Local Area Network

1. Because of attenuation, distortion, and noise. Atteniation is loss of signal power as it travels through the transmission medium. Distortion is caused by interactions between the signal and the transmission meddium. Noise can be generated internally or added through external interference.

850nm laser-optimized 50/125-micron multimode fiber

This problem doesn't really relate to a gateway, online or off-line. The address conflict occurs when two or more systems on the network have the same static address in their adaptor. IP addresses on the LAN must be unique, and if you aren't using DHCP this happens easily.

Use tracert to see where your packets are being dropped.

Yes it can and the reason is because of redundancy provides for a backup route or network connection in case of a link failure. The core hardware is typically interconnected to all distribution network hardware and the objective is to ensure that the data traffic continues for the whole network even if a core networking device or link fails.

You must extract the first 8 bits of the host address (since the subnet mask has the first 8 bits equal to 1), and set all others to zero. The answer in this case is 86.0.0.0.

You must extract the first 8 bits of the host address (since the subnet mask has the first 8 bits equal to 1), and set all others to zero. The answer in this case is 86.0.0.0.

You must extract the first 8 bits of the host address (since the subnet mask has the first 8 bits equal to 1), and set all others to zero. The answer in this case is 86.0.0.0.

You must extract the first 8 bits of the host address (since the subnet mask has the first 8 bits equal to 1), and set all others to zero. The answer in this case is 86.0.0.0.

What do you mean by "2-port ethernet switch"?

You know you can hook two computers directly to each other with a crossover cable. Furthermore, if one of the computers has automatic crossover correction, you can just use a normal cable.

Fiber optic, as far as I know.

You should be able to check how many computers are connected to your router, in the router settings. Most likely you can find it in "Status" for wireless network or for all networks. You check MAC addresses for all your computers connected to the router and compare it with those in the list. In that way you know if you have some "guests". You find out who connected to your router will be much harder and require special software and training.

PS: you can use MAC filter to block "guests".

NetBIOS

You need a VoIP modem or a computer to connect your phone and accessed your VoIP Server. Aditionally you also require an ATA adapter.

A network address is like a street address; if you want to receive your mail from the post office then the postal worker needs a way to identify where you live.

Networks are the same way; they need a way to identify each network and each device in a network to send and receive messages.

Domain Name System.

Layer 2, Data Link.

The degeneration of a signal over a distance on a network cable is called attenuation. It does not have any relation with decibels. The strength of signal just gets reduced.

the category type of the cable is usually printed on the cable itself.

full-duplex operation

collision-free environment

It's called Ring.

cat4

You can have tons of reasons for that. If other people can ping it then, you have problems with firewall, you are in a different subnet, or you are in diffrent group. If you have active directory, it's possible that administrator doesn't allow to connect to that printer. Solution for such cases usually are either simple or very comlicated. Try to check setting for a computer wich already connected to that printer (group, subnet, permissions and so on). If you are in a diffrent subnet it can be a problem, it depends on which printer you have. If it's an old model then try to find a free IP address in the same subnet with the printer. Also check firewall settings.

If nobody can connect to the printer or ping it then check cable, try to restart it...

Power over Ethernet

DHCPREQUEST

broadcast address