Exam Simulator · AI · Infrastructure · Cybersecurity

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Track-n-Test — Exam Mode23:41
Q 14 / 60DGX SYSTEMS
Which component in a DGX system provides the high-bandwidth interconnect between GPUs within a single node?
APCIe switch fabric
BNVLink & NVSwitch
CInfiniBand HCA
DNIC bonding
Accuracy
78%
Pace
+0:12
Weak area
Networking
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Track-n-Test — Exam Mode23:41
Q 14 / 60DGX SYSTEMS
Which component in a DGX system provides the high-bandwidth interconnect between GPUs within a single node?
APCIe switch fabric
BNVLink & NVSwitch
CInfiniBand HCA
DNIC bonding
Accuracy
78%
Pace
+0:12
Weak area
Networking
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Sample item · NCA-GENL
In a retrieval-augmented generation pipeline, what is the primary purpose of the retriever stage?
ATo fine-tune the base model weights
BTo fetch relevant context to ground the model's response
CTo tokenize the user prompt
Explanation
The retriever queries an external knowledge store and returns passages injected into the prompt, grounding generation in current, source-backed context rather than parametric memory.
↳ Ref: Generative AI & LLMs study guide, §4.2 — Retrieval pipelines
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