Define the term "cloud security."

Cloud security refers to the strategies, processes, and technologies that are put in place to protect cloud-based services, applications, and data. This encompasses a wide range of measures intended to safeguard information stored in the cloud from various threats, including unauthorized access, data breaches, and service disruptions.

This definition is particularly relevant in today's digital landscape, where organizations increasingly rely on cloud computing for their operations. Cloud security is not limited to a single aspect; it includes data encryption, identity and access management, network security, and compliance with regulations.

The other choices focus on different aspects of technology and data management. For instance, measures protecting data in local servers pertain to on-premises security concerns, which do not directly relate to the cloud environment. Tools for improved internet connectivity are more about enhancing connection speeds and reliability rather than securing cloud services. Policies for data sharing among applications address governance and interoperability issues, which, while important, do not specifically encompass the protective measures unique to the cloud infrastructure. Thus, the choice focusing on cloud-based services accurately captures the essence of cloud security.