Pega is a low-code platform that enables businesses to integrate their processes and customer journeys from start to finish. As a result, there are numerous opportunities for Pega developers at reputable companies around the globe. This article is for those seeking Pega Interview Questions for Experienced or New Candidates. We have compiled a list of the top 25 Pega Interview Questions and sample answers to help you ace your interview and land your dream job as a Pega Developer.
1. Briefly Describe What Pega Is.
Pega is one of the best BPM tools that automate processes and enables organizations to achieve profitability and efficacy. It provides a Designer Studio that functions as an Integrated Development Environment for application development. Designer Studio is a web-based tool that facilitates the design and collaboration of applications by developers. It allows users to develop applications easily, integrate with external systems, and implement mobility. The focus is primarily on customer engagement and digital process automation.
2. What Are The Primary Applications Of Pega?
Pega is a platform that enables users to develop applications, implement mobility, manage the case life cycle, design extensive user interfaces, manage decisions and implement DevOps and robotic automation, among other capabilities. Pega is preferred over other tools because it eliminates coding, simplifies the process by utilizing built-in functionalities, and focuses on reusing and modifying existing rules.
3. What Is The Difference Between Pessimistic And Optimistic Locking?
An exclusive lock is used when an application employs Pessimistic Locking to open an item. When a user or system opens an object, they have exclusive access until the program unlocks the object. Other users cannot edit the item while it is locked. In contrast, optimistic locking does not employ an exclusive lock when an application opens an object. Instead, any user or the system can open and edit the item anytime. Before making any changes to the object, the computer determines whether it has been modified.
4. What Are Pega Requestor Types?
A Data-Admin-Requestor instance defines a requestor type. Pega Platform includes four requestor types and a reserved requestor type prpc for the system name specified during installation. Browser for special circumstances. We require only the four requestor types containing your system’s name. After installation, if users wish to modify the system name, they navigate to Designer Studio => System => Settings => System Name to access a landing page tab where we can do so. When a system’s name changes, new requestor instances corresponding to the last name are created. If for whatever reason, the previous system name did not include all requestor types, the missing requestors are also generated when the system is renamed.
5. What Is Your Definition Of An Agent?
An agent is an external background process that operates on the server to perform activity-related tasks. The agents are autonomous and asynchronous. Agents also perform duties such as sending email notifications and synchronizing caches across nodes. Agent-invoked activities execute independently based on the timetable.
6. What Are The Recommended Procedures For Utilizing Activities?
Pega Platform activities automate processes. Activities are scripted in Dev Studio and consist of phases that must be completed in the defined order. The following are some best practices for using activities in Pega:
- Limit your activities to a minimum. Limit your actions to no more than 25 and ensure each is geared toward reaching a particular objective.
- Use alternative rule types, such as a data transform, to set a property value, if possible.
- Keep Java code to a minimum. If standard or custom rule types, library functions, or activity methods are available, skip the Java steps of activities.
7. Explain Forward Chaining And Backward Chaining.
Backward chaining provides automatic computation of the property by executing the declarative value only when the property’s value is required, rather than when the input changes. On the other hand, forward chaining provides automatic computation of the property by executing the declarative rule whenever the input property value is modified.
8. What Does Workspace Mean In The Context Of Pega?
A workspace is a location where a developer can utilize specialized tools and features. It accelerates application development and boosts productivity by providing role-based capabilities to users. Utilizing role-based workspaces on the Pega Platform can increase efficiency. Users can view what they need when they need it. In addition, by utilizing distinct workspaces to create and administer their application, Team members can focus on tasks that align with their areas of expertise. Pega Platform provides four role-based authoring environments: App Studio, Dev Studio, Prediction Studio, and Admin Studio.
9. What Different Types Of Classes Does Pega Support?
Pega classes include the following:
- Integration Class: The Integration class contains the rules that specify how the application interacts with other services, such as the integration resources that link it to a customer database or an external web server.
- Data Class: The Data class stores the rules that specify the data objects the application uses, such as a customer data type or order items data type.
- Work Class: Processes, data items, and user interfaces are all included in the Work class, which specifies the rules governing how to process a case or cases.
