What is the purpose of a DPU in a data center?
Why A is the answer
Offload infrastructure tasks from the host CPU
DPUs handle networking, storage and security tasks.
In detail
- DPUs take infrastructure tasks off the host CPU.
- It frees host CPU cores.
Use case
An illustrative scenario, not a real incident.
A DPU takes on network and storage work, so host CPUs run applications.
See it in different ways
flowchart LR A["Networking"] --> D["BlueField DPU"] B["Storage"] --> D C["Security"] --> D D --> E["CPU freed for applications"]
mindmap
root((BlueField DPU))
Networking
Storage
Security
Result
CPU free for applicationsmindmap
root(("Server"))
n1["Host CPU"]
n2["Applications"]
n3["DPU"]
n4["Networking"]
n5["Storage"]
n6["Security"]Key point: DPUs offload infrastructure tasks.
Why the other options are wrong
- B. Replace the GPU when training neural networks
- GPUs do the matrix math.
- C. Store the cluster's datasets for long periods
- Storage systems hold data.
- D. Run the model's matrix math in place of the GPU
- That is not the purpose.

