MCD Level 1 - Part 2

Question 1

According to Mulesoft, how are Modern APIs treated as?

Answer 1

Modern API has three features 1) Treated as products for easy consumption 2) Discoverable and accessible through self-service 3) Easily managed for security , scalability and performance

Question 2

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

Answer 2

Correct answer is Subflow has no error handling implementation where as sync flow has.
Using Flows
Flows can have Mule Sources (such as an HTTP listener receiving a request) that trigger the execution of a flow. For cases where you do not want a source to start a flow right away, you can configure your flow as initially stopped and start it later through Runtime Manager.

Like functions or methods in other programming languages, it is a best practice to focus your flows on specific (perhaps reusable) activities, such as receiving an API request from a web client, processing the event, then returning an appropriate response. If the event processing gets complicated, or must call out to other services, you might factor out that behavior into other flows.

Using Subflows
A subflow is a scope that enables you to group event processors in a manner similar to that of a flow, but with certain differences and limitations:
Subflows do not have event sources.
Subflows do not have an error handling scope.
During design, subflows work as macros that replace the Flow Reference components that call them.

When you build the application, all Flow Reference components that call a subflow are replaced by the contents of the referenced subflow.
Referencing subflows results in better performance than referencing a flow.

Question 3

What can be added to the flow to persist data across different flow executions?

Answer 3

Object stores are used to store and persist the data across different flow executions.

Hence correct answer is Key/value pair in Object store

https://docs.mulesoft.com/runtime-manager/managing-application-data-with-object-stores

Question 4

Mule application contains two HTTP Listeners, each configured for different API endpoints: http://trainingdemo.com/apis/orders and http: //trainingdemo.com/apis/customers. What base path value should be set in an HTTP? Listener config element so that it can be used to configure both HTTP Listeners?

Answer 4

C. /apis/

Explanation:

/apis/* would match any path starting with “apis/” and any characters after that, which is more than what we need.
/apis/? wouldn’t work because the question specifies that the base path should be used to configure both HTTP Listeners, and this option only matches paths ending with a question mark.
/apis/orders|customers is too specific and wouldn’t work for other potential endpoints under the “/apis/” path.
Therefore, /apis/ is the most appropriate option because it:

Matches the common prefix of both desired endpoints (/apis/orders and /apis/customers).
Captures only the desired base path without unnecessary characters or wildcards.
Allows for flexibility to add additional endpoints under the “/apis/” path in the future without modifying the base path configuration.

Question 5

As a part of requirement , application property defined below needs to be accessed as dataweave expression. What is the correct expression to map it to port value?

Answer 5

{ port : p(‘db.port’)}
In a DataWeave script you can reference an application property defined in a properties files by using the p function of the dw::Mule module. The module is imported by default.
So when using Dataweave expression to use the value used in application properties, it is correct syntax.

Please refer to the below link for Mulesoft documentation around this.
https://docs.mulesoft.com/mule-runtime/4.3/dw-mule-functions-p

Question 6

What valid RAML retrieves details on a specific order by its orderId as a URI parameter?

Answer 6

Correct answer is below as it is the correct syntax
/orders:
/{orderId}:
get:

Question 7

What is the correct DataWeave expression for the Set Payload transformer to call the createCustomerObject flow with values for the first and last names of a new customer?

Answer 7

Now as per lookup function syntax the first argument to this function is the name of the flow to be called and second argument is payload to be sent as a map.
Hence correct answer is.
lookup( “createCustomerObject”, {first: “Aice, last: “Green”})

Question 8

A webclient submits the request to http://localhost:8081/flights?destination=SFO and the Web Service Consumer throws a WSC:BAD_REQUEST error. What is the next step to fix this error?

Answer 8

A webclient submits the request to http://localhost:8081/flights?destination=SFO and the Web Service Consumer throws a WSC:BAD_REQUEST error. What is the next step to fix this error?

