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   In the context of data security, which two of the following are examples of physical access controls to protect computer equipment or data storage media?
  (i) Card entry systems
  (ii) Back-up controls
  (iii) Personal identification numbers
  (iv) Logical access systems
  A.(i) and (ii)
  B.(ii) and (iii)
  C.(i) and (iii)
  D.(ii) and (iv)
  答案:C
  Physical access controls are basically ‘lock and key’ systems – basic though that may sound!Card entry and PIN systems are ways of identifying yourself (by swipe card and keypad entry respectively) in order to gain authorised entry to an area or storage device. Logical access systems are non-physical access controls, involving password-protected access to data in the system. Back-ups are not access controls at all: they are integrity and/or contingency controls.
  小编寄语:日日行,不怕千万里,时时做,不怕千万事。
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