登录之后可查看解析

A "cold site" is a facility where power and space are available to install processing equipment, but it is not immediately available. If an organization uses a cold site, its disaster recovery plan must include arrangements to get computer equipment installed there quickly. Thus, a "cold site" arrangement is too vendor-dependent because the company has to rely on the vendor for timely delivery of the equipment.
Using excess capacity at another data center within the organization ensures that assets needed for backup are available. Thus, it is not too vendor-dependent.
A "hot site" arrangement must be fully operational and immediately available. A "hot site" arrangement cannot be too vendor-dependent.
A "cold and hot site" combination arrangement is where the hot sit is first used until the cold site is prepared. Thus, it is not too vendor-dependent.