The WMA (Windows Media Audio) file format is a proprietary file format created by the Microsoft Corporation for the storage and playback of audio files. The WMA format is part of the greater Windows Media framework and actually consists of four variants to include WMA, WMA Pro, WMA Lossless, and WMA Voice. The most common …
A virtual machine is a software-based replica of a physical machine such as a computer. A virtual machine is entirely independent from any physical hardware and can only use resources that have been added to the virtual machine. There are two types of virtual machines: system virtual machines and process virtual machines. System virtual machines …
Network Load Balancing Overview Network Load Balancing (NLB), included in Windows 2000 and Windows Server 2003 can be used if you need to provide increased levels of availability for TCP/IP applications. All versions of Windows Server 2003 include NLB. While NLB is automatically installed, it is not enabled. In a NLB cluster, client requests are …
ARP is the Address Resolution Protocol. The ARP protocol maps addresses between the Data Link Layer and the Network Layer of the OSI Model. The Data Link layer of TCP/IP networks utilizes MAC addresses; the Network Layer of TCP/IP networks utilizes IP addresses. ARP and RARP The ARP protocol is used to map IP addresses …
Although there are a wide variety of places to rent movies online for a fee, when it comes to watching movies online for free, most people assume that it can only be done illegally (such as watching copyrighted content that has been uploaded to YouTube or downloading a movie through a file-sharing program). However, although …
Using Firewalls To Prevent Unauthorized Access The method, by which you can physically secure the network, is through the usage of firewalls. While firewalls provide some level of physical security, you should bear in mind that firewalls are just barriers which make it difficult for intruders to attack the network. Firewalls are categorized as follows: …
Photosynthesis is the process that plants, some bacteria, and some animals use to convert light energy and other sources into sugar and other essential proteins that they need to survive. This article will go over how photosynthesis works and the many different aspects of this process. We will talk about photosynthetic membranes, light reactions, solar …
A VoIP Gateway (Voice over IP Gateway) is a network device that helps to convert voice and fax calls between an IP network and Public Switched Telephone Network (PSTN) in real time. It is a high performance gateway designed for Voice over IP applications. A VoIP gateway can typically support at least two T1/E1 digital …
What is Ground Start? Ground Start or GST is a signaling technique for telephony from a terminal, or a subscriber local loop, to a telephone exchange in which a party gets a dial tone by momentarily grounding one side of a (telephone) circuit. The Ring side of a wire pair is usually the side that …
The Dynamic Host Configuration Protocol (DHCP) is a service that runs at the application layer of the TCP/IP protocol stack to dynamically assign IP addresses to DHCP clients, and to allocate TCP/IP configuration information to DHCP clients. This includes subnet mask information, default gateway IP addresses, DNS IP addresses, and WINS IP addresses. The DHCP …