business requires automating the check and update of the phone number type classification (mobile vs. landline) for all in-coming calls delivered to their phone sales agents. The following conditions exist:
1. At peak, their call center can receive up to 100,000 calls per day.
2. The phone number type classification is a service provided by an external service API.
3. Business is flexible with timing and frequency to check and update the records (throughout the night or every 6-12 hours is sufficient).
A Remote-Call-In pattern and/or Batch Synchronization (Replication via ETL: System -> Salesforce) are determined to work with a middleware hosted on custom premise.
In order to implement these patterns and mechanisms, which component should an integration architect recommend?

Universal Containers would like to integrate Salesforce to their Accounting system. Salesforce must notify the accounting system for every new account that has been created. The security team will not allow Salesforce to integrate directly to the accounting system due to potential security issues.
Which three stages should the Architect consider to reduce the security concerns for this Integration use case?
Choose 3 answers

Universal Containers (UC) has many existing applications, including Salesforce, that their users access. UC would like to integrate these applications with Salesforce so that users can accomplish all of their tasks in one user interface.
What is the recommended solution for integrating these applications into Salesforce?

Universal Containers decided to use Salesforce Sales Cloud for their sales processes. Won Opportuinities must be sent to an external source for Order fulfillment. All lint items must also be sent, along with opportunities.
The ERP system has SOAP based web services orders. UC chose to use Apex callouts.
Which two design trade-offs must be taken into account when using Apex callouts to SOAP base web services?
Choose 2 answers

A system at Universal Containers needs to retrieve opportunity details(including line items and opportunity learn) and then update the opportunity with new information in real time, as one atomic operation.
What approach should an architect recommend that conserves API limits?