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Pertinence de Cisco en 2025

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Possibilité de gagner 500 000 $ par an en cybersécurité

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VLAN hopping

VLAN hopping is a computer security exploit, a method of attacking networked resources on a virtual LAN (VLAN).

The basic concept behind all VLAN hopping attacks is for an attacking host on a VLAN to gain access to traffic on other VLANs that would normally not be accessible.

There are... En savoir plus

The Four Types of Network Cables

Different types of network cables, such as coaxial cable, optical fiber cable, and twisted pair cables, are used depending on the network's topology, protocol, and size.

Electrical connections using twisted pair or coaxial cable are used within a building.

Optical fiber cable is used for long distances or for applications... En savoir plus

Differences Between Cat5e, Cat6, Cat6A, and Cat7

Cat5e, or Category 5e, is popular for many home and office setups. It's known for its affordability and decent performance. Cat5e cables can support data speeds of up to 1,000 Mbps (or 1 Gbps) and are suitable for most everyday internet tasks like web browsing, streaming, and online gaming. However,... En savoir plus

TIA EIA 568

Эти стандарты наиболее известны по двум таблицам T568A и T568B, которые описывают соединение проводников кабеля типа витая пара (англ. twisted pair) с контактами разъёмов 8P8C (часто ошибочно называемыми RJ-45) при организации сети Ethernet.

EIA/TIA-568BНомерЦвет провода 1бело-оранжевый 2оранжевый 3бело-зеленый 4синий 5бело-синий 6зеленый 7бело-коричневый 8коричневый EIA/TIA-568AНомерЦвет провода 1бело-зеленый 2зеленый...
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