Which of the following methodologies should an administrator use to backup a zero-downtime, high-performance application?

Cold backup requires the application or system to be shut down before backup, which directly contradicts the requirement for "zero-downtime."

DAS (Direct Attached Storage) describes a storage type directly connected to a server and is not a backup methodology suitable for high-performance, zero-downtime applications.

A serverless architecture inherently provides high availability and resilience, where applications run without managing underlying servers, and data persistence often utilizes highly available cloud services with built-in backup and replication capabilities, ensuring zero downtime for application operations during backup processes. This approach moves the responsibility for infrastructure availability and data protection to the cloud provider, enabling seamless operation.

Tape-to-disk describes a data movement strategy between storage media, typically for long-term retention. While it can be part of a backup strategy, it does not specifically ensure zero downtime for the application itself during the primary backup process.