How to Pass Data Analyst Job Interview and Hiring Assessment Test. The Comprehensive Guide to Get You Hired!


  • This article offers insights into the Data Analyst hiring process, providing practical tips and an opportunity to undergo a pre-employment assessment test.
  • It guides candidates with sample job opportunities, job interview questions, introduces the concept of an ideal candidate, looks at the most important skills the company is seeking during the hiring process, and more.
  • It assists future hires in understanding their skills and introduces premium tools designed to enhance preparation for both the job interview and the assessment test.
  • This post also shares practical tips with candidates on how to succeed and excel on the hiring exam and aims to equip job candidates with comprehensive knowledge and practice needed to increase their chances of securing their dream job and getting hired.

Data Analyst Responsibilities

A data analyst plays a crucial role in the world of data-driven decision-making. Their primary responsibility is to gather, clean, analyze, and interpret data to help organizations make informed decisions, identify patterns, trends, and insights, and solve complex problems. Data analysts work with large datasets, using various analytical tools and techniques to extract meaningful information and create visualizations to present their findings to stakeholders.

The Data Analyst is responsible for collecting, cleaning, and analyzing large datasets to derive valuable insights and trends. Using statistical methods and data visualization tools, they present their findings to support data-driven decision-making within the organization. The Data Analyst collaborates with stakeholders, interprets complex data, and provides actionable recommendations to enhance business processes and drive strategic initiatives. Key responsibilities of data analysts include:

  1. Data Collection: Gather data from various sources, including databases, spreadsheets, and APIs, ensuring data accuracy and reliability.
  2. Data Cleaning and Preprocessing: Clean and preprocess the data to remove errors, inconsistencies, and outliers that could affect the analysis.
  3. Data Analysis: Utilize statistical methods, data mining techniques, and machine learning algorithms to analyze data and identify trends, correlations, and patterns.
  4. Data Visualization: Create visually appealing and easy-to-understand charts, graphs, and dashboards to present the insights effectively.
  5. Reporting: Prepare comprehensive reports and presentations to communicate findings to management and other stakeholders.
  6. Business Insights: Translate data analysis into actionable business insights and recommendations to support decision-making processes.
  7. Database Management: Maintain and manage databases, ensuring data integrity and security.
  8. Continuous Learning: Stay updated with the latest trends, tools, and technologies in data analysis to enhance skills and knowledge.

During a job interview, bringing up these interesting facts about the data analyst role can demonstrate your enthusiasm for the position and highlight the exciting and rewarding aspects of being a data analyst. It also shows that you are well-informed about the profession and have a genuine interest in contributing to the organization's success:

  1. Impactful Decision-making: As a data analyst, one gets the opportunity to contribute significantly to an organization's decision-making process by providing valuable insights and data-driven recommendations.
  2. Diverse Industries: Data analysts can work across various industries, such as finance, healthcare, e-commerce, technology, and government, allowing them to explore different sectors and gain versatile experience.
  3. Problem-Solving Variety: The job offers a diverse range of problem-solving challenges, from uncovering patterns in customer behavior to optimizing supply chain efficiency, ensuring that no two days are the same.
  4. Continuous Learning: Data analysts are continually exposed to new tools, technologies, and analytical methods, making it a profession that fosters continuous learning and skill development.
  5. High Demand: With the increasing emphasis on data-driven decision-making, data analysts are in high demand, providing excellent job stability and numerous career opportunities.
  6. Innovative Technologies: Working in the field of data analysis means leveraging cutting-edge technologies like artificial intelligence, machine learning, and data visualization tools.
  7. Collaborative Environment: Data analysts often work in cross-functional teams, collaborating with professionals from diverse backgrounds, fostering a dynamic and enriching work environment.
  8. Real-World Impact: Data analysts can witness the tangible impact of their work, as their insights often lead to improved business strategies, cost savings, and enhanced customer experiences.
  9. Continuous Growth: Data analysts can evolve into specialized roles like business intelligence analysts, data scientists, or data engineers, creating a clear pathway for career advancement.
  10. Global Opportunities: The data analysis field offers opportunities to work in various locations and even on remote projects, providing a chance to experience different cultures and work in a global context.



