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Answer: Premium SSD with ZRS; Host-caching: Read-only
The correct answer is A: Premium SSD with ZRS; Host-caching: Read-only. Explanation: 1. **Storage Type:** Premium SSDs provide the lowest latency and highest performance compared to other disk types. Zone-redundant storage (ZRS) ensures data resiliency by replicating data across multiple availability zones, which protects against datacenter outages. 2. **Host Caching:** Read-only caching is recommended to enhance read performance without risking data loss. Write caching could pose a risk of data loss if a host fails, therefore it is not suitable for scenarios where no data loss is acceptable.
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For VM1 in an Azure subscription, recommend storage and host caching configurations for a new 1-TB data disk ensuring data resiliency, high performance, and no data loss in case of host failure.
A
Premium SSD with ZRS; Host-caching: Read-only
B
Premium SSD with GRS; Host-caching: Read/write
C
Standard SSD with LRS; Host-caching: Read/Write
D
Ultra SSD with RA-GZRS; Host-caching: Read/Write
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