Some Basic Beginners Concept with CCNA Training in Chandigarh

Some Basic Beginners Concept with CCNA Training in Chandigarh 

What is network?

Network is simply known as something that connects other things together for a specific purpose. The term network is used in a variety of content, including telephone, television, computer, or even people networks. A computer network connects one or more than one device at same time  to share a nearly unlimited range of information and services, including:

• Documents
• Email and messaging
• Websites
• Databases
• Music
• Printers and faxes
• Telephony and videoconferencing

Protocols:-

Protocols are rules that control how devices communicate and share information across a network. Examples of protocols include:

• IP - Internet Protocol
• HTTP - Hypertext Transfer Protocol
• SMTP - Simple Mail Transfer Protocol

Multiple protocols often work together to facilitate end-to-end network communication, forming protocol suites or stages. Protocols are covered in great detail in other guides. Network reference models were developed to allow products from different manufacturers to intemperate on a network. A network reference model serves as a blueprint, reveal standards for how protocol communication should occur. The Open Systems Interconnect  and Department of Defense models are the widely recognized reference models. Both are covered in great detail in another guide.To learn more about CCNA join CCNA Training in Chandigarh

Basic Network Types are often defined by function . The three most common categories of networks are:

• LAN  (Local Area Networks)
• WAN (Wide Area Networks)
• MAN (Metropolitan Area Network)

LAN:- LAN is generally a high-speed network that covers a small area, usually contained within a single building or campus. A LAN is usually under the departmental control of a single organization.Ethernet is the most common LAN technology.

WAN:-  WAN is a network that spans large geographical areas, usually to connect multiple LANs. This is a general definition, and not always accurate. A more practical definition of a WAN is a network that traverses a public or commercial carrier, using one of several WAN technologies.A WAN is often under the departmental control of several organizations and does not necessarily need to span large geographical distances.

MAN:-  MAN stands for Metropolitan Area Network is another category of network, though the term is not generally used. A MAN is defined as a network that connects LAN across a city wide area network.An internetwork is a general term describing multiple networks connected together. The Internet is the largest and most well known network.Some networks are categorized by their function, as opposed to their size.

SAN:-  SAN stands for Storage Area Network that provides systems with good speed, lossless access to high-capacity storage devices.

VPN :-  VPN stands for Virtual Private Network allows for information to be safely sent across a public or not a secure network, such as the Internet. Common use of a VPN is to connect branch offices or remote users to a main office.

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