Question 1

A leading bank implementing new mule API. The purpose of API to fetch the customer account balances from the backend application and display them on the online platform the online banking platform. The online banking platform will send an array of accounts to Mule API get the account balances. As a part of the processing the Mule API needs to insert the data into the database for auditing purposes and this process should not have any performance related implications on the account balance retrieval flow How should this requirement be implemented to achieve better throughput?

Options :

A : Implement the Async scope fetch the data from the backend application and to insert records in the Audit database

B : Implement a for each scope to fetch the data from the back-end application and to insert records into the Audit database

C : Implement a try-catch scope to fetch the data from the back-end application and use the Async scope to insert records into the Audit database

D : Implement parallel for each scope to fetch the data from the backend application and use Async scope to insert the records into the Audit database

Answer: C

Question 2

Additional nodes are being added to an existing customer-hosted Mule runtime cluster to improve performance. Mule applications deployed to this cluster are invoked by API clients through a load balancer. What is also required to carry out this change?

Options :

A : A new load balancer must be provisioned to allow traffic to the new nodes in a round-robin fashion

B : External monitoring tools or log aggregators must be configured to recognize the new nodes

C : API implementations using an object store must be adjusted to recognize the new nodes and persist to them

D : New firewall rules must be configured to accommodate communication between API clients and the new nodes

Answer: B

Question 3

A Mule application uses the Database connector. What condition can the Mule application automatically adjust to or recover from without needing to restart or redeploy the Mule application?

Options :

A : One of the stored procedures being called by the Mule application has been renamed

B : The database server was unavailable for four hours due to a major outage but is now fully operational again

C : The credentials for accessing the database have been updated and the previous credentials are no longer valid

D : The database server has been updated and hence the database driver library/JAR needs a minor version upgrade

Answer: B

Question 4

Customer has deployed mule applications to different customer hosted mule run times. Mule applications are managed from Anypoint platform. What needs to be configured to monitor these Mule applications from Anypoint monitoring and what sends monitoring data to Anypoint monitoring?

Options :

A : Enable monitoring of individual applications from runtime manager application settings Runtime manager agent sends monitoring data from the mule applications to Anypoint monitoring

B : Install runtime manager agent on each mule runtime Runtime manager agent since monitoring data from the mule applications to Anypoint monitoring

C : Anypoint monitoring agent on each mule runtime Anypoint monitoring agent sends monitoring data from the mule applications to Anypoint monitoring

D : By default, Anypoint monitoring agent will be installed on each Mule run time Anypoint Monitoring agent automatically sends monitoring data from the Mule applications to Anypoint monitoring

Answer: A

Question 5

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 100 ms; that leaves 400 ms for the other two downstream APIs to complete

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

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

D : 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

Answer: D