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← Communicating Data Insights practice sets

DA0-001 Communicating Data Insights • Complete Question Bank

DA0-001 Communicating Data Insights — All Questions With Answers

Complete DA0-001 Communicating Data Insights question bank — all 0 questions with answers and detailed explanations.

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Certifications/DA0-001/Practice Test/Communicating Data Insights/All Questions
Question 1mediummultiple choice
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A data analyst notices that a line chart showing monthly sales over the past two years has a steep drop in one month. Upon investigation, the analyst discovers that a new sales region was added mid-month and the data was not normalized. Which of the following best practices should the analyst apply to communicate this insight accurately?

Question 2hardmultiple choice
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A data team is preparing a dashboard for executives. The team wants to highlight key performance indicators (KPIs) that are below target. Which of the following visualization techniques would most effectively draw attention to underperforming metrics without causing confusion?

Question 3easymultiple choice
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A data analyst needs to present the distribution of customer ages to a non-technical audience. Which type of chart would be most appropriate?

Question 4mediummultiple choice
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A data analyst creates a report showing sales by product category. The analyst notices that one category has a very high sales figure due to a one-time bulk order. Which of the following is the best way to communicate this insight to stakeholders?

Question 5hardmultiple choice
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A data analyst is building a dashboard that will be used by both executives and operational managers. The executives need high-level summaries, while managers need granular details. Which dashboard design principle should the analyst apply?

Question 6easymultiple choice
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A data analyst wants to compare the sales performance of four different stores over the same time period. Which chart type is most suitable?

Question 7mediummultiple choice
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A data analyst creates a scatter plot showing the relationship between advertising spend and revenue. The plot shows a strong positive correlation. Which of the following should the analyst include in the report to ensure accurate communication?

Question 8hardmultiple choice
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A data analyst is presenting a weekly sales report to a diverse audience that includes sales managers, marketing team, and finance. The analyst wants to ensure the data is understood correctly. Which communication strategy is most effective?

Question 9mediummulti select
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Which TWO of the following are best practices for designing a data dashboard?

Question 10hardmulti select
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Which THREE of the following are appropriate ways to handle outliers when communicating data insights?

Question 11easymulti select
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Which TWO of the following are effective techniques for presenting data to a non-technical audience?

Question 12hardmultiple choice
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A data analyst is reviewing an S3 bucket policy that controls access to a data lake. The analyst wants to communicate that the current policy restricts data downloads to a specific IP range. Which of the following best describes the policy's effect?

Exhibit

Refer to the exhibit.

```
{
  "policy": {
    "effect": "Deny",
    "action": ["s3:GetObject"],
    "resource": "arn:aws:s3:::data-bucket/*",
    "condition": {
      "IpAddress": {
        "aws:SourceIp": "192.0.2.0/24"
      }
    }
  }
}
```
Question 13mediummultiple choice
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A data analyst encounters the above error log when trying to connect to a database. The analyst needs to explain the issue to the database administrator. Which of the following correctly describes the problem?

Exhibit

Refer to the exhibit.

```
[2024-03-15 14:23:45] ERROR: Connection pool exhausted. Retry attempt 1...
[2024-03-15 14:23:46] ERROR: Connection pool exhausted. Retry attempt 2...
[2024-03-15 14:23:47] ERROR: Connection pool exhausted. Retry attempt 3...
[2024-03-15 14:23:48] ERROR: Connection pool exhausted. Max retries exceeded.
```
Question 14hardmultiple choice
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A large e-commerce company has a data warehouse that stores daily sales transactions. The data analytics team creates a weekly report for the executive team that includes total revenue, number of orders, and average order value. Recently, the report showed a sudden 20% drop in total revenue compared to the previous week. Upon investigation, the data analyst discovers that a major promotional event ended the previous week, and the current week's data includes a new product launch with lower prices. The analyst needs to present this data to the executives in a way that accurately reflects the business situation. The analyst must also provide recommendations for actions. Which of the following is the best course of action?

