A web client sends a request to http;//localhost:8081?dept=sales. What is the correct DataWeave expression to access the value of dept?
A.
attributes.queryParams.dept
B.
attributes.dept
C.
message.queryParams.dept
D.
vars.dept
attributes.queryParams.dept
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.
Anon-empty Java object
The original JSON request body
Refer to the exhibit. 
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Option D
What are the latest specification of RAML available?
A. 1.2
B. 1
C. 0.8
D. 2
Explanation:
The current version of the RAML specification is 1.0
You can check RAML version in RAML definition by referring to first comment. See
highlighted part in below image.
What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?
A. Data layer
B. Process layer
C. Experience layer
D. System layer
Explanation:
Correct answer is System layer
System APIs provide a means for insulating the data consumers from the complexity or
changes to the underlying backend systems.
MuleSoft recommends three-layered approach to API-led connectivity, highlighting the
three layers:
* System APIs
* Process APIs
* Experience APIs
System APIs are the core systems of record underlying core systems of record (e.g. ERPs,
key customer and billing systems, databases, etc.). Process APIs allow you to define a
common process which the organization can share, and these APIs perform specific
functions, provide access to non-central data, and may be built by either Central IT or Line
of Business IT. And finally, the Experience APIs are the means by which data can be
reconfigured so that it is most easily consumed by its intended audience, all from a
common data source.
The three-layered structure allows for a seamless flow of data from systems of record to
new experiences, and allows for reusability of assets rather than point to point connections.
This approach provides a distributed and tailored approach to architecture, greater
flexibility through loose coupling, and deeper operational visibility into what is being built.
Refer to the exhibits. A web client sends a POST request to theHTTP Listener and the
Validation component in the Try scope throws an error. 
What respo
nse message is returned to the web client?
A.
Validation Error
B.
"END"
C.
"ERROR1"
D.
''ERROR2"
E.
Validation Error
F.
"END"
G.
"ERROR1"
H.
''ERROR2
''ERROR2"
What DataWeave expression transforms the array a to the XML output?
A. 1.1. trains:
2.2. {(
3.3. a map ((engId, index) ->
4.4. train: {
5.5. TrainNumber: engId
6.6.
7.7. }
8.8. )
9.9. )}
B. 1.1. trains:
2.2. a map ((engId, index) ->
3.3. train: {
4.4. TrainNumber: engId
5.5.
6.6. }
7.7. )
C. 1.1. {(
2.2. trains:
3.3. a map ((engId, index) ->
4.4. train: {
5.5. TrainNumber: engId
6.6.
7.7. }
8.8. )
9.)}
D. 1.1. {
2.2. trains:
3.3. a map ((engId, index) ->
4.4. train: {
5.5. TrainNumber: engId
6.6.
7.7. }
8.8. )
9.}
Explanation:
For such questions always look for Syntax:
I call it "Wrap the Map" trains:
{(
When mapping array elements (JSON or JAVA) to XML, wrap the map operations in {(..)}
-{ } are defining the object
-( ) are transforming each element in the array as a key/value pair
According to Semantic Versioning, which version would you change for incompatible API changes?
A. No change
B. MINOR
C. MAJOR
D. PATCH
Explanation:
Correct answer is MAJOR
MAJOR version when you make incompatible API changes, MINOR version when you add
functionality in a backwards compatible manner, and PATCH version when you make
backwards compatible bug fixes.
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