___________ is a security mechanism where a user can gain access only to a resource if the security or system administrator grants the access
a. Role-based access control
b. Mandatory access control
c. Discretionary access control
d. Break the glass access
B.
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A ________ can be used to block unauthorized access to a network
A) filter B) firewall C) hub D) switch
Searching a website to help you find just the right product involves database technology
Indicate whether the statement is true or false
Which multicast reserved address is designed to reach solicited-node addresses?
A. FF02::0:XXXX:XXXX B. FF02::1:FFXX C. FF01::2:FFXX:XXXX D. FF02::1:FFXX:XXXX
You can use a special value to represent situations in which an actual value is unknown, unavailable, or not applicable. This special value is called a(n) ____________________ data value.
Fill in the blank(s) with the appropriate word(s).