An IT administrator is responsible for selecting the appropriate storage tier for a new application...

For storing data for long-term archival purposes with a minimal I/O load and a peak IOPS requirement of 50,Tier 5 storageis the most appropriate choice.

Tier 5 Storage: This storage tier is designed for workloads with low performance and IOPS requirements, such as long-term data archival or infrequently accessed data. Tier 5 offers the lowest cost option and is ideal for scenarios where data is rarely accessed, and there is a minimal input/output operation per second (IOPS) requirement.

Workload Suitability: Given that the workload described involves minimal I/O load and a peak IOPS requirement of 50, Tier 5 provides an optimal balance between cost and the minimal performance needed for such an archival workload.

References from IBM Cloud Professional Architect Materials:

IBM documentation on IBM Cloud Storage Tiers indicates that Tier 5 storage is suitable for long-term data storage and archival, where performance requirements are minimal.

Other options are incorrect:

B. Tier 2 storage,C. Tier 3 storage, andD. Tier 1 storageprovide higher performance than necessary for the described archival workload, resulting in potentially unnecessary costs.

=================