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NEW QUESTION 29
What is true about the technology architecture of Anypoint VPCs?
- A. VPC peering can be used to link the underlying AWS VPC to an on-premises (non AWS) private network
- B. Traffic between Mule applications deployed to an Anypoint VPC and on-premises systems can stay within a private network
- C. The private IP address range of an Anypoint VPC is automatically chosen by CloudHub
- D. Each CloudHub environment requires a separate Anypoint VPC
Answer: B
Explanation:
Correct answer: Traffic between Mule applications deployed to an Anypoint VPC and on-premises systems can stay within a private network
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>> The private IP address range of an Anypoint VPC is NOT automatically chosen by CloudHub. It is chosen by us at the time of creating VPC using thr CIDR blocks.
CIDR Block: The size of the Anypoint VPC in Classless Inter-Domain Routing (CIDR) notation.
For example, if you set it to 10.111.0.0/24, the Anypoint VPC is granted 256 IP addresses from 10.111.0.0 to 10.111.0.255.
Ideally, the CIDR Blocks you choose for the Anypoint VPC come from a private IP space, and should not overlap with any other Anypoint VPC's CIDR Blocks, or any CIDR Blocks in use in your corporate network.
that each CloudHub environment requires a separate Anypoint VPC. Once an Anypoint VPC is created, we can choose a same VPC by multiple environments. However, it is generally a best and recommended practice to always have seperate Anypoint VPCs for Non-Prod and Prod environments.
>> We use Anypoint VPN to link the underlying AWS VPC to an on-premises (non AWS) private network. NOT VPC Peering.
Reference:
Only true statement in the given choices is that the traffic between Mule applications deployed to an Anypoint VPC and on-premises systems can stay within a private network.
https://docs.mulesoft.com/runtime-manager/vpc-connectivity-methods-concept
NEW QUESTION 30
Refer to the exhibit.
What is the best way to decompose one end-to-end business process into a collaboration of Experience, Process, and of System APIs?
- A. Use a Process API to orchestrate calls to multiple System APIs, but NOT to other Process APIs.
- B. Allow System APIs to return data that is NOT currently required by the identified Process or Experience APIs.
- C. Always use a tiered approach by creating exactly one API for each of the 3 layers (Experience, Process and System APIs).
- D. Handle customizations for the end-user application at the Process API level rather than the Experience API level.
Answer: C
NEW QUESTION 31
What API policy would be LEAST LIKELY used when designing an Experience API that is intended to work with a consumer mobile phone or tablet application?
- A. IPwhitellst
- B. Client ID enforcement
- C. OAuth 2.0 access token enforcement
- D. JSON threat protection
Answer: A
Explanation:
Correct answer: IP whitelist
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>> OAuth 2.0 access token and Client ID enforcement policies are VERY common to apply on Experience APIs as API consumers need to register and access the APIs using one of these mechanisms
>> JSON threat protection is also VERY common policy to apply on Experience APIs to prevent bad or suspicious payloads hitting the API implementations.
>> IP whitelisting policy is usually very common in Process and System APIs to only whitelist the IP range inside the local VPC. But also applied occassionally on some experience APIs where the End User/ API Consumers are FIXED.
>> When we know the API consumers upfront who are going to access certain Experience APIs, then we can request for static IPs from such consumers and whitelist them to prevent anyone else hitting the API.
However, the experience API given in the question/ scenario is intended to work with a consumer mobile phone or tablet application. Which means, there is no way we can know all possible IPs that are to be whitelisted as mobile phones and tablets can so many in number and any device in the city/state/country/globe.
So, It is very LEAST LIKELY to apply IP Whitelisting on such Experience APIs whose consumers are typically Mobile Phones or Tablets.
NEW QUESTION 32
An API implementation is deployed on a single worker on CloudHub and invoked by external API clients (outside of CloudHub). How can an alert be set up that is guaranteed to trigger AS SOON AS that API implementation stops responding to API invocations?
- A. Handle API invocation exceptions within the calling API client and raise an alert from that API client when the API Is unavailable
- B. Configure a "worker not responding" alert in Anypoint Runtime Manager
- C. Implement a heartbeat/health check within the API and invoke it from outside the Anypoint Platform and alert when the heartbeat does not respond
- D. Create an alert for when the API receives no requests within a specified time period
Answer: D
NEW QUESTION 33
What best describes the Fully Qualified Domain Names (FQDNs), also known as DNS entries, created when a Mule application is deployed to the CloudHub Shared Worker Cloud?