Question 15mediummultiple choice
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A healthcare analytics team is responsible for producing a monthly dashboard for hospital administrators. The dashboard includes key metrics such as patient admission rates, average length of stay, readmission rates, and bed occupancy. For the current month, the data shows a significant increase in average length of stay. The data analyst suspects that this increase is due to a new chronic disease management program that was implemented at the beginning of the month. However, the analyst also notices that the data for the previous month had an error: some discharge dates were incorrectly recorded, causing the average length of stay to be artificially low. The analyst needs to communicate the insights to the administrators, who are concerned about the increase. Which of the following is the best course of action?

Question 16easymultiple choice
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A data analyst creates a bar chart showing monthly sales for the current year. The CEO asks to see the same data but grouped by region. Which chart type is most appropriate for this new requirement?

Question 17mediummultiple choice
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A data analyst creates a dashboard for operational metrics. The operations team reports that the dashboard is confusing because it shows too many metrics on one screen. Which design principle should the analyst apply?

Question 18hardmultiple choice
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An analyst presents a report to stakeholders who are not data-savvy. The report includes a box plot showing the distribution of customer satisfaction scores. One stakeholder asks, 'What do the whiskers mean?' Which communication strategy should the analyst use?

Question 19easymultiple choice
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A data analyst needs to present the results of a customer segmentation analysis to the marketing team. The analysis identified four segments based on purchasing behavior. Which visualization is most effective for showing the characteristics of each segment?

Question 20mediummultiple choice
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An analyst is creating a report to show the relationship between advertising spend and website traffic over the past 12 months. The data has a few outliers due to special promotional events. Which chart type should the analyst use to clearly show the trend while minimizing the impact of outliers?

Question 21hardmultiple choice
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During a presentation, a stakeholder questions the validity of a data insight because the sample size appears small. The analyst knows the sample is statistically significant. What is the best way to address this concern?

Question 22easymulti select
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Which TWO actions are appropriate when creating a data visualization for a diverse audience with varying levels of data literacy? (Choose two.)

Question 23mediummulti select
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Which THREE elements should be included in a data insight report to ensure it is actionable? (Choose three.)

Question 24hardmultiple choice
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You are a data analyst at a retail company. Your team has deployed a new dashboard that displays real-time inventory levels across all warehouses. The dashboard uses a traffic light color scheme (green = sufficient, yellow = low, red = out of stock). After one week, the warehouse managers complain that the dashboard is overwhelming because it shows all 500+ products at once, and they cannot quickly identify which items need immediate attention. They request a way to prioritize items that are red or yellow. Additionally, the dashboard updates every second, causing the screen to flicker constantly, which they find distracting. You need to redesign the dashboard to address these issues. Which course of action should you take?

Question 25mediummultiple choice
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A data analyst needs to present findings to a non-technical executive audience. Which visualization type is most appropriate to communicate a clear comparison of sales performance across multiple regions for the current quarter?

Question 26hardmulti select
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Which TWO of the following are best practices when creating a data visualization for a presentation to stakeholders?

Question 27easymultiple choice
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You are a data analyst at a retail company. The marketing team has asked you to analyze the effectiveness of a recent email campaign. You have data on email open rates, click-through rates, and conversion rates. The campaign targeted 50,000 customers; 20,000 opened the email, 5,000 clicked a link, and 500 made a purchase. The marketing director wants to know the campaign's overall performance and whether the email content was engaging. You prepare a dashboard but notice that the click-through rate (CTR) is 25% and the conversion rate is 10%, which seem high. Upon reviewing the data, you discover that the click-through rate was calculated as (clicks / opens) * 100, and the conversion rate as (purchases / clicks) * 100. The director expects the conversion rate to be calculated as (purchases / opens) * 100. Which action should you take to ensure accurate communication of insights?

