Universal Containers requires Salesforce to send order data to an ERP system that requires a system-defined username/password for authentication.
Which two integration options are recommended from a security perspective?

A company needs to be able to send data from Salesforce to a home grown system behind a corporate firewall.
The data needs to be pushed only one way and doesn't need to be sent in real time. The average volume is 2 million records per day.
What should an integration architect consider when choosing the right option in building the integration between the external system and Salesforce?

Universal Containers has a custom Salesforce UI that is used by all users to check on a container's status. This check is done via an integration to its back-end system which all users have access to. However, some users have a higher privilege access into that back-end system, which allows them to retrieve more details in the same container status check. Those users would like the same Salesforce UI to recognize their higher privilege access and display those extra details for them, but without allowing all users to see the same level of details.
What is the recommended security approach to satisfy this requirement?

Universal containers ships millions of orders per year and releases code fixes to the production org mightily.
Their corporate testing strategy requires that tests must be performed against Production data in an isolated test environment before code can be released to production.
How can Universal Containers achieve the requirement?

Universal Containers has a batch integration that runs every five minutes to load Shipment records related to existing orders that have been updated in the previous five minutes. the integration is not reporting any errors, but some Shipment records are not being loaded.
What could be the problem?