What justifies Cara's decision to create a multisite domain for her expanding company?

Cara's decision to create a multisite domain is justified primarily by the need to ensure that logon traffic remains on the local site, which greatly enhances the overall efficiency of the company's email server and other services. In a multisite environment, when users log in, the traffic directed to authenticate them is handled by the nearest domain controller, reducing latency and improving response times. This local handling of logon requests ensures less congestion on the network and optimizes the performance of network services.

Moreover, the distribution of resources across multiple sites can also lead to improved redundancy and availability, allowing the company to maintain smoother operations as it expands into various geographical areas. Centralizing services effectively across multiple sites supports a more efficient flow of data while maximizing productivity for users regardless of their physical location. Utilizing a multisite architecture ultimately helps in managing resources more effectively as the company grows.