2. Packet-switched describes the type of network in which
relatively small units of data called packets are routed
through a network based on the destination address
contained within each packet. Breaking communication
down into packets allows the same data path to be
shared among many users in the network.
What is a packet switched network?
3. What is a circuit switched network?
Circuit switching is a methodology of implementing a
telecommunications network in which two network
nodes establish a dedicated communications channel
(circuit) through the network before the nodes may
communicate.
4. Who invented packet switching?
Paul Baran, whose Cold War era invention of packet
switching technology helped to lay the foundation for
the Internet, has died at the age of 84. Paul Baran, whose
Cold War era invention of packet switching technology
helped to lay the foundation for the Internet, has died at
the age of 84 in Palo Alto, Calif.
5. What is hop count?
In computer networking, a hop is one portion of the
path between source and destination. Data packets pass
through bridges, routers and gateways on the way. Each
time packets are passed to the next device, a hop occurs.
6. Circuit
Switching
In a circuit-switched network, before communication can occur between two devices, a
circuit is established between them. This is shown as a thick blue line for the conduit of data
from Device A to Device B, and a matching purple line from B back to A. Once set up, all
communication between these devices takes place over this circuit, even though there are
other possible ways that data could conceivably be passed over the network of devices
between them.
7. Packet
Switching
In a packet-switched network, no circuit is set up prior to
sending data between devices. Blocks of data, even from
the same file or communication, may take any number of
paths as it journeys from one device to another.
