Computer Network Features
Features of a Computer Network A computer network has following features: Performance: Performance of a computer network is measured in terms of response time. The response time of sending and…
What is Data Transmission?
Definition Data Transmission: When we enter data into the computer via keyboard, each keyed element is encoded by the electronics within the keyboard into an equivalent binary coded pattern, using one of the…
Routing algorithm
In order to transfer the packets from source to the destination, the network layer must determine the best route through which packets can be transmitted. Whether the network layer provides…
Changes in the Standard
Standard Changes A Standard Change is a routine, low-risk, often-done change to the production environment that has been pre-approved by the full CAB and requires no further approval to enact…
Difference between 1-Persistent and Non-Persistent CSMA
1. 1-persistent CSMA :In 1-persistent CSMA, station continuously senses channel to check its state i.e., idle or busy so that it can transfer data. In case when channel is busy,…
Pure ALOHA and Slotted ALOHA
In a computer network, there is a need for access to the common shared medium. Aloha protocol is for a medium access control mechanism, for shared channel or medium. For…
Point – to – Point Protocol (PPP)
Point - to - Point Protocol (PPP) is a communication protocol of the data link layer that is used to transmit multiprotocol data between two directly connected (point-to-point) computers. It…
High- level Data Link Control Protocol (HDLC)
High-level Data Link Control (HDLC) is a group of communication protocols of the data link layer for transmitting data between network points or nodes. Since it is a data link…
Selective Repeat ARQ Protocol
Go-Back-N ARQ simplifies the process at the receiver site. The receiver keeps track of only one variable, and there is no need to buffer out-of-order frames; they are simply discarded.…
Go – back – N – automatic repeat request
Go-Back-N Automatic Repeat reQuest (Go-Back-N ARQ), is a data link layer protocol that uses a sliding window method for reliable and sequential delivery of data frames. It is a case…
