Geo-redundancy involves distributing data and applications across multiple geographically separated data centers or availability zones. This ensures high availability by protecting against localized failures (such as outages in one data center) and allows the cloud provider to maintain service availability even if one location experiences an issue.

Penetration testing involves simulating attacks on a cloud environment to identify security vulnerabilities. Due to the potential impact on the cloud infrastructure and other tenants, it typically requires formal authorization from the Cloud Service Provider (CSP) before execution.
The CSP needs to ensure that the testing does not disrupt services, compromise security, or violate terms of service agreements.