network programming - OSI Layers explained - Stack Overflow
Feb 1, 2017 · There are seven OSI Layers, and five in the TCP/IP reference model, which is the only network model worth learning these days: OSI is obsolete, although unfortunately this fact doesn't …
In which layer is HTTP in the OSI model? - Stack Overflow
Anyways, HTTP is an application layer protocol. The OSI model The OSI (Open Systems Interconnection) model is a conceptual model created by the International Organization for …
Difference between PACKETS and FRAMES - Stack Overflow
Jul 16, 2015 · A packet is the PDU (Protocol Data Unit) at layer 3 (network layer - ip packet) of the networking OSI model. A frame is the PDU of layer 2 (data link) of the OSI model.
Does Https actually use transport layer security - Stack Overflow
Oct 24, 2012 · HTTP operates at the highest layer of the OSI Model, the Application layer; but the security protocol operates at a lower sublayer, encrypting an HTTP message prior to transmission …
ip - Definition of Network Units: Fragment, Segment, Packet, Frame ...
I think in the TCP/IP reference model / architecture, it's Internetwork Layer not Network layer. Network layer is ISO/OSI terminology. And I think there's a "Link Layer" in the TCP/IP ref model that I don't …
OSI model - What's the presentation and session layer for?
The session layer is meant to store states between two connections, like what we use cookies for when working with web programming. The presentation layer is meant to convert between different …
At what layer in the protocol stack does DNS happen?
Feb 12, 2014 · In OSI stack terms, DNS runs in parallel to HTTP in the Application Layer (layer 7). DNS is in effect an application that is invoked to help out the HTTP application, and therefore does not sit …
Classifying USB Protocol in the OSI Model - Stack Overflow
Im having a hard time Categorizing the USB Protocol in the layers of the OSI Model model. Im guess there are 7 layers to begin with. These are the Informations i believe that corresponds to the lay...
TCP port and OSI model - Stack Overflow
Oct 12, 2018 · 6 TCP or UDP ports are defined in either layer 4 of the OSI model or layer 3 of the TCP/IP model, both are defined as the ' transport ' layer. OSI layer 5 'session layer' uses the ports …
Are we using TCP/IP or OSI in internet? - Stack Overflow
Feb 17, 2012 · The OSI model was developed by researchers. It only exists on paper. Afterwards TCP/IP was created by using the principles that were described in the OSI model. TCP/IP in it's …