An organization seeks to create a cost-effective test and simulation environment. Which of the following would be a good recommendation? (Choose 2)

Virtualization and emulation are core technologies for creating cost-effective test and simulation environments. They enable a single physical server to host multiple, isolated virtual machines or emulated systems. This approach drastically reduces the need for physical hardware, leading to significant savings in capital expenditure, power, cooling, and physical space. It provides the flexibility to quickly provision, configure, and tear down complex testbeds without impacting production systems, making it an efficient and economical solution.

A. Purchase new servers: This is a capital-intensive approach that directly opposes the goal of creating a cost-effective environment.
C. Use notebook PCs as servers: Notebooks lack the performance, reliability, and management features required for stable and scalable server workloads in a test environment.

1. Tanenbaum, A. S., & Bos, H. (2015). Modern Operating Systems (4th ed.). Pearson Education. Chapter 8, "Virtualization," discusses how virtualization allows multiple operating systems to run on the same hardware, maximizing resource utilization.

2. Garfinkel, T., & Rosenblum, M. (2005). When Virtual is Harder than Real: Security Challenges in Virtual Machine Based Computing Environments. Proceedings of the 10th conference on Hot Topics in Operating Systems, Vol. 10. This paper discusses the use of virtual machines for creating isolated environments, a key aspect of testing and simulation. (See Section 2: VMM-based Security Services).