users can’t type SQL statements when they asked for input, like their username/userid.
Which of the following query optimization techniques would effectively prevent SQL Injection attacks?

Indexing.

Subset of records.

Temporary table in the query set.

Parametrization.

The correct answer is D: Parametrization. Parameterized SQL queries allow you to place parameters in an SQL query instead of a constant value. A parameter takes a value only when the query is executed, allowing the query to be reused with different values and purposes. Parameterized SQL statements are available in some analysis clients, and are also available through the Historian SDK.
For example, you could create the following conditional SQL query, which contains a parameter for the collector’s name: SELECT* FROM ExamsDigest WHERE coursename=? ORDER BY tagname SQL Injection is best prevented through the use of parameterized queries.

NEW QUESTION 39
Mario works with a group of R programmers tasked with copying data from an accounting system into a data warehouse.
In what phase are the group’s R skills most relevant?

Extract.

Load.

Transform.

Purge.

Correct answer C. Transform
The R programming language is used to manipulate and model data.
In the ETL process, this activity normally takes place during the Transform phase.
The Extract and Load phases typically use database-centric tools.
Purging data from database is typically done using SQL.

NEW QUESTION 40
A data analyst has been asked to create an ad-hoc sales report for the Chief Executive Officer (CEO).
Which of the following should be included in the report?

The sales representatives’ home addresses.

Line-item SKU numbers.

YTD total sales.

The customers’ first and last names.

NEW QUESTION 41
When taking the test at home, how much extra time is allowed compared to the in-person test?

10 minutes

30 minutes

None.

15 minutes

NEW QUESTION 42
Samantha needs to share a list of her organization’s top 50 customers with the VP of sales.
She would like to include the name of the customer, the business they represent, their contact information, and their total sales over the past year.
The VP does not have any specialized analytics skills or software but would like to make some personal notes on the dataset.
What would be the best tool for Samantha to use to share this information?

Power BI.

Microsoft Excel.

Minitab.

SAS.

Microsoft Excel.
This scenario presents a very simple use case where the business leader needs a dataset in an easy-to-access form and will not be performing any detailed analysis.
A simple spreadsheet, such as Microsoft Excel, would be the best tool for this job.
There is no need to use a statistical analysis package, such as SAS or Minitab, as this would likely confuse the VP without adding any value. The same is true of an integrated analytics suite, such as Power BI.

NEW QUESTION 43
What is the most time-consuming of the practices that authorize international data transfers under GDPR?

Binding corporate rules.

Standard contractual clauses.

Memoranda of understanding.

Privacy shield.

NEW QUESTION 44
Data stewards protect the organization from legal violations that may result in costly fines and negative publicity.

True.

False.

NEW QUESTION 45
You would like to combine the text in two different strings to form a single string.
What action are you performing?

Trimming.

Case conversion.

Parsing.

Concatenation.

Simply defined, concatenation is the act of linking things together. In Microsoft Excel, the concatenation function is one of many text functions, which allows users to combine data distributed over multiple columns.
The concatenation of two or more numbers is the number formed by concatenating their numerals.
For example, the concatenation of 1, 234, and 5678 is 12345678.

NEW QUESTION 46
What colors are commonly used for the change bars in a waterfall chart?

Red and Yellow

Blue and Green

Blue and Yellow

Red and Green

NEW QUESTION 47
Which action is mandated by the Gramm-Leach-Bliley Act (GLBA) Safeguards Rule?

The distinguishing between consumers and customers.

The development of written information security policy.

The disclosure of information sharing practices.

The provision of a privacy notice to consumers.

NEW QUESTION 48
How should data classifications be assigned?

According to criticality.

According to sensitivity.

According to sensitivity and criticality.

According to sensitivity, criticality and age.

NEW QUESTION 49
Which of the following data elements would not normally be stored in binary format?

Audio recording.

Geolocation.

Video recording.

Photograph.

NEW QUESTION 50
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?

Deviate.

Roll up.

Aggregate.

Drill down.

NEW QUESTION 51
Which one the following is not considered an aggregate function?

SUM

MIN

SELECT

MAX

NEW QUESTION 52
Which one of the following in NOT a common data integration tool?

XSS

ELT

ETL

APIs

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 53
Emma is working in a data warehouse and finds a finance fact table links to an organization dimension, which in turn links to a currency dimension that not linked to the fact table.
What type of design pattern is the data warehouse using?

Star.

Sun.

Snowflake.

Comet.

Correct answer C. Snowflake.
Since the dimension links to a dimension that isn’t connected to the fact table, it must be a Snowflake, with a Star, all dimensions link directly to the fact table, Sun and Comet are not data warehouse design patterns.

NEW QUESTION 54
What type of access permission system is most appropriate for a dashboard?

Attribute-based.

Role-based.

Mandatory.

Rule-based.

NEW QUESTION 55
Melissa wants to explore central tendency in her dataset.
Which statistic best matches her need?

Interquartile range.

Range.

Median.

Standard deviation.

Correct answer C. Median.
The Median is the middle observation of variable and is, therefore, a measure of central tendency.
Interquartile range is a measure of position.
Range and Standard deviation are both measures of dispersion.

NEW QUESTION 56
What type of metric is commonly shown on dashboards to assist senior leaders in assessing the organization’s progress toward significant goal?

KMI

KPI

KRI

KCI

NEW QUESTION 57
Oliver is designing an ETL process to copy sales data into a data warehouse on a hourly basis.
What approach should Oliver choose that would be most efficient and minimize the chance of losing historical data?

Bulk load.

Purge and load.

Use ELT instead of ETL.

Delta load.

Correct answer D. Delta load
Since Oliver needs to migrate changes every hour, a delta load is the best approach.

NEW QUESTION 58
What would be an example of an acceptable form of primary identification for the Data+ exam?

Passport.

School ID card.

Employee ID card.

Credit card with photo and signature.

NEW QUESTION 59
Analyze the values of X shown below
(2,2,5,6,7)
What is the range of these values?