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How two adjacent layers communicate in a layered network? (or What do you mean by Service Access Point?)
In layered network, each layer has lots of entities and entities of layer 1 gives service to the entities of layer i+1. The services can be accessed by service access point (SAP), which has some address by which the layer i+1 will access the services given by layer.
Enumerate about the Star networks Comments: 1 - If one connection/station fails the other devices aren't affected 2 - If central hub breaks down, the whole network fail
Describe the main factors of switching delay No. The speed of propagation is 200,000 km/sec or 200 meters/µsec. In 10 µsec signal travels 2 km. Therefore, each switch adds equi
In multiprocessing, various processors have to to communicate with each other. Therefore, synchronisation is needed between them. The correctness and performance of parallel execut
List the advantages of ARCNet. Here are some of the ARCNet's benefits: 1. It is extremely reliable. 2. ARCNet is simple to install and troubleshoot. 3. It has an exce
Describe some common threats to the hardware Theft of a computer, printer, or other resources. Tampering by a disinterested or frustrated employee who takes every chan
What is the difference among TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) permits a local host to get files from a remote host but does n
Describe Circuit switching, Packet switching and Virtual Circuit Packet switching. Explain their suitability for different applications such as telephone and internet. Packet S
What are the drawbacks of Ethernet Cabling? The Ethernet cabling ahs the following drawbacks: 1. Ethernet is not a high-level performer in high-load environments. This proto
Linked List A linked list is a data structure composed of zero or extra nodes linked by pointers. Each node consists of two parts, as shown in Figure: info field having specifi
What is LRC? In LRC, a block of bits is separated into rows and a redundant row of bits is added to the whole block. It can detect burst errors. If two bits in one data unit ar
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