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What Automatic Repeat Request (ARQ)?
Error control is both error detection and error correction. It allows the receiver to inform the sender of any frames lost or damaged in transmission and coordinates the retransmission of those frames by the sender. In the data link layer, the term error control refers primarily to methods of error detection and retransmission. Error control in the data link layer is often executed simply: Any time an error is detected in an exchange, specified frames are retransmitted. This process is called as automatic repeat request (ARQ).
discuss the concept of redundancy in error detection and correction
use of go back n protocal
What is Unacknowledged connectionless service This service is a datagram-style service. It is a very simple service that does not involve any of the flow- and error-control mec
What is routing region? When hierarchical routing is used, the routers are separated into what we call regions, with each router knowing all the details about how to route pack
How SPF algorithm does the route determination?
master construct #include extern float average(float,float,float); void master_construct ( float* x, float* xold, int n, float tol ) { int c, i, toobig; floa
Explain is the concept of routing tables?
Describe in proper details about OSI Model ? Explain the functions and protocols and services of each layer ?
DNS ID hacking The Dns use ID system in order to keep track of each every request and replies. In order to spoof the DNS’s response, the hacker needs to do ID Hacking. In orde
What is a binary semaphore? What is its use? A binary semaphore is takes only 0 and 1 as values. They are used to execute mutual exclusion and synchronize concurrent p
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