Which of the following is a drawback of cloud computing where a customer depends on a dealer for products and services?

Vendor lock-in is a significant drawback in cloud computing that occurs when a customer becomes overly dependent on a specific cloud service provider for products and services. This situation can arise due to various factors, such as proprietary technologies and services that make it difficult for the customer to switch providers without incurring substantial costs, losing functionalities, or facing operational disruptions.

When an organization invests heavily in a particular cloud provider, including customized applications and integrations, the costs associated with transitioning to another vendor can be prohibitively high. This can limit the customer’s flexibility and negotiating power. Additionally, vendor lock-in can result in challenges regarding data portability and interoperability, making it challenging to migrate workloads or data to different platforms or vendors.

In contrast, cryptographic erasure refers to a method of securely deleting data by encrypting it and then destroying the key, while resiliency pertains to the cloud infrastructure's ability to remain operational and recover from various disruptions. Data overwriting involves writing new data over existing data and is mainly related to data management practices rather than cloud vendor relationships. These aspects do not capture the essence of the dependency and limitations imposed by vendor lock-in, which highlights its relevance as a critical concern in cloud computing.