Answer:
C. Bell and LaPadula
Explanation:
The first mathematical models of multilevel security computer system was developed by Bell and Lapadula. Their full names are David Elliot Bell and Leonard J. Lapadula. Their model used to define the concept of modes of access,secure state machine and outlined the rules of access.
 
        
             
        
        
        
Answer:
the system tray is located in the Windows Taskbar (usually at the bottom next to the clock) and contains miniature icons for easy access to system functions such as fax, printer, modem, volume, and more. Double click or right click on an icon to view and access the details and controls.
Explanation: in window 95
 
        
                    
             
        
        
        
Answer:
C. A cold site is a leased facility that contains only electrical and communications wiring, air conditioning, plumbing, and raised flooring. No communications equipment, networking hardware, or computers are installed at a cold site until it is necessary to bring the site to full operation.
Explanation:
 
        
             
        
        
        
My guess is d but I’m not positive
        
             
        
        
        
Answer:
You should disable termination on the Small Computer System Interface (SCSI) controller card.
Explanation:
SCSI is an acronym for Small Computer System Interface, which is also generally referred to as host bus adapter (HBA). The SCSI is typically a chip that controls the communication between the operating system (OS), storage devices such as hard disk drives and the host computer system. Also, it helps with the interpretation of the electrical signals between the Small Computer System Interface (SCSI) bus and the input-output bus for storage devices. 
In this scenario, you want to upgrade a server by installing an external SCSI tape drive. The system currently has a Small Computer System Interface (SCSI) card and an internal SCSI hard drive. At bootup, the system fails to recognize the new tape drive. To solve this problem, you should disable termination on the SCSI controller card so that only the external SCSI tape drive will be active and the SCSI won't be detected.