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DA0-001 Practice Exam Questions and Answers

CompTIA Data+ Certification Exam

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Total Questions : 215

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Question # 1

Which of the following statistical methods requires two or more categorical variables?

Options:

A.  

Simple linear regression

B.  

Chi-squared test

C.  

Z-test

D.  

Two-sample t-test

Discussion 0
Question # 2

Which of following is a non-relational database?

Options:

A.  

Neo4j

B.  

SQLite

C.  

MySQL

D.  

PostgreSQL

Discussion 0
Question # 3

Which of the following contains alphanumeric values?

Options:

A.  

10.1Ε²

B.  

13.6

C.  

1347

D.  

A3J7

Discussion 0
Question # 4

Analytics reports should follow corporate style guidelines.

Options:

A.  

True.

B.  

False.

Discussion 0
Question # 5

Given the below:

Question # 5

Which of the following numbers represents a Type I error?

Options:

A.  

1

B.  

2

C.  

3

D.  

4

Discussion 0
Question # 6

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?

Options:

A.  

Indexing.

B.  

Subset of records.

C.  

Temporary table in the query set.

D.  

Parametrization.

Discussion 0
Question # 7

Exhibit.

Question # 7

Which of the following logical statements results in Table B?

A)

Question # 7

B)

Question # 7

C)

Question # 7

D)

Question # 7

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Question # 8

Which of the following best describes the process of examining data for statistics and information about the data?

  • Cleansing

Options:

A.  

search

B.  

Profiling

C.  

Governance

Discussion 0
Question # 9

A database consists of one fact table that is composed of multiple dimensions. Depending on the dimension, each one can be represented by a denormalized table or multiple normalized tables. This structure is an example of a:

Options:

A.  

transactional schema.

B.  

star schema.

C.  

non-relational schema.

D.  

snowflake schema.

Discussion 0
Question # 10

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

Question # 10

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

Options:

A.  

$640,900

B.  

$690,000

C.  

$705,200

D.  

$702,500

Discussion 0
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