Hiring Process

The hiring process for a data analyst role typically involves several steps to assess the candidate's skills, qualifications, and fit for the position. Job seekers should prepare thoroughly for each stage of the hiring process, showcasing their technical skills, analytical abilities, and suitability for the data analyst role. Researching the company, understanding their data-related challenges, and aligning their experiences with the job requirements can significantly enhance their chances of landing the position. Here's a quick description of each step that would be helpful for a job seeker:

  1. Job Application: The first step is to submit a comprehensive job application, including a resume and cover letter. Tailor your application to highlight relevant data analysis skills and experiences.
  2. Resume Screening: The hiring team will review submitted resumes to shortlist candidates based on their qualifications, experience, and alignment with the job requirements.
  3. Initial Interview: Shortlisted candidates are often invited for an initial interview. This may be conducted via phone or video call and serves as an opportunity for the employer to learn more about the candidate's background and interest in the role.
  4. Technical Assessment: Some companies may require candidates to take a technical assessment or skills test to evaluate their data analysis proficiency. This could involve solving data-related problems or working with datasets.
  5. In-Person or Virtual Interview: Candidates who perform well in the initial interview and technical assessment may be invited for an in-person or virtual interview. This interview typically dives deeper into the candidate's technical skills, problem-solving abilities, and data analysis techniques.
  6. Behavioral Interview: In addition to technical skills, employers also assess a candidate's behavioral fit within the team and organization. Behavioral interviews may focus on past experiences, teamwork, communication, and how the candidate handles challenges.
  7. Case Study or Presentation: Some employers may ask candidates to prepare and present a case study or analysis during the interview process. This assesses the candidate's ability to analyze data, draw insights, and present findings coherently.
  8. Reference Checks: After a successful interview, the employer may conduct reference checks to validate the candidate's qualifications and work history.
  9. Job Offer: If the candidate performs well in all stages of the hiring process, the employer extends a job offer, outlining the details of the position, salary, benefits, and other relevant information.
  10. Negotiation and Acceptance: Upon receiving the job offer, the candidate may engage in salary negotiation and other terms before formally accepting the offer and commencing the onboarding process.

Job Interview Questions

Here are some typical, interesting, and unusual data analyst job interview questions along with recommended answers and considerations for job seekers. By addressing these considerations and preparing thoughtful responses to interview questions, job seekers can increase their chances of success in securing a data analyst position.

  1. Typical Question: Question: "Tell me about a challenging data analysis project you worked on. What was your approach, and how did you overcome any obstacles?"

    Recommended Answer: Provide a brief overview of the project, including the data sources, objectives, and any challenges faced. Describe your analytical approach, including data cleaning, analysis techniques, and visualization methods used. Highlight any innovative solutions or insights gained from the project.

    Considerations: Emphasize your problem-solving skills, ability to work with complex datasets, and your capacity to communicate findings effectively to stakeholders.

  2. Interesting Question: Question: "If you were given access to our company's data, what specific analyses would you perform, and why?"

    Recommended Answer: Demonstrate your understanding of the company's business objectives and industry trends. Discuss potential analyses such as customer segmentation, predictive modeling, or identifying trends in sales data. Explain how these analyses could provide valuable insights and support decision-making within the organization.

    Considerations: Tailor your response to the company's unique needs and challenges. Showcase your ability to think critically about data and generate actionable recommendations.

  3. Unusual Question: Question: "If you could only use one data analysis tool or programming language for the rest of your career, which one would you choose, and why?"

    Recommended Answer: Select a tool or language that aligns with the job requirements and your preferred analytical approach. Explain your choice based on factors such as functionality, versatility, and industry adoption. For example, you might choose Python for its robust libraries and flexibility in handling various data types.

    Considerations: Use this question as an opportunity to demonstrate your knowledge of different data analysis tools and programming languages. Highlight your adaptability and willingness to learn new technologies as needed.

Considerations for Job Seekers:

  • Technical Skills: Ensure you have a strong foundation in data analysis techniques, statistical methods, and programming languages commonly used in the field, such as Python, R, SQL, and Excel.
  • Domain Knowledge: Familiarize yourself with the industry or sector in which the company operates. Understanding the business context and relevant metrics will enhance your ability to perform meaningful analyses and provide actionable insights.
  • Communication Skills: Practice articulating your analyses, insights, and recommendations in a clear and concise manner. Effective communication is essential for collaborating with colleagues, presenting findings to stakeholders, and driving decision-making.
  • Problem-Solving Abilities: Be prepared to discuss your approach to solving complex analytical problems, including data cleaning, hypothesis testing, and model building. Showcase your critical thinking skills and ability to adapt to evolving challenges.
  • Portfolio and Projects: Highlight any relevant projects, internships, or certifications that demonstrate your data analysis skills and experience. A strong portfolio can set you apart from other candidates and provide tangible evidence of your capabilities.


Day in Life

Here's a typical day in the life of a data analyst, along with strategies for managing job responsibilities and reducing stress.

By following these strategies and maintaining a balanced approach to work responsibilities, data analysts can effectively manage their job responsibilities while reducing stress and promoting overall well-being.


