A company that is a leading provider of training delivers courses to students globally. The company decided to use customer community in order to allow studer to log in to the community, register for courses and pay course fees. The company has a payment gateway that takes more than 30 seconds to process the payn transaction. Students would like to get the payment result in real-time so in case an error happens, the students can retry the payment process.
What is the recommended integration approach to process payments based on this requirement?

A customer imports data from an external system into Salesforce using Bulk API. These jobs have batch sizes of 2000 and are run in parallel mode. The batc fails frequently with the error "Max CPU time exceeded". A smaller batch size will fix this error.
Which two options should be considered when using a smaller batch size?
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Universal Containers (UC) is a leading provider of management training globally, UC embarked on a Salesforce transformation journey to allow students to register for courses in the Salesforce community. UC has a learning system that masters all courses and student registration.
UC requested a near real-time feed of student registration from Salesforce to the learning system. The integration architect recommends using Salesforce event.
Which API should be used for the Salesforce platform event solution?

What are two benefits of named credentials?
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Which two system constraint questions should be considered when designing an integration to send orders from Salesforce to a fulfillment system?
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