B
Explanation:
The Alter command is used when we want to modify a database or object contain in database.
Answer: Safety effort of system is defines as the measures that are taken to provide and maintain the protection of the system.There are several methods ,tool and efforts made for the system security .Benefits of the system security are as follows:-
- Takes control over the hazardous situation and maintain the security
- System security will also increase the development of the system easily.
- Approach towards the analyzing of the system function
- Data, information and functions are safe from being detected in unauthorized way.
- Functions and implementation is made easy without the fear of getting attacked or hacked.
Probes and Drones
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Access the File<span> menu, choose </span>Info Pane<span> to get to </span>Backstage view, you can see Properties on t<span>he area on the right side </span>of the current PowerPoint presentation. <span>Within the </span>Properties<span> pane click the </span>Show All Properties<span> option , T</span><span>his will displays properties such as </span>Size<span>, the number of </span>Slides<span>, </span>Hidden Slides<span>, the number of </span>Multimedia Clips, etc. Some of the entries are editable w<span>ithin the </span>Properties pane, and some are not. Just move your mouse cursor over any detail of a property. The editable sections will change the cursor into edit mode.
A mail server. --------------------------------------------
