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What (who) is access control - definition
SELECTIVE RESTRICTION OF ACCESS TO A PLACE OR OTHER RESOURCE, ALLOWING ONLY AUTHORIZED USERS
Access Control; Access controls; Access control system; Access Control Systems; Physical access control; Access control protocol; Subject (access control); Authentication in web; Access policy; Personal access control system; Vehicle access control system; Electronic access control
![Underground entrance to the [[New York City Subway]] system](https://commons.wikimedia.org/wiki/Special:FilePath/NewYorkCitySubwayEntranceInterior.jpg?width=200 "Underground entrance to the [[New York City Subway]] system")
![Physical security access control with a [[hand geometry]] scanner](https://commons.wikimedia.org/wiki/Special:FilePath/Physical security access control with a fingerprint scanner.jpg?width=200 "Physical security access control with a [[hand geometry]] scanner")
 before allowing a driver to enter the gate at U.S. Fleet Activities Sasebo, Japan.jpg?width=200 "A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation.")
Media Access Control
SERVICE LAYER IN IEEE 802 NETWORK STANDARDS
Medium access control sublayer; Medium access controller; MAC layer; Medium Access Control; MAC sublayer; MAC protocol; Media Access Control; Media access control sublayer; Media access control; Media access controller
<networking> (MAC) The lower sublayer of the OSI {data link
layer}. The interface between a node's {Logical Link
Control} and the network's physical layer. The MAC differs
for various physical media.
See also MAC Address, Ethernet, IEEE 802.3, token ring.
[What does it do? Examples? ]
(1996-01-29)
Medium access control
SERVICE LAYER IN IEEE 802 NETWORK STANDARDS
Medium access control sublayer; Medium access controller; MAC layer; Medium Access Control; MAC sublayer; MAC protocol; Media Access Control; Media access control sublayer; Media access control; Media access controller
In IEEE 802 LAN/MAN standards, the medium access control (MAC, also called media access control) sublayer is the layer that controls the hardware responsible for interaction with the wired, optical or wireless transmission medium. The MAC sublayer and the logical link control (LLC) sublayer together make up the data link layer.
Medium Access Control
SERVICE LAYER IN IEEE 802 NETWORK STANDARDS
Medium access control sublayer; Medium access controller; MAC layer; Medium Access Control; MAC sublayer; MAC protocol; Media Access Control; Media access control sublayer; Media access control; Media access controller
Wikipedia
Access control
In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization.
Locks and login credentials are two analogous mechanisms of access control.
Examples of use of access control
1. The company ascribed most of the increase to its Passive RFID business – electronic access control and the like.
2. All access points into the building will be monitored by CCTV and have individual access–control keypads.
3. DRM is a generalized term that refers to access control technologies – physical ways to protect computer systems.
4. The delegate companies have extensive experience and knowledge across a range of security products from CCTV, to access control, perimeter detection, alarm monitoring software and data tracking systems.
5. While the government and the Maoists will be responsible for safeguarding these arms, the monitoring of access control will be done by the UN.