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The MCD-Level-1 certification exam is targeted at developers who are familiar with the MuleSoft platform and have experience in building Mule 4 applications. MCD-Level-1 exam measures the developer's understanding of Mule 4 concepts, including dataweave, flow control, error handling, and API design. Developers who pass the exam demonstrate their ability to build scalable, resilient and secure applications using MuleSoft.
NEW QUESTION # 24
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
- B. payload
quantity var color query param - C. payload
color query param - D. payload
quantity var
Answer: B
NEW QUESTION # 25
A RAML specification is defined to manage customers with a unique identifier for each customer record. What URI does MuleSoft recommend to uniquely access the customer identified with the unique ID 1234?
- A. /customers?custid=true&custid=1234
- B. /customers/1234
- C. /customers/custid=1234
- D. /customers?operation=get&custid=1234
Answer: B
Explanation:
URI parameter (Path Param) is basically used to identify a specific resource or resources . For eg : the URL to get employee details on the basis of employeeID will be GET /employees/{employeeID} where employees is resource and {employeeID} is URI parameter. Hence option 1is the correct answer
NEW QUESTION # 26
What payload is returned by a Database SELECT operation that does not match any rows in the database?
- A. Empty Array
- B. null
- C. false
- D. Exception
Answer: A
Explanation:
Empty array is returned when no rows are matched.
MuleSoft Doc Ref : https://docs.mulesoft.com/db-connector/1.9/database-connector-select
NEW QUESTION # 27
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.
A web client submits a request to the main flow's HTTP Listener that includes query parameters for the pedigree of the piano.
What values are accessible to the Logger component at the end of the main flow?
- A. payload
pedigree query params producer var - B. payload
producer var - C. payload
- D. payload
pedigree query params
Answer: B
Explanation:
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 option 2
NEW QUESTION # 28
Refer to the exhibit.
How many private flows does APIKIT generate from the RAML specification?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 29
A Batch Job scope has five batch steps. An event processor throws an error in the second batch step because the input data is incomplete. What is the default behavior of the batch job after the error is thrown?
- A. Error is ignored
- B. Batch is retried
- C. All processing of the batch job stops.
- D. Event processing continues to the next batch step.
Answer: C
Explanation:
In case of an error , batch job completes in flight steps and stops further processing.
MuleSoft Doc Ref : Handling Errors During Batch Job | MuleSoft Documentation The default is all processing will stop but we can change it by Max Failed Record field.
General -> Max Failed Records: Mule has three options for handling a record-level error: Finish processing, Continue processing and Continue processing until the batch job accumulates a maximum number of failed records. This behavior can be controlled by Max Failed Records.
The default value is Zero which corresponds to Finish processing.
The value -1, corresponds to Continue processing.
The value +ve integer, corresponds to Continue processing until the batch job accumulates a maximum number of failed records
NEW QUESTION # 30
From which application , Organization Administrators can approve/revoke/delete SLA tier access requests
- A. API Portal
- B. API Manager
- C. API Gateway
- D. API Exchange
Answer: B
Explanation:
Organization Administrators can approve/revoke/delete SLA tier access requests via API Manager only
NEW QUESTION # 31
Refer to the exhibits.
A Mule application has an HTTP Request that is configured with hardcoded values. To change this, the Mule application is configured to use a properties file named config.yaml.
what valid expression can the HTTP Request host value be set to so that it is no longer hardcoded?
- A. #[training.host]
- B. #[training:host]
- C. ${training:host}
- D. ${training.host}
Answer: D
NEW QUESTION # 32
Refer to the exhibits.
The orders.csv file is read, then processed to look up the orders in a database. The Mule application is debugged in Any point Studio and stops at the breakpoint.
What is the payload shown in the debugger at this breakpoint?
- A. "none"
- B. The database response
- C. The entire CSV file
- D. 0
Answer: D
NEW QUESTION # 33
Refer to the exhibits.
The main flow contains an HTTP Request. The HTTP Listeners and HTTP Request use default configurations.
What values are accessible in the child flow after a web client submits a request to http://localhost:8081/order? col or = red?
- A. payload
quantity var color query param - B. payload
- C. payload
color query param - D. payload
quantity var
Answer: B
NEW QUESTION # 34
A company has an API to manage departments, with each department identified by a unique deptld. The API was built with RAML according to MuleSoft best practices.
What is valid RAML to specify a method to update the details for a specific department?
A)
B)
C)
D)
- A. Option D
- B. Option C
- C. Option B
- D. Option A
Answer: A
Explanation:
URI parameter is basically used to identify a specific resource or resources
* Here we want to update details about specific department, so question is asking 'How to use URI parameter' in RAML
* Correct answer is
/departments:
/{deptId}:
patch:
NEW QUESTION # 35
An app team is developing a mobile banking app. It took them two months to create their own APIs to access transaction information from a central database. The app team later found out that another team had already built an API that accesses the transaction information they need.
According to MuleSoft, what organization structure could have saved the app team two months of development time?
