Arcitura Education C90.06 Exam - Topic 1 Question 8 Discussion

Actual exam question for Arcitura Education's C90.06 exam

Question #: 8
Topic #: 1

Cloud Service A is hosted by Virtual Server A. Cloud Storage Device A contains LUN A. Cloud Storage Device A is a multi-tiered cloud storage device with different types of disk groups that perform at different levels. LUN A is located in the disk group with the highest performance level.

Cloud Service B is hosted by Virtual Server B. Virtual Servers A and B are hosted by HypervisorA,

which is installed on a physical server (not shown) that resides in Cloud A. A redundant implementation of LUN A is replicated synchronously to Cloud Storage Device C. Cloud Storage

Device C does not support multiple types of disk groups and resides in Cloud B, which is located in a different geographic region than Cloud A. Requests that cloud service consumers send to Cloud Services A and B are intercepted by an automated scaling listener responsible for initiating scaling activities.

Cloud Service Consumer A issues a request to Cloud Service A (1). To process the request, Cloud Service A accesses LUN Aon Cloud Storage Device A (2). Cloud Service Consumer B issues a request to Cloud Service B (3). To process the request, Cloud Service B accesses LUN B on Cloud Storage Device B (4).

When Cloud Service Consumer A accesses Cloud Service A, there is usually no noticeable performance fluctuation, even during peak usage periods. However, recently, Cloud Storage Device A became unexpectedly unavailable, requiring that Cloud Service A access LUN A on Cloud Storage Device C instead. During the following outage period for Cloud Storage Device A,

Cloud Service Consumer A encounters inconsistent performance from Cloud Service A, including

unusual delays that occur whenever the data requested by Cloud Consumer A isn't cached and

Cloud Service A is required to retrieve the data from LUN A.

Which of the following statements describes a solution that can address this problem?

AThe Storage Maintenance Window pattern can be applied so that future outages of Cloud Storage Device A do not occur unexpectedly. The Resource Pooling and Resource Reservation patterns can be further applied to establish a resource pool on Cloud A that has resources reserved specifically for Cloud Service A. This will prevent other cloud service consumers, such as Cloud Service Consumer B, from competing for Cloud Service A's resources.

BThe Shared Resources pattern can be applied to prevent Cloud Service A from encountering performance issues when IT resources hosted by Hypervisor A are accessed by other cloud service consumers. The Cross-Storage Device Vertical Tiering pattern can be applied to enable Cloud Storage Device A to scale to a higher performance disk type when an outage occurs.

CThe Cloud Balancing pattern can be applied to enable Cloud Service A to switch over to Cloud Storage Device C if Cloud Storage Device A becomes unavailable. The Dynamic Data Normalization pattern can be further applied to streamline and reduce the quantity of the data being stored by LUN A within Cloud Storage Device A, so as to correspondingly reduce the performance impacts during high usage volumes.

DNone of the above.

Show Suggested Answer

Suggested Answer: B

by Arminda at May 26, 2022, 06:50 PM

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Vesta

4 months ago

Not sure if any of these solutions will really fix the performance issues.

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Santos

4 months ago

I think the Cloud Balancing pattern is the best option here.

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Willard

4 months ago

Wait, how can LUN A be accessed from Cloud Storage Device C?

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Blondell

4 months ago

Totally agree, that outage was unexpected!

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James

4 months ago

Cloud Storage Device A is multi-tiered, but it failed recently.

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Lanie

5 months ago

I'm leaning towards option D, but I can't quite remember if any of the other patterns really fit the scenario as described.

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Vanesa

5 months ago

The Cloud Balancing pattern sounds familiar, and I feel like it could be the right choice since it mentions switching to Cloud Storage Device C during outages.

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Edison

5 months ago

I think the Shared Resources pattern might help with performance issues, but I can't recall if it specifically addresses the competition for resources between services.

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Marcos

5 months ago

I remember studying the Storage Maintenance Window pattern, but I'm not sure how it directly relates to preventing outages.

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Nydia

5 months ago

The Scrum Master is all about helping the team, not managing the project directly, so I think the answer is D. Servant-leadership to maximize the team's value creation sounds like the right description to me.

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Sharika

5 months ago

The payment calculations seem off to me. For March, I feel like that $323,000 payment answer could be misleading.

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Aleisha

10 months ago

Wait, so Cloud Service A is suddenly accessing a different storage device in a different geographic region? That's gotta be causing some serious latency issues. No wonder the performance is inconsistent.

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Staci

8 months ago

User1: That could definitely help improve performance and reduce latency issues.

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Reena

9 months ago

User2: Maybe they should consider applying the Cloud Balancing pattern to switch over to a closer storage device when needed.

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Marva

9 months ago

User1: Yeah, it seems like the change in storage device location is causing the performance issues.

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Franklyn

10 months ago

I don't know, option A with the Storage Maintenance Window pattern sounds pretty good to me. Proactive maintenance could help prevent these kinds of outages in the first place.

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Sanjuana

9 months ago

User 3: It's important to have resources reserved specifically for Cloud Service A to avoid performance issues.

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Valentin

9 months ago

User 2: Option A does seem like a solid solution with the Storage Maintenance Window pattern.

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Steffanie

10 months ago

User 1: I agree, proactive maintenance is key to preventing unexpected outages.

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Carissa

10 months ago

Haha, I bet the engineers who designed this system didn't expect Cloud Storage Device A to become unexpectedly unavailable. Murphy's Law strikes again!

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Jeff

8 months ago

Yesenia: That sounds like a good solution to prevent performance issues.

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Vincent

8 months ago

User 3: Maybe applying the Cloud Balancing pattern could help in switching over to another storage device.

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Yesenia

8 months ago

User 2: I know, it can really impact performance for cloud service consumers.

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Gregoria

8 months ago

User 1: Yeah, it's always a challenge when unexpected outages happen.

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Zachary

9 months ago

Aleta: That sounds like a good solution to prevent performance issues during outages.

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Lenita

9 months ago

User 3: I think applying the Cloud Balancing pattern could help switch over to another storage device.

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Aleta

9 months ago

User 2: I know, especially when it affects performance like in this case.

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Makeda

10 months ago

User 1: Yeah, it's always a challenge when unexpected issues arise.

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Kimberely

10 months ago

Option B seems tempting, but I'm not sure the Shared Resources pattern would really solve the problem here. The issue is with the storage device, not the Hypervisor resources.

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Chara

10 months ago

But wouldn't the Resource Pooling and Resource Reservation patterns help prevent performance issues?

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Jina

10 months ago

I disagree, I believe the Shared Resources pattern is the way to go.

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Van

11 months ago

I think the correct answer is C. The Cloud Balancing pattern allows Cloud Service A to switch to Cloud Storage Device C when Device A is unavailable, and the Dynamic Data Normalization pattern can help reduce the performance impact during high usage.

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