A Digital Developer needs to add a new form to the shopping cart page to allow customers to enter their rewards pass ID. There is already an existing Cart.js controller that handles processing of the other cart forms. In addition, a form field node is in the form XML and the necessary form input is present in the ISML template.
The code below is the submit button for the ISML markup.

What additional steps must occur before the Digital Developer can begin writing the processing code for this request?

A Digital Developer has been given a requirement to add fault tolerance to an existing web service integration that uses Service Framework. Administrators at Universal Containers need to be able to configure the timeout and rate limiting.
Which approach should the Developer use to implement the requirement?

A developer is implementing new Page Designer content on a merchant's Storefront and adds the line below to

What does this achieve?

A client uses tax tables in Business Manager to calculate tax. They recently started shipping to a new country, Italy, and the tax is not being calculated correctly on the Storefront.
What is the likely problem?

When inspecting the weekly service status report for a critical internally hosted web service used in the application, a developer notices that there are too many instances of unavailability.
Which two solutions can reduce the unavailability of the service?
Choose 2 answers.