Top 20 Wipro Salesforce Developer Interview Questions & Answers

Did you know that according to industry research, approximately 80% of candidates who secure positions in top tech companies like Wipro have undergone extensive interview preparation, focusing not just on technical skills but also on company-specific insights? This statistic highlights the importance of a well-rounded preparation strategy.

In this comprehensive guide, we’re dedicated to steering you through the nuances of acing your Wipro Salesforce Developer interview. Here’s a preview of the valuable insights you’ll find in this read:

• Salesforce technical concepts through our detailed questions and answers.
• Real-world challenges with our handpicked scenario-based questions and answers.
• How to effectively answer behavioral questions while showcasing your technical expertise.

Let’s get started!

Technical & Coding based Questions and Answers

Q1. Explain the concept of a ‘Trigger’ in Salesforce and when you would use it.

In Salesforce, a Trigger is a piece of Apex code that executes before or after data manipulation language (DML) events occur, like insertions, updates, or deletions. Triggers are used to perform custom actions before or after changes to Salesforce records. For example, you might use a Trigger to automatically update related records when a new record is inserted or modified.

Q2. How would you handle error handling in Apex?

In Apex, error handling is managed using try-catch blocks. Within a try block, you write the code that might throw an exception. The catch block is used to handle the exception if one occurs. It’s crucial to log these exceptions using methods like System.debug for debugging purposes. Additionally, using custom exceptions for specific error scenarios can make the code more robust and maintainable.

Q3. Describe how you can optimize SOQL queries to avoid hitting governor limits.

To optimize SOQL queries and avoid governor limits, you should:

• Use selective queries with indexed fields and filters that return fewer records.
• Use the LIMIT clause to restrict the number of records retrieved.
• Avoid using SOQL queries inside loops.
• Whenever possible, use relationship queries to retrieve data from related records in a single query instead of multiple queries.

Q4. Can you explain the role of Test Classes in Salesforce and why they are important?

Test classes in Salesforce are used to write unit tests for Apex code. They are critical because they ensure that your Apex classes and triggers work as expected and handle all possible use cases and exceptions. Salesforce requires at least 75% code coverage to deploy Apex code to production, ensuring that the majority of your code is tested for functionality and stability.

Also Read – How to Write Test Classes in Salesforce for Code Quality?

Q5. Describe a scenario where you would use a Batch Apex, and explain how it is different from a regular Apex class.

Batch Apex is used for processing large data sets that exceed governor limits in a single execution. For example, if you need to update or process records on a scale of millions, Batch Apex allows you to break down the job into manageable chunks and process these chunks one at a time. Unlike regular Apex classes, Batch Apex classes implement the Database.Batchable interface, and its execution can be scheduled to run at specific intervals.

Q6. In Salesforce, what is the purpose of using Controller Extensions, and how do they differ from Custom Controllers?

Controller Extensions in Salesforce are used to add additional functionality to a standard or custom controller. They allow you to leverage the existing functionality of a standard controller while adding custom logic and data manipulation capabilities. In contrast, Custom Controllers are completely written from scratch using Apex and are used when you need total control over the behavior of a Visualforce page, without relying on the functionality of standard controllers.

Q7. How do you ensure data security when writing Apex classes that handle sensitive information?

To ensure data security in Apex, especially when handling sensitive information, follow these practices:

• Use sharing rules and field-level security to enforce data access permissions in Apex classes.
• Avoid hard-coding sensitive information like credentials; instead, use custom settings or protected custom metadata types.
• Implement input validation to prevent SOQL injection attacks.
• Write test classes that respect and enforce the organization’s data security and sharing rules.

Q8. Explain the concept of ‘Context Variables’ in Apex Triggers.

Context Variables in Apex Triggers provide information about the runtime environment in which the Trigger is executing. These include variables like Trigger.new, which contains the new versions of sObject records, and Trigger.old, which holds the old versions. Other variables like Trigger.isInsert or Trigger.isUpdate indicate the type of DML operation that invoked the Trigger. These variables are essential for writing triggers that behave differently based on the context of the operation.

Q9. Describe a use case for implementing a Custom Metadata Type in Salesforce.

