Mulesoft - Associate / Development Fundamental
?Share domain
"use to share connectors and endpoint between application ONLY available to customer hosted Mule run time not on cloudhub. only the following can be shared
?MEL basic syngtax
#[] encapsulates all Mule expression, #[message] holds a context object, #[message.payload] dot notation to access fields or methods
A web service implements an API to handle requests to http://acme.com/customers/{state}. A web client makes a request to this API implementation at http://acme.com/customers/CA. What is the correct MEL expression to retrieve the value CA?
#[message.inboundProperties.'http.uri.params'.state]
Refer to the exhibit. What is the correct Mule expression for accessing the city Cleveland? payload [{ "orderID": 592, "shipping": "international", "city": "Tokyo" }, {"orderID": 972, "shipping": "domestic", "city": "Cleveland" } ]
#[message.payload[1].city]
What reserved property can be used in a Mule application to allow an HTTPS Listener to be accessed by external web clients after the Mule application is deployed to CloudHub?
${https.port}
What is the maximum number of Mule applications that can run in a CloudHub Worker?
1
?Common HTTP Status Code
200 - ok - return by get delete patch put 201
What port number is used to expose the domain URL of a Mule application deployed to CloudHub?
80
What is the minimum required configuration in a flow for a Mule application to compile?
A message processor in the Process section of a flow
?what is a web service?
A method of communication that allow two software systems to exchange data over the internet
?Whats an API ?
API - APplication Programming Interface. Provide - What to call ( operations) - What to send with a call (Input) - What you get back from a call ( outputs) - Underlying Data Types
What MuleSoft product enables publishing, sharing, and searching of APIs?
API Exchange
?API Gateway are use to enforce the polcies that are define by
API Manager
What asset can NOT be created using Anypoint Platform Design Center?
API Portals
?MEL ( Mule Expression Language)
Access and evaluation the data in payload, properties and variables of a Mule Message, accessible and useable from every messge processor in MULE
?Mule 3 message properties - outbound properties
Added by message processor Read/write access can set remove, copy
?Flows
All flows are identified by name and can be called via flow reference components in other flos
What happens to the outbound properties of a Mule message after completing an outbound HTTP Request?
All previous outbound properties are removed
?Mule 3 message properties - attachments
Ancillary info to the message, similar to and email attachment
How are outbound properties automatically passed to an outbound REST request using an HTTP Request component?
As headers
A client submits a GET request to a Mule 4.0 application to the endpoint /customers?id=48493. Where can the id be accessed in the Mule 4.0 application?
Attributes
?Common HTTP status Code 400
Bad request - The request could not be performed by the server due to bad syntax or other reason in request. Return by All
?Database connector
Connect to almost any JDBC relational database (Java base) Support Select, insert, update, delete, stored procedures, bulk execute, DDL request like create and alter
What statement is part of MuleSoft's description of an application network?
Create reusable APIs and assets designed to be consumed by other business units
?Common HTTP status Code 201
Created - new resource or object in a collection Returned by POST
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
Refer to the exhibit. What is a valid way to represent this XML example in RAML? <?xml version="1.0" encoding="UTF-8"?> <music> <collection>Classic rock</collection> <artists> <artist>Deep Purple</artist> <artist>Rainbow</artist> </artists> </music>
D. music : collectiON: Classic Rock artists: artist: Deep Purple artist: Rainbow
?Mule Debugger
Debugger listens for incoming TCPconnections to localhost port 6666 ( can be change in projct rn configuratoin
What is the main purpose of flow designer in Design Center?
Design and develop fully functional Mule applications in a hosted development environment
What is NOT a role of an API proxy application running in a Mule runtime?
Determine which response message is allowed to pass back from the API backend service
?API Gateway point of control
Determines which traffic is authorized to pass through the API to backend services, Meters the traffic flowing through, Logs all transactions , Applies runtime policies to enforce governance like rate limiting, throttling and caching
?Anypoint studio
Eclipse base intergration development environment
?What are the layers of Mulesoft API?
