text
stringlengths
3
233
Protocol I-Protocol
traffic O
. O
</s>
<s>
It O
was O
created O
from O
scratch O
and O
is O
actively O
developed O
by O
CZ.NIC B-Protocol
, O
the O
.CZ B-General_Concept
domain O
registry O
. O
</s>
<s>
HTTP B-Protocol
Strict I-Protocol
Transport I-Protocol
Security I-Protocol
( O
HSTS O
) O
is O
a O
policy O
mechanism O
that O
helps O
to O
protect O
websites O
against O
man-in-the-middle O
attacks O
such O
as O
protocol B-Protocol
downgrade I-Protocol
attacks I-Protocol
and O
cookie B-Protocol
hijacking I-Protocol
. O
</s>
<s>
By O
the O
1990s O
, O
telecommunication O
networks O
such O
as O
the O
public O
switched O
telephone O
network O
( O
PSTN O
) O
had O
been O
largely O
digitized O
with O
very-large-scale O
integration O
( O
VLSI O
) O
CMOS B-Device
PCM B-Algorithm
codec-filters O
, O
widely O
used O
in O
electronic B-Device
switching I-Device
systems I-Device
for O
telephone O
exchanges O
, O
private B-Device
branch I-Device
exchanges I-Device
( O
PBX O
) O