10. What Do You Know About Pega,s Dco Feature?
DCO is the process of acquiring, organizing, and storing data using the Pega Platform’s integrated solution. DCO contains procedures and instruments for gathering and organizing application artifacts. Moreover, IT, business, and testing teams, in addition to other resources, utilize this enabling technology. As a result, it saves time, effort, and money while enhancing project quality and people’s lives. The objectives and benefits of the DCO are to centralize data so that it can be used continuously across departments at the appropriate time and level. By providing a central repository for linked applications, DCO eliminates communication barriers. In addition, real-time as-built documentation and a unified application perspective are available for all resources.
11. In The Context Of Pega, Distinguish Between The Page-Validate And Property-Validate Methods.
The Property-Validate method is used to limit a property’s value. Use the Edit validate rule in conjunction with the Property-Validation method to implement constraints. It enables multiple properties validation. In contrast, the Page-Validate method verifies all of a page’s properties. If a page contains embedded pages, this method verifies each attribute recursively. This method requires considerable time and system resources.
12. Describe The Various Layout Options Available In Pega.
The following are the available layout types in Pega:
- Grid Layout: Table layouts facilitate data retrieval and comparison for users. In your applications, tables can serve as a flexible foundation for users to process massive amounts of data.
- Tree Grid Layout: Developers can use a tree layout to view, navigate and access the properties of pages in an embedded Page List.
- Dynamic Layout: A dynamic layout is a DIV-based layout that enables diverse content presentation.
- Column Layout: A Columns layout enables you to display primary content, such as a work item, alongside supplementary content, such as an attachment.
- Screen Layout: Screen layouts are exclusive to harnesses and are typically used to establish application portals.
13. What Is PRPC In Regards To Pega?
PRPC is the abbreviation for Pega Rules Process Commander. Pega systems are founded on the PRPC framework. It is completely model-driven, enabling the development of dependable and effective applications without using any code, such as SQL, Java, CSS, or HTML. PRPC is a software platform that enables businesses to integrate their diverse and intricate business procedures and methods onto a single platform. In addition, it enables the consolidation of multiple streams into a single system by automating, documenting, and simplifying business processes.
14. What Are The Various SLA Types?
The following are the various types of SLA:
- Assignment SLA: This SLA begins with the creation of the assignment and concludes with the assignment’s completion.
- Case Level SLA: When an SLA is referenced at the case level, it is known as a Case level SLA. It begins with the opening of a case and ends with its closure. It begins when a case enters a stage and concludes when it leaves the stage.
- Step-level SLAs commences when a process or step commences and conclude when it concludes.
- SLA flow: When a flow is initiated, an SLA at the flow level is initiated. Step SLA is referenced in every step of the case-type rule. The process tab of the flow rule contains a flow SLA.
15. Explain Data Pages In Pega’s Context.
A data page manages the integration with the data source, separating business activities from integration details. This separation allows app developers to utilize supplied data without knowing the data source or connection details. In contrast to the majority of Pega Platform pages, applications only attempt to populate the contents of a data page when the page is requested, as opposed to via an explicit action. The content of data pages is considered declarative rules because it is accessible on demand. Pega Platform automatically appends the prefix D_ to the name of a data page to differentiate it from other pages in memory.
16. What Are The Benefits And Drawbacks Of Declaring Page?
The primary advantage of Declare pages is that it prevents multiple DB hits. For example, if numerous requestors exist in a single request batch, the load action will be enthusiastic and generate a Declare page before obstructing the data on that page. This bump shows this; these requestors can maintain the page and utilize its content. The disadvantage is that the requestors only interpret it, and developers cannot add additional data or remove precise data.
17. What Steps Are Involved In Creating A Work Object In Pega?
The work object is the most fundamental unit of task completion in an application and the most fundamental collection of data on which a flow operates. In Pega, we can create a work object by following these steps:
- Construct a button that resembles a section or header.
- After expanding the cell property within the button, click the action tab.
- Add a specified action to the button.
- The button must contain a focus class and a flow name.
- Use “Param. prerecorded” to obtain the current work object ID.
- Open the case using the “Obj-Open-By-Handle” command.
- Copy the information from pagers using Page-Copy.
