Network & Security Articles

Data-Link Layer

This is the second layer from the bottom of the OSI model. It is considered the most complicated layer which has complex functions and responsibilities. The hardware of the data link layer is hidden and displayed to the upper layers of the OSI model as a medium for...
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Carrier Sense Multiple Access/Collision Detection

Carrier Sense Multiple Access/Collision Detection is used in previous Ethernet technology or LANs in which the connection was in a Bus topology using coaxial cables. At present CSMA/CD is not often used since the Ethernet connections are in Full Duplex and use either...
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OSI Model

OSI also known as Open System Interconnection was the first standard model for networking used by telecommunication companies in the early 1980s. It explains the seven layers that computer systems use to communicate over a network. The layers assist network...
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Types of Computer Networks

A computer network is an interconnected two or more computers and devices that share their data, resources, and application. Computer networks are divided into four types based on their size and functions such as LAN, MAN, PAN, and WAN. LAN - Local Area Network MAN -...
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Physical Layer

Physical Layer

Mar 19, 2023 |

The physical layer is the final layer from the top of the OSI model. It has the responsibility of the physical cables...

Transport Layer

Transport Layer

Mar 19, 2023 |

The transport layer is the fourth layer of the OSI model. For moving information between networked computers, the OSI...

Data-Link Layer

Data-Link Layer

Mar 19, 2023 |

This is the second layer from the bottom of the OSI model. It is considered the most complicated layer which has...

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