NETWORKING COURSE PDF

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archive of html files, cepcosojurre.cf format, and in other formats as may prove useful . Of course, non-traditional networks courses may focus on a quite. Saylor URL: cepcosojurre.cf . contains all the material for a one-semester first upper undergraduate or a graduate networking course. In this chapter, you'll begin by relating networks to situations and concepts . If you put the limited-access material in a drawer open to all employees, how do.


Networking Course Pdf

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Describe the functionality of LAN, MAN, and WAN networks. • Identify A network refers to two or more connected computers that . Kevlar Reinforcing Material. Here you will get the material for computer IT and Network related courses and tutorials. The materials for which you will get the PDF, DOC, PPT, RAR and ZIP. Download free Basic Networking Tutorial course material and training (PDF ebook on 21 pages).

However, the size and speed of the server's processor s , hard drive, and main memory might add dramatically to the cost of the system. On the other hand, a workstation might not need as much storage or working memory, but might require an expensive display to accommodate the needs of its user.

Every computer on a network should be appropriately configured for its use.

On a single LAN, computers and servers may be connected by cables or wirelessly. Wireless access to a wired network is made possible by wireless access points WAPs. These WAP devices provide a bridge between computers and networks.

A typical WAP might have the theoretical capacity to connect hundreds or even thousands of wireless users to a network, although practical capacity might be far less. Nearly always servers will be connected by cables to the network, because the cable connections remain the fastest. Workstations which are stationary desktops are also usually connected by a cable to the network, although the cost of wireless adapters has dropped to the point that, when installing workstations in an existing facility with inadequate wiring, it can be easier and less expensive to use wireless for a desktop.

See the Topology , Cabling , and Hardware sections of this tutorial for more information on the configuration of a LAN. Dedicated transoceanic cabling or satellite uplinks may be used to connect this type of global network.

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Using a WAN, schools in Florida can communicate with places like Tokyo in a matter of seconds, without paying enormous phone bills. Two users a half-world apart with workstations equipped with microphones and a webcams might teleconference in real time. A WAN is complicated. It uses multiplexers, bridges, and routers to connect local and metropolitan networks to global communications networks like the Internet.

Advantages of Installing a School Network User access control. Modern networks almost always have one or more servers which allows centralized management for users and for network resources to which they have access. User credentials on a privately-owned and operated network may be as simple as a user name and password, but with ever-increasing attention to computing security issues, these servers are critical to ensuring that sensitive information is only available to authorized users.

Information storing and sharing. Computers allow users to create and manipulate information. Information takes on a life of its own on a network. The network provides both a place to store the information and mechanisms to share that information with other network users.

Administrators, instructors, and even students and guests can be connected using the campus network. The school can provide services, such as registration, school directories, course schedules, access to research, and email accounts, and many others. Remember, network services are generally provided by servers.

The school can provide network users with access to the internet, via an internet gateway. Computing resources. The school can provide access to special purpose computing devices which individual users would not normally own. For example, a school network might have high-speed high quality printers strategically located around a campus for instructor or student use. Flexible Access. School networks allow students to access their information from connected devices throughout the school.

The Network layer is responsible for data routing, packet switching and control of network congestion. Routers operate under this layer. Network topology dictates what media you must use to interconnect devices.

It also serves as basis on what materials, connector and terminations that is applicable for the setup.

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RIP, short for Routing Information Protocol is used by routers to send data from one network to another. It efficiently manages routing data by broadcasting its routing table to all other routers within the network. It determines the network distance in units of hops. There are several ways to do this. Install reliable and updated anti-virus program on all computers. Make sure firewalls are setup and configured properly.

User authentication will also help a lot. All of these combined would make a highly secured network. This is a peripheral card that is attached to a PC in order to connect to a network.

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It is an interconnection of computers and devices that are geographically dispersed. It connects networks that are located in different regions and countries. The physical layer does the conversion from data bits to electrical signal, and vice versa. This is where network devices and cable types are considered and setup. Proxy servers primarily prevent external users who identifying the IP addresses of an internal network. Without knowledge of the correct IP address, even the physical location of the network cannot be identified.

Proxy servers can make a network virtually invisible to external users. This layer provides the protocols and means for two devices on the network to communicate with each other by holding a session. This includes setting up the session, managing information exchange during the session, and tear-down process upon termination of the session. Are there limitations?

A fault tolerance system ensures continuous data availability. This is done by eliminating a single point of failure.

However, this type of system would not be able to protect data in some cases, such as in accidental deletions. The 10 refers to the data transfer rate, in this case is 10Mbps.

The word Base refers to base band, as oppose to broad band. T means twisted pair, which is the cable used for that network. Private IP addresses are assigned for use on intranets.

These addresses are used for internal networks and are not routable on external public networks.

These ensures that no conflicts are present among internal networks while at the same time the same range of private IP addresses are reusable for multiple intranets since they do not "see" each other.

NOS, or Network Operating System, is specialized software whose main task is to provide network connectivity to a computer in order for it to be able to communicate with other computers and connected devices.

DoS, or Denial-of-Service attack, is an attempt to prevent users from being able to access the internet or any other network services. Such attacks may come in different forms and are done by a group of perpetuators. One common method of doing this is to overload the system server so it cannot anymore process legitimate traffic and will be forced to reset. It is made up of 7 layers, with each layer defining a particular aspect on how network devices connect and communicate with one another.

One layer may deal with the physical media used, while another layer dictates how data is actually transmitted across the network.

The main purpose of this is to prevent crosstalk. Crosstalks are electromagnetic interferences or noise that can affect data being transmitted across cables.

By using address translation instead of routing, address sharing provides an inherent security benefit. That's because host PCs on the Internet can only see the public IP address of the external interface on the computer that provides address translation and not the private IP addresses on the internal network. It is also known as physical address or Ethernet address.

A MAC address is made up of 6-byte parts. If the first octet begins with a 0 bit, that address is Class A. If it begins with bits 10 then that address is a Class B address. If it begins with , then it's a Class C network. OSPF, or Open Shortest Path First, is a link-state routing protocol that uses routing tables to determine the best possible path for data exchange.

Firewalls serve to protect an internal network from external attacks.

These external threats can be hackers who want to steal data or computer viruses that can wipe out data in an instant. It also prevents other users from external networks from gaining access to the private network.

This is one of the easiest to setup and maintain. Gateways provide connectivity between two or more network segments.It determines the network distance in units of hops. The query is basically:. This gives a network number of It also prevents other users from external networks from gaining access to the private network.

Rgds Steve. The number of host IDs per network ID is 2 raised to 8 minus 2, or