- A. MuleSoft Support Center
- B. Center of Excellence
- C. Center for Enablement
- D. Central API Review Board
Answer: C
NEW QUESTION # 36
Refer to the exhibit.
The Database Select operation returns five rows from a database. What is logged by the Logger component?
- A. "Array"
- B. "Object"
- C. "LinkedHashMap"
- D. "CaselnsensitrveHashMap"
Answer: C
NEW QUESTION # 37
An HTTP Request operation sends an HTTP request with a non-empty JSON object payload to an external HTTP endpoint. The response from the external HTTP endpoint returns an XML body. The result is stored in a target named the Result.
What is the payload at the event processor after the HTTP Request?
- A. The XML response body
- B. null
- C. The original JSON request body
- D. A non-empty Java object
Answer: C
NEW QUESTION # 38
According to Mulesoft, how are Modern APIs treated as?
- A. SOAP API's
- B. Code
- C. Products
- D. Rest API's
Answer: C
Explanation:
Correct answer is Products
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
NEW QUESTION # 39
Refer to the exhibit. The input array of strings is passed to the batch job, which does NOT do any filtering or aggregating. What payload is logged by the Logger component?
- A. [ "Apple", "Banana" ]
- B. [ "Apptel2", "Bananal2" ]
- C. [ "Apptel", "Bananal", 2 ]
- D. Summary report of processed records
Answer: A
NEW QUESTION # 40
Refer to the exhibit.
What is a valid expression for the Choice router's when expression to route events to the documenticShipping flow?
- A. #[ payload == 'US' J
- B. #[ if(payload = 'US') J
- C. 0#[ payload = 'US' ]
- D. #[ if(payload == "US") ]
Answer: A
NEW QUESTION # 41
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. Error - main flow
- B. Error - Try scope
- C. Validation Error
- D. Success - main flow
Answer: C
NEW QUESTION # 42
Refer to the exhibits.
The Batch Job scope contains two Batch Steps scopes with different accept expression.
The input payload is passed to the Batch Job scope.
After the entire payload is processed by the batch job scope , what messages have been logged by the Logger component?
- A. 1. {amount=140}
2. {amount=102}
3. {step2amount=100}
4. {step2amount=40} - B. 1. {amount=140}
2. {amount=102}
3. {step2amount=100}
4. {step2amount=140} - C. 1. {amount=140}
2. {amount=102}
3. {step2amount=100}
4. {step2amount=140} - D. 1. {amount=140}
2. {amount=102}
3. {step2amount=100}
Answer: B
Explanation:
5. {step2amount=102}
Explanation:
Lets understand this solution step by step.
1) Batch Step (Less than 50)
Accept expression for this batch step is less than 50. Hence elements which will go in this batch step are amount value 40 and 2. Hence output of logger in first batch step is
{amount=140}
{amount=102}
2) Batch Step (Greater than 20)
Accept condition for this batch step is greater than 20. Note that input amount values for this batch step are 100 , 140 and 102 (last two values have been updated in batch step less than 50) As all values satisfy this condition out put of second logger is
{step2amount=100}
{step2amount=140}
{step2amount=102}
Hence correct answer to this question is
{amount=140}
{amount=102}
{step2amount=100}
{step2amount=140}
{step2amount=102}
NEW QUESTION # 43
What should this endpoint return considering the API is build using standard practices?
http://dev.acme.com/api/patients?year=2021
- A. Patient with id 2021
- B. Patients from year 2021
- C. All patients
- D. No patients
Answer: B
Explanation:
Correct answer is Patients from year 2021.
The thing to note here is that year is not a query parameter and not the uri parameter. Hence it will filter all the patients and return the ones for whom year is 2021
NEW QUESTION # 44
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 StudentExample.raml
- B. examples: !include StudentExample.raml
- C. examples: #import examples/StudentExample.raml
- D. examples: !include examples/StudentExample.raml
Answer: D
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 # 45
Refer to the exhibit.
The default scope in choice router recursively calls the color flow.
A web client sends a PUT request to the HTTP listener with payload Blue.
What response is returned to the web client?
- A. ["Blue", "Red", "Blk"]
- B. A timeout error
- C. "Blk"
- D. "Green"
Answer: C
Explanation:
Sequence can be described as follows.
* When web client sends the request , it sends payload as Blue (mentioned in question)
* In first iteration this will go to default choice , which sets payload to Red
* Via default route , flow will call itself with payload as Red
* In second iteration , as payload is Red , it will go to first route in choice router which will set payload to Blk and second iteration will end returning back payload as Blk to first iteration.
* This Blk will be again set to payload and first iteration will end returning back response as Blk
NEW QUESTION # 46
......
About Certificate
The MCD - Level 1 certification is for those having basic skills in developing solutions using MuleSoft technologies. It is set to confirm candidates' adroitness in executing related projects, which includes creating, testing, debugging, positioning, and maintaining APIs together with integrations. To perform these tasks with adeptness, specialists will receive guidance in addition to supervision from those with more experience than them.
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