Explanation
**Sleep** places the computer in a low-power state while programs continue running. **Restart** closes programs, shuts Windows down, and starts the computer again. **Log off** closes programs and leaves the computer on, while **Shut down** closes programs and turns the computer off. Lock does not log the user out or close programs; it requires the user to authenticate again to resume access. **Key takeaway:** Choose a power option based on whether the session should remain active, end, or restart.\n\n**Glossary:**\n- **Sleep**: A low-power state in which programs remain running.\n- **Restart**: A process that shuts down Windows and starts it again.\n- **Log off**: An action that ends a user's session while leaving the computer on.
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