Universal Containers CUC) has multi-cloud architecture in a single org. The Sales Cloud dev team is working in a Dev Pro sandbox (DevProl) of delivering a release In three months. The business requirements from Service Cloud warrant a quicker release in four weeks, but need part of the Sales Cloud work that is completed in DevProl. The decision of using a separate Dev Pro sandbox (DevPro2) is still pending. The DevProl was upgraded to preview for next salesforce major release two weeks ago.
What should an Architect recommend?

The release will be deployed over a weekend, one week after Salesforce updates the production environment (e.g., from Winter to Spring). UC has found that a full sandbox refresh can take several days. What should the architect suggest as an optimal deployment plan?

Universal Containers (UC) has a large user base (over 300 users) and was originally implemented eight years ago by a Salesforce Systems Integration Partner. Since then, UC has made a number of changes to their Visualforce pages and Apex classes in response to customer requirements, made by a variety of Vendors and internal teams.
Which three issues would a new Technical Architect expect to see when evaluating the code in this Salesforce org? (Choose three.)

Universal Containers (UC) has a recruiting application using Metadata API version 35, and deployed it in production last year. The current Salesforce platform is running on API version 36.A new field has been introduced on the object Apex pagein API version 36. A UC developer has developed a new Apex page that contains the new field and is trying to deploy the page using the previous deployment script that uses API version 35. What will happen during the deployment?

In architect is working on a project that relies on functionality that cannot be deployed via the Metadata API.
What is the best practice for making sure these components are deployed successfully?