DA0-001 RELIABLE TEST LABS - COMPTIA COMPTIA DATA+ CERTIFICATION EXAM - LATEST VALID DA0-001 STUDY GUIDE

DA0-001 Reliable Test Labs - CompTIA CompTIA Data+ Certification Exam - Latest Valid DA0-001 Study Guide

DA0-001 Reliable Test Labs - CompTIA CompTIA Data+ Certification Exam - Latest Valid DA0-001 Study Guide

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By selecting our DA0-001 training material, you will be able to pass the DA0-001 exam in the first attempt. You will be able to get the desired results in DA0-001 certification exam by checking out the unique self-assessment features of our DA0-001 Practice Test software. You can easily get the high paying job if you are passing the DA0-001 exam in the first attempt, and our DA0-001 study guides can help you do so.

CompTIA DA0-001 exam is an important certification for IT professionals who are involved in data management. CompTIA Data+ Certification Exam certification is recognized worldwide as a mark of excellence in data management, and the certification program provides a comprehensive curriculum that covers a range of topics related to data management. DA0-001 exam is designed to test the candidate's knowledge of data management concepts and techniques, and passing the exam is a significant achievement for any IT professional looking to establish themselves as an expert in data management.

CompTIA DA0-001 Certification Exam is a challenging test that requires dedication and preparation. DA0-001 exam consists of 90 multiple-choice questions that candidates need to complete within 90 minutes. Candidates need to score at least 720 out of 900 to pass the exam. CompTIA Data+ Certification Exam certification is valid for three years, and candidates need to renew it through continuing education or retaking the exam. Overall, the CompTIA DA0-001 certification exam is an excellent way for professionals to demonstrate their expertise in data management and advance their careers.

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CompTIA DA0-001 Certification Exam, also known as the CompTIA Data+ certification, is a vendor-neutral certification that validates the skills and knowledge of professionals working with data. DA0-001 exam is designed to test the candidate's understanding of data management, data analysis, and data reporting. CompTIA Data+ Certification Exam certification is ideal for professionals who work with data in various industries, including finance, healthcare, manufacturing, and technology.

CompTIA Data+ Certification Exam Sample Questions (Q278-Q283):

NEW QUESTION # 278
Q3 2020 has just ended, and now a data analyst needs to create an ad-hoc sales report that demonstrates how well the Q3 2020 promotion went versus last year's Q3 promotion.
Which of the following date parameters should the analyst use?

  • A. YTD 2019 vs. YTD 2020
  • B. Q3 2019 vs. Q3 2020
  • C. 2019 vs. YTD 2020
  • D. Q4 2019 vs. Q3 2020

Answer: B

Explanation:
The date parameters that the analyst should use are Q3 2019 vs. Q3 2020, as this will allow the analyst to compare the sales performance of the Q3 2020 promotion with the same period of last year. This will help to eliminate any seasonal or cyclical effects that might affect the sales data. The other options are not relevant for this purpose, as they either compare different quarters or different years. Reference: CertMaster Practice for Data+ Exam Prep - CompTIA


NEW QUESTION # 279
Given the following customer and order tables:
Which of the following describes the number of rows and columns of data that would be present after performing an INNER JOIN of the tables?

  • A. Eight rows, seven columns
  • B. Seven rows, eight columns
  • C. Five rows, eight columns
  • D. Nine rows, five columns

Answer: B

Explanation:
Explanation
This is because an INNER JOIN is a type of join that combines two tables based on a matching condition and returns only the rows that satisfy the condition. An INNER JOIN can be used to merge data from different tables that have a common column or a key, such as customer ID or order ID. To perform an INNER JOIN of the customer and order tables, we can use the following SQL statement:

This statement will select all the columns (*) from both tables and join them on the customer ID column, which is the common column between them. The result of this statement will be a new table that has seven rows and eight columns, as shown below:

The reason why there are seven rows and eight columns in the result table is because:
There are seven rows because there are six customers and six orders in the original tables, but only five customers have matching orders based on the customer ID column. Therefore, only five rows will have data from both tables, while one row will have data only from the customer table (customer 5), and one row will have no data at all (null values).
There are eight columns because there are four columns in each of the original tables, and all of them are selected and joined in the result table. Therefore, the result table will have four columns from the customer table (customer ID, first name, last name, and email) and four columns from the order table (order ID, order date, product, and quantity).


NEW QUESTION # 280
You are working with a dataset and want to change the names of categories that you used for different types of books.
What term best describes this action?

  • A. Aggregating.
  • B. Summarizing
  • C. Filtering.
  • D. Recording.

Answer: D


NEW QUESTION # 281
A data analyst received the information in the table below from a recently completed marketing campaign:

Which of the following is the total order conversion rate?

  • A. 13.2%
  • B. 85.2%
  • C. 22.3%
  • D. 14.8%

Answer: A

Explanation:
Explanation
The correct answer is A. 13.2%.
The total order conversion rate is the ratio of the total number of orders to the total number of clicks, expressed as a percentage. To calculate the total order conversion rate, we need to sum up the clicks and orders from all the channels, and then divide the orders by the clicks and multiply by 100.
Using the data from the table, we can do the following:
Total clicks = 580 + 800 + 1,200 + 300 + 620 = 3,500
Total orders = 55 + 100 + 220 + 60 + 85 = 520
Total order conversion rate = (520 / 3,500) x 100 = 14.857%
Rounding to one decimal place, we get 14.9%
Therefore, the total order conversion rate is 14.9%.


NEW QUESTION # 282
Consider the following dataset which contains information about houses that are for sale:

Which of the following string manipulation commands will combine the address and region name columns to create a full address?
full_address------------------------- 85 Turner St, Northern Metropolitan 25 Bloomburg St, Northern Metropolitan 5 Charles St, Northern Metropolitan 40 Federation La, Northern Metropolitan 55a Park St, Northern Metropolitan

  • A. SELECT CONCAT(regionname, ' , ' , address) AS full_address FROM melb LIMIT 5
  • B. SELECT CONCAT(address, '-' , regionname) AS full_address FROM melb LIMIT 5;
  • C. SELECT CONCAT(regionname, '-' , address) AS full_address FROM melb LIMIT 5;
  • D. SELECT CONCAT(address, ' , ' , regionname) AS full_address FROM melb LIMIT 5;

Answer: D

Explanation:
The correct answer is A: SELECT CONCAT(address, ' , ' , regionname) AS full_address FROM melb LIMIT
5; String manipulation (or string handling) is the process of changing, parsing, splicing, pasting, or analyzing strings. SQL is used for managing data in a relational database. The CONCAT () function adds two or more strings together. Syntax CONCAT(stringl, string2,... string_n) Parameter Values Parameter Description stringl, string2, string_n Required. The strings to add together.


NEW QUESTION # 283
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