40+ Pega Developer Interview Questions and Answers

Flow is a sequence of steps while flow action is a single step in a flow.

• Flow is a collection of flow actions that define a process

• Flow action is a single step in a flow

• Flow can have multiple flow actions

• Flow actions can be reused in multiple flows

• Example: A loan application process can be a flow with flow actions like 'Check eligibility', 'Verify documents', 'Approve loan'

• Example: 'Approve loan' can be a flow action that can be reused in other loan approval processes

Decision tree is a graphical representation of decisions and their possible consequences, while decision table is a tabular representation of decisions and their corresponding actions.

• Decision tree is a visual representation of a decision-making process, where each branch represents a possible decision and its outcome.

• Decision table is a table that lists all possible combinations of conditions and actions, making it easier to determine the appropriate action for a given set o...read more

Keyed Access is used to retrieve a single record based on a key, while Parameterized Data Page is used to retrieve multiple records based on parameters.

• Keyed Access is used to fetch a single record from the database based on a unique key value.

• Parameterized Data Page is used to fetch multiple records from the database based on specified parameters.

• Keyed Access is suitable for scenarios where only one record needs to be retrieved quickly.

• Parameterized Data Page is useful when ...read more

Batch processing can be achieved by breaking down a large task into smaller chunks and processing them sequentially.

• Divide the task into smaller chunks

• Process each chunk sequentially

• Use batch processing tools like Apache Spark or Hadoop

• Ensure data consistency and error handling

• Monitor progress and performance

Obj- and RDB- methods are used in PEGA for creating, updating, and deleting instances of classes and interacting with relational databases.

• Obj- methods are used for creating, updating, and deleting instances of classes in PEGA.

• RDB- methods are used for interacting with relational databases in PEGA.

• Obj-Save is an example of an Obj- method used to save an instance of a class in PEGA.

• RDB-Save is an example of an RDB- method used to save data to a relational database in PEGA.

Rule resolution algorithm is a process used by Pega to determine which rule to execute when multiple rules with the same name exist.

• Rule resolution algorithm considers the rule type, rule set, version, and availability when determining which rule to execute.

• The algorithm follows a specific order of rule resolution, starting with the most specific rule and moving to more general rules.

• If no rule is found, the system falls back to the base rule.

• Examples of rule types include ac...read more

Data transforms are preferred over activities for better performance and reusability.

• Data transforms are more efficient as they are executed on the clipboard directly, without the need to create a new Java step like in activities.

• Data transforms are easier to maintain and reuse as they are defined separately and can be called from multiple places.

• Data transforms provide a visual representation of data mapping, making it easier for developers to understand and modify.

• Data tran...read more

Job scheduler is used to schedule and run jobs at specific times, while queue processor processes items in a queue asynchronously.

• Job scheduler is used to schedule and run jobs at specific times based on a defined schedule.

• Queue processor processes items in a queue asynchronously, typically in a first-in-first-out manner.

• Job scheduler is more suitable for tasks that need to be executed at specific times, while queue processor is used for handling tasks in a queue.

• Examples: Cr...read more

Flows and flow actions are used in Pega to define the sequence of steps in a business process.

• Flows are visual representations of a business process that define the sequence of steps and actions required to complete a task.

• Flow actions are individual steps within a flow that represent a specific action or decision point.

• Flows and flow actions can be customized and configured to meet specific business needs.

• Examples of flow actions include creating a case, sending an email, or...read more

Reverse a string without using functions in Java and Python

• Iterate through the string from end to start and store each character in a new array

• Join the characters in the new array to form the reversed string

Forward and backward chaining are two types of reasoning used in artificial intelligence and expert systems.

• Forward chaining starts with the available data and uses rules to infer new conclusions.

• Backward chaining starts with a goal and works backwards to find the data and rules needed to support that goal.

• Forward chaining is used in rule-based systems, while backward chaining is used in goal-based systems.

• Examples of forward chaining include diagnostic systems and decision s...read more

Data Pages in Pega are used to store and retrieve data from external systems or databases for reuse in the application.

• Data Pages are used to improve performance by caching data and reducing the number of database calls.

• They can be sourced from various sources like databases, REST services, or other data pages.

• Data Pages can be parameterized to allow for dynamic data retrieval based on user input or context.

• They can be configured to refresh at specific intervals or on demand....read more

Different types of harnesses in Pega include main, screen, tab, and flow harnesses.

• Main harness is the primary harness used for displaying the main content of a case.

• Screen harness is used for displaying a single screen or form within a case.

• Tab harness is used for displaying multiple screens or forms within a case in a tabbed format.

• Flow harness is used for displaying screens or forms in a sequential flow within a case.