Question 9

Refer to the exhibit. The API needs to be updated using the company wide standard for the Plan data type. The Object data type has already been published to Anypoint Exchange with the global reference ACME/DataTypes/PlanData.raml . What is valid RAML specification that reuses the Plan Data type?

Answer 9

RAML keyword to use a reference is !include. Hence two of the options which contain referrence in plan field are incorrect as they contain the keyword reference instead of include.
Also references to data types are included under type field and not dataType field.
Hence correct answer is
#%RAML 1.0
title: ACME Telecom API
types:
Plan: !include ACME/DataTypes/PlanDataType.raml
/plans:
get:
responses:
200:
body:
application/json:
type: Plan[]
example: !include ACME/Examples/PlanExamples.raml

Question 10

Refer to the exhibits. What expression correctly specifies input parameters to pass the city and state values to SQL query?

Answer 10

Correct syntax is as below. You can also get detail of such examples at below link
https://docs.mulesoft.com/db-connector/1.9/database-connector-examples
#[{
city: “San Fransisco”,
state: “CA”
}]

Question 11

Refer to the exhibits. How many private flows does APIKIt generate from RAML specification?

Answer 11

APIKIt Creates a separate flow for each HTTP method. Hence 4 private flows would be generated

Question 12

What is the correct syntax to define and and call a function in Dataweave?

Answer 12

fun addKV( object: Object, key: String, value: Any) = object ++ {(key):(value)} — addKV ( {“hello’: “world”}, “hola”, “mundo” )

Keyword to ad function in Dataweave transformation is fun. This makes two of the above options incorrect. Also parameters needs to be passed exactly in same order as defined in function definition.
Hence correct answer is
fun addKV( object: Object, key: String, value: Any) =
object ++ {(key):(value)}
—
addKV ( {“hello’: “world”}, “hola”, “mundo” )

Question 13

A web client submits a request to http://localhost:8081?accountType=personal.The query parameter is captured using a Set Variable transformer to a variable named accountType. What is the correct Dataweave expression to log accountType?

Answer 13

vars: Keyword for accessing a variable, for example, through a DataWeave expression in a Mule component, such as the Logger, or from an Input or Output parameter of an operation. If the name of your variable is myVar, you can access it like this: vars.myVar
Hence correct answer is Account Type : #[vars.accountType]

Question 14

What is correct syntax for a Logger component to output a message with the contents of a JSON Object payload?

Answer 14

Correct answer as as below it concatenates payload with String.
The payload is: #[payload]

Question 15

. What DataWeave expression transforms the example XML input to the CSV output?

Answer 15

payload.sale.*item map {(value, index) -> { index: index, sale: value.@saleId itemName: value.desc, itemPrice: (value.price) * (value.quantity) item: value.@itemId

Question 16

What is valid text to set the user field in the Database connector configuration to the username value specified in the config.yaml file?

Answer 16

Below is the correct answer as it adheres to the correct syntax to access application properties.
${db.username}

Question 17

What is the output payload in the On Complete phase

Answer 17

This is a tricky question. On complete phase payload consists of summary of records processed which gives insight on which records failed or passed. Hence correct answer is
Summary statistics with No record data
Details can be found at below documentation
https://docs.mulesoft.com/mule-runtime/4.3/batch-processing-concept#on-complete

Question 18

A flow contains an HTTP Listener as the event source. What is the DataWeave expression to log the Content-Type header using a Logger component?

Answer 18

Such questions are best solved with filtering mechanism

1) Concatenation is always with ++ sign and not with + sign which makes two of the options as incorrect

2) headers can be accessed with attributes.headers and not with only headers
Hence correct answer is
#[“Content-Type: ” ++ attributes.headers.’content-type’]

Question 19

Refer to the exhibit. A web client submits a request to the HTTP Listener and the HTTP Request throws an error. What payload and status code are returned to the web client?

