A client sells its products in North America, Europe, and Asia, and has a B2C Commerce Site for each of these markets. The client receives three area-specific snippets of analytics code by a third-party provider to insert in the sites.
How should the developer configure an instance to allow the merchant to independently insert and update these snippets?

A developer is remotely fetching the reviews for a product.
Assume that it's an HTTP GET request and caching needs to be implemented, what consideration should the developer keep in mind for building the caching strategy?

The Client identifies that a segment of customers need to see some products on the site that other customers should not be able to access. All products are maintained within one catalog but in separate categories. A custom attribute will be used on the Profile system object to identify customers that belong to this special segment. A customer group will be made that is qualified for by this Profile custom attribute. The storefront will be customized to include navigation to relevant categories for this customer group.
Unfortunately during technical review the Client points out that the business teams have raised a concern with maintenance and want to use a shared navigation within the catalog and not use separate categories.
Which item should the Architect suggest to efficiently fulfil this new requirement while maintaining scalability?

A Storefront is designed so that multiple pages share a common header and footer layout.
Which ISML tag should a developer use on the templates for these pages to avoid code repetition in the most effective way?

During the testing of the login form, QA finds out that the first time the user can log in, but every other login attempt from another computer leads to the homepage and the basket being emptied. Developers tried to debug the issue, but when they add a breakpoint to the login action, it is not hit by the debugger.
What should the Architect recommend developers to check?