DevOpsInterviewPrep logo
Cloud Platforms & Architecture / 15
mediumNewAmazon & AWSPhonePeGoldman Sachs

Pick an EBS volume type for a Postgres primary with a nightly analytics batch. What decides it?

Volume choice is IO-shape matching: burst buckets, provisioned IOPS and throughput designs behave very differently under mixed OLTP-plus-batch load. Average latency graphs hide the failure entirely.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

Volume choice is IO-shape matching: burst buckets, provisioned IOPS and throughput designs behave very differently under mixed OLTP-plus-batch load. Average latency graphs hide the failure entirely.

an account raises the per-topic limit · no card
UP NEXT ON YOUR JOURNEY
DISCUSSION · 0

Nothing here yet. Say how you would answer it.