Exam 1z0-932 topic 1 question 122 discussion

Actual exam question from Oracle's 1z0-932

Question #: 122
Topic #: 1

As the Cloud Architect for your company, you have been tasked with designing a high performance compute (HPC) cluster in Oracle Cloud Infrastructure (OCI).
The following requirements have been defined:
✑ The cluster must be a minimum of three nodes, but may increase to six nodes when demand requires.
✑ The cluster must be resilient to any potential infrastructure failures.
✑ To minimize latency, all nodes must be deployed within the same availability domain (AD).
✑ Adding or replacing nodes within the cluster should take no more than 30 minutes.
Which two steps should be performed to satisfy these requirements in OCI? (Choose two.)

A. Deploy the cluster in a single AD with a shared file system that leverages the file storage service (FSS). Deploy a standby cluster in another AD and configure it to use the same shared file system.
B. Deploy the cluster in a single AD. Place each of the nodes in one of the three different fault domains in that AD.
C. Create a backup of your HPC node compute instance boot volume. Launch new compute instances directly from the backup to reduce provisioning time.
D. Create a custom image of your HPC node compute instance. Launch new compute instances using this image to reduce provisioning time.
E. Deploy the cluster in a single AD. Place each of the nodes in a different virtual cloud network (VCN) subnet.

Show Suggested Answer

Suggested Answer: AD 🗳️

by Chris_Y at April 20, 2020, 3:13 p.m.

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Chris_Y

Highly Voted 5 years, 2 months ago

answer - b & d

upvoted 12 times

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shashigm

Most Recent 4 years, 8 months ago

answer - B and C D is not correct as it requires a downtime of the compute instance for creating a custom image.

upvoted 1 times

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Eini

4 years, 10 months ago

NOT A) A is posible but Durability of a File Storage is AD, whether AD fails, FS fails and Stand By Cluster Fails too. “Oracle Cloud Infrastructure File Storage employs 5-way replicated storage, located in different fault domains, to provide redundancy for resilient data protection. Data is protected with erasure encoding.” “While it is possible to access mount targets from any availability domain in a region, for optimal performance, place File Storage resources in the same availability domain as the Compute instances that access them.” https://docs.cloud.oracle.com/en-us/iaas/Content/File/Concepts/filestorageoverview.htm

upvoted 1 times

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GDP

4 years, 10 months ago

A and D! Lock that!

upvoted 1 times

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adesmaster

4 years, 11 months ago

A is correct because the standby AD runs same nodes deployed on it. Principal AD runs all nodes in the same AD and Standby AD runs all nodes in the same AD in case of failure.

upvoted 4 times

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