Question 28mediumdrag order
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Drag and drop the steps to conduct a hypothesis test in the correct order.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
Question 29mediumdrag order
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Drag and drop the steps to perform a root cause analysis on data quality issues in the correct order.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
Question 30mediummatching
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Match each ETL process step to its description.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts
Matches

Retrieve data from source systems

Clean, format, and apply business rules

Insert processed data into target system

Analyze source data to understand structure

Correct or remove inaccurate records

Question 31mediummatching
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Match each data security concept to its description.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts
Matches

Convert data into code to prevent unauthorized access

Replace sensitive data with non-sensitive placeholder

Hide parts of data (e.g., show only last 4 digits)

Restrict data access based on user permissions

Log of all data access and modifications

Question 32easymultiple choice
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A data analyst is creating a dashboard for executives to show monthly sales trends over the past year. Which chart type is most appropriate?

Question 33mediummultiple choice
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An analyst is presenting findings to a non-technical audience. The data shows a 20% increase in customer churn after a price change. Which presentation approach is BEST?

Question 34hardmultiple choice
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A healthcare organization must ensure patient data privacy when sharing reports with external auditors. Which practice is most important?

Question 35mediummultiple choice
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A dashboard automatically refreshes every hour, but users report stale data. What is the most likely issue?

Question 36easymultiple choice
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When creating a data story, what should be the FIRST step?

Question 37hardmultiple choice
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A data analyst includes a map showing customer locations by zip code. The map reveals exact addresses for a few customers due to data granularity. This violates which principle?

Question 38mediummultiple choice
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A report uses red and green colors to indicate performance; a stakeholder who is colorblind complains. What is the BEST remedy?

Question 39mediummultiple choice
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An analyst needs to present quarterly sales data to the board. The CEO wants to see both overall trend and breakdown by region. Which dashboard layout is most effective?

Question 40easymultiple choice
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A company must comply with GDPR when reporting customer data. What must be included in the report?

Question 41mediummulti select
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Which TWO are best practices for data storytelling?

Question 42hardmulti select
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A company is designing a dashboard for real-time monitoring. Which THREE considerations are most critical?

Question 43easymulti select
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Which TWO are common pitfalls when communicating data insights?

Question 44mediummultiple choice
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Refer to the exhibit. An analyst runs a query to count orders in June 2023 and gets 12,345. However, a dashboard shows 12,298 for the same month. What is the most likely cause?

Exhibit

SELECT COUNT(*) FROM orders WHERE order_date >= '2023-06-01' AND order_date < '2023-07-01';
Result: 12,345
Question 45hardmultiple choice
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Refer to the exhibit. A data analyst is unable to run a query on the customers table after October 1, 2023. What is the reason?

Exhibit

{
  "policy": {
    "Statement": [
      {
        "Effect": "Allow",
        "Action": "SELECT",
        "Resource": "prod_db.customers",
        "Condition": {
          "DateLessThan": {
            "aws:CurrentTime": "2023-10-01T00:00:00Z"
          }
        }
      }
    ]
  }
}
Question 46easymultiple choice
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Refer to the exhibit. An ETL pipeline failed. What is the most likely root cause?

Exhibit

2023-03-15 14:32:10 ERROR: Failed to load data from source: Timeout expired.
2023-03-15 14:32:10 WARN: Retry attempt 1/3...
2023-03-15 14:32:15 ERROR: Retry 1 failed: Connection reset.
2023-03-15 14:32:15 WARN: Retry attempt 2/3...
2023-03-15 14:32:20 ERROR: Retry 2 failed: Server not responding.
2023-03-15 14:32:20 WARN: Retry attempt 3/3...
2023-03-15 14:32:25 ERROR: All retries exhausted. Pipeline failed.
Question 47easymultiple choice
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A data analyst is presenting findings to a non-technical audience. Which data visualization technique is most appropriate?

Question 48mediummultiple choice
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A stakeholder asks for the exact number of customers who churned last month. Which metric should the analyst report?