Custom Metadata Types in Salesforce are ideal for storing configurable application data that you can deploy with your packages. For instance, you might use Custom Metadata Types to store API endpoints or integration settings that vary between different Salesforce orgs. This allows administrators to manage application settings without altering the code.

Q10. Can you explain how ‘Change Sets’ are used in Salesforce, and what are their limitations?

Change Sets in Salesforce are used to deploy customizations from one Salesforce org to another, such as from a sandbox to a production environment. They can include components like Apex classes, Visualforce pages, and custom object definitions. However, Change Sets have limitations: they cannot deploy certain metadata types, require manual selection of components, and do not track changes or dependencies automatically. For more complex deployments, tools like Salesforce DX or the Ant Migration Tool are recommended.

Also Read – Accenture Salesforce Developer Interview Questions & Answers

Scenario-Based Questions and Answers 

Scenario 1: You are tasked with creating a custom Salesforce application that tracks customer feedback. The client wants to categorize feedback based on sentiment. How would you approach this?

To create this application, I would first define a custom object to store customer feedback. For sentiment analysis, I would either use Salesforce’s Einstein AI capabilities to categorize feedback into positive, negative, or neutral automatically or create a picklist for manual categorization. Additionally, I would develop a dashboard with reports to visualize the feedback trends over time and identify areas needing improvement.

Scenario 2: A client reports that users are experiencing slow load times on a Visualforce page you developed. How would you diagnose and resolve the issue?

I would start by analyzing the Visualforce page’s performance using the Salesforce Developer Console to identify any slow-loading queries or processes. I would check if the page is making multiple or inefficient queries to the database and optimize them. Additionally, I would review the use of JavaScript and CSS to ensure they are not causing performance bottlenecks and consider implementing lazy loading for data-intensive components.

Scenario 3: Your team is integrating Salesforce with an external REST API, but you’re encountering frequent timeout errors. What steps would you take to address this?

First, I would verify the API endpoint’s stability and our network connectivity. If the issue is on the Salesforce side, I would implement retry logic in the API callouts to handle transient errors. I’d also consider using asynchronous callouts (like future methods or Queueable Apex) to prevent long-running transactions and optimize the API request and response structure for efficiency.

Scenario 4: You need to build a complex data model in Salesforce involving several related objects. How do you ensure the model is scalable and maintainable?

In designing a complex data model, I would carefully plan the relationships between objects, using lookup relationships for less dependent connections and master-detail for tightly coupled ones. I would normalize the data model to reduce redundancy and ensure scalability. To maintain the model, I’d use clear naming conventions, document the relationships and business logic, and build comprehensive test coverage.

Scenario 5: During a Salesforce deployment, a critical workflow affecting hundreds of users stops working. How would you handle this situation?

Firstly, I would rollback the deployment if possible to minimize disruption. Then, I’d investigate the issue, checking deployment logs and recent changes to identify the cause. If it’s a configuration issue, I would correct it and redeploy; if it’s more complex, I would communicate with stakeholders about the issue and estimated resolution time. After resolving, I would review our deployment process to implement additional checks or tests to prevent similar issues in the future.

Scenario 6: A client wants to automate the lead assignment process based on specific criteria. How would you implement this in Salesforce?

To automate lead assignment, I would use Salesforce’s Assignment Rules. I’d create rules based on the client’s criteria, such as lead source, region, or industry. Each rule entry would direct leads to the appropriate queue or user. For more complex scenarios, a combination of Process Builder and Apex might be needed, especially if the criteria involve custom logic or external data sources.

Scenario 7: You’re tasked with improving the existing Salesforce reporting system to provide more insightful sales analytics. What steps would you take?

I would start by understanding the current reporting setup and the specific analytics needs. Then, I’d explore Salesforce’s advanced reporting features, such as joined reports, cross-filters, and custom summary formulas. If necessary, I’d create new custom report types to capture the required data relationships. I would also consider leveraging Salesforce Einstein Analytics for deeper insights and predictive analytics.

Scenario 8: Your project involves migrating a large amount of data from a legacy CRM to Salesforce. What is your approach to ensure a successful migration?