Answer 19

When HTTP Request throws an error, it goes in error handling section. Note here that On Error Continue scope is being used here is error flow. When On Error Continue scope is invoked, all the processors in error block are executed and success response is sent back to the client with payload which is set in error flow. In this case payload is set to “Error” value in error block. Hence it will be sent back to client with http code as 200 as On error continue always sends success error code. Hence correct answer is
Response body: “Error” Default response status code: 200

Question 20

A RAML example fragment named StudentExample.raml is placed in the examples folder in an API specification project. What is the correct syntax to reference the fragment?

Answer 20

Correct answer is
examples: !include examples/StudentExample.raml
The !include tag takes a single argument: the location of the external file containing the property value. This location may be an absolute URL, a path relative to the root RAML file
A location starting with a forward slash (/) indicates a path relative to the location of the root RAML file, and a location beginning without a slash is interpreted to be relative to the location of the including file.

Question 21

What module and operation will throw an error if a Mule events payload is not number

Answer 21

Correct answer is Validation modules Is Number operation.
This processor validates that a String can be parsed as a number of a certain type.

Question 22

Note that private flow has error scope defined as On Error Continue . So when error occurs in private flow , it is handled by this On Error Continue scope which sends success response back to main flow and does not throw back an error. So main continues normally and payload is set to Success – main flow.
Hence correct answer is Success – main flow

Answer 22

Note that private flow has error scope defined as On Error Continue . So when error occurs in private flow , it is handled by this On Error Continue scope which sends success response back to main flow and does not throw back an error. So main continues normally and payload is set to Success – main flow.
Hence correct answer is Success – main flow

Question 23

Refer to the exhibit. The error occurs when a project is run in Anypoint Studio. The project, which has a dependency that is not in the MuleSoft Maven repository, was created and successfully run on a different computer. What is the next step to fix the error to get the project to run successfully?

Answer 23

As dependency is not present in Mulesoft Maven repository, we need to install the dependency on computer’s local Maven repository. Install the dependency to the computer’s local Maven repository is correct choice.

Question 24

What values are accessible in the child flow after a web client submits a request to http://localhost:8081/order?color=red?

Answer 24

Correct answer is as below as all of it will be accessible in child flow.
payload
quantity var
color query param

Question 25

A web client submits a request to http://localhost:8081?flrstName=Mahesh. What is the correct DataWeave expression to access the firstName parameter?

Answer 25

Correct answer is below as it follows the required syntax #[attributes.queryParams.firstName]

Question 26

A mule project contains MySQL database dependency . The project is exported from Anypoint Studio so that it can be deployed to Cloudhub. What export options needs to be selected to create the smallest deployable archive that will successfully deploy to Cloudhub?

Answer 26

Correct answer is select the Include project modules and dependencies option. This option adds up bundling the actual modules and external dependencies required to run the Mule application in a Mule runtime engine. Attach Project Sources is an optional thing to include metadata that Studio requires to reimport the deployable file as an open Mule project into your workspace.

Question 27

A Utlility.dwl is located in a Mule project at src/main/resources/modules. The Utility.dwl file defines a function named encryptString that encrypts a String What is the correct DataWeave to call the encryptString function in a Transform Message component?

Answer 27

Correct answer is the below one as it follows the correct syntax. %dw 2.0 output application/json import modules::Utility — Utility::encryptString( “John Smith” )

Question 28

Refer to exhibits. A web client submits a request to http://localhost:8081. What the structure of the payload at the end of the flow?

Answer 28

Scatter-Gather sends the event to each routes concurrently and returns a collection of all results. Collection is an Object of Objects. Each object contains attributes and payload from each Mule event returned from a flow. Hence correct answer is [ “0”: { “attributes”: —, “payload”: “Banana” } “1”: { “attributes”: —, “payload”: “Banana” } ]

Question 29

Refer to the exhibits. The main flow contains an HTTP Request in the middle of the flow. The HTTP Listeners and HTTP Request use default configurations. What values are accessible to the Logger at the end of the main flow after a web client submits the request to http://localhost:8080/order?color=red?