Question 49hardmultiple choice
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An analyst notices that a dashboard displays conflicting data from two sources. What is the first step in troubleshooting?

Question 50easymultiple choice
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When designing a report for executive leadership, which aspect is most important?

Question 51mediummultiple choice
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A data analyst needs to communicate a forecast with uncertainty. Which visualization is best?

Question 52hardmultiple choice
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During a presentation, a stakeholder questions the validity of a correlation found. What is the best response?

Question 53easymultiple choice
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Which type of chart is most suitable for showing the distribution of a single continuous variable?

Question 54mediummultiple choice
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A data team is creating a dashboard to monitor real-time sales. What design principle is critical?

Question 55hardmultiple choice
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An analyst finds that a key metric drops significantly after a data pipeline update. How should the analyst proceed?

Question 56mediummulti select
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An analyst is creating a report for both technical and executive audiences. Which two strategies are effective? (Choose TWO.)

Question 57hardmulti select
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When presenting data insights, which three practices help ensure clarity? (Choose THREE.)

Question 58easymulti select
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A data analyst discovers an anomaly in a dataset. Which two actions should be taken before reporting? (Choose TWO.)

Question 59easymultiple choice
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Refer to the exhibit. A data analyst is unable to access the dataset during weekends. Based on the policy, what is the most likely reason?

Exhibit

{
  "policy": {
    "access": "restricted",
    "roles": ["analyst", "manager"],
    "conditions": {
      "time": "business_hours",
      "location": "internal_network"
    }
  }
}
Question 60mediummultiple choice
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Refer to the exhibit. What is the impact of the validation result?

Network Topology
$ validatesource=prodtarget=stagingValidation Results:- Data type mismatch: No- Duplicates found: No
Question 61hardmultiple choice
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Refer to the exhibit. What is the best course of action for the data analyst?

Exhibit

2025-03-15 14:32:01 ERROR [TransformJob] Failed to transform row 4521: Missing value for field 'Region'
2025-03-15 14:32:02 WARN [TransformJob] Defaulting missing 'Region' to 'Unknown'
Question 62easymultiple choice
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A data analyst is preparing a presentation for executive leadership. The analyst wants to highlight the correlation between marketing spend and revenue over the past year. Which visualization type is most appropriate for showing this relationship?

Question 63easymultiple choice
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A business user asks a data analyst to include several charts in a weekly report. The user wants to see the trend of sales over the last 12 months at a glance. Which chart type should the analyst use?

Question 64easymultiple choice
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A data analyst needs to communicate findings to a non-technical audience that is concerned with overall performance but not interested in details. Which approach is best?

Question 65mediummultiple choice
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A data analyst is creating a report to compare the performance of different sales regions. The report will be used by regional managers to identify areas needing improvement. Which of the following visualization techniques would be most effective?

Question 66mediummultiple choice
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During a data presentation, an audience member questions the accuracy of the data shown. Which of the following is the best way for the analyst to respond?

Question 67mediummultiple choice
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A data analyst needs to create a dashboard that updates automatically every hour. The data source is a large database. Which approach minimizes performance impact?

Question 68hardmultiple choice
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A data analyst is tasked with presenting the results of a customer churn analysis to a group of marketing managers. The model identified that customers with low engagement scores are 3 times more likely to churn. The analyst wants to effectively communicate this finding to persuade the managers to focus on engagement. Which of the following is the most compelling way to present this insight?

Question 69hardmultiple choice
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A data analyst discovers a data discrepancy in a report that has already been distributed to executives. The discrepancy is due to a known bug that will be fixed next month. What is the most appropriate action?

Question 70hardmultiple choice
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An analyst is creating a data story about the decline in customer satisfaction scores. The data shows that satisfaction dropped after a software update. Which narrative structure best helps the audience understand the cause and effect?

