Local Area Network

VNC stands for Virtual Network Computing. It is a graphics based system that allows computers to communicate with each other over a 'virtual' network. This means people can access their work computers at home, or their home computers at work.

DHCP Stands for Dynamic Host Configuration Protocol. A Computer network protocol also known as Client/Server protocol.

The DHCP automatically provides an IP address and other related configuration information such as the subnet mask and default gateway.

There are couple solutions. One of them is just to buy a powerful router ($100 and more range) and good wireless cards. Another solution is more complicated and it's based on so called "bridge". To create a bridge you need to have two routers (it's highly recommended to use the same brand and model) supporting bridge technology and of course wireless routers or lan cables to connect computers inside of the houses to routers.

First solution is cheaper but has shorter range. Second is more expensive but has longer range.

In this type of switching, the entire frame is read and stored in memory before being sent to the destination device. The switch checks the integrity of the bits in the frame by recalculating the cyclic redundancy check (CRC) value. If the calculated CRC value is the same as the CRC field value in the frame, the switch forwards the frame out the destination port. The switch does not forward frames if the CRC values do not match. The CRC value is located within the frame check sequence (FCS) field of an Ethernet frame.

Although this method keeps damaged frames from being switched to other network segments, it introduces the highest amount of latency. Due to the latency incurred by the store and forward method, it is typically only used in environments where errors are likely to occur, such as environments that have a high probability of EMI.

token passing

LAN speeds are measured in units of millions of bits per second (mbps) or billions of bits per second (gbps)

If something is informal, it does not have set rules.

Basic Service Set. ( BSS )

255.255.255.0 is subnet mask and 120.12.10.13 is ip address.

In some way, shape, or form, every device on a network needs an address, regardless of the OSI layer being used. Otherwise there is no way to deliver a frame to the correct device.

manning means a god or it is what it says

For identification.

If 2 networks suddenly had the same IP address, information might bedelivered to the wrong one of them.

A subnet is a shortened term for a sub-network. It is part of the Internet Protocol, or IP services used in computer technology. It is an integral part of the system, and it has been around since even before the World Wide Web.

Most operating systems have a methodology for determining the host name of a client. On the command line, the command is usually 'hostname', for both Windows and Unix/Linux.

From the GUI Windows perspective, looking at the System or Computer properties will reveal the hostname.

Linear bus topology

it so about there are go

kbps:-Kilo Bytes Per Second

Router having maximum bandwidth in network. and in network fiberoptic cable having max bandwidth for data travaling

1) Man-in-the-middle

2) TCP/IP hijacking

An ad-hoc network is a wireless network in which all connections are wireless. The only devices required are wireless network interface cards in all of the devices that want to participate in the network.

if the LAN is connected to another LAN over a wide distance using point to point links then it becomes part of the WAN (but it doesn't become a WAN by itself).

found it!!

ok, for anyone who needs the answer..

"you configure CFP by a two-step process. Go to Security/Tasks/Add a Zone; give it a name and define the IP range (or go with the default, which is the entire subnet). Then go to Security/Tasks/Define a New Trusted Network; use the Zone you just created. This will put two rules at the top of Network Monitor; the first will Allow IP Out from Any to Zone, and the 2nd will Allow IP In from Zone to Any - this allows unencumbered communication across your LAN."

router

Extranet is wan