Question 1

An organization is deploying their new implementation of the OrderStatus System API to multiple workers in CloudHub. This API fronts the organization's on-premises Order Management System, which is accessed by the API implementation over an IPsec tunnel. What type of error typically does NOT result in a service outage of the OrderStatus System API?

Options :

A : A CloudHub worker fails with an out-of-memory exception

B : API Manager has an extended outage during the initial deployment of the API implementation

C : The AWS region goes offline with a major network failure to the relevant AWS data centers

D : The Order Management System is Inaccessible due to a network outage in the organization's on-premises data center

Answer: A

Question 2

Which of the following sequence is correct?

Options :

A : API Client implementes logic to call an API >> API Consumer requests access to API >> API Implementation routes the request to >> API

B : API Consumer requests access to API >> API Client implementes logic to call an API >> API routes the request to >> API Implementation

C : API Consumer implementes logic to call an API >> API Client requests access to API >> API Implementation routes the request to >> API

D : API Client implementes logic to call an API >> API Consumer requests access to API >> API routes the request to >> API Implementation

Answer: B

Question 3

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

Question 4

A System API is designed to retrieve data from a backend system that has scalability challenges. What API policy can best safeguard the backend system?

Options :

A : IPwhitelist

B : SLA-based rate limiting

C : Auth 2 token enforcement

D : Client ID enforcement

Answer: B

Question 5

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

Higher Test Marks with Free Online Mule-Arch-201 Exam Practice

Buying Options: