In controlled access, the stations consult one another to find which station has the right to send. A station cannot send unless it has been authorized by other stations. There are 3 protocols
>reservation
>polling
>token passing
Is one of the three types of Access Protocols. In this method any station has the right to access the medium with out being controlled by any station.
Access protocols govern how multiple devices share a communication medium, with key differences in their principles. Contention-based protocols, like CSMA/CD, allow devices to compete for access, leading to potential collisions, while controlled access protocols, like token ring, use a token to grant permission to transmit, reducing the chance of collisions. Time Division Multiple Access (TDMA) allocates specific time slots for each device, ensuring orderly communication. Each protocol balances efficiency, fairness, and complexity differently, influencing their suitability for various networking environments.
NTLM
network protocols
Clear access into and out of chemical zones to avoid contamination is referred to as "controlled access" or "restricted access." This practice is essential for maintaining safety and preventing the spread of hazardous materials. It often includes designated entry and exit points, signage, and protocols to limit exposure and ensure proper handling of chemicals.
Yes, it can be controlled
NAC
Access control list
An access point is a general technology term that is used to define a physical device that provides access to a network, most often the Internet. An access point can be a DSL line, a wireless hotspot, or even another computer when placed into ad hoc network mode. Access points are important when assessing computer network security. The term is also frequently used when referring to the protocol that is used to connect to the Internet since different access points can use different protocols.
Extranets typically utilize several protocols to ensure secure and efficient communication. Commonly used protocols include HTTP/HTTPS for web-based access, FTP for file transfers, and VPN protocols (like IPsec or SSL/TLS) to secure connections over the internet. Additionally, email protocols such as SMTP and IMAP may be employed for communication between users within the extranet. Overall, the choice of protocols depends on the specific requirements for security, data exchange, and user access.
It is known as a deterministic access method.
that of determining who gets to talk (i.e., transmit into the channel), and when.Computer networks similarly have protocols - so-called multiple access protocols - by which nodes regulate their transmission onto the shared broadcast channel.