UiPath Interview Questions and Answers

Introduction

UiPath is a tool for automating repetitive tasks and is used across many industries, including banking, healthcare, finance, retail, and IT. Companies use UiPath to make their work easier, reduce work, and make their operations more efficient. More businesses look to automate their work, and knowing how to use UiPath has become a valuable skill when looking for a job. Employers want people to understand the basics of UiPath, such as workflows, selectors, Orchestrator handling exceptions, and real-world automation examples. This guide to UiPath Interview Questions and Answers helps beginners, experienced learners, and professionals prepare confidently for UiPath interviews. Discover our UiPath Course Syllabus to begin your automation learning journey.

UiPath Interview Questions for Freshers

1. Can you explain what RPA is and why it is used?

RPA, or Robotic Process Automation, is a technology that uses software bots. These bots perform human actions in digital systems. It is primarily used to automate repetitive, rule-based tasks, helping organizations reduce manual effort, improve accuracy, and increase productivity.

2. What are the key components of the UiPath platform?

• UiPath Studio: Used to design automation workflows. It uses drag-and-drop features.
• UiPath Robot: This executes automation workflows made in Studio.
• UiPath Orchestrator: Web-based tool. It manages, schedules, and monitors bots.

3. What is the difference between Attended and Unattended Robots?

Attended robots work with humans. Humans trigger them to assist in tasks. Unattended robots run alone. They do not need help. They are used for scheduled business processes.

4. What are Variables and Arguments in UiPath?

• Variables are used to store data in a workflow. This data can be text, a number, or a date.
• Variables in UiPath store data within a workflow.
• Arguments are used to pass data between workflows or files.
• There are three types of arguments in UiPath: In, Out, and In/Out.

5. What are the main types of workflows in UiPath Studio?

There are main types of workflows in UiPath.

• Sequence: Used for step-by-step processes.
• Flowchart: Used in workflows that contain many conditional rules.
• State machine: Used for automation that has states and transitions.

These are the types of workflows in UiPath.

6. What is the purpose of the Assign activity?

The Assign activity is used to store or update values in variables. It is also used for calculations or data manipulation. For example, it can be used to increment a counter or update a text value.

7. What is a Selector in UiPath?

• A Selector in UiPath is an XML-based structure. It is used to identify UI elements.
• It works like an address for buttons, fields, or windows.
• This helps the robot interact with the element on the screen.

8. Explain the difference between Basic and Desktop Recording.

• Basic Recording in UiPath creates selectors for each action. It is best for tasks.
• Desktop Recording in UiPath uses selectors and groups actions, making it more efficient for complex workflows

9. How do you handle exceptions and errors in UiPath?

• Exceptions in UiPath are handled using the Try Catch activity.
• The Try block contains the process.
• The Catch block captures and handles runtime errors.
• The finally block is always executed, with or without exceptions.
• This ensures that automation workflows run smoothly and are controlled.

10. What is Screen Scraping?

• Screen scraping in UiPath is used to extract text from applications. 
• This is done when normal copy-paste is not possible.
• It is used in legacy systems or Citrix environments.
• It uses OCR, Full Text, or Native methods for data extraction.

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11. What is Data Scraping?

• Data scraping in UiPath is used to extract data. This data can be tables or lists from websites or applications.
• The extracted data can be saved into Excel files or data tables.
• The data can be utilized for additional processing and analytical tasks.

12. How do you secure sensitive credentials in UiPath?

• Credentials in UiPath should not be stored directly in workflows.
• They should be stored securely in Orchestrator as Credential Assets.
• They should be retrieved using the Get Credential activity for usage.

13. What is the REFramework?

REFramework in UiPath is a project template. It is used to build scalable automation solutions. It includes built-in features like exception handling, logging, retries, and transaction management. This makes it suitable for real-world enterprise automation.

14. What are Orchestrator Queues?

• Orchestrator Queues in UiPath store amounts of data as queue items.
• Each item is called a transaction.
• This allows multiple robots to process tasks simultaneously.
• It improves the performance and scalability of automation processes.

15. What is the difference between UiPath and Selenium?

UiPath is an RPA tool. It is used for automating business processes across web, desktop, email, and enterprise applications. It does not require coding. Selenium, on the other hand, is mainly used for automating and testing web applications. It requires programming knowledge. UiPath and Selenium are tools used for different purposes.

UiPath Interview Questions for Experienced Candidates

1. Can you explain the components of the Robotic Enterprise Framework (REFramework) and its states?

The Robotic Enterprise Framework is a reusable UiPath template.  It is built on a State Machine. The framework has features like logging, exception handling, and retry mechanisms.

