A. They can only be separate chemically
U Can use an anti virus, or do daily malware scans in ur device
<span>True. When users make changes to the database, such as creating, altering, or dropping tables or creating or dropping indexes, the DBMS updates the system catalog automatically.</span>
After installing your anti-virus, you must do the following to make sure that your computer will be virus free moving forward:
1. Scan every drive of your computer.
2. Scan every program, photo, video, etc before opening those.
3. Avoid visiting restricted sites.
4. Update your antivirus application. This way, the application gets new virus database.
5. Schedule antivirus scanning.
6. If your antivirus application do not have scheduled scanning, plan it.
7. Install antivirus widgets or extension in your web browser.
8. For maximum protection, you can install another antivirus application.
9. Uninstall risky applications.
10. Scan flashdrives before opening or exploing those. Avoid borrowing flashdrives.
11. Avoid inserting your flashdrives to other devices.
12. Defrag your system. Some virus can't be detected because your system's drive may be badly fragmented.
Answer:
A network attached storage (NAS) device is a server connected to a network with the sole purpose of providing storage. NAS devices often use a RAID configuration. An external hard disk is a separate freestanding hard disk that connects with a cable to a USB or FireWire port on the system unit or communicates wirelessly. External hard disks have storage capacities up to 4 TB and more. A removable hard disk can be inserted or removed from a built-in or external drive. Removable hard disks have storage capacities up to 1 TB. A disk controller consists of a special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a disk to and from the system bus and other components in a computer. A hard disk controller may be part of the hard disk on the motherboard, or it may be a separate adapter card inside the system unit.
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