Corporate espionage involves the intentional theft of proprietary or confidential business information by a competitor. In this scenario, Company B deliberately placed an employee inside Company A to steal sensitive information, which directly aligns with corporate espionage.

Segmentation is a network design technique that divides the network into smaller and isolated segments based on logical or physical boundaries. Segmentation can help improve network security by limiting the scope of an attack, reducing the attack surface, and enforcing access control policies. Segmentation can also enhance network performance, scalability, and manageability. To accomplish the goal of storing customer data on a separate part of the network, the administrator can use segmentation technologies such as subnetting, VLANs, firewalls, routers, or switches.

An air-gapped configuration physically or logically isolates systems from external networks, including the internet, ensuring they cannot communicate outside the controlled environment.

A generator provides backup power in the event of a power outage, ensuring that critical systems remain operational. Since the company's only data center was halted due to the outage, installing a generator would help prevent downtime in the future by supplying power when the main power source fails. Other options, such as snapshots and load balancing, do not directly address power failure issues.