CNIT 242 Exam #2 Test Questions with 100% Verified
Answers Graded A+
Virtualization - ANSWER -running multiple bloat.
systems simultaneously on one physical
computer
Client Based (Hosted) Architecture -
ANSWER -The virtualization layer is
System Virtualization - ANSWER -The installed on top of an existing Operating System
process of emulating hardware so it can as an application
be made available to multiple logical systems
Client Based (Hosted) Architecture typically
True or False: Each system is independent of all allows the best support for what host hardware? -
others - ANSWER -True ANSWER -Sound cards, USB ports, etc.
A single computer (virtual server) appears as Another name for Client Based (Hosted)
WHAT TYPE of computers to multiple client or Architecture is... - ANSWER -Workstation
guest virtualization
operating systems? - ANSWER -
independent
Which architecture if more efficient...Client
Based(Hosted) Architecture or Bare-
Traditional vs virtualized - ANSWER -- Metal(Hypervisor) Architecture? -
Traditionally, hardware is dedicated to OS, on ANSWER -Bare-Metal(Hypervisor)
which applications run Architecture
-Virtualization software emulates hardware,
which guest OSes use as if real
True or False: Separate Operating System are
required for Bare-Metal (Hypervisor) Architecture
When did virtualization start? and why? - - ANSWER -False, No separate Operating
ANSWER -Started by IBM in the 1960s to System is necessary
partition large mainframe-based systems
Bare-Metal (Hypervisor) Architecture -
When did virtualization stop? and why? - ANSWER -Virtualization layer that is
ANSWER -Abandoned in the 1980s - 90s. installed directly on the hardware
Due to inexpensive x86 servers and the
popularity of
client/server applications Virtual Machine(VM) - ANSWER -Each
environment available for O/S installation
When did virtualization pick back up? and why? -
ANSWER -Virtualization support for x86 Guest Operating System - ANSWER -The
systems was operating system installed in a VM
started in 1998 by VMware to address server
, CNIT 242 Exam #2 Test Questions with 100% Verified
Answers Graded A+
ANSWER -Uses a modified guest OS to
Host Operating System - ANSWER -In a remove
hosted architecture, the O/S in which the non-virtualizable instructions
virtualization software runs
hardware-assisted virtualization (HAV) -
Hypervisor - ANSWER -The software that ANSWER -Hypervisor traps non-
provides the virtualization layer in a bare-metal virtualizable instructions
architecture and re-issues them to hardware in root mode,
which is a function of CPU enhancements
Virtualization Advantages - ANSWER --
Flexibility Memory Virtualization - ANSWER -Uses
-Increased reliability virtual to physical mappings maintained by the
-Provides a consistent hardware interface hypervisor
regardless of the underlying physical
hardware
-Increased capacity and scalability Device and I/O Virtualization - ANSWER --
-Lower infrastructure costs Involves managing the routing of I/O requests
-Reduced energy costs between virtual devices and the shared physical
hardware
-Biggest performance hit in system virtualization
Virtualization Disadvantages - ANSWER --
Single point of failure
-Complicates hardware maintenance System Virtualization Futures - ANSWER --
-Harder to keep track of software and OSes Virtualization will continue to be a key
technology through the foreseeable future
-Future development will likely
System Virtualization Components -
ANSWER --Full Virtualization
-Paravirtualization (aka - OS Assist) Client Based Virtualization Software -
-Hardware Assisted ANSWER --Windows
-Memory Virtualization -Macintosh
-Device and I/O Virtualization -Linux
Full Virtualization - ANSWER --Uses binary Hypervisor Virtualization Software -
translation to execute instructions ANSWER --VMware vSphere
that are non-virtualizable -Microsoft HyperV
-Offers the best isolation and most security -Xen
between VMs but is very complex
Why VMware? - ANSWER -Market leader,
Paravirtualization (aka - OS Assist) - the most robust product offering, and Extensible.
Answers Graded A+
Virtualization - ANSWER -running multiple bloat.
systems simultaneously on one physical
computer
Client Based (Hosted) Architecture -
ANSWER -The virtualization layer is
System Virtualization - ANSWER -The installed on top of an existing Operating System
process of emulating hardware so it can as an application
be made available to multiple logical systems
Client Based (Hosted) Architecture typically
True or False: Each system is independent of all allows the best support for what host hardware? -
others - ANSWER -True ANSWER -Sound cards, USB ports, etc.
A single computer (virtual server) appears as Another name for Client Based (Hosted)
WHAT TYPE of computers to multiple client or Architecture is... - ANSWER -Workstation
guest virtualization
operating systems? - ANSWER -
independent
Which architecture if more efficient...Client
Based(Hosted) Architecture or Bare-
Traditional vs virtualized - ANSWER -- Metal(Hypervisor) Architecture? -
Traditionally, hardware is dedicated to OS, on ANSWER -Bare-Metal(Hypervisor)
which applications run Architecture
-Virtualization software emulates hardware,
which guest OSes use as if real
True or False: Separate Operating System are
required for Bare-Metal (Hypervisor) Architecture
When did virtualization start? and why? - - ANSWER -False, No separate Operating
ANSWER -Started by IBM in the 1960s to System is necessary
partition large mainframe-based systems
Bare-Metal (Hypervisor) Architecture -
When did virtualization stop? and why? - ANSWER -Virtualization layer that is
ANSWER -Abandoned in the 1980s - 90s. installed directly on the hardware
Due to inexpensive x86 servers and the
popularity of
client/server applications Virtual Machine(VM) - ANSWER -Each
environment available for O/S installation
When did virtualization pick back up? and why? -
ANSWER -Virtualization support for x86 Guest Operating System - ANSWER -The
systems was operating system installed in a VM
started in 1998 by VMware to address server
, CNIT 242 Exam #2 Test Questions with 100% Verified
Answers Graded A+
ANSWER -Uses a modified guest OS to
Host Operating System - ANSWER -In a remove
hosted architecture, the O/S in which the non-virtualizable instructions
virtualization software runs
hardware-assisted virtualization (HAV) -
Hypervisor - ANSWER -The software that ANSWER -Hypervisor traps non-
provides the virtualization layer in a bare-metal virtualizable instructions
architecture and re-issues them to hardware in root mode,
which is a function of CPU enhancements
Virtualization Advantages - ANSWER --
Flexibility Memory Virtualization - ANSWER -Uses
-Increased reliability virtual to physical mappings maintained by the
-Provides a consistent hardware interface hypervisor
regardless of the underlying physical
hardware
-Increased capacity and scalability Device and I/O Virtualization - ANSWER --
-Lower infrastructure costs Involves managing the routing of I/O requests
-Reduced energy costs between virtual devices and the shared physical
hardware
-Biggest performance hit in system virtualization
Virtualization Disadvantages - ANSWER --
Single point of failure
-Complicates hardware maintenance System Virtualization Futures - ANSWER --
-Harder to keep track of software and OSes Virtualization will continue to be a key
technology through the foreseeable future
-Future development will likely
System Virtualization Components -
ANSWER --Full Virtualization
-Paravirtualization (aka - OS Assist) Client Based Virtualization Software -
-Hardware Assisted ANSWER --Windows
-Memory Virtualization -Macintosh
-Device and I/O Virtualization -Linux
Full Virtualization - ANSWER --Uses binary Hypervisor Virtualization Software -
translation to execute instructions ANSWER --VMware vSphere
that are non-virtualizable -Microsoft HyperV
-Offers the best isolation and most security -Xen
between VMs but is very complex
Why VMware? - ANSWER -Market leader,
Paravirtualization (aka - OS Assist) - the most robust product offering, and Extensible.