Answer 29

In this case as outbound call is made using HTTP: POST /child , all attributes will be replaced by this invocation. Hence query parameter will not be accessible at logger. Hence correct answer is payload quantity var

Question 30

Refer to the exhibits. What is valid expression for the Choice router’s when expression to route the events to the domesticShipping flow

Answer 30

Correct answer is #[payload == ‘US’] as this follows the correct syntax

Question 31

Assume that you are invoking Mulesoft API using Postman tool. Mulesoft API follows standard HTTP status code conventions correctly. If service returns an error with HTTP code 401. What can be concluded from this response?

Answer 31

The HTTP 401 Unauthorized client error status response code indicates that the request has not been applied because it lacks valid authentication credentials for the target resource.

Question 32

A web client submits a request to http://localhost:8081?accountType=personal. The query parameter is captured using a Set Variable transformer to a variable named accountType. What is the correct DataWeave expression to log accountType?

Answer 32

vars: Keyword for accessing a variable, for example, through a DataWeave expression in a Mule component, such as the Logger, or from an Input or Output parameter of an operation. If the name of your variable is myVar, you can access it like this: vars.myVar Hence correct answer is Account Type: #[vars.accountType]

Question 33

A Database On Table Row listener retrieves data from a CUSTOMER table that contains a primary key userid column and an increasing systemin_date_time column. Neither column allows duplicate values. How should the listener be configured so it retrieves each row at most one time?

Answer 33

You can set systemin_date_time column as watermark column in DB listener configuration as this field is increasing field.

Question 34

The Database Select operation returns five rows from a database. What is logged by the Logger component?

Answer 34

Array is the correct answer as select DB operation returns array of objects

Question 35

Refer to the exhibits. The two Mule configuration files belong to the same Mule project. Each HTTP Listener is configured with the same host string. Port number , path and operation values are shown in display names. What is the minimum number of global elements that must be defined to support all these HTTP Listeners?

Answer 35

In this case three configurations will be required each for port 8000, 6000 and 7000 Hence correct answer is 3

Question 36

Refer to the exhibit . What is the correct syntax to add an employee ID as URI parameter in an HTTP Listener path

Answer 36

While configuring HTTP listener path , URI parameters are always enclosed within curly braces. Hence correct answer is {employeeID}

Question 37

What path setting is required for an HTTP Listener endpoint to route all requests to an APIKit router

Answer 37

Correct answer is /* as this is correct syntax to configure HTTP Listener endpoint

Question 38

While configuring HTTP listener in Anypoint platform project in a flow , which of the following is NOT mandatory to be configured for getting the code compiled successfully?

Answer 38

Allowed methods for HTTP Listener is an optional field which can be used to restrict the HTTP method which will be accepted. For e.g. If you define allowed method as POST and request is received with method PUT then request will be rejected with below error. HTTP response with status code 405 Method Not Allowed.

Question 39

Refer to the exhibits. The Batch Job processes, filters, and aggregates records. What is the expected outcome from the Logger component

Answer 39

Batch scope has filter criteria which says payload mod 2 = 0 which means only 2, 4 and 6 will be in batch scope. So payload for each of these will be incremented by 10. Aggregator has batch size defined as 2. So it will process in batch of two records. Hence correct answer is [20,40] [60]

Question 40

In the execution of the Scatter-Gather , the flow route completes after 10 seconds and the flow2 route completes in 40 seconds. How many seconds does it take for the Scatter-Gather to complete?

Answer 40

Scatter-Gather sends the event to each routes concurrently. Hence both route in this example will start in parallel. So total time to complete processing is 40 seconds which is the correct answer

Question 41

What should the the first line of RAML API definition contain?

