SK0-004 · Question #326
Which of the following provides the BEST security and accountability for a Data Center?
The correct answer is C. Card keys. Card key systems provide both physical access control and an auditable log of who entered and when, satisfying both security and accountability requirements for a data center.
Question
Which of the following provides the BEST security and accountability for a Data Center?
Options
- AEntry logging
- BCombination locks
- CCard keys
- DDead bolts
How the community answered
(44 responses)- A2% (1)
- B2% (1)
- C86% (38)
- D9% (4)
Why each option
Card key systems provide both physical access control and an auditable log of who entered and when, satisfying both security and accountability requirements for a data center.
Entry logging alone records who enters but does not restrict unauthorized individuals from gaining access, so it provides accountability without security.
Combination locks restrict access but do not identify which individual used the combination, providing no accountability trail.
Card key (smart card or proximity card) systems enforce access control by allowing only authorized individuals to enter, and simultaneously record each entry event with a user identity and timestamp. This combination of prevention and auditable accountability makes card keys the strongest option among the choices for data center physical security.
Dead bolts provide physical access control via a key but do not log entry events or tie access to a specific individual identity.
Concept tested: Physical access control with audit logging for data centers
Source: https://csrc.nist.gov/publications/detail/sp/800-53/rev-5/final
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