  1. Review Priorities: Start the day by reviewing priorities and deadlines for ongoing projects. Check emails and messages for any urgent requests or updates from team members or stakeholders.
  2. Data Preparation: Dedicate time to data preparation tasks, such as cleaning, organizing, and validating datasets. Use tools like SQL, Python, or Excel to manipulate data and ensure its accuracy and completeness.
  3. Analysis and Modeling: Dive into data analysis and modeling activities, such as running statistical analyses, building predictive models, or creating visualizations to identify patterns and insights. Collaborate with team members to discuss findings and refine analytical approaches.


  1. Meetings and Collaboration: Attend meetings with cross-functional teams to discuss project progress, share insights, and align on next steps. Collaborate with colleagues from departments like marketing, finance, or operations to understand their data needs and provide analytical support.
  2. Report Generation: Generate reports and dashboards to communicate key findings and metrics to stakeholders. Use tools like Tableau, Power BI, or Google Data Studio to create interactive visualizations and presentations that facilitate decision-making.
  3. Skill Development: Take time to invest in skill development by exploring new analytical techniques, attending webinars or workshops, or completing online courses to stay updated with the latest trends and technologies in data analysis.


  1. Documentation: Document your analysis methodology, assumptions, and results to ensure transparency and reproducibility. Update project documentation and share insights with team members for reference and future collaboration.
  2. Reflection and Planning: Reflect on the day's achievements and challenges. Identify areas for improvement and plan strategies to optimize workflows, streamline processes, and enhance productivity in future projects.

Strategies for Managing Job Responsibilities and Reducing Stress:

  1. Time Management: Prioritize tasks based on importance and urgency to ensure efficient use of time. Break down large projects into smaller, manageable tasks and allocate time for each task accordingly.
  2. Communication: Maintain open and clear communication with team members and stakeholders to avoid misunderstandings and minimize rework. Set realistic expectations regarding project timelines and deliverables to reduce pressure and stress.
  3. Work-Life Balance: Establish boundaries between work and personal life to prevent burnout. Take regular breaks throughout the day, and disconnect from work during non-working hours to recharge and rejuvenate.
  4. Stress Management Techniques: Incorporate stress management techniques such as mindfulness, deep breathing exercises, or physical activity into your daily routine to promote relaxation and mental well-being.
  5. Seek Support: Reach out to colleagues, mentors, or supervisors for support and guidance when facing challenges or feeling overwhelmed. Don't hesitate to ask for help or delegate tasks to alleviate workload pressure.

Job Growth Opportunities

The growth potential for Data Analysts over the next 3-5 years is significant, driven by several factors including the increasing reliance on data-driven decision-making across industries, advancements in technology and analytics tools, and the growing demand for professionals with strong analytical skills.

By focusing on these considerations and continuously refining their skills and expertise, job seekers can position themselves for success in the growing field of Data Analysis and capitalize on the abundant opportunities available in the coming years.

Here are some details and considerations important for job seekers to understand to capitalize on this growth potential and get hired:

  1. Expanding Job Market: The demand for Data Analysts is expected to continue growing as organizations across sectors recognize the value of data-driven insights for improving efficiency, optimizing processes, and gaining a competitive edge in the market.
  2. Diverse Industry Opportunities: Data Analyst roles are not limited to specific industries but are prevalent across sectors such as finance, healthcare, retail, technology, marketing, and government. Job seekers can explore opportunities in industries that align with their interests and career goals.
  3. Technical Skills: Employers look for candidates with strong technical skills in data analysis tools and programming languages such as SQL, Python, R, and proficiency in data visualization tools like Tableau or Power BI. Job seekers should invest in building and refining these technical skills through education, certification programs, and practical experience.
  4. Domain Knowledge: In addition to technical skills, domain knowledge is valuable for Data Analyst roles. Job seekers should have a solid understanding of the industry they are targeting, including key metrics, trends, and challenges. Acquiring domain-specific knowledge through coursework, internships, or relevant work experience can enhance job prospects.
  5. Problem-Solving Abilities: Data Analysts are tasked with solving complex business problems using data-driven approaches. Employers seek candidates who demonstrate critical thinking, analytical reasoning, and problem-solving skills. Job seekers should showcase their ability to analyze data, draw actionable insights, and provide strategic recommendations.
  6. Communication Skills: Effective communication is essential for Data Analysts to translate technical findings into actionable insights for non-technical stakeholders. Job seekers should demonstrate strong verbal and written communication skills, including the ability to present complex information in a clear and concise manner.
  7. Adaptability and Continuous Learning: The field of data analysis is dynamic, with new technologies, tools, and methodologies emerging regularly. Job seekers should demonstrate adaptability and a willingness to learn and adapt to evolving trends in data analysis. Pursuing continuing education, attending workshops, and staying updated with industry developments can enhance employability.
  8. Portfolio and Projects: Building a strong portfolio showcasing relevant projects, analyses, and visualizations is essential for demonstrating practical skills and experience to potential employers. Job seekers should undertake personal projects, participate in hackathons, or contribute to open-source projects to build a compelling portfolio.

