Physical layer.Thephysical layeris the initial layer that physically connects two interoperable systems. It controls simplex orduplexmodem transmissions and transfers data in bits. Additionally, it oversees the hardware that connects the network interface card (NIC) to the network, including the wiring...
As described above, IP is a network layer protocol responsible for routing. But it is not the only network layer protocol. IPsec: Internet Protocol Security (IPsec) sets up encrypted, authenticated IP connections over a virtual private network (VPN). Technically IPsec is not a protocol, but ra...
The Internet Protocol (IP) is one of the main protocols used at this layer, along with several other protocols for routing, testing, and encryption. Suppose Bob and Alice are connected to the same local area network (LAN), and Bob wants to send Alice a message. Because Bob is on the ...
Network Protocols: Basic Layers Network protocols are broken up into categories called layers. Discussing the various layers is beyond the scope of this lesson, but suffice it to say that the first layer is closest to the electrical components, like the network cable of a computer. The last la...
The network layer of the OSI model Protocols at the network layer While IP is the most popular and widely used protocol at the network layer today, there are plenty of other protocol examples to note. Network protocols at Layer 3 include those used for dynamic routing of networks, secure com...
A network protocol is a set of rules that dictate how information should be transferred by entities communicating with one another.
In this article, we will talk about the much-asked query of what is layer 2 network is and how its works in a typical network. We will also briefly touch on the basic concepts regarding this topic. The data link layer of the OSI model is sometimes called the MAC layer. It's ...
A network gateway is a device or node that connects disparate networks by translating communications from one protocol to another.
Application layer network protocols1. DHCP: Dynamic Host Configuration ProtocolDHCP is a communication protocol that enables network administrators to automate the assignment of IP addresses in a network. In an IP network, every device connecting to the internet requires a unique IP. DHCP lets ...
What is architecture of checkpoint? At what layer of the OSI model does IPsec operate? Which protocol is used to map IP addresses to MAC addresses? What is mesh technology? What is thin-client architecture? What is a mesh network?