tcp/ip
Router
Which three pieces of information must be specified on a computer to allow that computer to send and receive information across networks? (Choose three.) IP address subnet mask closest server default gateway operating system network card manufacturer
PAC is an acronym for Porting Authorization code. It is a unique identifier which is issued by mobile and fixed-line telephone dealers to the customer so that that person can port their number across networks
A network bridge is a device which connects two parts of a network together at the data link layer (layer 2 of the OSI model).Network bridges work similarly to network switches, but the traffic is managed differently. A bridge will only send traffic from one side to the other if it is going to a destination on the other side. This is different to a layer 1 switch which sends all traffic from either side. Sometimes network bridges are called layer 2 switches.Since they need to look at the contents of the traffic going into them, they are much more complicated than a hub or repeater
You could attach an external directional antenna. Google for 'wireless antenna'.
Functionality of mobile systems across heterogeneous Networks
Any operation system that enables communication (which most of the popular OS do). Present operating systems Windows, Linux or Mac OS all supports communication across local networks and internet.
Router
Worms
Site
Wide area networks exist over many miles, across several cities, and even around the world
to regulate commerce
A virtual private network (VPN) extends a private network and the resources contained in the network across public networks like the Internet. It enables a host computer to send and receive data across shared or public networks as if it were a private network with all the functionality, security and management policies of the private network. This is done by establishing a virtual point-to-point connection through the use of dedicated connections, encryption, or a combination of the two. VPN service (eg, boxpn.com) that protect my data.
Using social networks is a good thing because it helps people keep connected across the world. And most of the social networks are free so it is open to ANYONE with internet connection...
Intrinsic factor, which is made in the stomach.
Google "VPN"
the adena had established trade networks that stretched far across the continent.