CNIT 242 Exam 2 Questions and Answers Graded A+

CNIT 242 Exam 2 Questions and Answers Graded A+ Virtualization running multiple systems simultaneously on one physical computer System Virtualization The process of emulating hardware so it can be made available to multiple logical systems True or False: Each system is independent of all others True A single computer (virtual server) appears as WHAT TYPE of computers to multiple client or guest operating systems? independent Traditional vs virtualized -Traditionally, hardware is dedicated to OS, on which applications run -Virtualization software emulates hardware, which guest OSes use as if real When did virtualization start? and why? Started by IBM in the 1960s to partition large mainframe-based systems When did virtualization stop? and why? Abandoned in the 1980s - 90s. Due to inexpensive x86 servers and the popularity of client/server applications When did virtualization pick back up? and why? Virtualization support for x86 systems was started in 1998 by VMware to address server bloat. Client Based (Hosted) Architecture The virtualization layer is installed on top of an existing Operating System as an application Client Based (Hosted) Architecture typically allows the best support for what host hardware? Sound cards, USB ports, etc. Another name for Client Based (Hosted) Architecture is... Workstation virtualization Which architecture if more efficient...Client Based(Hosted) Architecture or Bare-Metal(Hypervisor) Architecture? Bare-Metal(Hypervisor) Architecture True or False: Separate Operating System are required for Bare-Metal (Hypervisor) Architecture False, No separate Operating System is necessary Bare-Metal (Hypervisor) Architecture Virtualization layer that is installed directly on the hardware Virtual Machine(VM) Each environment available for O/S installation Guest Operating System The operating system installed in a VM Host Operating System In a hosted architecture, the O/S in which the virtualization software runs Hypervisor The software that provides the virtualization layer in a bare-metal architecture Virtualization