When leasing space in a data center, an organization can avoid the enormous startup and building costs associated with a data center, and can instead leverage economies of scale by grouping with other organizations and sharing costs.

A reservation is a minimum resource that is guaranteed to a customer within a cloud environment. Within a cloud, a reservation can pertain to the two main aspects of computing:
memory and processor. With a reservation in place, the cloud provider guarantees that a cloud customer will always have at minimum the necessary resources available to power on and operate any of their services.

Explanation
A network-based IDS has the advantage of being segregated from host systems, and as such, it would not be open to compromise in the same manner a host-based system would be. Although a network-based IDS would be external to system patching, this is not the best answer here because it is a minor concern compared to segregation due to possible host compromise. Scalability is also not the best answer because, although a network-based IDS does remove processing from the host system, it is not a primary security concern.
Network access is not a consideration because both a host-based IDS and a network-based IDS would have access to network resources.

Explanation
Volume storage is allocated via a LUN to a system and then treated the same as any traditional storage. The operating system is responsible for formatting and securing volume storage as well as controlling all access to it. Applications, although they may use volume storage and have permissions to write to it, are not responsible for its formatting and security. Both a hypervisor and the management plane are outside of an individual system and are not responsible for managing the files and storage within that system.

Information rights management (IRM) technologies allow security controls and policies to be enforced on a data object regardless of where it resides. They also allow for extended controls such as expirations and copying restrictions, which are not available through traditional control mechanisms. Hypertext Transfer Protocol Secure (HTTPS), virtual private network (VPN), and Transport Layer Security (TLS) are all technologies and protocols that are widely used with cloud implementations for secure access to systems and services and likely will be used in conjunction with other object data protection strategies.