Data Analyst Cognitive Test

Companies use cognitive tests when hiring data analysts for several reasons, primarily to assess critical skills and cognitive abilities essential for success in the role. Data analysts are responsible for extracting insights from complex datasets, and cognitive tests provide a standardized way to evaluate candidates' analytical reasoning, problem-solving, and logical thinking skills. These assessments help ensure that individuals have the intellectual capacity to comprehend intricate data structures and formulate effective analytical strategies.

Cognitive tests also play a crucial role in predicting job performance. By measuring cognitive abilities such as numerical reasoning, data interpretation, and pattern recognition, companies can make informed decisions about a candidate's potential to excel in data analysis tasks. The nature of the work often requires individuals to navigate and interpret data swiftly, and cognitive tests provide a snapshot of a candidate's ability to process information efficiently.

Furthermore, cognitive tests contribute to the overall objectivity and fairness of the hiring process. By relying on standardized assessments, companies can minimize biases and make more consistent evaluations across candidates. This is particularly important in roles where analytical skills are paramount, as it ensures that candidates are assessed on a level playing field.

The use of cognitive tests aligns with the growing demand for data-driven decision-making. As organizations increasingly rely on data to inform strategies, companies seek data analysts who not only possess technical skills but also have the cognitive capacity to derive meaningful insights. Cognitive tests help identify candidates who can connect data analysis with broader business objectives, enhancing the overall impact of the role.

Moreover, cognitive assessments provide valuable insights into a candidate's ability to handle ambiguity and adapt to changing situations, which are essential attributes in the dynamic field of data analytics. The complexity of data analysis tasks often requires individuals to approach problems from different angles and make decisions under uncertainty, making cognitive assessments a valuable tool in evaluating a candidate's adaptability.

If you need to practice for data analyst cognitive test make sure to try sample practice test and check out our preparation materials here.

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Required Skills and Qualifications

The Data Analyst position requires strong analytical skills and the ability to think critically to solve complex problems. Proficiency in data manipulation using tools like SQL, Excel, Python, or R is essential, along with knowledge of statistical concepts and techniques for data analysis. Excellent communication skills are necessary to convey findings effectively to non-technical stakeholders, and attention to detail is crucial to ensure data accuracy and reliability.

Typical required skills to get hired as data analyst are:

  1. Analytical Skills: A strong aptitude for analyzing data and the ability to think critically and solve problems.
  2. Technical Skills: Proficiency in data manipulation using tools like SQL, Excel, Python, R, or other statistical software.
  3. Data Visualization: Familiarity with data visualization tools such as Tableau, Power BI, or matplotlib for presenting findings.
  4. Mathematics and Statistics: Knowledge of statistical concepts and techniques, including hypothesis testing, regression analysis, and data sampling.
  5. Communication: Excellent verbal and written communication skills to convey complex findings to non-technical stakeholders.
  6. Attention to Detail: Thoroughness in data cleaning and validation to ensure accuracy and reliability of analysis.
  7. Domain Knowledge: Familiarity with the industry or business domain in which the data analyst will be working is advantageous.



There are a lot of different categories of companies that hire data analysts. This is why job seekers should consider their interests, preferred industry, and long-term career goals when targeting employers. Each employer offers unique opportunities and challenges, and joining a company that aligns with one's aspirations can lead to a fulfilling and rewarding career as a data analyst.

The most popular employers that hire data analysts are:

