Network servers and TOPOLOGY
0 likes265 views
The document outlines servers as powerful computers that facilitate data sharing over networks and details various types including file, printer, application, message, and database servers. It also describes different network topologies such as bus, star, ring, mesh, tree, and hybrid, illustrating their configurations and uses in networking. Each topology has distinct characteristics that affect network performance and scalability.
Network servers and TOPOLOGY
- 1. NETWORK SERVERS & TOPOLOGY
- 2. Contents Server Typesof servers. NetworkTopologies.
- 3. SERVERS A powerful specialized computer that facilities the sharing of data, software and hardware resources e.g. printers, modems etc. on the network are termed as servers. Server provides recourses to the client when request is generated. Combination of one or more powerful processors. Easy to maintain security by granting limited accessing permissions.
- 5. TYPES OF SERVERS File server: It provide the services for storing, retrieving and moving the data. A user can read, write, exchange and manage the files with the help of it. Printer server: It is used for controlling and managing printing and fax service on the network. Application server: It helps in sharing expensive software and additional computing power in a network. Message server: It is used to co-ordinate the interaction between users, documents and applications. The data can be used in the form of audio, video, binary, text or graphics. Database server: It is a type of application server. It allows the user to access the centralised strong database.
- 6. NETWORK TOPOLOGY Topology defines the geographical ,physical, or logical arrangement of computer networking devices. NETWORK TOPOLOGY BUS STAR RING MESH TREE HYBRID
- 7. BUS TOPOLOGY All computers and devices connected to central cable or bus. Consists of a main run of cable with a terminator at each end. Popular on LANs because they are inexpensive and easy to install.
- 8. STAR TOPOLOGY All devices connect to a central device, called hub. All data transferred from one computer to another passes through hub. Easy to add new terminal.
- 9. RING TOPOLOGY Cable forms closed ring or loop, with all computers and devices arranged along ring. Data travels from device to device around entire ring, in one direction. Primarily is used for LANs, but also is used in WANs.
- 10. MESH TOPOLOGY Each computer and device are connected with each other by separate cable. Topology can handle a large volume of traffic. Used in Wireless networks. If one cable fail data always has alternative path to get to its destination.
- 11. TREE TOPOLOGY It is a network setup consists of a group of star-figured workstations connected to a linear bus backbone cable. Failure of cable cause lose to the sub-network only other rest of the network works normally. Expansion of network is easy but maintenance is difficult.
- 12. HYBRID TOPOLOGY It is combination of two or more networks topologies. Individual networks could be star , bus, ring or even mesh but star and ring topologies are used mostly. Existing networks can be connected with required hardware. Easy to implement, maintain as well scale up.