[Q14-Q33] MCIA-Level-1-Maintenance練習MuleSoft高合格率回答あなたを試験は高確率で合格させます！[2023]

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MCIA-Level-1-Maintenance練習MuleSoft高合格率回答あなたを試験は高確率で合格させます！[2023]

最高の方法からパスMuleSoft Certified ArchitectのMCIA-Level-1-Maintenance試験合格させます

MCIA-Level-1-Mantenance試験に合格した専門家は、Mulesoft統合の専門家として認識されており、複雑な統合ソリューションの実装を検討している組織から非常に求められています。これらの専門家は、最新のエンタープライズシステムのニーズを満たすスケーラブルで信頼性の高い安全な統合を設計および実装することができます。 MCIA-LEVEL-1-MANTENANTION試験は、MCIA認定を維持し、Mulesoft統合の分野でキャリアを促進しようとする専門家にとって不可欠なステップです。

14、When the mule application using VM is deployed to a customer-hosted cluster or multiple cloudhub workers, how are messages consumed by the Mule engine?

in non-deterministic way

by starting an XA transaction for each new message

in a deterministic way

the primary only in order to avoid duplicate processing

15、In Anypoint Platform, a company wants to configure multiple identity providers (IdPs) for multiple lines of business (LOBs). Multiple business groups, teams, and environments have been defined for these LOBs.
What Anypoint Platform feature can use multiple IdPs across the company’s business groups, teams, and environments?

MuleSoft-hosted (CloudHub) dedicated load balancers

Client (application) management

Virtual private clouds

Permissions

16、What is maximum vCores can be allocated to application deployed to CloudHub?

1 vCores

2 vCores

4 vCores

16 vCores

17、An organization has implemented the cluster with two customer hosted Mule runtimes is hosting an application.
This application has a flow with a JMS listener configured to consume messages from a queue destination. As an integration architect can you advise which JMS listener configuration must be used to receive messages in all the nodes of the cluster?

Use the parameter primaryNodeOnly= “false” on the JMS listener

Use the parameter primaryNodeOnly= “false” on the JMS listener with a shared subscription

Use the parameter primaryNodeOnly= “true” on the JMS listener with a non*shared subscription

Use the parameter primaryNodeOnly= “true” on the JMS listener

18、One of the backend systems involved by the API implementation enforces rate limits on the number of request a particle client can make.
Both the back-end system and API implementation are deployed to several non-production environments including the staging environment and to a particular production environment. Rate limiting of the back-end system applies to all non-production environments.
The production environment however does not have any rate limiting.
What is the cost-effective approach to conduct performance test of the API implementation in the non-production staging environment?

Including logic within the API implementation that bypasses in locations of the back-end system in the staging environment and invoke a Mocking service that replicates typical back-end system responses Then conduct performance test using this API implementation

Use MUnit to simulate standard responses from the back-end system.
Then conduct performance test to identify other bottlenecks in the system

Create a Mocking service that replicates the back-end system’s
production performance characteristics
Then configure the API implementation to use the mocking
service and conduct the performance test

Conduct scaled-down performance tests in the staging environment against rate-limiting back-end system. Then upscale performance results to full production scale

19、An organization has chosen Mulesoft for their integration and API platform.
According to the Mulesoft catalyst framework, what would an integration architect do to create achievement goals as part of their business outcomes?

Measure the impact of the centre for enablement

build and publish foundational assets

agree upon KPI’s and help develop and overall success plan

evangelize API’s

20、As a part of design , Mule application is required call the Google Maps API to perform a distance computation. The application is deployed to cloudhub.
At the minimum what should be configured in the TLS context of the HTTP request configuration to meet these requirements?

The configuration is built-in and nothing extra is required for the TLS context

Request a private key from Google and create a PKCS12 file with it and add it in keyStore as a part of TLS context

Download the Google public certificate from a browser, generate JKS file from it and add it in key store as a part of TLS context

Download the Google public certificate from a browser, generate a JKS file from it and add it in Truststore as part of the TLS context

21、A new upstream API Is being designed to offer an SLA of 500 ms median and 800 ms maximum (99th percentile) response time. The corresponding API implementation needs to sequentially invoke 3 downstream APIs of very similar complexity. The first of these downstream APIs offers the following SLA for its response time: median: 100 ms, 80th percentile: 500 ms, 95th percentile: 1000 ms. If possible, how can a timeout be set in the upstream API for the invocation of the first downstream API to meet the new upstream API’s desired SLA?