Experience API, Process API and System API
?Restful Web Service requests method uses standard HTTP protocol
Get - retrieves the current state of a resource in some reporesentation (usually JSON or XML) POST - create a new resource DELETE - delete a resource PUT - replaces a resource completely ( if the resource doesn't exist a new one is created) PATCH - partially updates a resource
A Mule application properties file named training-DEV.properties has been defined. How is the properties file referenced in the Mule application?
In a Property Placeholder element
A WSDL defines a conversionRate operation with an input message that requires two parts: fromCurrency and toCurrency. How are fromCurrency and toCurrency set in the flow in order to call the conversionRate operation using a Web Service Consumer component?
In the message payload
What property of a Mule message is immutable?
Inbound properties
Refer to the exhibit. There is an error underneath the flight_id resources in the GET method. What needs to be done to fix the problem? #%RAML 1.0 title: American version: 1.0 /flights: get: /{flight_id}: get:
Indent "get" method under {flight_id} resource one level down (to the right)
What is true for a Mule subflow ?
It is executed synchronously (send data in forms of blocks)
An inbound Database connector is configured to select rows from a MySQL database. What is the format of results returned from the database query?
Java
?Anatomy of a flow:
Message source -> Message Processors with Error handling
?Mule 3 application are build using elements that are
Mule Message Processors - Accept and process messages through a series of message processors plugged togther in a flow
?Mule 4 event structure
Mule event ( Mule message [Atributes], [Payload]), [Variables])
?Mule 4 application are built using components that are
Mule event Processor
?Mule 3 message structure
Mule message ( [Inbound properties], [Outbound properties], [payload], [Attachments])
?MEL Basic context object - message
Mule message that the message processor is processing
?Common HTTP status Code 304
Not modified- nothing was modified by the request Return by Patch, PUT
What HTTP method in a RESTful web service is typically used to replace a resource completely?
PUT
What message processor can set the HTTP response status code to 200?
Property
What is required for two Mule applications to share data using a VM connector component?
Put the Mule applications in the same non-default Mule domain
What is the default processing strategy of a one-way flow?
Queued-asynchronous
What out-of-the-box policy can safeguard against Denial of Service type attacks?
Rate limiting
?Term API
Refer to any part of RESTful Web Service - The web service API (definition file) - The web service interface implementing the API - The web service implementation itself - A proxy for the web service to control access to it
?Common HTTP status Code 404
Resource not found - The URI is not recognized by the server. Return by All
?Two Main Types of web services
SOAP - traditional. Communication rules are defined in an XML - based WSDL ( Web services Description Language) file RESTful - Simpler Representational state transfer (REST) base communication. Using existing HTTP communication protocol
?Common HTTP status Code 500
Server error - Generic something went wrong on the server side. Return by All
What is NOT a way to pass data to a RESTful web service in a flow using an outbound HTTP Request component?
Set inbound properties before the HTTP Request component
What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?
System
A Mule application has two flows named parentFlow and childFlow. A flow variable is defined in parentFlow. What is the scope of the flow variable when the parentFlow calls childFlow using a flow reference?
The flow variable is accessible in childFlow, can be changed, and changes are seen back in parentFlow
Refer to the exhibit. A web client posts a request to http://localhost:8081/. What is the response from localhost?
Two
?Common HTTP status Code 401
Unauthorized - Authorization credentials are required or user does not have access to the resource/method they are requesting. Return by All
?Transforing data
Use Database Weave and Transform message component
What is the purpose of the router element in APIkit?
Validates requests against RAML API specifications and routes them to API implementations
?Flow variables
Variables on the msasage tied to the current, reference as flowvars
What file type is required to configure a Web Service Consumer to consume a SOAP web service?
WSDL
What is the format of documents exchanged in a SOAP request/response interaction?
