Explanation
Extracting each permission set, committing and merging to source control, and running through CI checks is the best strategy to bring the issue of failing SOQL statements to the developer's attention earlier. This way, the developers can review the changes made by the administrators, and ensure that they do not break any existing functionality or security rules. Asking administrators to only make changes to profiles instead would not solve the problem, as profiles can also affect SOQL queries. Creating a sandbox refresh strategy to ensure each sandbox is refreshed every day would not prevent the issue from happening, as the changes made by the administrators would still be propagated to the sandboxes. Advising developers to switch to SOSL queries that are more robust instead would not address the root cause of the issue, which is the lack of visibility and control over the permission sets.

Explanation
A single org strategy has the benefits of increased ability to collaborate, centralized data location, and consistent processes across the business. These factors can improve efficiency, data quality, and user adoption.
A single org strategy may not allow for tailored implementation or fewer inter-dependencies, as different business units may have different requirements and dependencies.

Explanation
This is the correct answer because having developers work in separate branches and merge their changes in a common branch for testing can reduce the risk of overwriting others' changes and ensure code quality and consistency. Having all developers work in the same branch or in the HEAD may cause conflicts and errors.
Not using source control is not a good practice and may result in data loss and lack of version control.

Explanation
DevPro1 cannot be cloned because it is on a different version from Production, as it was upgraded to preview for the next Salesforce major release two weeks ago. Therefore, the architect should recommend creating a new DevPro2, and migrating metadata from DevPro1. This way, the second work stream can work on the Service Cloud requirements in a separate sandbox, without affecting the Sales Cloud dev team. Asking the second work stream team to work on the same DevPro1 sandbox would create conflicts and dependencies between the two teams, and would not allow them to release at different times. Pushing back on the requirements because adding another work stream will bring some risks with it would not be a good option, as the business needs might be urgent and important.

Explanation
An agile team is one that improves and evolves its processes and frequently delivers value to the end users.
This is the main characteristic of an agile team, as opposed to a traditional team that follows a fixed plan and delivers on predefined dates. Agile teams use various frameworks, such as Scrum, Kanban, and Extreme Programming, but these are not essential to be agile. Agile teams also have shorter iterations, such as biweekly sprints, but these are not the only way to ensure on-time delivery.