networking 2
Terms
undefined, object
copy deck
- De Facto
- In reality or fact; actually.
- Print server
- provides access to shared printer
- Cleints
- need access to resources such as files, appications, printers
- Star Topolgy
-
A hub or repeater is in the center of the star. Circuitry in a hub can reproduce a bus, ring, or even mesh topology.
Most commonly used. - Peer-to-Peer Network
- computers talk directly to each other; used mostly for home use because it is cheap; but can have security risks
- Latency
-
n 1: (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head [syn: rotational latency] 2: the time that elapses between a stimulus and the response to it [syn: reaction time, response time, latent period] 3: the state of being not yet evident or active
- ANSI
-
American National Standards Institute
US's voting member of the ISO and ITU-T and works with them to make US national standards - NOS
-
Network Operating System -
An operating system
which includes software to communicate with other computers
via a network. This allows resources such as files,
application programs, and printers to be shared between
computers.
- Distributed Processing
- Opposite of centralized; user has control of data and apps; IS has little control;
- Novel Netware
- Killer app for LANs
- MAN
- Metropolitan Area Network
- jitter
-
Random variation in the timing of a signal, especially a
clock.
- Active Network
- Data transmitted over the network is passed from node-to-node and each node is responsible for transmitting the data to the next node on the ring.
- Servers
- provide resources to clients
- Centralized Processing
-
users access through a "dumb" terminal; apps executed on a centrlized computer (mainframe); uses timesharing;
IS staff has a lof control; user has little or no control over data and apps - CAN
- Campus area network
- Communication Server
- Provides access to shared communication devices such as modems or fax machines.
- Application server
- runs server based applications such as Web server. CPU predormance is usually critical.
- Mesh Topology
-
Each computer is connected to every other computer.
Most releible and most expensive. Network can have a combination of mesh and star topology. - File Server
- provides access to sever's file system allowing centralized storage of data and applications
- Bus Topolgy
-
Single linear tranmission medium (bus). Nodes tap into the bus with a drop cable.
Must have terminator on each end so the bus.
Broadcast oriented - data sent by one node is receieved by all nodes.
Must be planned carefully and are hard to trouble shoot
- Ring Topoly
-
each node is connected to 2 other nodes in a closed loop. Almost always "active".
Tings also have to be planned. A cable failure can bring down a network.