Salesforce-MuleSoft-Developer-I Exam Dumps - Salesforce Certified MuleSoft Developer (Mule-Dev-201)

The correct answer is To avoid duplicate processing of records in a database.

If a watermark column is provided, the values taken from that column are used to filter the contents of the next poll, so that only rows with a greater watermark value are returned. If an ID column is provided, this component automatically verifies that the same row is not picked twice by concurrent polls.

Mule doc reference : https://docs.mulesoft.com/db-connector/1.8/database-documentation#listener

Choice router finds the FIRST true condition, then distribute the event to the ONE matched route.

MuleSoft Doc Ref: https://docs.mulesoft.com/mule-runtime/4.1/choice-router-concept

The Choice router dynamically routes messages through a flow according to a set of DataWeave expressions that evaluate message content. Each expression is associated with a different routing option. The effect is to add conditional processing to a flow, similar to an if/then/else code block in most programming languages.

Only one of the routes in the Choice router executes, meaning that the first expression that evaluates to true triggersthat route’s execution and the others are not checked. If none of the expressions are true, then the default route executes.

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File is not updated when FTP read operations is performed.

MuleSoft Doc Ref : https://docs.mulesoft.com/file-connector/1.3/file-read

Correct answer is Anypoint Visualizer

MuleSoft Doc Ref : https://docs.mulesoft.com/visualizer/

Anypoint Visualizer provides a real-time, graphical representation of the APIs, and Mule applications that are running and discoverable. It also displays third-party systems that are invoked by a Mule API, proxy, or application within your application network. The data displayed in the graph is dynamically updated and does not require prior configuration. Additionally, the data displayed is secure, as only users with the proper permissions can view the application network graph.

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The List operation returns an array of messages in which: Each message holds the file’s content in its payload. The file’s attributes section carries the file’s metadata (such as name, creation time, and size). The payload is empty if the element is a folder.

Creates reusable APIs and assets designed to beconsumed by other business units

Mule applications can be scaled vertically by changing worker size. Mule applications can be scaled horizontally by adding more workers.