Mulesoft Certified Developer - Level 1 (Mule 4) | Quizlet

How would you debug Mule applications?

Using breakpoints

What does to the attributes of a Mule event happen in a flow after an outbound HTTP Request is made?

Attributes are replaced with new attributes from the HTTP Request response.

The new RAML spec has been published to Anypoint Exchange with client credentials.What is the next step to gain access to the API?

Request access to the API in Anypoint Exchange.

What is the difference between a subflow and a sync flow?

Subflow has no error handling of its own and sync flow does.

What is not an asset?

Exchange

How to import Core (dw::Core) module into your DataWeave scripts?

Not needed

What is the value of the stepVar variable after the processing of records in a Batch Job?

Null

What is the object type returned by the File List operation?

Array of Mule event objects

Where are values of query parameters stored in the Mule event by the HTTP Listener?

Attributes

How can you call a flow from Dataweave?

Look up function

DataWeave is tightly integrated with ____________.

Mule runtime

In the Database On Table Row operation, what does the Watermark column enable the On Table Rowoperation to do?

To avoid duplicate processing of records in a database.

An API has been created in Design Center.What is the next step to make the API discoverable?

Publish the API to Anypoint Exchange. (Anypoint Exchange enables publishing, sharing, and searching of APIs.)

What is the correct way to format the decimal 200.1234 as a string to two decimal places?

200.1234 as String {format: ".0#"}

How is policy defined in terms of classloader of an API?

Classloader isolation exists between the application, the runtime and connectors, and policies.

According to Mulesoft, how are Modern APIs treated as?

products

According to Semantic Versioning, which version would you change for incompatible API changes?

MAJOR

What is the use of DevKit in Mule 4?

No use.

A Scatter-Gather processes a number of separate HTTP requests. Each request returns a Mule event witha JSON payload.

What is the final output of the Scatter-Gather?

An Object containing all Mule event Objects.

What are the latest specification of RAML available?

1

http://dev.acme.com/api/patients?year=2016
What should this endpoint return?

Patients from year 2016

According to MuleSoft, what is the Center for Enablement's role in the new IT operating model?

Creates and manages discoverable assets to be consumed by line of business developers.

Which one of them is NOT a flow in Mule?

async sub flow

How are multiple conditions used in a Choice router to route events?

To find the FIRST true condition, then distribute the event to the ONE matched route.

What asset can NOT be created by using Design Center?

API Portals

A flow has a JMS Publish consume operation followed by a JMS Publish operation. Both of theseoperations have the default configurations.

Which operation is asynchronous and which one is synchronous?

Publish consume: Synchronous. Publish: Asynchronous.

What is the use of API Notebooks?

Test API functions

What is the DataWeave expression to log the Content-Type header using a Logger component?

#["Content-Type: " ++ attributes.headers.'content-type']

What is the trait name you would use for specifying client credentials in RAML?

client-id-required

What is the purpose of API autodiscovery?

Allows a deployed Mule application to connect with API Manager to download policies and act as its own API proxy.

What is NOT part of a Mule 4 event?

inboundProperties

What is the main purpose of flow designer in Design Center?

To design and develop fully functional Mule applications in a hosted development environment.

What DataWeave 2.0 type can be used as input to a mapObject operation?

Object

Why would you use SOAP instead of http?

Successful/retry logic for reliable messaging functionality.

What statement is a part of MuleSoft's description of an application network?

Creates reusable APIs and assets designed to be consumed by other business units.

What does the Mule runtime use to enforce policies and limit access to APIs?

The Mule runtime's embedded API Gateway

What is the correct syntax to reference a fragment in RAML?

examples: !include examples/BankAccountsExample.raml

Which keyword do you use to create a new function in DataWeave?

fun

What are the features of CloudHub Fabric?

Horizontal Scaling

How many Mule applications can run on a CloudHub worker?

At most one

How would you debug Mule applications?

Using logger component

What is the purpose of the api:router element in APIkit?

Validates requests against RAML API specifications and routes them to API implementations.

What HTTP method in a RESTful web service is typically used to completely replace an existing resource?

PUT

What module and operation will throw an error if a Mule event's payload is not a number?

Validation module's Is number operation

A Set Variable component saves the current payload to a variable. What is the DataWeave parent expression to access the variable?

#[vars]

A Batch Job scope has three batch steps. An event processor throws an error in the second batch stepbecause the input data is incomplete.

What is the default behavior of the batch job after the error is thrown?

All processing of the batch job stops.

What does the minus operator do in DataWeave?

Removes items from a list.

Does a root element need when creating a response using Dataweave?

Sometimes (Only needs for XMLs)

What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?

System

How does Runtime Manager Console connect with App Data and Logs of a Mule app?

Rest API

Where does a deployed flow designer application run in Anypoint Platform?

CloudHub worker

What is the minimum required configuration in a flow for a Mule application to compile?

An event processor

Where would you create SLA Tiers for an API?

API Manager

What DataWeave 2.0 type can be used as input to a map operation?

Array

What MuleSoft product enables publishing, sharing, and searching of APIs?

Exchange

What does the zip operator do in DataWeave?

Merges elements of two lists (arrays) into a single list.

What is the face of CloudHub and integrates with Platform Services?

Runtime Manager Console

What is a core characteristic of the Modern API?

API is designed first using an API specification for rapid feedback.

Anypoint MQ FIFO queues are limited to how many in flight messages per queue?

10