Set a timeout of 100 ms; that leaves 400 ms for the other two downstream APIs to complete

Do not set a timeout; the Invocation of this API Is mandatory and so we must wait until it responds

Set a timeout of 50 ms; this times out more invocations of that API but gives additional room for retries

No timeout is possible to meet the upstream API’s desired SLA; a different SLA must be negotiated with the first downstream API or invoke an alternative API

Explanation
Before we answer this question , we need to understand what median (50th percentile) and 80th percentile means. If the 50th percentile (median) of a response time is 500ms that means that 50% of my transactions are either as fast or faster than 500ms.
If the 90th percentile of the same transaction is at 1000ms it means that 90% are as fast or faster and only 10% are slower. Now as per upstream SLA , 99th percentile is 800 ms which means 99% of the incoming requests should have response time less than or equal to 800 ms. But as per one of the backend API , their 95th percentile is 1000 ms which means that backend API will take 1000 ms or less than that for 95% of. requests.
As there are three API invocation from upstream API , we can not conclude a timeout that can be set to meet the desired SLA as backend SLA’s do not support it.
Let see why other answers are not correct.
1) Do not set a timeout –> This can potentially violate SLA’s of upstream API
2) Set a timeout of 100 ms; —> This will not work as backend API has 100 ms as median meaning only 50% requests will be answered in this time and we will get timeout for 50% of the requests. Important thing to note here is, All APIs need to be executed sequentially, so if you get timeout in first API, there is no use of going to second and third API. As a service provider you wouldn’t want to keep 50% of your consumers dissatisfied. So not the best option to go with.
*To quote an example: Let’s assume you have built an API to update customer contact details.
– First API is fetching customer number based on login credentials
– Second API is fetching Info in 1 table and returning unique key
– Third API, using unique key provided in second API as primary key, updating remaining details
* Now consider, if API times out in first API and can’t fetch customer number, in this case, it’s useless to call API 2 and 3 and that is why question mentions specifically that all APIs need to be executed sequentially.
3) Set a timeout of 50 ms –> Again not possible due to the same reason as above Hence correct answer is No timeout is possible to meet the upstream API’s desired SLA; a different SLA must be negotiated with the first downstream API or invoke an alternative API

22、As a part of business requirement , old CRM system needs to be integrated using Mule application. CRM system is capable of exchanging data only via SOAP/HTTP protocol. As an integration architect who follows API led approach , what is the the below step you will perform so that you can share document with CRM team?

Create RAML specification using Design Center

Create SOAP API specification using Design Center

Create WSDL specification using text editor

Create WSDL specification using Design Center

23、A Mule application is synchronizing customer data between two different database systems.
What is the main benefit of using eXtended Architecture (XA) transactions over local transactions to synchronize these two different database systems?

An XA transaction synchronizes the database systems with the least amount of Mule configuration or coding

An XA transaction handles the largest number of requests in the shortest time

An XA transaction automatically rolls back operations against both database systems if any operation falls

An XA transaction writes to both database systems as fast as possible

24、An organization has strict unit test requirement that mandate every mule application must have an MUnit test suit with a test case defined for each flow and a minimum test coverage of 80%.
A developer is building Munit test suit for a newly developed mule application that sends API request toan external rest API.
What is the effective approach for successfully executing the Munit tests of this new application while still achieving the required test coverage for the Munit tests?

Invoke the external endpoint of the rest API from the mule floors

Mark the rest API invocations in the Munits and then call the mocking service flow that simulates standard responses from the REST API

Mock the rest API invocation in the Munits and return a mock response for those invocations

Create a mocking service flow to simulate standard responses from the rest API and then configure the mule flows to call the marking service flow

25、A leading e-commerce giant will use Mulesoft API’s on runtime fabric (RTF) to process customer orders.
Some customer’s sensitive information such as credit card information is also there as a part of a API payload.
What approach minimizes the risk of matching sensitive data to the original and can convert back to the original value whenever and wherever required?

Apply masking to hide the sensitive information and then use API

manager to detokenize the masking format to return the original value

create a tokenization format and apply a tokenization policy to the API Gateway

Used both masking and tokenization

Apply a field level encryption policy in the API Gateway

26、A rale limiting policy has been applied to a soap VI.2 API published in Clondhub. The API implementation catches errors in a global error handler on error propagate in the main flow for HTTP: RETRY_EXHAUSTED with HTTP status set to 429 and any with the HTTP status set to 500.
What is the expected H1TP status when the client exceeds the quota of the API calls?

