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Understanding functional and technical aspects of MuleSoft Certified Developer - Level 1 Deploying and managing APIs and integrations

The following will be asked from you in the exam:

• Create and deploy API proxies
• Use policies, including client ID enforcement, to secure an API
• Connect an API implementation to API Manager using autodiscovery
• Package Mule applications for deployment
• Use CloudHub properties to ensure deployment success

Understanding functional and technical aspects of MuleSoft Certified Developer - Level 1 Handling errors

The following will be asked from you in the exam:

• Map errors to custom application errors
• Create one or more error handlers for a flow
• Describe the data structure of the Mule Error object
• Describe the default error handling in a Mule application
• Compare and contrast how the On Error Continue and On Error Propagate scopes work
• Handling errors
• Use the Try scope to specify error handlers for one or more event processors

NEW QUESTION 12
Refer to the exhibits.


A Mule application contains a Choice router. What is logged when the flow completes?

• A. EU
• B. "REGION"
• C. ["US", "EU"]
• D. US

Answer: D

NEW QUESTION 13
A Mule project contains a MySQL Database dependency. The project is exported from Anypoint Studio so it can be deployed to CloudHub.
What export options create the smallest deployable archive that will successfully deploy to CloudHub?
What export option create their smallest deployable archive that will successfully deploy to CloudHub?
A)

B)

C)

D)

• A. Option B
• B. Option D
• C. Option C
• D. Option A

Answer: A

NEW QUESTION 14
Which of the below is not a valid category for connector type?

• A. Gold
• B. Premium
• C. Select
• D. Community

Answer: A

Explanation:
Gold is not valid category for connector types.
MuleSoft Doc Ref : https://docs.mulesoft.com/mule-runtime/3.7/anypoint-connectors#connector-support-categories

NEW QUESTION 15
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?

• A. examples: #import examples/StudentExample.raml
• B. examples: !include examples/StudentExample.raml
• C. examples: !include StudentExample.raml
• D. examples: #import StudentExample.raml

Answer: B

Explanation:
To include property. To keep the API definition concise, you can include external content, such as documentation, schemas, and frequently used patterns outside the definition itself. The parser interprets !include as if the content of the externally-hosted file or a URL were declared in-line.
To use the fragments in RAML you have to include the exact path(copy the path) of that fragment you want to use as shown below Option 3 is the correct as correct syntax is examples: !include examples/StudentExample.raml

NEW QUESTION 16
How we can scale deployed Mule application vertically on cloudhub?

• A. Adding multiple workers
• B. Changing worker size
• C. Mule applications can be scaled only horizontally
• D. Option 1 and 2 both can be used

Answer: B

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

NEW QUESTION 17
What is the correct syntax for a Logger component to output a message with the contents of a 3SON Object payload?

• A. #["The payload is: " + payload]
• B. The payload is: $(payload)
• C. The payload is: #[payload]
• D. #["The payload is: " ++ payload]

Answer: D

Explanation:
Option 3 is the only corect answer as it concatenates payload with String.
Below option wont work.
#["The payload is " ++ payload]
Concatenation function expects both arguments to be string. As the question says payload is json object , this will throw error while running it. You can try this in Anypoint Studio and you will get the same result which I mentioned.
hence correct answer is
The payload is: #[payload]

NEW QUESTION 18
Refer to the exhibit.

The main flow contains a Flow Reference for the child flow.
What
values are accessible in the child flow after a web client submits a request to http://localhost:8Q81/order?
color=red?

• A. payload
  quantity var
• B. payload
• C. payload
  quantity var color query param
• D. payload
  color query param

Answer: C

NEW QUESTION 19
A Mule application contains two HTTP Listeners, each configured for different API endpoints: http://acme.com/apis/orders and http: //acme .com/a pis/customers.
What base path value should be set in an HTT? Listener config element so that it can be used to configure both HTTP Listeners?

• A. /apis/*
• B. /apis/?
• C. /apis/orders|customers
• D. /apis/

Answer: A

Explanation:
Option 2 is the correct answer as /api/* accespts everything starting with /api/

NEW QUESTION 20
Refer to the exhibit.

What is the response to a web client request to

• A. null
• B. After
• C. Validation Error
• D. before

Answer: C

Explanation:

NEW QUESTION 21
Refer to the exhibit.

What is the correct syntax to add an employee ID as a URI parameter in an HTTP Listener path?

• A. # [employeelD]
• B. ${emp!oyeelD}
• C. {employeelD}
• D. (employeelD)

Answer: C

NEW QUESTION 22
Refer to the exhibit. The Batch Job processes, filters and aggregates records, What is the expected output from the Logger component?

