In computer networks, the data between sender and receiver is transferred in small units or blocks known as packets. Each packet is transmitted separately and may take a different path to reach its destination. Once all of these packets of the original message arrive at their destination, they are reassembled to form the original message. ...
What Are Open Ports and How Do They Work? A port is a communication endpoint where all network communications begin and end. A port recognizes a specific process or service and is assigned a number based on its specialized function. Network ports allow devices to communicate with each other remotely over the internet, regulating how ...
Virtual Circuits are also known as connection-oriented switching. Virtual circuit switching establishes a predetermined path before messages are sent. In contrast, a datagram is a packet-switching technique in which each packet, known as a datagram, is treated as a separate entity. Each packet carries destination information, which the switch uses to route the packet to ...
Multiplexing is a technique that allows different analog and digital transmission streams to be handled at the same time across a shared link. Multiplexing converts a high-capacity medium into a low-capacity logical medium, subsequently shared by multiple streams. The process of combining data streams or input is called Multiplexing, and the hardware used for multiplexing ...
A wireless ad hoc network (WANET) or mobile ad hoc network (MANET) is a type of wireless network that is decentralized. Since it doesn’t rely on a pre-existing infrastructure, like routers in wired networks or access points in wireless networks, the network is ad hoc. Instead, each node takes part in routing by sending data ...
Have you ever seen http:// or https:// in a browser’s address bar while browsing a website? Both protocols allow a web server and a web browser to exchange data related to a specific website. What distinguishes these two, though? Well, https is secure since it has an extra s in it! The very short and ...
Some people use the words “internet” and “World Wide Web” interchangeably. They believe they are the same, although this is not the case. The difference between the Internet and WWW (World Wide Web ) is essential to understand. WWW or web is one of the key services offered by the internet. The World Wide Web, ...
A telecommunications network is a collection of nodes linked together by telecommunications links that allow the nodes to exchange messages. The links may employ several technologies to transmit messages and signals based on circuit switching, message switching, or packet switching approaches. The public switched telephone network (PSTN), the Internet, computer networks, and wireless radio networks ...
Data link layer protocols are classified according to whether the transmission channel is noiseless or noisy. Noiseless is an ideal or perfect channel where no frames are lost, duplicated, or corrupted. In contrast, a noisy channel indicates that there will be a lot of disruption in the path when data is transmitted from the sender ...
A VPN (virtual private network) is a service that establishes a secure, encrypted online connection. A VPN establishes a virtual connection between your device and a distant server managed by a VPN service. This connection establishes a secure point-to-point tunnel that encodes your personal information, conceals your IP address, and enables you to bypass online ...