Explain the differences between public, private, and community clouds. What are some of the factors to consider when choosing which of the three to use?

What will be an ideal response?

Public
clouds
are
available
to
the
general
public;
private
clouds
are
operated
for
the
use
of
one
organization;
and
community
clouds
are
shared
by
several
organizations
with
common
needs.
Some
factors
to
consider:
Which
models
can
you
afford?
Are
there
other
organizations
with
whom
you
might
be
able
to
share
cloud
costs?
Can
you
afford
the
risks
of
shared
infrastructure