Modify schema refers to making changes to the structure of a database or data model.

• It involves adding, removing or altering tables, columns, indexes, constraints, etc.

• It can be done using SQL commands or through a database management tool.

• Modifying schema requires careful planning and testing to avoid data loss or corruption.

• Example: Adding a new column to a customer table to store their email address.

Pega is a BPM software that helps automate business processes and improve customer engagement.

• Pega provides a unified platform for process automation, case management, and customer service.

• It uses a model-driven approach to create applications without the need for coding.

• Pega's AI capabilities enable intelligent decision-making and predictive analytics.

• Pega is used by many industries including finance, healthcare, and government.

• Pega's low-code platform allows for faster deve...read more

Situation layer cake is a term used in software development to describe the different layers of a business process.

• It refers to the layers of a business process, including the presentation layer, business logic layer, and data layer.

• Each layer is responsible for a different aspect of the process, and they work together to achieve the desired outcome.

• For example, in a banking application, the presentation layer would be the user interface, the business logic layer would handle...read more

To resolve work objects using activity, use Obj-Open-By-Handle method in the activity.

• Use Obj-Open-By-Handle method in the activity to open the work object

• Update the work object as needed

• Use Obj-Save method to save the changes

• Close the work object using Obj-Refresh-And-Lock method

Pega performance can be checked using tools like PAL, SMA, and DB Trace.

• Use Performance Analyzer (PAL) to monitor system performance metrics

• Utilize System Management Application (SMA) for monitoring and troubleshooting

• Analyze database performance using DB Trace tool

Local variables in Pega can be viewed in the Clipboard tool.

• Local variables can be viewed in the Clipboard tool by navigating to the 'Local' tab.

• You can also use the 'Tracer' tool to view the values of local variables during runtime.

• Local variables are specific to a single rule execution and are not shared across different rules.

Different types of classes in Pega include abstract classes, concrete classes, and final classes.

• Abstract classes cannot be instantiated and are used as base classes for other classes.

• Concrete classes can be instantiated and used to create objects.

• Final classes cannot be extended or subclassed.

Chaining is a process in Pega where one activity calls another activity to perform a series of tasks.

• Types of chaining include sequential chaining, parallel chaining, and conditional chaining.

• Sequential chaining involves executing activities in a specific order.

• Parallel chaining allows multiple activities to run simultaneously.

• Conditional chaining involves executing activities based on certain conditions.

Constraints are used to restrict user input while Declare triggers are used to automate actions based on certain events.

• Constraints are used to validate user input and ensure it meets certain criteria.

• Declare triggers are used to automate actions based on certain events, such as when a new record is created or updated.

• Constraints are defined at the property level while Declare triggers are defined at the class level.

• Constraints can be used to enforce business rules and data i...read more

Workflow is a series of tasks that are executed in a specific order to achieve a specific goal.

• Workflow is a visual representation of a business process.

• It defines the sequence of tasks, their dependencies, and the conditions for their execution.

• It helps in automating business processes and improving efficiency.

• Example: A loan approval process where the workflow defines the steps involved such as document verification, credit check, and approval.

• Example: A customer service re...read more

There are three types of flows available in Pega: Screen Flow, Tabbed Screen Flow, and Auto-generated Flow.

• Screen Flow: Linear flow with multiple screens for user input.

• Tabbed Screen Flow: Allows users to navigate between screens using tabs.

• Auto-generated Flow: Automatically generated flow for simple processes.

BPM focuses on optimizing business processes while CRM focuses on managing customer interactions.

• BPM involves analyzing and improving business processes to increase efficiency and productivity.

• CRM involves managing customer interactions and relationships to improve customer satisfaction and loyalty.

• BPM is more internally focused while CRM is more externally focused.

• BPM may involve automation and streamlining of internal processes while CRM may involve personalized communicati...read more

Datapage is a Pega feature that allows for efficient data retrieval and caching.

• Datapages retrieve data from external sources or internal Pega systems.

• They can be configured to cache data for faster retrieval.

• Datapages can be used in various Pega features such as reports and data transforms.

• They can also be parameterized to retrieve specific data based on user input.

• Examples of datapages include retrieving customer information from a CRM system or product data from an invento...read more

Flow is a sequence of steps in a process, while flow action is a specific action within a flow.

• Flow is a series of connected steps that define a process in Pega.

• Flow action is a specific action within a flow, such as creating a case or updating data.

• Flows can contain multiple flow actions, each representing a specific task or decision point.

• Flow actions can be configured to perform different actions based on conditions or user input.

Job Scheduler is used to schedule and run jobs at specific times, while Queue Processor processes items from a queue in a sequential manner.