Answer 41

RAML specifications always start with the comment containing RAML version. Please find the sample below #%RAML 1.0

Question 42

What HTTP status code does the HTTP specification indicate to be returned when an unsupported value is sent in the Accept Header? 503

Answer 42

The HyperText Transfer Protocol (HTTP) 406 Not Acceptable client error response code indicates that the server cannot produce a response matching the list of acceptable values defined in the request’s proactive content negotiation headers, and that the server is unwilling to supply a default representation. Proactive content negotiation headers include: Accept Accept-Charset Accept-Encoding Accept-Language

Question 43

While creating notebook, what is the syntax of the first function call to generate a client to make calls to the API?

Answer 43

Syntax for createClient command is as below API.createClient(alias, url, options? cb?) alias :The name with which you call this client from now on (Required) url :A URL that directs to the API’s RAML definition (Required) options: A specification of default headers, a fallback body, or other option. Type the method in the notebook and place the cursor on this argument for more details. (Optional) cb :Pass in a custom callback to run when the client has loaded (Optional) Sample example is as below

Question 44

Which of the following HTTP method should NOT be idempotent in nature?

Answer 44

HTTP methods are classified as following: +———+——+——- | Method || Idempotent | +———+——+——- | CONNECT || no | | DELETE || yes | | GET || yes | | HEAD || yes | | OPTIONS || yes | | POST || no | | PUT || yes | | TRACE || yes | +———+——+——-

Question 45

What is true about RESTful API’s

Answer 45

As per the REST architecture, a RESTful Web Service should not keep a client state on the server. This restriction is called Statelessness. It is the responsibility of the client to pass its context to the server and then the server can store this context to process the client’s further request.

Question 46

Which is NOT a valid fragment identifier in RAML 1.0?

Answer 46

Extension is the correct answer API fragment is one of the following types defined by RAML.org. Trait Resource Type Library Type User Documentation Example Annotation Type Security Scheme

Question 47

What is the correct way to specify queryParameter in RAML 1.0?

Answer 47

Correct syntax is /flights: get: queryParameters: destination: required: false enum: – SFO – LAX – CLE

Question 48

What language is used to create API Notebooks?

Answer 48

JavaScript is the correct answer as An API Notebook is a web-based tool for building interactive tutorials and examples in a JavaScript scripting workspace

Question 49

What is the difference between a subflow and a sync flow

Answer 49

subflow has no error handling of its own and sync flow does

Question 50

Is a root element needed when creating a response using Dataweave?

Answer 50

Only needed for XMLs

Question 51

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

Answer 51

In Mule4 – #[attributes.queryParams.{paramaterName}]

Question 52

Where would you create SLA Tiers for an API

Answer 52

API Manager

Question 53

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

Answer 53

To avoid duplicate processing of records in a database

Question 54

A Batch Job scope has three batch steps. An event processor in the second batch step throws an error because the input data is incomplete. What is the default behavior of the batch job after the error is thrown?

Answer 54

All processing of the batch job stops

Question 55

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

Answer 55

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

Question 56

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

Answer 56

Array

Question 57

Why would use SOAP instead of http

Answer 57

Successful/retry logic for reliable messaging functionality

Question 58

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

Answer 58

Array of Mule event objects

Question 59

What asset can NOT be created using Design Center?

Answer 59

API Portals

Question 60

What is the correct syntax to reference a fragment in RAML

Answer 60

!include examples/BankAccountsExample.raml

Question 61

What does the minus minus operator do in DataWeave

Answer 61

Removes items from a list

Question 62

What does the zip operator do in DataWeave

Answer 62

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

Question 63

What is a core characteristic of the Modern API?

Answer 63

API is designed first using an API specification for rapid feedback

Question 64

What statement is part of MuleSoft’s description of an application network

Answer 64

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

Question 65

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

Answer 65

Object

Question 66

How is policy defined in terms of classloader of an API

Answer 66

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

Question 67

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

Answer 67

CloudHub worker

Question 68

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

Answer 68

Rest API

Question 69

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

Answer 69

client-id-required

Question 70

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

Answer 70

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

Question 71

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

Answer 71

#[vars]

Question 72

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

Answer 72

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

Question 73

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

Answer 73

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

Question 74

What is the purpose of API autodiscovery?

