Best Security and Accountability for a Data Center

C.

All of the options provided in the answer choices can contribute to security in a data center. However, the BEST security and accountability solution depends on the specific requirements and needs of the data center. Here's a brief overview of each option:

A. Entry logging: Entry logging involves tracking who enters the data center, when they enter, and how long they stay. This can be done through various methods such as video surveillance, access control systems, and visitor logs. Entry logging provides a record of who accessed the data center and when, which can be useful for auditing and investigation purposes.

B. Combination locks: Combination locks require a code to unlock the door, which can provide an additional layer of security. However, if the code is not changed regularly or if it is shared among multiple people, the security of the data center could be compromised.

C. Card keys: Card keys are electronic keys that are used to access the data center. They can be programmed to limit access to specific areas of the data center based on the user's credentials. Card keys can also be deactivated if they are lost or stolen, which can help prevent unauthorized access.

D. Deadbolts: Deadbolts are heavy-duty locks that can provide physical security for the data center. However, they may not be the most practical solution for a data center because they do not provide any accountability or tracking features.

In summary, the BEST security and accountability solution for a data center will depend on various factors such as the size of the data center, the number of employees who require access, and the sensitivity of the data being stored. It's likely that a combination of these options will be used to provide the most effective security solution.