Local Area Network

Functional Components of Computer System are Input unit Output Unit Central Processing Unit and Mani Mmeory

network discovery

Routing protocols are used by routers (RIP, EIGRP, OSPF)

Routed protocols are the actual protocols on the wire (TCP/IP)

1) take a crimping tool:

http://images.google.ge/images?hl=ka&source=hp&q=crimping%20tool&um=1&ie=UTF-8&sa=N&tab=wi

2) make straight through cable put colors exactly:

http://www.palmettonetworks.com/resources/network_cables_101_data.htm

and you are ready

It is known as a server.

In OSPF, interfaces can be assigned to different areas. Many

times, a router will be routing inside of a major network, but different interfaces

will belong to different areas. You need the level of control given by wildcard

masks to assign different interfaces to their appropriate areas, and not restrict

an entire major network to be in one area.

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If we are sending a file in one go and if some error occurred in between the file transfer then the complete file has to be resend which wastes the bandwidth so to prevent this, the file to send is divided in to smaller unit which we call packet, and then send packets 1 by one so that if a packet is lost then we need to send only that particular packet not the complete file. As the packet reaches its destination, the destination source send acknowledgement to the sender that the packet has reached to it and it may send the next packet and if packet somehow lost before reaching to the destination source, then the sender itself resends the packet after a fixed amount of time.

Nothing in particular. Remember, 127.0.0.1 (localhost) is assigned to an internal pseudo-NIC called a "loopback device." 1,2, or a hundred more network cards are just bound to additional addresses and respond to requests made on them.

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A packet does not have a limit of 63 characters - depending on the protocol it may have a total size of 1508 and beyond; the actual data is somewhat smaller but not limited to 63 characters.

For Ethernet frames, 64 characters is closer to the minimum size for data.

Transport layer

Its cam table..

When sending information over a local area network, to a specific computer, the MAC address of the destination must be known. ARP - the address resolution protocol - takes care of that. With it, you can ask for the MAC address that corresponds to a specific IP address.

Cat5 is rated for 10Mbit operation.

Cat5e rated for 100Mbit, and Cat6 rated for 1000Mbit

DSL, Cable modems, wireless internet and satellite internet.

for better performance by using timers instead of duplicate acknowledgements

A broadcast packet is sent and received by all systems on a LAN; it can contain any kind of data. The more broadcasting that a LAN does, the slower it will be overall since every device has to read the packet.

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A class C network.

Fifteen years ago

Crossover is Host-to-Host

Straight through is Host-to-Client

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abay yar

In a packet-switched data network, what is used to reassemble the packets in the correct order at the destination device?