A multinational corporation operates a distributed system across multiple cloud platforms, including IaaS, PaaS, and SaaS solutions, to manage their global operations efficiently. The system leverages grid computing for data$-$intensive tasks like climate modeling and utilizes a peer$-$to$-$peer network for decentralized file sharing among their international offices.

Considering the cybersecurity vulnerabilities inherent in such a complex setup, which of the following strategies would best enhance the security of this distributed system?

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A multinational corporation operates a distributed system across multiple cloud platforms, including IaaS, PaaS, and SaaS solutions, to manage their global operations efficiently. The system leverages grid computing for data$-$intensive tasks like climate modeling and utilizes a peer$-$to$-$peer network for decentralized file sharing among their international offices.

Considering the cybersecurity vulnerabilities inherent in such a complex setup, which of the following strategies would best enhance the security of this distributed system?

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Consolidating all client data into a single, highly secure database with frequent backups performed on a bi$-$weekly basis.

Increasing the number of servers in each data center to handle additional load and prevent potential downtimes.

Implementing a comprehensive data replication strategy across multiple geographic locations, combined with real$-$time data mirroring and transaction logging for immediate recovery in any disaster scenario.

Deploying a single$-$instance database with multiple access points to reduce the complexity and potential points of failure in the system architecture.