O Flashcards
OAUTH
Open Authorization
An authentication mechanism that allows secure
delegated access.
OCSP
Online Certificate Status Protocol
This protocol is used by the client to validate the status
of a received certificate.
OID
Object Identifier
This is a value, commonly associated with SNMP that is
used to identify aspects of a managed device or system.
OS
Operating System
The software on a system initially loaded that regulates
access to resources and facilitates the execution of
applications.
OSI
Open Systems Interconnection
A seven layer scheme that identifies commonly
implemented features involved in networked
applications and systems.
OSINT
Open-source Intelligence
Accessing data stores of information that enable one to
collect, analyze and discern useful information from
publicly available resources.
OSPF
Open Shortest Path First
An open standard routing protocol capable of dynamic
routing and the secure transfer of routing table
information.
OT
Operational Technology
Associated with industrial controls and processes, this
refers to systems that identify changes, perform
monitoring and control industrial equipment resources.
OTA
Over The Air
A general technology category of systems that use
wireless and cellular means to obtain new data or
updates.
OTG
On-The-Go
A technical specification for USB devices that allow
them to act as hosts and facilitate connections from
other USB devices, such as mice and keyboards.
OTP
One-time password
Implement the authentication with a secret that expires
upon initial access.
OTP
One-time pad
Involves a key that is as long as the message, but may
only be used once.
OVAL
Open Vulnerability
Assessment Language
A derivative of the SCAP program to automate
vulnerability detection and management.