The four main states are:

• Init: This loads configuration settings. Starts applications.
• Get Transaction Data: This gets the transaction item to process.
• Process Transaction: This does the work.
• End Process: This closes applications. Finishes the process.

2. How do Business Exceptions differ from Application Exceptions in REFramework?

• Business Exception 
  • Occurs when a business rule is violated
  • For example, the invoice amount is wrong. 
  • The transaction is marked as failed without retry.
• Application Exception 
  • Occurs due to technical or system-related issues. 
  • For example, an application crashes. 
  • The transaction can be retrieved.

3. What is the Global Exception Handler, and when should it be used?

The Global Exception Handler manages errors. It helps bots by deciding what to do when an exception occurs.

• Common actions include:
  • Abort
  • Retry
  • Ignore
  • Continue

4. What are Dynamic Selectors and how do you handle them?

Dynamic selectors are used when UI element attributes change during runtime. This makes static selectors unreliable.

• Common methods to handle them include:
  • Using variables inside selectors
  • Applying wildcards
  • Using anchor-based activities
  • Selecting attributes

5. What is the difference between partial and full selectors?

• Full Selectors have window and element information. They can identify elements on their own.
• Partial Selectors have element-specific information. They are used within containers.

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6. How do you automate a legacy/thick-client application where selectors are not reliable?

When selectors are unavailable, alternative methods are used:

• Image-based automation
• OCR
• Computer Vision activities
• Citrix automation techniques
• Keyboard shortcuts

These methods help applications that do not expose UI elements.

7. How do you manage transaction retries using Orchestrator Queues?

• Configure the Max Retries setting in the queue. 
• Failed system exceptions trigger retries.
• No additional coding is required
• This improves process reliability and success rates.
• Helps recover from temporary application failures

8. What are Assets in UiPath Orchestrator, and why are they used?

Assets are centralized variables stored in Orchestrator. They are shared across robots. Assets help manage configuration values securely. They eliminate hardcoded information from workflows.

• Common uses include:
  • Credentials
  • API keys
  • File paths
  • URLs
  • Environment settings

9. What is the difference between a Job and a Process?

• Process
  • Published automation package available in Orchestrator
  • It represents the automation workflow.
• Job
  • Execution instance of a process.
  • Runs on a specific robot or machine.

10. What is the difference between Screen Scraping and Data Scraping?

• Screen scraping 
  • Extracts unstructured text
  • It is used for Citrix and legacy applications.
  • Returns data as a String
• Data scraping 
  • Extracts structured data such as tables
  • Commonly used on websites
  • Returns data in a DataTable format

11. How do you optimize processing time for a large Excel file?

• To improve performance with large Excel files:
  • Use Workbook activities
  • Read required data ranges
  • Use DataTables
  • Apply filters
  • Use bulk write operations
  • Reduce repeated opening and closing of Excel files

12. How do you handle file comparisons between local directories or databases?

• File comparison can be achieved by:
  • Use Directory.GetFiles() to retrieve file lists
  • Compare file names, sizes, and timestamps
  • Use LINQ queries for advanced matching
  • Compare records using DataTables
  • Validate files against database entries

These methods help maintain data accuracy.

13. How does UiPath integrate with external APIs or web services?

UiPath integrates with REST and SOAP APIs using the HTTP Request activity.

• Key capabilities include:
  • Sending requests
  • Handling JSON and XML data
  • Using API keys and OAuth authentication
  • Processing responses directly within workflows
  • Integrating with third-party applications and services

14. What are the methods for debugging workflows in UiPath?

UiPath offers debugging tools:

• Breakpoints: Pause execution at specific activities
• Step Into: Executes tasks one after another.
• Step Over: Skip detailed execution of child activities
• Step Out: Exit the current workflow
• Highlight Elements: Verify UI element identification
• Log Message / Write Line: Track execution and variable values

These tools help developers identify and resolve issues.

15. What are Assets and Config files, and how are they different?

• Assets 
  • Stored securely in Orchestrator
  • Shared across robots
  • Ideal for credentials and environment-specific values
  • Can be updated without republishing
• Config Files
  • Stored within the project package
  • Usually maintained in Config.xlsx
  • Used for static settings and constants
  • Changes often require republishing the process

Assets are best for secure data. Config files are suitable for project settings.

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Conclusion

In conclusion to do well in UiPath interviews, you need to know your stuff when it comes to advanced RPA concepts. The UiPath interview questions and answers provided here cover topics that can help you learn more about the technical side and feel more prepared for the interview. If you are new to the field or have experience with UiPath, getting hands-on experience can make you feel more confident and improve your chances of having a career in Robotic Process Automation with UiPath. Receive career support from our Training and Placement Institute in Chennai.