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:
Memory-mapped I/O and port-mapped I/O are two complementary methods of performing input/output between the central processing unit and peripheral devices in a computer. An alternative approach is using dedicated I/O processors, commonly known as channels on mainframe computers, which execute their own instructions.
Answer:
INPUT
Explanation:
EXAMPLE PYTHON CODE
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INPUT CODE:
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foo = input('foo: ')#Have some text printed before the input field
bar = foo
print(bar)
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OUTPUT CODE:
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foo: Hello World!
Hello World!
>>> bar
'Hello World!'
>>>foo
'Hello World!'