• A. [20. 40] [60]
• B. [20, 40, 60]
• C. [10. 20] [30, 40] [50, 60]
• D. [10. 20, 30. 40, 50, 60]

Answer: A

NEW QUESTION 23
Refer to the exhibits.


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?
Refer to the exhibits. 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?

• A. Response body: "Error" Default response status code: 200
• B. Response body: "Success - Begin* Default response status code: 200
• C. Error response body: error, description Default error response status code: 500
• D. Response body: "Success - End" Default response status code: 200

Answer: A

Explanation:
Correct answer: Response body: "Error" Default response status code: 200.
-------------------------------------------------------------------------------------------------------------------------------------------------
1) Payload is successfully set to "Success - Started Flow"
2) When HTTP Request throws an error, execution halts
#[error.description] = "ABC"
#[error.errorType] = "XYZ"
3) The On Error Continue scope handles the error. 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.
4) "Error" is returned to the requestor in the body of the HTTP request with HTTP Status Code: 200 as On error continue always sends success error code.
Reference Diagram:

NEW QUESTION 24
Refer to the exhibits.


The Validation component in the Try scope throws an error.
What response message is returned to a client request to the main flow's HTTP Listener?
The Validation component in the Try scope throws an error. What response message is returned to a client request to the main flow's HTTP Listener?

• A. Validation Error
• B. Error - main flow
• C. Error - Try scope
• D. Success - main flow

Answer: B

Explanation:
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
1) HTTP listener received request
2) The Flow Reference calls the child flow
3) The Is Number validator creates an Error Object because the payload isn't an integer. Child Flow execution stops
#[error.description] = "payload is not a valid INTEGER value"
#[error.errorType] = VALIDATION:INVALID_NUMBER
4) The On Error Continue handles the errorThe payload is set to "Error - Sub Flow"
5) "Error - Sub Flow" is returned to the main flow as if the child flow was a success. The Set Payload is executed. The payload is reset to "Success - Finished Main Flow"
6) "Success - Main Flow" is returned to the requestor in the body of the HTTP request. HTTP Status Code: 200 As you can see, in the above example, because the error was caught by an On Error Continue scope in the child flow (RED in, GREEN out) when the Mule Message returns to the parent flow, the parent flow knows none-the-different that there was a failure because the on error continue returns a 200 success message. Note that because, to the mainFlow, the childFlow appeared to succeed, the processing of mainFlow resumed after the flow reference.

NEW QUESTION 25
Refer to the exhibit.

What should be changed to fix the 415 error?

• A. set the request Content-Type header to text/plain
• B. Set the request Content-Type header to application/] son
• C. set the response Content-Type header to application/json
• D. set the response Content-Type header to text/plain

Answer: B

NEW QUESTION 26
Refer to the exhibits.
Larger image

Larger image

Larger image

The Mule application configures and uses two HTTP Listener global configuration elements.
Mule application is run in Anypoint Studio.
If the mule application starts correctly, what URI and port numbers can receive web client requests? If the mule applications fails to start , what is the reason for the failure?

• A. The mule application start successfully
  Web client requests can only be received at URI on port 2222 but not on port 3333
• B. The mule application start successfully
  Web client requests can be received at URI on port 2222 and on port 3333.
• C. The mule application fails to start
  There is URL path conflict because both HTTP Listeners are configured with same path
• D. The mule application fails to start because of the port binding conflict as HTTP request also use same port i.e. 3333

Answer: B

Explanation:
In this case both the flows can start without any error and requests can be received on both ports. Flow names httpListener1 can call other flow using HTTP request without any issues.

NEW QUESTION 27
Refer to the exhibits.


What payload and quantity are logged at the end of the main flow?

• A. [[1,2,3,4], 10]
• B. [[order1, order2, order3, order4], 14]
• C. [[1,2,3,4], 14]
• D. [orderlorder2order3order4,14]

Answer: C

NEW QUESTION 28
What valid RAML retrieves details on a specific by its orderld as a URL parameter?
A)

B)

C)

D)

• A. Option A
• B. Option B
• C. Option D
• D. Option C

Answer: A

NEW QUESTION 29
Refer to the exhibit.

What expression correctly specifies input parameters to pass the city and state values to the SQL query?
A)

B)

C)

D)

• A. Option A
• B. Option B
• C. Option D
• D. Option C

Answer: A

Explanation:
MuleSoft Documentation Reference : https://docs.mulesoft.com/db-connector/1.9/database-connector-select

NEW QUESTION 30
......

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