Ensuring that the network administrator has exclusive control over firewall configurations while the security administrator exclusively manages antivirus software deployment embodies the principle of separation of duties.
Separation of duties involves dividing responsibilities such that no single individual has complete control over multiple aspects of a critical operation. Having a network administrator exclusively manage firewall configurations while a security administrator exclusively manages antivirus deployments is consistent with the principle of separation of duties, as it divides security responsibilities between different roles to reduce the risk of collusion and single points of failure. This enhances overall security by limiting the potential damage that can be caused by any one individual.