- A. The FQDNs are determined by both the application name and the Anypoint Platform organization
- B. A fixed number of FQDNs are created, IRRESPECTIVE of the environment and VPC design
- C. The FQDNs are determined by the application name chosen, IRRESPECTIVE of the region
- D. The FQDNs are determined by the application name, but can be modified by an administrator after deployment
Answer: C
NEW QUESTION 34
An organization has implemented a Customer Address API to retrieve customer address information. This API has been deployed to multiple environments and has been configured to enforce client IDs everywhere.
A developer is writing a client application to allow a user to update their address. The developer has found the Customer Address API in Anypoint Exchange and wants to use it in their client application.
What step of gaining access to the API can be performed automatically by Anypoint Platform?
- A. Approve the client application request for the chosen SLA tier
- B. Request access to the appropriate API Instances deployed to multiple environments using the client application's credentials
- C. Modify the client application to call the API using the client application's credentials
- D. Create a new application in Anypoint Exchange for requesting access to the API
Answer: B
NEW QUESTION 35
The implementation of a Process API must change.
What is a valid approach that minimizes the impact of this change on API clients?
- A. Implement the Process API changes in a new API implementation, and have the old API implementation return an HTTP status code 301 - Moved Permanently to inform API clients they should be calling the new API implementation
- B. Update the RAML definition of the current Process API and notify API client developers by sending them links to the updated RAML definition
- C. Implement required changes to the Process API implementation so that whenever possible, the Process API's RAML definition remains unchanged
- D. Postpone changes until API consumers acknowledge they are ready to migrate to a new Process API or API version
Answer: A
NEW QUESTION 36
What is typically NOT a function of the APIs created within the framework called API-led connectivity?
- A. They provide an additional layer of resilience on top of the underlying backend system, thereby insulating clients from extended failure of these systems.
- B. They allow for innovation at the user Interface level by consuming the underlying assets without being aware of how data Is being extracted from backend systems.
- C. They can compose data from various sources and combine them with orchestration logic to create higher level value.
- D. They reduce the dependency on the underlying backend systems by helping unlock data from backend systems In a reusable and consumable way.
Answer: A
Explanation:
Correct answer: They provide an additional layer of resilience on top of the underlying backend system, thereby insulating clients from extended failure of these systems.
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In API-led connectivity,
>> Experience APIs - allow for innovation at the user interface level by consuming the underlying assets without being aware of how data is being extracted from backend systems.
>> Process APIs - compose data from various sources and combine them with orchestration logic to create higher level value
>> System APIs - reduce the dependency on the underlying backend systems by helping unlock data from backend systems in a reusable and consumable way.
However, they NEVER promise that they provide an additional layer of resilience on top of the underlying backend system, thereby insulating clients from extended failure of these systems.
https://dzone.com/articles/api-led-connectivity-with-mule
NEW QUESTION 37
When must an API implementation be deployed to an Anypoint VPC?
- A. When the API implementation must be accessible within a subnet of a restricted customer-hosted network that does not allow public access
- B. When the API Implementation must invoke publicly exposed services that are deployed outside of CloudHub in a customer- managed AWS instance
- C. When the API implementation must be deployed to a production AWS VPC using the Mule Maven plugin
- D. When the API Implementation must write to a persistent Object Store
Answer: A
NEW QUESTION 38
A retail company is using an Order API to accept new orders. The Order API uses a JMS queue to submit orders to a backend order management service. The normal load for orders is being handled using two (2) CloudHub workers, each configured with 0.2 vCore. The CPU load of each CloudHub worker normally runs well below 70%. However, several times during the year the Order API gets four times (4x) the average number of orders. This causes the CloudHub worker CPU load to exceed 90% and the order submission time to exceed 30 seconds. The cause, however, is NOT the backend order management service, which still responds fast enough to meet the response SLA for the Order API. What is the MOST resource-efficient way to configure the Mule application's CloudHub deployment to help the company cope with this performance challenge?
- A. Permanently increase the number of CloudHub workers by four times (4x) to eight (8) CloudHub workers
- B. Permanently increase the size of each of the two (2) CloudHub workers by at least four times (4x) to one (1) vCore
- C. Use a horizontal CloudHub autoscaling policy that triggers on CPU utilization greater than 70%
- D. Use a vertical CloudHub autoscaling policy that triggers on CPU utilization greater than 70%
Answer: C
Explanation:
Correct answer: Use a horizontal CloudHub autoscaling policy that triggers on CPU utilization greater than 70%
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The scenario in the question is very clearly stating that the usual traffic in the year is pretty well handled by the existing worker configuration with CPU running well below 70%. The problem occurs only "sometimes" occasionally when there is spike in the number of orders coming in.
