Which Command Revokes ACL-Based Write Access for Groups and Named

question 46

Multiple Choice

Which command revokes ACL-based write access for groups and named users on the file afile?

• A) setfacl -x group: * : rx, user:*: rx afile
• B) setfacl -x mask: : rx afile
• C) setfacl ~m mask: : rx afile
• D) setfacl ~m group: * : rx, user :*: rx afile

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Definitions:

Marginal Social Benefit

The supplementary gain for society derived from the consumption of one extra unit of a good or service.

Marginal Social Cost

The cost to society of producing an additional unit of a good or service, including both private costs and any externalities.

Marginal Social Benefit

The additional gain to society as a whole from an additional unit of a good or service.

Emissions Tax

A tax imposed on the emission of pollutants, aimed at reducing the environmental externality costs of these emissions.