Question 71easymulti select
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A data analyst is designing a dashboard for senior executives who need to quickly monitor key business metrics. Which TWO design principles should the analyst follow? (Choose two.)

Question 72mediummulti select
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A data analyst is preparing a report to present to a mixed audience of technical and non-technical stakeholders. Which THREE techniques should the analyst use to ensure effective communication? (Choose three.)

Question 73hardmulti select
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A data analyst is presenting a complex statistical analysis to a group of data scientists. The audience is highly knowledgeable. Which TWO approaches are most appropriate? (Choose two.)

Question 74easymultiple choice
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Refer to the exhibit. The data shows sales by product category for two years. Which product category had the highest percentage increase from 2023 to 2024?

Network Topology
+Refer to the exhibit.
Question 75mediummultiple choice
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Refer to the exhibit. A data analyst receives this error when running a data load script. What is the most likely cause?

Exhibit

Refer to the exhibit.
ERROR: Duplicate entry '12345' for key 'PRIMARY'
Query: INSERT INTO customers (customer_id, name, email) VALUES (12345, 'John Doe', 'jdoe@example.com');
Question 76hardmultiple choice
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Refer to the exhibit. A data analyst is creating a report that includes customer transaction data from 6 years ago. According to the policy, what should the analyst do?

Exhibit

Refer to the exhibit.
{
  "policy": {
    "data_retention": {
      "customer_transactions": "5 years",
      "employee_records": "7 years",
      "marketing_leads": "2 years"
    },
    "data_sharing": {
      "third_party_vendors": "anonymized only",
      "internal_departments": "as needed"
    },
    "data_quality": {
      "missing_values": "flag and report",
      "outliers": "review quarterly"
    }
  }
}
Question 77easymultiple choice
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A data analyst creates a line chart showing monthly sales over the past year. The chart uses a y-axis starting at $100,000 instead of zero. What is the most likely misinterpretation a viewer might have?

Question 78mediummultiple choice
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A data team created a dashboard for executives. The dashboard updates daily and includes several KPIs. Executives complain that they cannot quickly identify the most critical issues. Which design change would best address this?

Question 79hardmultiple choice
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A data analyst is presenting results from a customer segmentation analysis to a non-technical audience. The segmentation was performed using k-means clustering, and the analyst wants to explain the characteristics of each cluster. Which visualization is most appropriate for this audience?

Question 80easymultiple choice
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A data analyst needs to present findings about customer churn to business stakeholders. The analysis identified that churn is highest among customers who have called customer support more than three times in the last month. Which of the following is the best way to communicate this insight?

Question 81mediummultiple choice
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A data analyst creates a dashboard that includes a map showing sales by region. The map uses a continuous color gradient from light yellow to dark blue. Some regions with very high sales appear as dark blue, but many regions with moderate sales appear similar. Which improvement would most enhance the readability?

Question 82hardmultiple choice
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A data team is preparing a quarterly business review for the CEO. The report must include both high-level summaries and the ability for the CEO to drill down into specific departments. Which reporting technique best meets this requirement?

Question 83easymultiple choice
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A data analyst is asked to create a visualization showing the trend of monthly revenue over the last five years. Which chart type is most suitable?

Question 84mediummultiple choice
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A company's sales dashboard shows that the current month's revenue is $1.2M, which is 10% below the target of $1.33M. The analyst wants to highlight this shortfall. Which method of data presentation is most effective?

Question 85hardmultiple choice
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A data analyst is creating a presentation for the board of directors. The board members have varying levels of data literacy. The analyst wants to ensure that the key insight—that customer satisfaction scores have declined by 15% due to longer wait times—is understood by everyone. Which approach is best?

Question 86easymulti select
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A data analyst is designing a dashboard for a sales team. Which TWO of the following are best practices for dashboard design?

Question 87mediummulti select
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A data analyst is preparing a data storytelling presentation for a non-technical audience. Which THREE techniques are most effective for communicating insights?

