A device that transfers data between computer networks.

A router is a communications device that connects multiple computers or other routers together and transmits data to its correct desti- nation on the network. A router can be used on any size of network.

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Is a formal description of a set of rules and conventions that govern how devices on a network communicate?
What is the exchange of data between two devices?
How is data transferred over a network?
What kind of protocol is Fiber distributed data interface?
Which is a protocol used in a computer network?
Networking and Communicatio(Reviewed Version)

Is a formal description of a set of rules and conventions that govern how devices on a network communicate?

All devices speak the same language or protocol, which is the formal description of a set of rules and conventions that govern how devices on a network exchange information.

Is a set of rules that governs the communication between computers on a network?

A protocol is a set of rules that governs the communications between computers on a network.

What is a set of rules in which data is transferred around a network?

A network protocol is a set of established rules that dictate how to format, transmit and receive data so that computer network devices — from servers and routers to endpoints — can communicate, regardless of the differences in their underlying infrastructures, designs or standards.

What is the exchange of data between two devices?

Data communications are the exchange of data between two devices via some form of transmission medium such as a wire cable. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of hardware (physical equipment) and software (programs).

How is data transferred over a network?

The Internet works by chopping data into chunks called packets. Each packet then moves through the network in a series of hops. Each packet hops to a local Internet service provider (ISP), a company that offers access to the network – usually for a fee.

Is a set of convention and rules set for?

Answer: Simply, a protocol is a set of rules. Network protocols are formal standards and policies made up of rules, procedures and formats that defines communication between two or more devices over a network. They define rules and conventions for communication.

Is a set of format and governing rules for packets?

Explanation: In communications, a protocol refers to a set of rules and regulations that allow a network of nodes to transmit and receive information. Each layer in the network model has a protocol set, for example, the transport layer has TCP and UDP protocols.

What set of rules that governs data communication?

Answer: A set of rules that governs data communication is called a protocol. The protocol is a set of rules regulating communication. In communication, the basic components are a sender, a receiver, and a mechanism by which the message is transmitted to the receiver from the sender.

Are rules that govern a communication exchange *?

Protocol the term used for set of rules that governs data communication.

A communications protocol defines the rules for sending blocks of data (each known as a Protocol Data Unit (PDU)) from one node in a network to another node.

Which of the following is a set of rules for transferring data?

protocol, in computer science, a set of rules or procedures for transmitting data between electronic devices, such as computers.

What is a set of rules for exchanging messages?

A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. Communicating systems use well-defined formats for exchanging various messages.

What kind of protocol is Fiber distributed data interface?

Fiber Distributed Data Interface (FDDI) is a network protocol that is used primarily to interconnect two or more local area networks, often over vast distances. The access method used by FDDI involves token-passing.

Which is a protocol used in a computer network?

The Ethernet protocol is by far widely used. Ethernet uses an access method called CSMA/CD (Carrier Sense Multiple Access/Collision Detection). It is a system where each computer listens to the cable before sending anything through the network. If the network is clear, the computer will transmit.

When do separate pieces of a message travel on the same network?

The separate pieces of each message need not travel the same pathway across the network from source to destination. If a particular path becomes congested with data traffic or fails, individual pieces of the message can still be directed to the destination using alternate pathways.

What is the role of intermediary devices in a network?

The management of data as it flows through the network is also a role of the intermediary devices. These devices use the destination host address, in conjunction with information about the network interconnections, to determine the path that messages should take through the network.

What is Networking and Communication?

Data communications refers to the transmission of this digital data between two or more computers and a computer network or data network is a telecommunications network that allows computers to exchange data. The physical connection between networked computing devices is established using either cable media or wireless media. The best-known computer network is the Internet.

What are the types of Computer Networks?

In computer networks, the data is passed in the form of packets. The devices that transmit or receive this data, such as a phone or a computer, are referred to as nodes. There are three main types of networks:

1. Local Area Network (LAN): It is usually a small network that is restricted to a small geographic area. A computer network available only to the residents of a building can be called a LAN.

2. Wide Area Network (WAN): As the name implies, these networks cover a broad range of geographic area. WANs are used to connect LANs and other types of networks together so that users and computers can communicate with computers in other regions. An example of a WAN is the much-used and loved, Internet.

3. Metropolitan Area Network (MAN): MAN is a network that connects the users with computer resources in a geographic area that is larger than LAN but not quite as large as WAN.

What are the basic components of Computer Networks?

1.Servers - Servers are computers that hold shared files, programs, and the network operating system. Servers provide access to network resources to all the users of the network. There are many different kinds of servers, and one server can provide several functions. For example, there are file servers, print servers, mail servers, communication servers, database servers, print servers, fax servers and web servers, to name a few.

2.Clients - Clients are computers that access and use the network and shared network resources. Client computers are basically the customers(users) of the network, as they request and receive services from the servers.

3.Transmission Media - Transmission media are the facilities used to interconnect computers in a network, such as twisted-pair wire, coaxial cable, and optical fiber cable. Transmission media are sometimes called channels, links or lines.

4.Shared data - Shared data are data that file servers provide to clients such as data files, printer access programs and e-mail.

5.Shared printers and other peripherals - Shared printers and peripherals are hardware resources provided to the users of the network by servers. Resources provided include data files, printers, software, or any other items used by clients on the network.

6.Network Interface Card - Each computer in a network has a special expansion card called a network interface card (NIC). The NIC prepares(formats) and sends data, receives data, and controls data flow between the computer and the network. On the transmit side, the NIC passes frames of data on to the physical layer, which transmits the data to the physical link. On the receiver's side, the NIC processes bits received from the physical layer and processes the message based on its contents.

7.Local Operating System - A local operating system allows personal computers to access files, print to a local printer, and have and use one or more disk and CD drives that are located on the computer.

8.Network Operating System - The network operating system is a program that runs on computers and servers, and allows the computers to communicate over the network.

9.Hub - Hub is a device that splits a network connection into multiple computers. It is like a distribution center. When a computer request information from a network or a specific computer, it sends the request to the hub through a cable. The hub will receive the request and transmit it to the entire network. Each computer in the network should then figure out whether the broadcast data is for them or not.

10.Switch - Switch is a telecommunication device grouped as one of computer network components. It uses physical device addresses in each incoming messages so that it can deliver the message to the right destination or port.

Useful Links:

1-Wikiversity

2-Webopedia

3-Wikipedia

Questions:

1-What is the difference between switch and hub?

2-How Is it possible to change the computer’s IP address using some software ?

3- Can we change from one of computer network type to another?

Networking and Communicatio(Reviewed Version)

What is Networking and Communication?

Data communication refers to the transmission of the digital data between two or more computers The physical connection between networked computing devices is established using either cable media or wireless media. The best-known computer network is the Internet.

What are the types of Computer Networks?

In computer networks, the data is passed in the form of packets . Everything you do on the Internet involves packets. For example, every Web page that you receive comes as a series of packets, and every e-mail you send leaves as a series of packets. The devices that transmit or receive this data, such as a phone or a computer, are referred to as nodes. There are three main types of networks:

1. Local Area Network (LAN): It is usually a small network that is restricted to a small geographic area. For instance, a computer network available only to the residents of a building can be called a LAN.

3. Metropolitan Area Network (MAN): MAN is a network that connects the users with computer resources in a geographic area that is larger than LAN but not quite as large as WAN.

What are the basic components of Computer Networks?

3.Transmission Media - Transmission media are the facilities used to interconnect computers in a network. Transmission media are sometimes called channels, links or lines.