IQVIA Software Developer II Interview Questions, Process, and Tips

Scaling in Mule refers to the ability to handle increased traffic and workload by adding more resources.

• Scaling can be done horizontally by adding more instances of the application or vertically by increasing the resources of the existing instance.

• Horizontal scaling is useful when the workload is distributed across multiple instances, while vertical scaling is useful when a single instance needs more resources.

• Scaling ...read more

Mule APIs can be deployed on both Prim and Cloudhub platforms.

• For Prim deployment, create a deployment package and deploy it on the server.

• For Cloudhub deployment, create an application in Anypoint Platform and deploy it on Cloudhub.

• Both platforms support different deployment strategies like blue-green deployment, canary deployment, etc.

• Prim deployment requires manual configuration of servers, while Cloudhub provides a...read more

Dataweave functions and writing custom functions

• Dataweave functions are built-in functions in MuleSoft's Dataweave language

• Custom functions can be written using the 'fun' keyword and specifying input and output types

• Functions can be defined in a separate module and imported into the main Dataweave script

• Functions can also be defined inline within the Dataweave script

• Examples of custom functions include string manipulat...read more

Java can be used in DataWeave by calling Java methods and classes from within DataWeave code.

• Use the Java module to import Java classes and methods

• Use the invoke method to call Java methods

• Use the new keyword to create new Java objects

• Example: Java::java.lang.String::valueOf(payload.age)

Mule 3 and 4 have different types of exceptions.

• Mule 3 has 4 types of exceptions: Messaging, Expression, Security, and Connector.

• Mule 4 has 3 types of exceptions: Mule, Application, and System.

• The main difference is that Mule 4 has a new type of exception called Mule, which is used for all Mule-specific errors.