What is a disadvantage of using web services?

The choice that highlights a disadvantage of using web services is centered around increased dependency on network reliability. Web services function over the Internet or other networks, which means they rely on the availability and performance of the network to communicate and exchange data efficiently. If the network is slow, unstable, or down altogether, it can significantly hinder the ability to access or utilize the web service, leading to potential disruptions in applications that depend on it.

This characteristic can pose significant challenges, particularly for applications that require real-time data or have a high need for availability. The downside is that such applications become overly reliant on the connectivity of the network, making them vulnerable to issues like latency, downtime, or bandwidth limitations. In contrast, systems that operate locally or in a more controlled environment may have fewer network-related complications and can maintain functionality even when network connections are poor.

While other options may present valid concerns in specific contexts, the increased dependency on network reliability is a fundamental issue directly tied to how web services are designed and operate.