• Job Scheduler is used to schedule and run jobs at specific times.

• Queue Processor processes items from a queue in a sequential manner.

• Job Scheduler is time-based, while Queue Processor is queue-based.

• Job Scheduler can be used for tasks like sending emails at a specific time, while Queue Processor can be used for processing incoming request...read more

Thread is a sequence of instructions executed by a single processor. Node is a point of connection in a network.

• Thread is a lightweight unit of execution within a process.

• Threads share the same memory space and resources of a process.

• Nodes are individual devices or data points in a network.

• Nodes can be computers, servers, routers, or any other network device.

• Nodes are connected to each other to form a network.

• JSON (JavaScript Object Notation) is a lightweight data interchange...read more

A rule is a unit of logic that defines a specific behavior or action. A ruleset is a collection of related rules.

• A rule is a building block of Pega applications that defines a specific behavior or action.

• Rules are organized into rulesets, which are collections of related rules.

• Rules can be reused across different applications and rulesets.

• Rules can be versioned and managed using Pega's rule management tools.

• Examples of rules include decision rules, validation rules, and user ...read more

Case management is a process of managing and coordinating a case or a set of related cases to achieve a specific outcome.

• Case management involves tracking and monitoring the progress of cases

• It includes assigning tasks, setting deadlines, and ensuring compliance with regulations

• Case management software like Pega helps streamline and automate the process

Case ID can be customized using the 'pyCaseIdentifier' property in the case type rule.

• Use the 'pyCaseIdentifier' property in the case type rule to customize the case ID.

• You can set the format and values for the case ID in the 'pyCaseIdentifier' property.

• Example: 'C-' + .pyID

Pega is a platform for building and deploying enterprise applications.

• Pega is used for creating business process management (BPM) and customer relationship management (CRM) applications.

• It allows for the automation of complex business processes and workflows.

• Pega provides tools for designing, building, and managing applications without the need for traditional coding.

• It enables organizations to improve efficiency, reduce costs, and enhance customer experience.

• Examples of indu...read more

Activity is a rule type used to define business logic, while utility is a rule type used to define reusable functions.

• Activity is used to define business logic and can be called from other rules or processes.

• Utility is used to define reusable functions that can be called from activities or other rules.

• Activities are typically used for complex business logic, while utilities are used for common functions like date manipulation or string operations.

ECS stands for Elastic Container Service, a fully managed container orchestration service provided by AWS.

• ECS allows you to easily run, stop, and manage Docker containers on a cluster of virtual servers.

• It automatically handles scaling, monitoring, and load balancing of your containerized applications.

• You can define task definitions to specify the containers that should be launched together as a task.

• ECS integrates with other AWS services like EC2, ECR, and IAM for seamless c...read more

Reports in Pega provide insights into data and help in decision-making.

• Reports in Pega are used to analyze data and provide insights into business processes.

• They can be customized to display specific information based on user requirements.

• Reports can be generated in various formats such as charts, graphs, tables, etc.

• They help in monitoring performance, identifying trends, and making informed decisions.

• Examples of reports in Pega include case summary reports, SLA compliance r...read more

JS stands for JavaScript, a programming language used for web development. QP stands for Query Parser, a tool used for parsing and analyzing queries.

• JS is a programming language used for web development.

• QP is a tool used for parsing and analyzing queries.

• JS is used for client-side scripting, while QP is used for query parsing and analysis.

• Examples: JavaScript is used to create interactive web pages, while Query Parser is used in search engines to analyze user queries.

Integrations in Pega refer to connecting Pega applications with external systems to exchange data and functionality.

• Integrations can be achieved using connectors, services, and APIs.

• Pega provides out-of-the-box connectors for popular systems like Salesforce, SAP, and Microsoft.

• Integration can also be done through REST and SOAP services.

• Data mapping and transformation are important aspects of integrations in Pega.

Remote tracer is a tool used in Pega to remotely debug and trace the execution of rules and activities in a system.

• Remote tracer allows developers to monitor and analyze the flow of rules and activities in real-time.

• It helps in identifying performance bottlenecks, debugging issues, and optimizing rule execution.

• Developers can set breakpoints, watch variables, and step through the execution flow remotely.

• Remote tracer can be accessed through the Pega Developer Studio or the Pe...read more

SLA is a contract between a service provider and a customer that defines the level of service expected.

• SLA specifies the agreed upon level of service, such as response time or resolution time.

• It outlines the consequences if the agreed upon level of service is not met.

• SLAs are common in IT services, customer support, and outsourcing agreements.

• For example, an SLA for a software support service may guarantee a response time of 24 hours for critical issues.