Operating System (OS)
The most common security failure is

insufficient technology used to prevent breaches
too much emphasis on preventing physical access
None of these
depending on passwords
carelessness by users

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Operating System (OS)
Link encryption

is less secure than end-to-end encryption
None of these
can not be used in a public network
is used only to debug
is more secure than end-to-end encryption

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Operating System (OS)
A relocate program form is one which

None of these
All of these
can itself performs the relocation of its address-sensitive portions.
consists of a program and relevant information for its relocation.
cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.

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