  1. Technology Companies (e.g., Google, Microsoft, Amazon): Technology giants like Google, Microsoft, and Amazon are among the largest employers of data analysts. They handle massive amounts of data across various platforms and industries, offering diverse and challenging projects. Working for these companies provides exposure to cutting-edge technologies and a fast-paced, innovative environment, which can greatly enhance a data analyst's skillset and open up future career opportunities.
  2. Financial Institutions (e.g., JPMorgan Chase, Goldman Sachs, Citibank): Major banks and financial institutions heavily rely on data analysts to analyze financial data, identify trends, and make strategic decisions. Job seekers in the financial industry can benefit from exposure to complex financial data, gaining insights into market trends and the potential for career growth within the finance sector.
  3. Consulting Firms (e.g., Deloitte, Accenture, McKinsey & Company): Consulting firms hire data analysts to support their clients in diverse industries. As a data analyst in a consulting firm, job seekers can expect exposure to a wide range of projects, valuable networking opportunities, and the chance to work with high-profile clients. This experience can lead to accelerated career advancement and the development of a versatile skillset.
  4. Healthcare Organizations (e.g., Mayo Clinic, Kaiser Permanente, UnitedHealth Group): Healthcare organizations are increasingly leveraging data analytics to improve patient outcomes and optimize healthcare processes. Data analysts in this sector can make a significant impact by analyzing medical data, patient demographics, and treatment trends. Job seekers interested in healthcare can benefit from a fulfilling career that positively affects people's lives.
  5. E-commerce Companies (e.g., Alibaba, eBay, Shopify): E-commerce companies heavily rely on data analysis to understand consumer behavior, optimize marketing strategies, and enhance the user experience. Working for such companies offers exposure to vast datasets and opportunities to influence key business decisions. Data analysts can further develop their skills in customer analytics and contribute to the growth of the rapidly evolving e-commerce industry.
  6. Government Agencies (e.g., National Aeronautics and Space Administration (NASA), U.S. Census Bureau, Federal Reserve): Government agencies require data analysts to interpret and manage data for various purposes, including research, policy-making, and public services. Job seekers in the public sector can benefit from job stability, opportunities to work on projects with societal impact, and exposure to diverse datasets.
  7. Retail Companies (e.g., Walmart, Target, Amazon Retail): Retailers employ data analysts to optimize inventory management, pricing strategies, and customer satisfaction. Job seekers in the retail industry can gain valuable experience in retail analytics, understanding consumer preferences, and contributing to the success of well-established brands.



Other Data Analyst Assessments

In addition to Excel Test and Cognitive Test employers use a variety of assessment tests to evaluate candidates for the data analyst role. Employers may use a combination of these tests to gain a comprehensive understanding of a candidate's analytical, technical, and communication skills, as well as their problem-solving abilities and fit for the data analyst role. It's essential for candidates to prepare for these assessments by practicing sample tests and showcasing their strengths during the hiring process. Here are the 5-7 most appropriate tests commonly used for this position:

  1. Data Analyst Numerical Reasoning Test: This test assesses a candidate's ability to interpret and work with numerical data, which is essential for data analysts who frequently deal with quantitative information and financial data.
  2. Data Analyst Logical Reasoning Test: Data analysts must be skilled in logical thinking and problem-solving. This test evaluates a candidate's ability to analyze and draw logical conclusions based on given information.
  3. Data Analyst Psychometric Test: Psychometric tests evaluate a candidate's cognitive abilities, personality traits, and behavioral tendencies, helping employers assess their suitability for the data analyst role and their potential team dynamic.
  4. Data Analyst Situational Judgement Test (SJT): SJTs present candidates with hypothetical workplace scenarios and ask them to choose the most appropriate responses. This test assesses a candidate's judgment and decision-making skills, crucial for data analysts who often face complex situations.
  5. Data Analyst Verbal Reasoning Test: Data analysts must be able to comprehend written information and communicate effectively. This test assesses a candidate's ability to understand and evaluate verbal data.


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Excel Test During Data Analyst Hiring Process

An Excel test for a data analyst evaluates the candidate's proficiency in using Microsoft Excel for data-related tasks. The test may cover a range of skills, including data manipulation, formula creation, and spreadsheet organization.

Candidates might be asked to perform tasks such as sorting and filtering data, using functions like VLOOKUP and SUMIFS, creating pivot tables, and generating charts for data visualization. The goal is to assess the candidate's ability to leverage Excel's features for efficient data analysis and reporting.

Employers use Excel assessment tests for data analyst roles during the hiring process for several reasons:

  1. Relevance to the Role: Excel is a fundamental tool for data analysts, widely used for data manipulation, analysis, and visualization. Assessing a candidate's proficiency in Excel helps employers ensure they have the necessary technical skills for the job.
  2. Efficiency and Standardization: Excel assessment tests allow employers to efficiently evaluate a large number of candidates in a standardized manner. It helps them compare candidates objectively based on their Excel capabilities.
  3. Data Handling Skills: Data analysts need to work with large datasets, and Excel is commonly used for data cleaning, sorting, and filtering. The assessment test assesses a candidate's ability to handle and manipulate data effectively.
  4. Data Visualization: Excel offers various tools for creating charts and graphs to visualize data. Employers may want to assess a candidate's ability to present data in a visually appealing and easy-to-understand manner.
  5. Problem-Solving Abilities: Excel assessment tests often include scenarios that require candidates to solve data-related problems, demonstrating their problem-solving and critical thinking skills.

