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Exam 1z0-1072-20 topic 1 question 22 discussion

Actual exam question from Oracle's 1z0-1072-20

Question #: 22
Topic #: 1

You deployed a database on a Standard Compute instance in Oracle Cloud Infrastructure (OCI) due to cost concerns. The database requires additional storage with high I/O and you decided to use OCI Block Volume service for it.
With this requirement in mind, which elastic performance option should you choose for the Block Volume?

A. Balanced Performance
B. Higher performance
C. Extreme performance
D. Lower cost

Show Suggested Answer

Suggested Answer: B 🗳️
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Block/Concepts/blockvolumeperformance.htm

by SADIO at Dec. 21, 2020, 10:13 a.m.

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Mohamed79

Highly Voted 4 years, 4 months ago

I believe that the Keyword here is "high I/O" thus Higher Performance is the best answer. Higher Performance: Recommended for workloads with the highest I/O requirements, requiring the best possible performance, such as large databases. This option provides the best linear performance scale with 75 IOPS/GB up to a maximum of 35,000 IOPS per volume. Throughput also scales at the highest rate at 600 KBPS/GB up to a maximum of 480 MBPS per volume. With this option you are purchasing 20 VPUs per GB/month. REF: https://docs.oracle.com/en-us/iaas/Content/Block/Concepts/blockvolumeelasticperformance.htm#Block_Volume_Elastic_Performance

upvoted 11 times

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vaibhav_joshi

Most Recent 2 years, 9 months ago

Selected Answer: B

B is correct

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pipolo

3 years, 5 months ago

I THINK D Lower Cost: Recommended for throughput intensive workloads with large sequential I/O, such as streaming, log processing, and data warehouses. The cost is only the storage cost, there is no additional VPU cost. This option is only available for block volumes, it is not available for boot volumes. For more information, including specific throughput and IOPS performance numbers for various volume sizes

upvoted 2 times

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Soojit

3 years, 9 months ago

Correct answer is B

upvoted 3 times

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titaza

4 years ago

it's B

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Nag403

4 years, 1 month ago

B option as by default balanced performance is enabled , and the user is looking for High I/o

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Davar39

4 years, 7 months ago

I am not sure that the question is written correctly, if we have only performance in mind then yes you should go with "higher performance" option, if we have to consider the cost as well then I would agree with SADIO and go with "balanced performance".

upvoted 3 times

FPM

4 years, 6 months ago

Option B is correct. You cannot improve performance with "Balance performance" of a block volume since when you create the instance block volume needs to be either "Balance" (default) or "Higher Performance" (you cannot have block volume to be Low)

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SADIO

4 years, 7 months ago

The anser should be A: The Balanced elastic performance option provides a good balance between performance and cost savings for most workloads, including those that perform random I/O such as boot volumes. This option provides linear peformance scaling with 60 IOPS/GB up to 25,000 IOPS per volume. Throughtput scales at 480 KBPS/GB up to a maximum of 480 MBPS per volume. https://docs.cloud.oracle.com/en-us/iaas/Content/Block/Concepts/blockvolumeperformance.htm

upvoted 1 times

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