A three-way-handshake is a method used in a TCP/IP network to create a connection between a local host/client and server. It is a three-step method that requires both the client and server to exchange SYN and ACK (acknowledgment) packets before actual data communication begins. A three-way-handshake is also known as a TCP handshake.
A cold site is a business location that is used for backup in the event of a disruptive operational disaster at the normal business site. A cold site is an office, but it does not always have the necessary equipment to resume prompt operations. The business paying for the cold site provides and installs this equipment.
A cold site is hosted by a third party, and services may be paid annually or monthly via a service charge. Another option is a hot site, which provides all equipment, furniture and other business necessities, whereas a cold site only allocates a specified amount of space. The business paying for the site furnishes all supplies and equipment and uses its business time to install these items. The business using a cold site must also provide any needed hardware and software. The allowance for a cold site should be detailed in an established disaster recovery plan. The business should educate employees about the plan, as well as how a cold site operates. It can take a few days to prepare a cold site since computer systems must be installed. In most cases, a cold site provides business services such as telephone, power and network access.
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