Universal Containers (UC) environment management architect is using the package development model for deployment to different orgs.
Which metadata changes does the architect need to track manually?

The CTO at Universal Containers is complaining to the software development managers that he has no visibility of their teams' work status.
What two software development methodologies should an architect suggest to solve this issue, and why?
Choose 2 answers

The CEO at Universal Containers (UC) is receiving constant complaints from business stakeholders that the development teams are not frequently delivering value to the end-user. The CEO talked with the CTO, who argues the opposite, explaining that the development teams are delivering value every Sprint.
The architect suggests to the CTO to implement Kanban to solve this disagreement.
How can Kanban help clarify whether value is being delivered to the business?

Northern Trail Outfitters (NTO) recently acquired Eastern Trail Outfitters (ETO). NTO's sales leadership team had hands-on experience with the ETO's Sales Optimization app and have given the feedback that the app would benefit NTO's sales team.
Which option should the architect recommend for having ETO's Sales Optimization app in NTO's Salesforce org in the shortest possible time?

Universal Containers (UC) is planning for a huge data migration from a homegrown on-premise system to Salesforce as part of their Service Cloud implementation. UC has approximately 5 million customers, 10 million contacts, and 30 million active cases.
Which three key areas should be tested as part of Data Migration? (Choose three.)