The deployment of a shield intended to block electromagnetic fields around server racks within a secure data center is primarily utilized to protect against information compromise due to electromagnetic interference.
The shield described is commonly known as a Faraday cage, which is designed to block or reduce electromagnetic interference (EMI). Its primary use is to protect sensitive electronic equipment from external electromagnetic fields, which can serve as a channel for data leakage if not adequately shielded. This form of physical control is preventative in nature and is specifically aimed at mitigating the risk of information compromise through electromagnetic means. Such a shield does not counter physical intrusions directly nor does it protect against other forms of electronic attacks, which could make this question challenging for students less familiar with the broader range of physical security measures.
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What is a Faraday cage and how does it work?
What are some potential threats that EMI poses to data security?
What are other physical security measures for data centers apart from EMI shielding?