Question 88hardmulti select
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A data team is creating a report for the board of directors. The board wants to see both the big picture and the ability to explore details for specific regions. Which TWO approaches should the team implement?

Question 89easymultiple choice
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Refer to the exhibit. A data analyst wants to create a visualization that best shows the trend of sales over time for each department. Which chart type should be used?

Network Topology
+
Question 90mediummultiple choice
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Refer to the exhibit. A data analyst is troubleshooting a failed dashboard refresh. The error log shows repeated SQL syntax errors. Which of the following is the most likely cause?

Exhibit

Error Log:
2024-07-15 08:23:45, ERROR - Query execution failed: ORA-00933: SQL command not properly ended
2024-07-15 08:23:45, ERROR - Stack trace: at com.example.DataService.getData(DataService.java:42)
2024-07-15 08:23:45, WARN - Retry attempt 1 of 3
2024-07-15 08:23:47, ERROR - Retry failed: ORA-00933: SQL command not properly ended
2024-07-15 08:23:47, ERROR - Data refresh job for dashboard 'DailySummary' failed.
Question 91hardmultiple choice
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Refer to the exhibit. A data analyst is reviewing the configuration of an executive dashboard. The dashboard refreshes daily at 6:00 AM. Which of the following best describes a potential issue with this dashboard for executive use?

Exhibit

{
  "dashboardName": "ExecutiveOverview",
  "refreshSchedule": "daily 06:00",
  "dataSources": ["SalesDB", "CustomerDB"],
  "visualizations": [
    {"type": "bar", "title": "Revenue by Region", "field": "revenue_region"},
    {"type": "line", "title": "Monthly Trend", "field": "monthly_revenue"},
    {"type": "table", "title": "Top Customers", "field": "customer_data"}
  ],
  "alerts": [
    {"metric": "revenue", "condition": "< 1000000", "severity": "high"}
  ]
}
Question 92easymultiple choice
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A data analytics team has created a report for stakeholders. The report includes complex statistical terms and raw data tables. Stakeholders are confused and ask for clarification. Which of the following should the team do to improve communication?

Question 93easymultiple choice
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A data analyst is creating a data story for a marketing campaign results. Which of the following narrative structures is most effective for engaging the audience?

Question 94easymultiple choice
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A company wants to ensure that data visualizations are accessible to colorblind users. Which of the following is a best practice?

Question 95mediummultiple choice
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A data analyst is troubleshooting a dashboard that displays incorrect totals for sales by region. The data source queries are correct. Which of the following is the most likely cause?

Question 96mediummultiple choice
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A data team needs to communicate insights about customer churn to the sales team. The insights include confidence intervals and p-values. The sales team is not familiar with statistics. Which of the following should the data team do?

Question 97mediummultiple choice
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When presenting data insights to a technical audience, which of the following is most important to include?

Question 98hardmultiple choice
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A data analyst creates a dashboard for executives that shows a key metric trending downward. The analyst notices that the metric is highly volatile day-to-day. Which visualization type is most appropriate to show the underlying trend?

Question 99hardmultiple choice
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A data team is communicating findings from a machine learning model that predicts equipment failure. The model has high accuracy but low recall. Which of the following statements is the most accurate way to communicate the model's performance to the maintenance team?

Question 100hardmultiple choice
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A data analyst is creating a report on customer satisfaction scores across different regions. The analyst wants to highlight regions that are significantly below average. Which of the following statistical methods is most appropriate for identifying these outliers?

Question 101easymulti select
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A data analyst is preparing a presentation for a mixed audience of executives and technical staff. Which two of the following practices would be most effective? (Select TWO.)

Question 102mediummulti select
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A data analyst is troubleshooting a dashboard that displays slowly. Which two of the following are common causes of dashboard performance issues? (Select TWO.)

Question 103hardmulti select
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A data analyst is communicating insights about a sales forecast to stakeholders. Which three of the following should the analyst include to build trust and clarity? (Select THREE.)

