Network Engineer – F.O.C.U.S Follow One Course Until Successful
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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How to choose the right Routing Protocol : Scalability: how large is the network now and how could it become ? Vendor intercoperability Will you be using only one vendor or many vendors ? Staff’s knowledge Choosing the routing protocol…
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Routing occurs when a layer 3 devices makes a forwarding decision base on network address information . The role of routing in an Entreprise : Building Access: Part of the campus network that provide access to the users.Security ( authentification…
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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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The term unicast is the opposite of broadcast which means transmitting the same data to all possible destinations , it is directed to one specific host . More to come ……..
Mac addresses are physical addresses at layer 2 of the OSI model . How does it work ! Hosts on a network will listen for packets that have their MAC address in the destination field of the packet . The…
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VTP Pruning reduce the unnecessary flooded traffic by forwarding the unknown unicast frames on a VLAN over trunk links only if the receiving end of the trunk has ports in that VLAN. VTP Pruning is disabled by default and can be…
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When you put a switchport into trunking mode, it will trunk and it will try to negotiate. Dynamic auto will wait for a request to trunk, so if the other side is set to trunk, a trunk will form. If…
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