18. What Does An Agent Mean In Relation To Pega?
An agent is a server’s internal background process that regularly performs actions. For example, agents transmit email notifications regarding assignments and outgoing messages, produce updated indexes for the full-text search capability, synchronize caches among many nodes, and perform other system tasks. Agents are self-contained and asynchronous: the activities they summon run on their timelines, and the execution of a second activity can begin before the execution of the previous action is complete. Agents have their own set of rules that define them. Agent Queue data instances are utilized to schedule and enable agents. Suppose potential deadlock and other locking issues are controlled properly by the activities in a multi-node cluster. In that case, an agent can run on multiple or even on each node to achieve high throughput.
19. What Are The Advantages Of Pega Case Management?
The benefits of Case Management are as follows:
- Increased transparency: Users can see exactly how a business process reaches a particular point, even after rerouting and further processing, by reviewing changes in individual fields and values and following an audit trail.
- Users can achieve their business objectives by following a predetermined path or adjusting the sequence of processes in response to dynamically changing conditions.
- Non-linear commercial actions are supported: Users can begin flexibly supporting company procedures most pertinent to the current circumstance.
- Enhanced business adaptability: Users can move a business process to a prior or subsequent milestone for additional processing to ensure the work is completed thoroughly.
20. What Do You Know About Exposed Properties Within The Framework Of Pega?
An exposed property is a Single Value database column property. A BLOB or Storage Stream column has aggregate, embedded, and hidden properties. For example, most PegaRULES databases contain a PHP stream Storage Stream column. An exposed property is a Single Value database column property. A BLOB or Storage Stream column has aggregate, embedded, and hidden properties. For example, most PegaRULES databases contain a PHP stream Storage Stream column.
Only Single Value attributes at the top level are visible. However, it is possible to convey embedded property values to the top level or offer them indirectly via instances of the Index class.
21. How Do You Deal With Escalation?
Escalation refers to any activity within a Process Commander application that makes high-priority work objects visible to users and managers and causes them to be rapidly processed. For example, a service level rule connected with the flow and background processing by the Pega-ProCom agent can lead to Escalation.
22. What Are The Advantages Of Rule Resolution?
Below are some of the benefits of rule resolution:
- Even within a single rule set, rules may exist in several versions, and security rules restrict which users can read and execute which versions.
- A single Pega Platform system may host numerous applications, various organizations, and multiple versions of a single application with little conflicts and interference.
- Developers can develop applications independently of one another, but they can all adhere to a fixed set of rules.
- Apps and organizations can share rules between themselves.
- Object-oriented software development provides numerous benefits, including reuse and sharing.
- Rules established at a lower level that are more specific can supersede rules defined at a higher level. Even though this decreases the value of sharing, it provides much-needed flexibility and highlights exceptions.
23. What Exactly Is A Circumstance In Pega?
The circumstance is an optional rule resolution algorithm condition and enhancement. Different flavor-specific versions of the rules within the same version are suited to different situations. During rule resolution, circumstance determines which rule is executed by comparing the values of the rule set, version, and availability. At runtime, the system first locates rules based on class hierarchy, then searches for rules that the requestor’s session requires, and compares the values of the rule set, version, and availability.
24. Describe The Map Value Rule.
A map value rule converts one or two input values, such as latitude and longitude coordinates, into a calculated output value, such as the city’s name. The rule uses a matrix and input ranges to look up the output value or values. Map value rules are represented as Rule-Obj-MapValue objects. This rule type belongs to the decision category.
25. What Certifications Are Available For Pega Developers?
The following are the primary Pega certifications offered to developers:
- CSA: Certified System Architect stands for CSA. This certification is the entry-level certification for developers.
- CSSA: Certified Senior System Architect stands for CSSA. It is a high level of developer certification. The developers with this qualification are regarded as professionals in constructing, evaluating, and leading teams with strong technical characteristics.
- LSA: LSA is an abbreviation for Lead System Architect. It is the most advanced level of developer certification. The developers who hold this certification are regarded as development leaders who are well-versed in all functionalities and implement them effectively.
Pega is an excellent tool in today’s software ecosystem, and it has opened the way for emerging technology in the automation process. Therefore, the aforementioned are the interview questions for Pega job seekers seeking a stable career. I hope that these top 25 Pega interview questions and sample answers have helped you prepare for your forthcoming interview.