Tips for Passing Excel Assessment Test:

  1. Review Excel Functions: Familiarize yourself with common Excel functions such as VLOOKUP, SUMIFS, COUNTIFS, AVERAGE, and IF statements. Practice using these functions to manipulate and analyze data.
  2. Data Manipulation Techniques: Practice data cleaning, filtering, and sorting tasks in Excel. Understand how to remove duplicates, convert data formats, and perform other data manipulation operations.
  3. Pivot Tables and Charts: Learn how to create pivot tables and pivot charts to summarize and visualize data. Practice using these features to analyze datasets efficiently.
  4. Keyboard Shortcuts: Familiarize yourself with essential Excel keyboard shortcuts to improve your efficiency during the assessment test.
  5. Practice Sample Tests: Take practice Excel assessment tests online. These tests simulate real assessment scenarios and can help you become familiar with the format and types of questions.
  6. Manage Time Wisely: During the assessment test, manage your time effectively to attempt all questions. If you encounter a challenging question, move on and come back to it later if time permits.
  7. Read Instructions Carefully: Pay attention to the instructions provided for each question. Understand the requirements before attempting to solve the problem.
  8. Double-Check Your Work: Before submitting your answers, review your work to ensure accuracy and correctness.
  9. Stay Calm and Focused: Excel assessment tests can be time-pressured, but try to remain calm and focused. Avoid rushing and carefully read each question.

By preparing thoroughly and practicing Excel skills, you can approach the assessment test with confidence and increase your chances of performing well. Make sure to check out Excel Test for Data Analyst to start practicing. Demonstrating your proficiency in Excel during the hiring process will showcase your readiness to excel in the data analyst role.

Video: Excel Interview Questions For Data Analyst


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What are the biggest challenges you might run, when doing data analysis?

Even though each situation might be different, below are the typical challenges that data analysts might run into, when trying to solve business problem

  • Importing the data into Excel or other tool used (how to convert data provided in one format and bring it into Excel). This might get even more complicated with larger data volumes.
  • Data Cleansing challenges
    • Presence of Duplicate entries and spelling mistakes, reduce data quality.
    • If you are extracting data from a poor source, then this could be a problem as you would have to spend a lot of time cleaning the data.
  • Working with multiple sources: when you combine data from these sources, it may happen that the variation in representation could result in a delay.
  • Quality of the data: if there is incomplete data, then that could be a problem to perform analysis of data
  • Selecting the best vehicle to present results: best way to communicate the findings to decision makers in the format easiest to understand. (reports, charts or dashboards)

How to assess quality of the data model?

Even though the answer might vary, below are some criteria to assess the quality of the data model:

  • Can model be easily consumed by end users (customers) to help facilitate decision making process?
  • Can model support future extensions and future extensions?
  • Can model easily support generation of output format: reports or dashboards?


What is the process of Data Analysis?

Data Analysis the process of collecting, cleaning, interpreting, transforming and modeling data to gather insights and generate reports to help make business decisions. Typically data analysis can be broken down into multiple steps:

  • Data Sources Identification: As part of this step data sources are being identified and ways of extracting and importing the data are being analyzed. This is necessary so that data from master sources can then be used for analysis.
  • Data Import: The data gets collected from various sources and is stored so that it can be cleaned and prepared. In this step, all the missing values and outliers are removed.
  • Analyze Data: Once the data is ready, the next step is to analyze the data. A model is run repeatedly for improvements. Then, the mode is validated to check whether it meets the business requirements.
  • Report Generation: Once the model is implemented and then reports can be generated to help facilitate decision making process.


Excel Formulas and Functions Questions

What are the benefits of using formulas in Excel sheet?

Formula makes it easy to calculate the numbers in Excel sheet. It also calculates automatically the number replaced by another number or digit. It is used to make complex calculations easy.


What are the most used functions in Microsoft Excel?

Following are the functions available in Excel for manipulating the data:

  • Common Functions – SUM, AVERAGE, MIN, MAX
  • Math and Financial Functions – SQRT, DEGREE, RAND(), GCD
  • Logical Functions – IF, AND, Or, FALSE, TRUE
  • Date and Time functions – NOW(), DATEVALUE(), WEEKDAY(NOW())
  • Index Match functions – VLOOKUP and INDEX MATCH


How we can calculate average?

We can calculate average by using average formula which will help you to calculate average of any list.


Which formula is use for sum if there is a condition?

Sumif, Sumifs and Dsum formulas are used to get conditional sum, conditional sum means when you want a sum of one value from a range.


What is the function of SUMIF?

SUMIF is use to get a sum when there is one condition. (It uses one range, one criteria, and one Sum range)


What is the function of Sumifs? And difference between sumif and sumifs?

SUMIFS is use when you have multiple criteria to sum. It uses one sum range, and multiple criteria ranges to calculate a sum of a specific criteria’s.


What is the difference between Sumifs and DSum?

