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Articles tagged with #blogswithcc
HOW CAN ATTACKER ATTACK NETWORK? 1.Network Sniffing -> Alice is talking to Bob & Eve will secretly listen their talks 2.Network Spoofing -> Eve will say to Alice that I'm Bob , and retrieve all secrets from Alice 3.DOS Attack -> I want to destroy an...
WHY WE REQUIRE LAYERING IN COMPUTER NETWORKS? It makes discussion easy It makes updating easy LAYERS OF COMPUTER NETWORKS Application layer -> Responsible for moving of good to truck Transport Layer -> Responsible for moving of good from tru...
LOSS Data loss occurs when queue is full or cache memory of router is full DELAY Due to 4 reasons we have delays Transmission delay -> (packet length)/(link transmission rate) Propogation delay -> (length of physical link)/(propogation speed) Queue...
PACKET SWITCHING Data is broken into small packets Route is decided by collection of routers by using routing algorithm Next router is decided by forwading which is done by routing table If there is traffic then data packets are stored in queue &...
COMPONENTS OF COMPUTER NETWORK NETWORK EDGE DEVICES -> iot cars,laptops,phones,etc ACCESS NETWORKS -> these connect network edge devices to outer internet.for e.g wired & wireless communication links NETWORK CORE -> These contain interconnected rou...
WHAT IS INTERNET ? Internet is collectio nof hardware & software components which execute the protocols which are necessary data communication It also a network of networks Collection of computing devices which are connected by packet switches whi...
