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Exam 1z0-932 topic 1 question 122 discussion

Actual exam question from Oracle's 1z0-932
Question #: 122
Topic #: 1
[All 1z0-932 Questions]

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 Hide 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 ago
answer - b & d
upvoted 12 times
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shashigm
Most Recent 4 years, 6 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, 8 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, 9 months ago
A and D! Lock that!
upvoted 1 times
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adesmaster
4 years, 9 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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Czaar
4 years, 9 months ago
Definitely B , D
upvoted 4 times
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adesal
4 years, 11 months ago
Option A cannot be correct, because you are going against the requirement that says they have all have to be in the same AD.
upvoted 4 times
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y6mc37021
4 years, 11 months ago
Answer- B & D
upvoted 4 times
hhvl89
4 years, 8 months ago
"The cluster must be resilient to any potential infrastructure failures." What happens if the entire AD goes offline?
upvoted 2 times
joelgaspar
4 years, 8 months ago
in that case would be a "disaster recovery" event and not a "fault tolerant" event that is connected to potential infrastructure failures.
upvoted 1 times
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