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| IP Wireless Security Motorized Camera |
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| messages to each other over media. They represent the sender and receivers. | ||
| The data they send is the message. The cabling or transmission method they | ||
| use is the medium. | ||
Connection | In networking, two devices establish a connection to communicate with each | ||
| other. | ||
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DHCP | Dynamic Host Configuration Protocol was developed by Microsoft a protocol for | ||
| assigning dynamic IP addresses to devices on a network. With dynamic | ||
| addressing, a device can have a different IP address every time it connects to | ||
| the network. In some systems, the device's IP address can even change while it | ||
| is still connected. DHCP also supports a mix of static and dynamic IP | ||
| addresses. This simplifies the task for network administrators because the | ||
| software keeps track of IP addresses rather than requiring an administrator to | ||
| manage the task. This means a new computer can be added to a network | ||
| without the hassle of manually assigning it a unique IP address. DHCP allows | ||
| the specification for the service provided by a router, gateway, or other network | ||
| device that automatically assigns an IP address to any device that requests one | ||
DNS | Domain Name System is an Internet service that translates domain names into | ||
| IP addresses. Since domain names are alphabetic, they're easier to remember. | ||
| The Internet however, is really based on IP addresses every time you use a | ||
| domain name the DNS will translate the name into the corresponding IP | ||
| address. For example, the domain name www.network_camera.com might | ||
| translate to 192.167.222.8. | ||
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Enterprise network | An enterprise network consists of collections of networks connected to each | ||
| other over a geographically dispersed area. The enterprise network serves the | ||
| needs of a widely distributed company and operates the company’s mission- | ||
| critical applications. | ||
Ethernet | The most popular LAN communication technology. There are a variety of types | ||
| of Ethernet, including 10 Mbps (traditional Ethernet), 100 Mbps (Fast Ethernet), | ||
| and 1,000 Mbps (Gigabit Ethernet). Most Ethernet networks use Category 5 | ||
| cabling to carry information, in the form of electrical signals, between devices. | ||
| Ethernet is an implementation of CSMA/CD that operates in a bus or star | ||
| topology. | ||
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Fast Ethernet | Fast Ethernet, also called | ||
| over UTP, STP, or | ||
Firewall | Firewall is considered the first line of defense in protecting private information. | ||
| For better security, data can be encrypted. A system designed to prevent | ||
| unauthorized access to or from a private network. Firewalls are frequently used | ||
| to prevent unauthorized Internet users from accessing private networks | ||
| connected to the Internet, especially Intranets all messages entering or leaving | ||
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