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MuleSoft Certified Integration Architect - Level 1 Questions and Answers

Question 9

Organization wants to achieve high availability goal for Mule applications in customer hosted runtime plane. Due to the complexity involved, data cannot be shared among of different instances of same Mule application. What option best suits to this requirement considering high availability is very much critical to the organization?

Options:

A.

The cluster can be configured

B.

Use third party product to implement load balancer

C.

High availability can be achieved only in CloudHub

D.

Use persistent object store

Question 10

A Mule application is synchronizing customer data between two different database systems.

What is the main benefit of using XA transaction over local transactions to synchronize these two database system?

Options:

A.

Reduce latency

B.

Increase throughput

C.

Simplifies communincation

D.

Ensure consistency

Question 11

A mule application is required to periodically process large data set from a back-end database to Salesforce CRM using batch job scope configured properly process the higher rate of records.

The application is deployed to two cloudhub workers with no persistence queues enabled.

What is the consequence if the worker crashes during records processing?

Options:

A.

Remaining records will be processed by a new replacement worker

B.

Remaining records be processed by second worker

C.

Remaining records will be left and processed

D.

All the records will be processed from scratch by the second worker leading to duplicate processing

Question 12

An auto mobile company want to share inventory updates with dealers Dl and D2 asynchronously and concurrently via queues Q1 and Q2. Dealer Dl must consume the message from the queue Q1 and dealer D2 to must consume a message from the queue Q2.

Dealer D1 has implemented a retry mechanism to reprocess the transaction in case of any errors while processing the inventers updates. Dealer D2 has not implemented any retry mechanism.

How should the dealers acknowledge the message to avoid message loss and minimize impact on the current implementation?

Options:

A.

Dealer D1 must use auto acknowledgement and dealer D2 can use manual acknowledgement and acknowledge the message after successful processing

B.

Dealer D1 can use auto acknowledgement and dealer D2 can use IMMEDIATE acknowledgement and acknowledge the message of successful processing

C.

Dealer D1 and dealer D2 must use AUTO acknowledgement and acknowledge the message after successful processing

D.

Dealer D1 can use AUTO acknowledgement and dealer D2 must use manual acknowledgement and acknowledge the message

after successful processing