I'm going with C. YARN.nodemanager.vmem-pmom-ratio. It just sounds like the kind of obscure option they'd throw in to trip us up. But hey, at least it's not as bad as the question about the mating habits of Hadoop elephants.
D. YARN.nodemanager.resource.memory-mb is definitely the correct answer. I mean, how else would you configure the memory and CPU resources, right? This question is a piece of cake!
Hmm, I'm not sure about this one. I was thinking B. YARN.nodemanager.resource.cpu-vcore, but now I'm second-guessing myself. This exam is really keeping us on our toes!
I think the answer is D. YARN.nodemanager.resource.memory-mb, since the question is specifically asking about the number of PUs (processing units) which are related to memory configuration.
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