<s>
A	O
virtual	B-General_Concept
private	I-General_Concept
cloud	I-General_Concept
(	O
VPC	O
)	O
is	O
an	O
on-demand	O
configurable	O
pool	O
of	O
shared	B-General_Concept
resources	I-General_Concept
allocated	O
within	O
a	O
public	O
cloud	B-Architecture
environment	O
,	O
providing	O
a	O
certain	O
level	O
of	O
isolation	O
between	O
the	O
different	O
organizations	O
(	O
denoted	O
as	O
users	O
hereafter	O
)	O
using	O
the	O
resources	O
.	O
</s>
<s>
The	O
isolation	O
between	O
one	O
VPC	O
user	O
and	O
all	O
other	O
users	O
of	O
the	O
same	O
cloud	B-Architecture
(	O
other	O
VPC	O
users	O
as	O
well	O
as	O
other	O
public	O
cloud	B-Architecture
users	I-Architecture
)	O
is	O
achieved	O
normally	O
through	O
allocation	O
of	O
a	O
private	O
IP	O
subnet	O
and	O
a	O
virtual	O
communication	O
construct	O
(	O
such	O
as	O
a	O
VLAN	B-General_Concept
or	O
a	O
set	O
of	O
encrypted	O
communication	O
channels	O
)	O
per	O
user	O
.	O
</s>
<s>
In	O
a	O
VPC	O
,	O
the	O
previously	O
described	O
mechanism	O
,	O
providing	O
isolation	O
within	O
the	O
cloud	B-Architecture
,	O
is	O
accompanied	O
with	O
a	O
virtual	B-Application
private	I-Application
network	I-Application
(	O
VPN	B-Application
)	O
function	O
(	O
again	O
,	O
allocated	O
per	O
VPC	O
user	O
)	O
that	O
secures	O
,	O
by	O
means	O
of	O
authentication	O
and	O
encryption	O
,	O
the	O
remote	O
access	O
of	O
the	O
organization	O
to	O
its	O
VPC	O
resources	O
.	O
</s>
<s>
With	O
the	O
introduction	O
of	O
the	O
described	O
isolation	O
levels	O
,	O
an	O
organization	O
using	O
this	O
service	O
is	O
in	O
effect	O
working	O
on	O
a	O
'	O
virtually	O
private	O
 '	O
cloud	B-Architecture
(	O
that	O
is	O
,	O
as	O
if	O
the	O
cloud	B-Architecture
infrastructure	O
is	O
not	O
shared	O
with	O
other	O
users	O
)	O
,	O
and	O
hence	O
the	O
name	O
VPC	O
.	O
</s>
<s>
VPC	O
is	O
most	O
commonly	O
used	O
in	O
the	O
context	O
of	O
cloud	B-Architecture
infrastructure	B-General_Concept
as	I-General_Concept
a	I-General_Concept
service	I-General_Concept
.	O
</s>
<s>
In	O
this	O
context	O
,	O
the	O
infrastructure	O
provider	O
,	O
providing	O
the	O
underlying	O
public	O
cloud	B-Architecture
infrastructure	O
,	O
and	O
the	O
provider	O
realizing	O
the	O
VPC	O
service	O
over	O
this	O
infrastructure	O
,	O
may	O
be	O
different	O
vendors	O
.	O
</s>
<s>
Amazon	B-Application
Web	I-Application
Services	I-Application
launched	O
Amazon	B-General_Concept
Virtual	I-General_Concept
Private	I-General_Concept
Cloud	I-General_Concept
on	O
26	O
August	O
2009	O
,	O
which	O
allows	O
the	O
Amazon	B-General_Concept
Elastic	I-General_Concept
Compute	I-General_Concept
Cloud	I-General_Concept
service	O
to	O
be	O
connected	O
to	O
legacy	O
infrastructure	O
over	O
an	O
IPsec	B-Protocol
VPN	B-Application
.	O
</s>
<s>
In	O
AWS	B-Application
,	O
the	O
basic	O
VPC	O
is	O
free	O
to	O
use	O
,	O
with	O
users	O
being	O
charged	O
by	O
usage	O
for	O
additional	O
features	O
.	O
</s>
<s>
IBM	B-General_Concept
Cloud	I-General_Concept
launched	O
IBM	B-General_Concept
Cloud	I-General_Concept
VPC	O
on	O
4	O
June	O
2019	O
,	O
provides	O
an	O
ability	O
to	O
manage	O
virtual	O
machine-based	O
compute	O
,	O
storage	O
,	O
and	O
networking	O
resources	O
.	O
</s>
<s>
Pricing	O
for	O
IBM	B-General_Concept
Cloud	I-General_Concept
Virtual	B-General_Concept
Private	I-General_Concept
Cloud	I-General_Concept
is	O
applied	O
separately	O
for	O
internet	O
data	O
transfer	O
,	O
virtual	O
server	O
instances	O
,	O
and	O
block	O
storage	O
used	O
within	O
IBM	B-General_Concept
Cloud	I-General_Concept
VPC	O
.	O
</s>
<s>
Google	B-General_Concept
Cloud	I-General_Concept
Platform	I-General_Concept
resources	O
can	O
be	O
provisioned	O
,	O
connected	O
,	O
and	O
isolated	O
in	O
a	O
virtual	B-General_Concept
private	I-General_Concept
cloud	I-General_Concept
(	O
VPC	O
)	O
across	O
all	O
GCP	O
regions	O
.	O
</s>
<s>
VPCs	O
on	O
Google	B-General_Concept
Cloud	I-General_Concept
Platform	I-General_Concept
leverage	O
the	O
security	O
of	O
Google	O
's	O
data	B-Operating_System
centers	I-Operating_System
.	O
</s>
<s>
Microsoft	B-Application
Azure	I-Application
offers	O
the	O
possibility	O
of	O
setting	O
up	O
a	O
VPC	O
using	O
Virtual	O
Networks	O
.	O
</s>