Sumif and Dsum both are use to calculate a sum when there is multiple criteria’s. but the main difference between both functions are:

  • Dsum need heading of the table to sum but Sumif not required.
  • Sumif or sumifs need all criteria’s to be written at a time otherwise answer will be zero but the dsum not required all criteria to be written.



Data Analyst Excel How-To Questions

How can you wrap the text within a cell?

You must select the text you want to wrap, and then click wrap text from the home tab and you can wrap the text within a cell.


How would you hide or show the ribbon?

You can hide or show (minimize or maximize) the ribbon pressing a “^” button at the button right corner of the ribbon (see image below where button is highlighted in red) or by pressing CNTRL F1.


How to remove leading / trailing spaces in a text in Excel?

To remove of leading, trailing, and double spaces, you need to use the TRIM function.

For example, if you have a text string in cell A1 and you want to remove the spaces, you can use the following formula:


TRIM function doesn't remove single spaces between words.



Excel Keyboard Shortcuts Questions

What is the keyboard shortcut to put the filter on data in Microsoft Excel ?

User would need to select the top row of data you need to apply quick filter to and press Ctrl+Shift+L keyboard shortcut key to put the filter in data.


Which keyboard shortcut would you use to move to the previous worksheet and next sheet?

To move to the previous worksheet, you will use the keys Ctrl + Pg Up, and to move to the next sheet you will use keys Ctrl + PgDown.


What is the keyboard shortcut to Hide/Show Ribbon in Excel?

Ribbon refers to the topmost area of the application that contains menu items and toolbars available in MS-Excel. Ribbon can be shown/hidden using CTRL+F1.


What is the keyboard shortcut to put the filter on data in Microsoft Excel 2016 or Excel 2019?

Answer: Select the top row of data you need to apply quick filter to and press Ctrl+Shift+L keyboard shortcut key to put the filter in data.


Excel Conceptual Questions

How can you sum up the Rows and Column number quickly in the Excel sheet?

By using SUM function, you can get the total sum of the rows and columns, in an Excel worksheet and the short key auto sum is ALT + =.


What are the typical errors in Excel?

Below are the typical errors in Excel:

      • #N/A Error: ‘Value Not Available’ error. You will see this when you use a lookup formula and it can’t find the value (hence Not Available).
      • #DIV/0! Error: Typically this error is displayed when a number is divided by 0. This is called the division error.
      • #VALUE! Error: Typically this error occurs when you use an incorrect data type in a formula.
      • #REF! Error: Typically this error occurs when reference in the formula is no longer valid. This could be the case when the formula refers to a cell reference and that cell reference does not exist (happens when you delete a row/column or worksheet that was referred in the formula).
      • #NAME ERROR: This error is likely to a result of a misspelled function.
      • #NUM ERROR: Number error can occur if you try and calculate a very large value in Excel. For example, =194^643 will return a number error.




Strategies to Prepare & Pass the Test

Remember, preparation and practice are key to succeeding in the data analyst job hiring process. By focusing on enhancing your technical skills, understanding the role's requirements, and showcasing your passion for data analysis, you can stand out as a strong candidate and increase your chances of getting hired.

Preparing for the data analyst job hiring process and assessment tests is crucial to increase your chances of success. Here are some strategies, tips, and tricks to help you excel during the job interview and employment assessment tests:

  1. Understand the Job Description: Thoroughly review the data analyst job description to understand the specific skills and qualifications the employer is seeking. Tailor your resume, cover letter, and interview responses to highlight relevant experiences and technical skills.
  2. Enhance Technical Skills: Data analysts need proficiency in various tools and programming languages. Focus on improving your skills in SQL, Excel, Python, R, and data visualization tools like Tableau or Power BI. Online tutorials, courses, and practice projects can be beneficial.
  3. Practice Data Analysis Projects: Work on sample data analysis projects or participate in online competitions to practice your analytical skills and gain practical experience. Showcase these projects in your portfolio or during the interview to demonstrate your capabilities.
  4. Review Statistics and Mathematics: Brush up on statistical concepts and mathematical principles used in data analysis. Familiarize yourself with hypothesis testing, regression analysis, and other common statistical techniques.
  5. Practice Assessment Tests: Take practice tests for numerical reasoning, logical reasoning, verbal reasoning, and any other assessment tests that might be part of the hiring process. Practice will help you become more comfortable with the format and improve your performance.
  6. Case Study Preparation: If a case study or presentation is part of the interview process, practice presenting your findings concisely and clearly. Focus on providing actionable insights and recommendations based on the data.
  7. Research the Company: Learn as much as you can about the company's data-related challenges, projects, and industry trends. Being informed will enable you to ask relevant questions during the interview and showcase your interest in the organization.
  8. Review Your Past Work: Be prepared to discuss your past data analysis projects or experiences. Highlight any achievements or challenges you faced and how you overcame them.
  9. Improve Communication Skills: Data analysts need to communicate complex information to non-technical stakeholders. Practice explaining technical concepts in a clear and understandable manner during the interview.
  10. Be Curious and Ask Questions: Show your curiosity about the company's data infrastructure, data sources, and data-driven decision-making processes. Asking thoughtful questions demonstrates your genuine interest in the role.
  11. Time Management: During assessment tests, manage your time effectively to attempt all questions. If you get stuck on a difficult question, move on and come back to it later if time permits.
  12. Stay Calm and Confident: During the interview and assessment tests, stay calm and composed. Confidence in your abilities will make a positive impression on the hiring team.