Answer 74

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

Question 75

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

Answer 75

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

Question 76

What is NOT part of a Mule 4 event?

Answer 76

nboundProperties

Question 77

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

Answer 77

Attributes are replaced with new attributes from the HTTP Request response

Question 78

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

Answer 78

Validation module's Is number operation

Question 79

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

Answer 79

Anypoint Exchange enables publishing, sharing, and searching of APIs

Question 80

How can you call a flow from Dataweave?

Answer 80

Look up function

Question 81

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

Answer 81

not needed

Question 82

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

Answer 82

10

Question 83

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

Answer 83

The Mule runtime's embedded API Gateway

Question 84

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

Answer 84

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

Question 85

What are the latest specfification of RAML available

Answer 85

1

Question 86

What is the face of CloudHub and integrates with Platform Services

Answer 86

Runtime Manager Console

Question 87

DataWeave is tightly integrated with

Answer 87

Mule runtime

Question 88

What is the use of API Notebooks

Answer 88

Test API functions

Question 89

What are the features of CloudHub Fabric

Answer 89

Horizontal Scaling

Question 90

What is the use of DevKit in Mule 4

Answer 90

No use

Question 91

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

Answer 91

An event processor

Question 92

A Scatter-Gather processes a number of separate HTTP requests. Each request returns a Mule event with a JSON payload. What is the final output of the Scatter-Gather?

Answer 92

n Object containing all Mule event Objects

Question 93

Which one of them are flows in Mule

Answer 93

async flow sync flow subflow

Question 94

A value has been assigned to Set Variable. Under what scope does the value of assigned variable?

Answer 94

Mule Event

Question 95

Why the http.port is being set as variable or configurable in anypoint exchange?

Answer 95

So it can be Automatic reconfigured by the hosting server

Question 96

What is the correct way to fill in the Port value using config variable?

Answer 96

${http.port}

Question 97

Given the flow below. What is the expected payload at the logger? Note: with flatten method ___ [listener]-> [setpayload ({“Lunch”:”Adobo”,”Dinner”:”Kaldereta”})] -> [[scatter-gather] -> [set payload ({“FastFood”:”McDonalds”})] -> [set payload (payload”)] -> [logger]] -> [transform message (flatten)] -> [logger] ___

Answer 97

[{"FastFood": "Mcdonalds"}, {"Lunch": "Adobo", "Dinner": "Kaldereta"}, {"Lunch": "Adobo", "Dinner": "Kaldereta"}]

Question 98

What is the final payload? ___ [listener] -> [[scatter-gather] -> [set payload (Banana)] -> [set payload (Apple)] -> [set payload (Orange)]] -> [logger] —— ___

Answer 98

{ 0: { attributes: {...} payload: "Banana" }, 1: { attributes: {...} payload: "Apple" }, 2: { attributes: {...}}

Question 99

You have created a global error handle what should be done to set it as the application’s default error handler.

Answer 99

Set it under global configuration elements on global.xml

Question 100

Refer to exhibit. The flow below is trying to consume a SOAP WebService but after deploying the application an exception was thrown as seen in the console below. ___ [listener (GET /flights)] -> [consume (listAllFlights)] -> [logger] ___ What to do next to fix the problem?

Answer 100

Set a SOAP input by adding Transform Message processor

Question 101

A msql dependency was added in Mule Project, what is the minimum deployable archive setting for the application to run in cloud hub?