For a successful data migration, I’d first thoroughly map the data from the legacy CRM to the corresponding Salesforce objects and fields, paying attention to data types and relationships. I would clean and prepare the data, ensuring its quality. Then, I’d use Salesforce’s Data Import Wizard or Data Loader for the migration, in batches if necessary, to manage the volume. Post-migration, I would perform extensive data validation to ensure data integrity and completeness.

Scenario 9: A user reports that a custom button in Salesforce isn’t working as expected. How do you approach troubleshooting this issue?

To troubleshoot the issue, I’d first replicate the problem to understand its context. I would check the button’s configuration, such as its URL or JavaScript, and ensure it’s aligned with the intended functionality. If it’s a Visualforce page or Lightning Component button, I would review the associated code. Additionally, I’d verify the user’s profile and permissions to ensure they have the necessary access. If a recent change caused the issue, I would review change logs.

Scenario 10: You need to develop a solution for syncing Salesforce data with an external inventory management system in real-time. What would be your strategy?

For real-time data synchronization, I would use Salesforce’s outbound messages or callouts to trigger updates. Depending on the external system’s capabilities, I might use Salesforce’s REST or SOAP API for the callouts. If the external system supports it, a middleware platform like MuleSoft could be used for more complex integration needs. Ensuring data consistency and handling exceptions would be key in this integration.

How to Answer Behavioral Questions with a Technical Edge?

Effectively answering behavioral questions in a technical interview, such as one for a Salesforce Developer position at Wipro, involves more than just recounting experiences. It’s about strategically showcasing your technical skills within the context of real-world scenarios. Here’s how you can make a lasting impression:

1. Integrate Technical Expertise into Your Stories: When responding to behavioral questions, integrate examples that highlight your technical competencies. For instance, if asked about a challenging project, describe not only how you handled the situation but also delve into the specific Salesforce tools or programming solutions you utilized. This approach demonstrates your problem-solving skills and your technical acumen.
2. Use the STAR Method: Structure your answers using the Situation, Task, Action, and Result (STAR) method. Begin by setting the scene (Situation), outline the task or challenge (Task), describe the action you took, focus on your technical role (Action), and conclude with a positive outcome or learning experience (Result). This structured response provides a clear and concise narrative, making your technical contributions stand out.
3. Reflect Adaptability and Continuous Learning: The tech industry, especially in areas like Salesforce development, is continually evolving. When discussing past experiences, highlight your adaptability and eagerness to learn new technologies or methodologies. Showcasing your commitment to professional development and staying updated with the latest Salesforce features can be a significant differentiator.
4. Balance Technical Jargon with Clarity: While it’s important to display your technical knowledge, ensure your explanations are clear and understandable, even to non-technical interviewers. Avoid overloading your answers with jargon. Instead, aim for a balance that conveys your expertise while being accessible.
5. Showcase Soft Skills: Technical skills are crucial, but soft skills like teamwork, communication, and leadership are equally important. When answering behavioral questions, include instances that highlight these qualities. For example, discuss a time when you led a team through a complex Salesforce integration, emphasizing both your leadership skills and your technical expertise.

By blending your technical prowess with effective storytelling techniques, you can turn behavioral questions into opportunities to showcase the full spectrum of your capabilities as a Salesforce Developer.

Conclusion 

As you stand on the brink of your Salesforce Developer interview at Wipro, remember that your preparation journey shapes your success. It’s not just about memorizing answers but truly understanding and internalizing the concepts and strategies that make a Salesforce Developer effective.

To further enhance your readiness and confidence, consider diving into the world of saasguru’s Salesforce Labs. Here, you’ll find a unique blend of mini-projects and practical scenarios, crafted to refine your skills in a real-world context. With saasguru’s Salesforce Labs, you’re not just preparing; you’re experiencing and solving the kind of challenges you’ll face in the workplace.

The journey with saasguru’s Salesforce Labs is about more than preparation; it’s about building confidence and competence at your own pace. Admin Mini Projects, Developer Mini Projects, and tailored Interview Scenarios are designed to eliminate the guesswork and anxiety that often accompany preparation. They provide a structured, step-by-step approach with real-time validation of your code and configurations.

Connect with saasguru today and take a definitive step towards mastering Salesforce.