What would prevent a user from syncing a quote with an opportunity?

AW Computing is conducting an audit and wants to understand how many objects have been shared as public externally.
which tool should the administrator use to quickly obtain this details?

The administrator at Cloud Kicks has been asked to delete a large number of quote line items. The/ receive a .csv fife with the record IDs to be deleted. The administrator uses Data Loader to delete them and selects Use Sulk APL When the job runs, every record shows an 'entity Is deleted' error In the error file that is created.
What is the reason for the error?

An administrator would Like to know If any other administrators or delegated administrators are using the Log In As a User feature.
Where the administrators should are using the Log in As a User feature.

The sales manager at Cloud Kicks (CK) wants to make sure the accounts that CK serves are happy. One way they track this is by how many open cases an account has with CK. The sales manager asks CK's administrator to build a report to show Accounts with Open Cases.
What report type would this be?