In a Docker image reference, the image name is the component immediately preceding the tag.
In images.comptia.org/abcd123/working:latest, the image name is working and the tag is latest.
The command correctly references and runs the image named working.

A Layer 7 load balancer can inspect HTTP/HTTPS traffic and route requests based on application-level data, such as host headers or URLs, making it ideal for distributing traffic across multiple websites hosted on a replica set of VMs.

To effectively manage backup retention and control increasing storage costs, the administrator should establish a policy for deleting old backup files after a certain time period. This ensures that outdated backups that are no longer needed for recovery are removed, freeing up storage space and reducing costs.

A web application firewall protects against application-layer attacks such as HTTP floods and SQL injection by filtering and blocking malicious web traffic before it reaches the application.

An event-driven architecture is the most efficient method for automating the task of copying files from one cloud storage resource to another upon their arrival. This architecture allows systems to automatically trigger actions based on specific events, such as the arrival of new files, minimizing manual effort and ensuring timely processing.