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Latency is one important part of a larger issue in networking called quality of service or QoS which measures how long it takes for data to travel across a network.characteristics of how data is transmitted between devices . Bandwidth Reservation: The…
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This picture is the best of all from tcpipguide.com and am posting it because it as the most detail visual information : again tcpipguide.com is one of the best ressource out there for networking ressources . A protocol data unit…
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Connection-Oriented Protocols: A logical connection most be established between two devices before transferring data through a set of rules from start to end of connection . Example : Transmission Control Protocol (TCP) Connectionless Protocols: They do not establish any connection between devices , data is…
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Circuit Switching In a Circuit Switching network , a circuits need to be establish before 2 devices can communicate . Packet Switching In a packet switching network data is process by breaking into small pieces of packets , send them one…
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Protocols are a set of rules governing communication between devices and systems . There is different use of the term protocols and can get confusing : Protocol Suite or Stacks ( Layers ) are a collection of Protocols.
Had an interview and it didn’t go as i expected ….and i will take it as a good experience to prepare the next one better ! after 20 years without any interview ! i realize that ! it is good…
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There are different types of UTP cable categories , and the numbers refer to their revision . CAT1 is for telephone and doesnt support network traffic . The wire isn’t twisted . It is use by phone companies for ISDN….
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In the 70’s Xerox DEC and Intel standardize the Ethernet system. Call “DIX” standard a 10 mbps system ( 10 million 1s and 0s ) using coax cable 10base5 10 for the speed “Base” stand for Baseband and 5 for…
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When a host receive a packets it will try to match it 1st with the mac addresses and if it doesnt know the mac address it will drop it unless the mac address is FF:FF:FF:FF:FF:FF Because they will reconize it…
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Multicast are use to address a number of hosts on a network (one-to-many or many-to-many distribution). Group communication may either be application layer multicast or network assisted multicast, where the latter makes it possible for the source to efficiently send to…
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