Explanation:
Box 1: Yes
When you are away from your workstation, the Office 365 portal is the tool that allows you to access email, calendar, and files saved to OneDrive for Business.
The portal also offers online versions of Word, Excel, and PowerPoint, which allows for quick and easy viewing and editing of files.
Box 2: Yes
With the Microsoft 365 admin center, you can reset passwords, view your invoice, add or remove users, and much more all in one place.
The Microsoft 365 Apps admin center provides modern management in the cloud for admins who deploy and manage Microsoft 365 Apps in the enterprise.
Reference:
https://wp.umaryland.edu/what-is-the-office-365-portal-and-why-use-it/
https://docs.microsoft.com/en-us/deployoffice/admincenter/overview