Question 1

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?

Options :

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

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

C : 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

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

Answer: B

Question 2

The Line of Business (LoB) of an eCommerce company is requesting a process that sends automatednotifications via email every time a new order is processed through thecustomer's mobile application or through the internal company's web application. In the future, multiplenotification channels may be added: for example, text messages andpush notifications.What is the most effective API-led connectivity approach for the scenario described above?

Options :

A : Create one Experience API for the web application and one for the mobile application.Create a Process API to orchestrate and retrieve the email template from = database.Create a System API that sends the email using the Anypoint Connector for Email.Create one Experience API for the web application and one for the mobile application.Create a Process API to orchestrate and retrieve the email template from = database.Create a System API that sends the email using the Anypoint Connector for Email.

B : Create one Experience API for the web application and one for the mobile application,Create a Process API to orchestrate, retrieve the email template from a database, and send the emailusing the Anypoint Connector for Email.

C : Create Experience APIs for both the web application and mobile application.Create a Process API ta orchestrate, retrieve the email template from e database, and send the emailusing the Anypoint Connector for Email.

D : Create Experience APIs for both the web application and mobile application.(Create 3 Process API to orchestrate and retrieve the email template from 2 databese. Create a System API that sends the email using the Anypoint Connector for Email.

Answer: A

Question 3

A large lending company has developed an API to unlock data from a database server and web server. TheAPI has been deployed to Anypoint Virtual Private Cloud(VPC) on CloudHub 1.0.The database server and web server are in the customer's secure network and are not accessible through thepublic internet. The database server is in the customer's AWSVPC, whereas the web server is in the customer's on-premises corporate data center.How can access be enabled for the API to connect with the database server and the web server?

Options :

A : Set up VPC peering with AWS VPC and a VPN tunnel to the customer-s on-premises corporate data center

B : Set up VPC peering with AWS VPC and the customer-s on-premises corporate data center

C : Setup a transit gateway to the customer-s on-premises corporate data center through AWS VPC

D : Set up VPC peering with the customer-s on-premises corporate data center and a VPN tunnel to AWS VPC

Answer: A

Question 4

A system API has a guaranteed SLA of 100 ms per request. The system API is deployed to a primary environment as well as to a disaster recovery (DR) environment, with different DNS names in each environment. An upstream process API invokes the system API and the main goal of this process API is to respond to client requests in the least possible time. In what order should the system APIs be invoked, and what changes should be made in order to speed up the response time for requests from the process API?

Options :

A : In parallel, invoke the system API deployed to the primary environment and the system API deployed to the DR environment, and ONLY use the first response

B : In parallel, invoke the system API deployed to the primary environment and the system API deployed to the DR environment using a scatter-gather configured with a timeout, and then merge the responses

C : Invoke the system API deployed to the primary environment, and if it fails, invoke the system API deployed to the DR environment

D : Invoke ONLY the system API deployed to the primary environment, and add timeout and retry logic to avoid intermittent failures

Answer: A

Question 5

Say, there is a legacy CRM system called CRM-Z which is offering below functions: 1. Customer creation 2. Amend details of an existing customer 3. Retrieve details of a customer 4. Suspend a customer

Options :

A : Implement a system API named customerManagement which has all the functionalities wrapped in it as various operations/resources

B : Implement different system APIs named createCustomer, amendCustomer, retrieveCustomer and suspendCustomer as they are modular and has seperation of concerns

C : Implement different system APIs named createCustomerInCRMZ, amendCustomerInCRMZ, retrieveCustomerFromCRMZ and suspendCustomerInCRMZ as they are modular and has seperation of concerns

Answer: B

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