HTTP status 429 as defined in the HTTP:RETRY EXHAUSTED error handler in the API B. HTTP status 500 as defined in the ANY error handler in the API since an API:RETRY_EXHAUSTED will be generated

HTTP status 401 unauthorized for policy violation

HTTP status 400 from the rate-limiting policy violation since the call does not reach the back-end

27、An insurance company has an existing API which is currently used by customers. API is deployed to customer hosted Mule runtime cluster. The load balancer that is used to access any APIs on the mule cluster is only configured to point to applications hosted on the server at port 443.
Mule application team of a company attempted to deploy a second API using port 443 but the application will not start and checking logs shows an error indicating the address is already in use.
Which steps must the organization take to resolve this error and allow customers to access both the API’s?

Change the base path of the HTTP listener configuration in the second API to a different one from the first API

Set HTTP listener configuration in both API’s to allow for connections from multiple ports

Move the HTTP listener configurations from the API’s and package them in a mule domain project using port 443

Set the HTTP listener of the second API to use different port than the one used in the first API

28、Mule application is deployed to Customer Hosted Runtime. Asynchronous logging was implemented to improved throughput of the system. But it was observed over the period of time that few of the important exception log messages which were used to rollback transactions are not working as expected causing huge loss to the Organization. Organization wants to avoid these losses. Application also has constraints due to which they cant compromise on throughput much. What is the possible option in this case?

Logging needs to be changed from asynchronous to synchronous

External log appender needs to be used in this case

Persistent memory storage should be used in such scenarios

Mixed configuration of asynchronous or synchronous loggers should be used to log exceptions via synchronous way

29、An organization is designing Mule application which connects to a legacy backend. It has been reported that backend services are not highly available and experience downtime quite often. As an integration architect which of the below approach you would propose to achieve high reliability goals?

Alerts can be configured in Mule runtime so that backend team can be communicated when services are down

Until Successful scope can be implemented while calling backend API’s

On Error Continue scope to be used to call in case of error again

Create a batch job with all requests being sent to backend using that job as per the availability of backend API’s

30、A system API EmployeeSAPI is used to fetch employee’s data from an underlying SQL database.
The architect must design a caching strategy to query the database only when there is an update to the employees stable or else return a cached response in order to minimize the number of redundant transactions being handled by the database.
What must the architect do to achieve the caching objective?

Use an On Table Row on employees table and call invalidate cache
Use an object store caching strategy and expiration interval to empty

Use a Scheduler with a fixed frequency every hour triggering an invalidate cache flow Use an object store caching strategy and expiration interval to empty

Use a Scheduler with a fixed frequency every hour triggering an invalidate cache flow Use an object store caching strategy and set expiration interval to 1-hour

Use an on table rule on employees table call invalidate cache and said new employees data to cache Use an object store caching strategy and set expiration interval to 1-hour

31、An organization has deployed runtime fabric on an eight note cluster with performance profile. An API uses and non persistent object store for maintaining some of its state data. What will be the impact to the stale data if server crashes?

State data is preserved

State data is rolled back to a previously saved version

State data is lost

State data is preserved as long as more than one more is unaffected by the crash

32、A company is designing a mule application to consume batch data from a partner’s ftps server The data files have been compressed and then digitally signed using PGP.
What inputs are required for the application to securely consumed these files?

ATLS context Key Store requiring the private key and certificate for the company PGP public key of partner PGP private key for the company

ATLS context first store containing a public certificate for partner ftps server and the PGP public key of the partner TLS contact Key Store containing the FTP credentials

TLS context trust or containing a public certificate for the ftps server The FTP username and password The PGP public key of the partner

The PGP public key of the partner
The PGP private key for the company The FTP username and password

33、A travel company wants to publish a well-defined booking service API to be shared with its business partners.
These business partners have agreed to ONLY consume SOAP services and they want to get the service contracts in an easily consumable way before they start any development. The travel company will publish the initial design documents to Anypoint Exchange, then share those documents with the business partners. When using an API-led approach, what is the first design document the travel company should deliver to its business partners?

Create a WSDL specification using any XML editor

Create a RAML API specification using any text editor

Create an OAS API specification in Design Center

Create a SOAP API specification in Design Center

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[Q14-Q33] MCIA-Level-1-Maintenance練習MuleSoft高合格率回答あなたを試験は高確率で合格させます！[2023]

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