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
|
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