WSDL
?Automating testing of application
With Munit, s a mule application testing framework for building automated tests, Fully integrated with Anypoint Studio
?Snynchronous flow
all processing including the processing of response done in same thread, uses only the message source thread pool, flow's thread pool is elastic and will have one idle thread that is never used, tuning for higher throughput happens on the connector receiver's level
?API proxy
application that controls access to a web service, restricting access and useage through the use of API gateway
?Mule 3 message properties - Payload
core of the message, contains primary info to be processed, contains a java object
?SLA tier
defines the # of request that can be made per time frame to an API
?flow processing strategy
determines how mule implements message processing for a given flow, should the mssage be process synchronously(on the same thread) or asynchronously ( on a different thread)?
?java virtual machine (VM) transport
each app in mule instance has its own unique set of VM endpoints, only handle communication within an app or between apps in the sam domain, by default uses in-emory queues but can optionally be configured to use persistent queues
A RAML example fragment named BankAccountsExample.raml is placed in the examples folder in an API specification project. What is the correct syntax for to reference the fragment?
example: !include examples/BankAccountsExample.raml
?Subflows
executed exactly as if the processors were still in the callign flow, ALWAYS run synchronously in the same thread, Inherit the processing and exception strategies of the flow that trigger the execution
?Context Variable
flowVars, session Vars, recordVars.
?Restful interfaces
for an app will have listeners for each resource/ method pairing defined by API. Can be created manually or generate from API definition
Refer to the exhibit. What is the correct URL to perform a GET request to /patients? #%RAML 1.0 title: ACME baseURL: http://dev.acme.com/api /patients: get: queryParameters: year: type: integer
http://dev.acme.com/api/patients?year=2016
Refer to the exhibits. What is the correct URL to trigger the execution of the getAccountsFlow?
http://localhost:8500/acme/accounts
?flows processing strategy - is set to synchronous
if the message srouce is request-response )sender of message expecting a response. Or the flow partakes in a transation
?API Manager
manage acess to API proxies, define SLA tiers and Apply runtime policies
?flow procesing strategy is set to queued asynchronous
message source is not expecting a response
?what determines a flow's processing strategy
mule auto set flow to be synchronous or queued-asynchronous
?MEL Basic context object - mule
mule instance that the application is running
?Application properties
no hard codeing credentials, Injected into app at runtime, can be encryped, Defined in .properties files (Separate property files can host values specific to an environment EX. App-dev.properties and app-prod.properties
?APIKit
open- source toolkit, generate an interface automatically from a RAML API Definition , generate main routing flow and flows for each of the api resource / method pairs
?Cloud Hub
platform as a Service (PaaS) - hosted mule runtime on AWS
?out of the box policies
rate limiting, throttling, security can define custom policies and can apply mult. Policies and set the order
?Flows contas 3 thread pools
receiving (message sources threads) flow processing ( message processor's threads) dispatching ( outbound endpoints threads)
In a RAML specification, what attribute defines a query parameter to be optional for a resource?
required: false
?API Gateway
runtime designed and optimized to host an API OR open a connection to an API deployed to another runtime
?MEL basic context objects - Server
server - operating system that message processor is running
?Mule 3 message properties - Inbound properties
set from the message source - Read-only access - persist throuht the flow
?RESTFUL web services return HTTP Status code with the response
status code prvide feedback for the outcome successed failed updated
?specify property files
use environment variable in an application whose values must be set when the application starts, can use a dynamic value for the location in the property placeholder
?MEL Basic contezt object - app
users application the current flow is deplyed in
?Defining application properties
usually in src/main/resources folder db.port = 3306, create a properties placeholder global element use properties in the application ${db.account)
?Session variable
variable tied to a message for ITS lifecycle across flow, application and server. They are persisted across some but NOT ALL transport barrier , Reference as sessionVars
What is NOT part of a Mule 3 message?
variables
