What is master and slave in server?
What is master and slave in server?
Master/slave is a model of asymmetric communication or control where one device or process (the “master”) controls one or more other devices or processes (the “slaves”) and serves as their communication hub.
Is a server a master or slave?
All protocols support direct node-to-node communication. In general, as the following image demonstrates, a Server serves multiple Clients, while multiple Slaves serve only one Master, which describes only one aspect of the differences between the two communication models.
What is a slave server?
A slave server maintains a copy of the data for the zone. The master server sends its data and delegates authority to the slave server. Clients can query a slave server for DNS information. By using slave servers, you can improve response time and reduce network overhead by spreading the load over multiple machines.
What is master-slave used for?
Master/slave is a model of communication for hardware devices where one device has a unidirectional control over one or more devices. This is often used in the electronic hardware space where one device acts as the controller, whereas the other devices are the ones being controlled.
What is difference between client server and master-slave?
A master is a device that is actively polling for data from one or multiple devices using a serial communication protocol. A slave is the counterpart of the master. A client is a device that is actively polling for data from one or multiple devices.
What is master-slave in DB?
Master-slave replication enables data from one database server (the master) to be replicated to one or more other database servers (the slaves). The master logs the updates, which then ripple through to the slaves. If the changes are made to the master and slave at the same time, it is synchronous.
What is difference between client server and master slave?
Is a Modbus server a slave?
Modbus serial protocol (the original version) is a master/slave protocol, e.g. one master that controls the Modbus data transactions with multiple slaves that respond to the master’s requests to read from or write data to the slaves.
What is the difference between master slave and client server?
What is the difference between master and slave?
Simply, a master is a device or a process that controls other devices or processes and a slave is a device or a process that is controlled by another device or a process.
How do you define master-slave?
(1) An electronic interaction in which one device acts as the controller (the master) and initiates the commands, and the other devices (the slaves) respond accordingly. See master-slave communications. (2) An ordering of electronic devices in a primary-secondary sequence.
Where did master-slave come from?
The “master/slave” metaphor in technology dates back to at least 1904, describing a sidereal clock system at an observatory in Cape Town, according to a 2007 essay by Ron Eglash, a professor at the University of Michigan.