Answer 101

nclude project modules and dependencies

Question 102

Given the following json input and xml output. What is the dataweave code that transform the json array to xml? ___JSON___ [{ “Airline”: “United”, “Accommodation”:”Economy” }, { “Airline”: “American”, “Accommodation”: “BusinessClass” }] ___ ___XML___ United Economy American BusinessClass ___

Answer 102

Given the following json input and xml output. What is the dataweave code that transform the json array to xml? ___JSON___ [{ “Airline”: “United”, “Accommodation”:”Economy” }, { “Airline”: “American”, “Accommodation”: “BusinessClass” }] ___ ___XML___ United Economy American BusinessClass ___

Question 103

Given the following flow and Transform Flight Type. How do the code in Lookup transform look likes if the LookupTransform output is “AMERICANAIRLINE”? Below is Transform Flight Type code. ___ %dw 2.0 output application/java fun name(FlightType:String) = upper(FlightType) — name(payload.FlightType) ___ lookup [listener] -> [logger] -> [set payload ({“FlightType”:”americanairline”})] -> [transform message (Lookup Transform)] -> [logger] lookupflights [transform message (Transform FlightType)]

Answer 103

lookup("lookupflights",{FlightType:payload.FlightType})

Question 104

A web service implements an API to handle requests to http://flights.com/flight?airline=“”. A web client makes a request to this API implementation at http://flights.com/flight?airline=“American”. What is the correct DataWeave expression to retrieve the value American?

Answer 104

#[attributes.queryparams.airline]

Question 105

What is the correct dataweave expression to set on choice so UnitedAirline will be selected? ___ choice [listener] -> [set payload (UnitedAirline)] -> choice -> Expression? -> [Set Payload] -> [Logger] -> Default -> [Set Payload] ___

Answer 105

#[payload == 'UnitedAirline']

Question 106

A developer is tasked to create a function named “doProcess” that accepts a string and a number as its parameters in the same order. How should the developer declare this function in a DWL file?

Answer 106

fun doProcess( data:String, num:Number ) = /do Something/

Question 107

Which of the following is the correct way of declaring a local variable?

Answer 107

var fullname = payload.firstname ++ " " ++ payload.lastname

Question 108

How do you use the capitalize function?

Answer 108

import capitalize from dw::core::Strings output application/json --- { full_name: capitalize("Juan Dela Cruz") }

Question 109

What is the output of Map?

Answer 109

Array

Question 110

There’s an existing webservice endpoint that don’t have SLA and Proxy. What should be done if an SLA should be added but not to increase worker size?

Answer 110

Deploy the application in Runtime and set an api manager to connect to it

Question 111

Assume that a database table contains accountID column. This data is unique for every record. The MULE application used ‘On Table row’ components to sync data from database table. What process to setup to make sure accountID is always unique?

Answer 111

Set the watermark column to AccountID.

Question 112

One IT team developed an API in 2 months. Another IT team developed the same API what could have prevented wasted 2 months’ effort.

Answer 112

Center for Enablement

Question 113

A RAML data type fragment named FlightType.raml is placed in the dataTypes folder in an API specification project. What is the correct syntax to reference to the fragments?

Answer 113

type : !include dataTypes/FlightType.raml

Question 114

What is the correct way to start a Modern API according to Mulesoft?

Answer 114

Gather requirements and involve stake holders for feedback loop

Question 115

What is the first step in designing a Mule application.

Answer 115

gather requirements, prototyping, spec driven.

Question 116

How to route to all HTTP Requests?

Answer 116

/*

Question 117

Which among the following is the correct way to add a uri parameter in the resource below? ___ Display Name: GET /resource Basic Settings Connector configuration: HTTP_Listener_config General Path: /resource ____

Answer 117

/(ID)

Question 118

What is the syntax for input parameters to use URI parameter? ___ Display Name: Copy_of_Select Basic Settings Connector configuration: Database_Connectivity Query SQL Query Text: SELECT * FROM american WHERE ID = :ID Input Parameters: ?

Answer 118

#[{'ID': attributes.uriParams.ID}]

Question 119

After enforcing an SLA policy in API manager, what is the next step to enforce the API to add client ID and client secret?

Answer 119

Modify the API spec in Design Center to require client id and client secret headers with requests

Question 120

Implementation (NOT interface) of an API was modified, what needs to be done for changes to take effect

Answer 120

restart the application

Question 121

A new SLA policy was created. What needs to be done for the policy to be enforced?

Answer 121

redeploy the application