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Jun 12, 2022 · You'll find definitions for common terms and more specific jargon that you're likely to encounter as you delve deeper into the world of networking. From AES to WPA, this glossary will become your trusty go-to guide.
- Adrian Nita
- Author
- Osi Layer 1
- Osi Layer 2
- Osi Layer 3
- Osi Layer 4
- Osi Layer 5
- Osi Layer 6
- Osi Layer 7
Layer 1 is the physical layer. There’s a lot of technology in Layer 1 - everything from physical network devices, cabling, to how the cables hook up to the devices. Plus if we don’t need cables, what the signal type and transmission methods are (for example, wireless broadband). Instead of listing every type of technology in Layer 1, I’ve created b...
Layer 2 is the data link layer. Layer 2 defines how data is formatted for transmission, how much data can flow between nodes, for how long, and what to do when errors are detected in this flow. In more official tech terms: 1. Line discipline.Who should talk for how long? How long should nodes be able to transit information for? 2. Flow control.How ...
Layer 3 is the network layer. This is where we send information between and acrossnetworks through the use of routers. Instead of just node-to-node communication, we can now do network-to-network communication. Routers are the workhorse of Layer 3 - we couldn’t have Layer 3 without them. They move data packets across multiple networks. Not only do ...
Layer 4 is the transport layer. This where we dive into the nitty gritty specifics of the connection between two nodes and how information is transmitted between them. It builds on the functions of Layer 2 - line discipline, flow control, and error control. This layer is also responsible for data packet segmentation, or how data packets are broken ...
Layer 5 is the session layer. This layer establishes, maintains, and terminates sessions. A session is a mutually agreed upon connection that is established between two network applications. Not two nodes! Nope, we’ve moved on from nodes. They were soLayer 4. Just kidding, we still have nodes, but Layer 5 doesn’t need to retain the concept of a nod...
Layer 6 is the presentation layer. This layer is responsible for data formatting, such as character encoding and conversions, and data encryption. The operating system that hosts the end-user application is typically involved in Layer 6 processes. This functionality is not always implemented in a network protocol. Layer 6 makes sure that end-user a...
Layer 7 is the application layer. True to its name, this is the layer that is ultimately responsible for supporting services used by end-user applications. Applications include software programs that are installed on the operating system, like Internet browsers (for example, Firefox) or word processing programs (for example, Microsoft Word). Applic...
This paper proposes a topology for local computer networks. Called "Dragnet", it is similar to the Ethernet network in function, but rather different in the following respects:1. Instead of a single long bidirectional cable, there are multiple short unidirectional cables.2.
A standard form of cross-collateralization clause found in a loan agreement or security agreement in some consumer and corporate loan transactions. This Standard Clause has integrated notes with important explanations and drafting and negotiating tips.
Oct 4, 2022 · We will discuss terminology, common protocols, and the responsibilities and characteristics of the different layers of networking. This guide is operating system agnostic, but should be very helpful when implementing features and services that utilize networking on your server.
Jun 16, 2014 · Computer networking is filled with jargon that isn't self-explanatory. Here's a quick overview of many of the terms you'll see when you glance at the network status information on any device. We're definitely simplifying things a bit here -- this isn't an in-depth look at any one term.
Aug 9, 2013 · These reports are particularly alarming in light of government officials' emphatic public statements denying that the NSA ever peeks inside the contents of Americans' communications without a warrant. We've explained why those disavowals have been misleading; now, we know they're simply untrue.