Good luck with your preparation and assessments! Hope you will get hired quickly!


Why Prepare with JobTestPrep Practice Materials

  1. Realistic Test Simulation: JobTestPrep provides practice tests that accurately replicate the format and difficulty level of the actual test, allowing you to prepare effectively for the real assessment.
  2. Eliminate Stress by Practicing Time Management Practice: Practicing with time limits helps you improve your speed and accuracy during the test, ensuring you can efficiently complete all sections within the allotted time.
  3. Get Detailed Feedback and Customized Study Plan: JobTestPrep's practice tests offer detailed feedback and personalized study plans based on your performance, enabling targeted improvement and optimized study time.

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Steve Punyali

Thank you very much, your presentation is very useful to learn. God bless you.


Another excellent tutorial. I opened my own blank worksheet and copied the original and used pause to carry out step by step what was taught. I'm proud of my work and my 3-D chart all within the print area. This style of tutorial works really well for me. Thank you so much, Vadim you are the Best.

Barry FitzHugh

Vadim, outstanding classroom instruction methodology, sir, very helpful, love the soothing background music, your meticulous attention to detail makes for indelible subject matter retention, Bravo! Bravo!

Yu-Jun E

Thank you!! I just passed my excel test that I needed to be promoted!!


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Bass Monkey

Im in 8th grade and this was very very helpful to get me to pass my excel certification!!

You Already Know

Thanks for the tutorial. Had my interview/ performance excel test today. I used some of your tips. They came in handy. I will know in two weeks if I got the gig. Thanks!!!

Ahmed H.

Great information and excellent information. Just what I needed to pass my Excel Employment Interview. Kudos to you and good for me. Muchas gracias and thanks very much.

Karla Eusebio

Thank you so much! I always get anxious during excel practical examinations because I only know basics. This helped me a lot.

RoseRose RoseRose

Am learning a lot. Thank you very much my friend. Bless you.

Natasha Lauren

Vadim, your uploads are really helpful for me as I'm a relative newbie to Excel. I think your style of presenting is perfect for demonstrating Excel and I'm very grateful for the Bonus question at the end as I'm learning financial mathematics. Thanks again brother, keep up the good work!

Akim Eusebio

Thank you so much! I always get anxious during excel practical examinations because I only know basics. This helped me a lot.

Podina Tutorials

insane and in perfect Tutorial. thanks ! Would love to see more Tutorials form you, more in depth with examples, than the one you made.

Alexandra D

I just completed the quiz successfully! 7 questions were asked same way in the video! Will definitely learn Excel now! However it's not required for me but good to have Excel knowledge


This information is excellent the way you explain it, thank you!

Connella Cyrus

Thanks a MILLION. I've learnt so much. You are a very good teacher. Thank you!!

Gilbert K

Thank you for the Video. I just aced the assessment. I was a little scared though because only about 5 of the questions from here came but I wouldn't have passed this if not of this video, gracias.

Next Step: Prepare for the Assessment Test

Preparing for a data analyst employment assessment test can be a daunting task, but practicing beforehand can significantly improve your chances of success. Below are 3 reasons why you might consider to get prepared by practicing using materials from JobTestPrep.

Using JobTestPrep practice materials can be an effective way to prepare for the employment assessment test, helping you to build confidence and increase your chances of success. By following these tips and practicing regularly, you can improve your chances and succeed on the test. Select the best Option for the assessment among the tests listed below:

  1. Data Analyst Cognitive Ability Test: Cognitive ability tests assess candidates' problem-solving, analytical, and reasoning skills, which are essential for a wide range of positions.
  2. Microsoft Excel Test: An Excel test for a data analyst typically assesses the candidate's proficiency in using Microsoft Excel for tasks such as data manipulation, analysis, and visualization, often including functions, formulas, and data formatting.

All the best on your job interview and assessment test! Good luck & I truly hope you will get hired soon!

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