This course will further develop the applied operating system, system administration and virtualization concepts introduced in CISS 100. Operating system theory and practice will be explored in both the Linux and Windows environments. Theoretical topics include: process management, communication and synchronization, memory management, device management, file systems, system administration and software management and security. Practical application will be applied to the most recent version of VMware VSphere with VCenter managing a HA/DRS cluster. This virtual environment allows simulation of multiple server and client environments in a heterogeneous networking environment. This environment will include, but is not limited to, basic network design including standard and distributed virtual switches, use of Network Address Translation (NAT), high-availability planning, load balancing using DRS, server software installation and management, account/username maintenance, authentication subsystems and integration, disk and file system maintenance, application installation and configuration, printing and the use of directories (e.g. LDAP and Active Directory).