Question 104mediummultiple choice
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Refer to the exhibit. A data analyst is reviewing the job log. Which of the following best explains the reduction in record count?

Exhibit

Job: sales_aggregation
Input records: 1,000,000
Output records: 500,000
Log: Aggregation on 'region' and 'date' - Sum(sales). Records with null region excluded: 50.
Question 105hardmultiple choice
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Refer to the exhibit. A data analyst is reviewing a data quality report. Which of the following actions should the analyst take first?

Exhibit

Data Quality Check Report
Table: customer_info
Check: Non-null validation on email field
Result: Failed - 1200 records have null email
Question 106easymultiple choice
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A retail company has a data warehouse that integrates sales data from multiple sources including online transactions, in-store POS, and third-party marketplaces. The data team recently updated the ETL pipeline to add a new data source: mobile app purchases. After the update, the daily sales report shows a 15% increase in total sales compared to the previous day, which is unexpected because the mobile app is new and only contributed 2% of sales in tests. The report is created by a SQL script that aggregates sales by date and runs every morning. The data team needs to identify the cause of the discrepancy. Which of the following should the team do first?

Question 107easymultiple choice
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A data analyst creates a dashboard for executives to monitor quarterly sales. Which best practice ensures the dashboard is effective?

Question 108mediummultiple choice
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After presenting a data analysis to stakeholders, they ask for additional details on a specific trend. The analyst needs to provide a follow-up report. What is the best approach?

Question 109hardmultiple choice
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A data analyst is preparing a presentation on customer churn. The audience consists of both technical and non-technical stakeholders. Which visualization approach is most effective?

Question 110easymultiple choice
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An analyst needs to communicate a data insight about a sudden drop in website traffic. Which communication method should be used first?

Question 111mediummultiple choice
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A data analyst creates a report and wants to ensure it tells a compelling story. Which element is most important for data storytelling?

Question 112hardmultiple choice
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While reviewing a dashboard, an analyst notices that the data in a trend line chart does not match the underlying data due to a filter setting. The dashboard is used for weekly executive meetings. What should the analyst do?

Question 113easymulti select
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A data analyst is designing a dashboard for non-technical managers. Which TWO design principles should be applied? (Choose TWO.)

Question 114mediummulti select
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An analyst is presenting findings to stakeholders. Which TWO techniques effectively communicate uncertainty in data? (Choose TWO.)

Question 115hardmulti select
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A data analyst is creating a data story about sales performance. Which THREE elements are essential for effective data storytelling? (Choose THREE.)

Question 116easymultiple choice
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A retail company has a dashboard that tracks daily sales across all stores. The dashboard is used by the CEO during monthly board meetings. Recently, the CEO complained that the dashboard is confusing and takes too long to interpret. The data analyst is asked to redesign the dashboard to improve usability. The analyst has access to all sales data. The CEO prefers a high-level overview with the ability to drill down into regions if needed. The analyst must decide on a course of action. What should the analyst do first?

Question 117mediummultiple choice
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A healthcare company's data analyst is tasked with presenting patient readmission rates to a group of doctors and nurses. The data shows that readmission rates are higher among patients with certain chronic conditions. The audience has limited data literacy, but they are familiar with clinical terms. The analyst wants to communicate the insights effectively and encourage discussion on preventive measures. The presentation will last 15 minutes, and the audience expects actionable insights. What should the analyst do?

Question 118hardmultiple choice
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A financial analyst at a bank is preparing a report on loan default risks to the risk management committee. The committee includes both technical (quantitative analysts) and non-technical (business managers) members. The analyst has built a logistic regression model that outputs probability scores for default. The model's performance is good, but the committee wants to understand the key drivers of default. The analyst needs to communicate both the model's accuracy and the impact of each feature. The report should be concise and persuasive, leading to policy changes. What is the best approach?