So, based on above, We neither need to permanently increase the size of each worker nor need to permanently increase the number of workers. This is unnecessary as other than those "occasional" times the resources are idle and wasted.
We have two options left now. Either to use horizontal Cloudhub autoscaling policy to automatically increase the number of workers or to use vertical Cloudhub autoscaling policy to automatically increase the vCore size of each worker.
Here, we need to take two things into consideration:
1. CPU
2. Order Submission Rate to JMS Queue
>> From CPU perspective, both the options (horizontal and vertical scaling) solves the issue. Both helps to bring down the usage below 90%.
>> However, If we go with Vertical Scaling, then from Order Submission Rate perspective, as the application is still being load balanced with two workers only, there may not be much improvement in the incoming request processing rate and order submission rate to JMS queue. The throughput would be same as before. Only CPU utilization comes down.
>> But, if we go with Horizontal Scaling, it will spawn new workers and adds extra hand to increase the throughput as more workers are being load balanced now. This way we can address both CPU and Order Submission rate.
Hence, Horizontal CloudHub Autoscaling policy is the right and best answer.
NEW QUESTION 39
What is a best practice when building System APIs?
- A. Expose to API clients all technical details of the API implementation's interaction wifch the backend system
- B. Model all API resources and methods to closely mimic the operations of the backend system
- C. Build an Enterprise Data Model (Canonical Data Model) for each backend system and apply it to System APIs
- D. Document the API using an easily consumable asset like a RAML definition
Answer: B
Explanation:
Correct answer: Model all API resources and methods to closely mimic the operations of the backend system.
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>> There are NO fixed and straight best practices while opting data models for APIs. They are completly contextual and depends on number of factors. Based upon those factors, an enterprise can choose if they have to go with Enterprise Canonical Data Model or Bounded Context Model etc.
>> One should NEVER expose the technical details of API implementation to their API clients. Only the API interface/ RAML is exposed to API clients.
>> It is true that the RAML definitions of APIs should be as detailed as possible and should reflect most of the documentation. However, just that is NOT enough to call your API as best documented API. There should be even more documentation on Anypoint Exchange with API Notebooks etc. to make and create a developer friendly API and repository..
>> The best practice always when creating System APIs is to create their API interfaces by modeling their resources and methods to closely reflect the operations and functionalities of that backend system.
NEW QUESTION 40
What API policy would LEAST likely be applied to a Process API?
- A. Client ID enforcement
- B. Custom circuit breaker
- C. Rate limiting
- D. JSON threat protection
Answer: D
NEW QUESTION 41
An organization makes a strategic decision to move towards an IT operating model that emphasizes consumption of reusable IT assets using modern APIs (as defined by MuleSoft).
What best describes each modern API in relation to this new IT operating model?
- A. Each modern API has its own software development lifecycle, which reduces the need for documentation and automation
- B. Each modern API must be REST and HTTP based
- C. Each modern API must be easy to consume, so should avoid complex authentication mechanisms such as SAML or JWT D
- D. Each modem API must be treated like a product and designed for a particular target audience (for instance, mobile app developers)
Answer: D
Explanation:
Correct Answers:
1. Each modern API must be treated like a product and designed for a particular target audience (for instance mobile app developers)
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NEW QUESTION 42
What do the API invocation metrics provided by Anypoint Platform provide?
- A. Proactive identification of likely future policy violations that exceed a given threat threshold
- B. ROI metrics from APIs that can be directly shared with business users
- C. Data on past API invocations to help identify anomalies and usage patterns across various APIs
- D. Measurements of the effectiveness of the application network based on the level of reuse
Answer: D
NEW QUESTION 43
An organization uses various cloud-based SaaS systems and multiple on-premises systems. The on-premises systems are an important part of the organization's application network and can only be accessed from within the organization's intranet.
What is the best way to configure and use Anypoint Platform to support integrations with both the cloud-based SaaS systems and on-premises systems?
A) Use CloudHub-deployed Mule runtimes in an Anypoint VPC managed by Anypoint Platform Private Cloud Edition control plane
B) Use CloudHub-deployed Mule runtimes in the shared worker cloud managed by the MuleSoft-hosted Anypoint Platform control plane
C) Use an on-premises installation of Mule runtimes that are completely isolated with NO external network access, managed by the Anypoint Platform Private Cloud Edition control plane
D) Use a combination of Cloud Hub-deployed and manually provisioned on-premises Mule runtimes managed by the MuleSoft-hosted Anypoint Platform control plane
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: C
NEW QUESTION 44
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