PGR Spot

What is Data-Link Layer Layer 2 of OSI Model The unit used here is Frames Layer 2 is where the Ethernet frame lives Data Link layer has two sub-layers LLC – Logical Link Control MAC – Media Access Control The logical link control layer is to detect error correction. W…

When two computers want to communicate via TCP, they should have to form a 3-way handshake. Now lets see how it forms 3-way handshake. Consider 2 computers, Computer A and Computer B, wants to set up a 3-way handshake connection. First Computer A sends a SYN bit, with …

What is Transport Layer ?  Layer 4 Protocol of OSI Model. It mainly uses TCP and UDP Protocol Transport Layer Protocol is necessary for setting up a connection for sending data between computers. What is UDP ? User Datagram Protocol UDP is a unreliable Protocol. UDP is…

What is Network Layer ? Network layer is the Layer 3 of the OSI Model. Network Layer is the Layer where the IP Address Lives. IP (Internet Protocol) determines where we are going to send packets to by looking at the destination IP address. How we determine where to sen…

OSI Model - Open Systems Interconnection model When two device want to communicate, there is certain process or layout fro data transmission, This Process is said to be as OSI Model. OSI Model is represented in terms of Layers Layer 1 (Physical) - It deals with Physic…