Question 119easymultiple choice
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A data analyst at a marketing firm is creating a weekly performance report for the marketing team. The report includes metrics like click-through rates, conversion rates, and cost per acquisition. The team prefers a quick overview of the week's performance to identify trends and make decisions in their Monday morning meeting. The meeting is only 30 minutes, and the team has limited time to review data. The analyst wants to provide a report that is concise and actionable. What format should the analyst use?

Question 120mediummultiple choice
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A logistics company tracks delivery times and customer satisfaction scores. The data analyst finds that delivery times have increased over the past quarter, correlating with a drop in satisfaction. The analyst needs to present this to the operations team, which is interested in root cause analysis. The team wants to identify whether the increase is due to specific regions, routes, or time periods. The analyst has access to granular data including timestamps, route IDs, and region codes. The presentation should lead to actionable insights for process improvement. What visualization should the analyst use as the primary chart?

Question 121hardmultiple choice
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A government agency's data analyst is commissioned to produce a report on public transportation usage trends. The report will be read by policymakers, transit planners, and the general public. The data includes ridership numbers, delay rates, and demographic breakdowns. The analyst needs to ensure the report is accessible and persuasive, especially to non-technical readers. The goal is to advocate for increased funding in underserved areas. The report must be data-driven but also tell a compelling story. What strategy should the analyst prioritize?

Question 122easymulti select
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Which TWO of the following are best practices when presenting data insights to a non-technical audience?

Question 123mediummultiple choice
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A retail company's data analyst developed a dashboard for store managers to monitor daily sales performance. The dashboard includes numerous metrics such as sales by hour, product category, employee, and customer demographics, along with trend lines and forecast graphs. Despite the comprehensive data, store managers are ignoring the dashboard because they find it cluttered and confusing. They prefer to rely on their intuition and verbal updates from shift leads. The analyst needs to improve communication of data insights to ensure the dashboard is used effectively. Which of the following actions should the analyst take FIRST?

Question 124hardmultiple choice
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A healthcare data analyst is presenting findings on patient readmission rates to a group of hospital administrators. The analysis reveals a 15% increase in readmissions over the past quarter for patients aged 65+ from a specific zip code. However, the administrators are skeptical because previous quarterly reports showed no such trend, and they suspect data quality issues. The analyst must communicate this insight effectively while maintaining credibility. Which of the following approaches should the analyst take?

Question 125easymulti select
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A data analyst is preparing a presentation to share findings with non-technical stakeholders. Which TWO practices should the analyst follow to effectively communicate data insights? (Choose two.)

Question 126mediummultiple choice
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A data analyst reports being unable to run the query shown in the exhibit. The data governance team reviews the access control policy. Which of the following is the most likely explanation for the denied access?

Exhibit

Refer to the exhibit.

```
2024-11-20 10:23:45 [ACCESS_DENIED] user: analyst_john, query: SELECT email FROM customers WHERE id=123, reason: insufficient permissions on column 'email'
```
Question 127hardmultiple choice
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A data analyst at a retail company is building a dashboard for store managers to track sales performance. The data comes from three sources: point-of-sale (POS) systems, inventory, and customer loyalty. The POS table contains columns transaction_id, store_id, date, product_id, quantity, and price. The inventory table has product_id, store_id, stock_level, and reorder_point. The loyalty table has customer_id, transaction_id, and points_earned. The analyst creates a star schema with a sales_fact fact table containing all rows from POS, dimension tables for store, product, date, and customer. To calculate average transaction value, the analyst uses the formula SUM(quantity * price) / COUNT(*). Store managers report that the average transaction value appears too low, especially for stores with multiple registers. The analyst realizes that because each product sold in a transaction creates a separate row in sales_fact, a single transaction with multiple items contributes multiple rows. The current calculation divides by the number of rows rather than the number of distinct transactions. Which of the following is the best course of action to correct the average transaction value metric? (Choose one.)

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