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

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

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?

Suggested Answer: B

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37 comments · newest first
VE
Vesta 11 months ago
Not sure if any of these solutions will really fix the performance issues.
SA
Santos 12 months ago
I think the Cloud Balancing pattern is the best option here.
WI
Willard 12 months ago
Wait, how can LUN A be accessed from Cloud Storage Device C?
BL
Blondell 1 year ago
Totally agree, that outage was unexpected!
JA
James 1 year ago
Cloud Storage Device A is multi-tiered, but it failed recently.
LA
Lanie 1 year 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.
VA
Vanesa 1 year 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.
ED
Edison 1 year 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.
MA
Marcos 1 year ago
I remember studying the Storage Maintenance Window pattern, but I'm not sure how it directly relates to preventing outages.
NY
Nydia 1 year 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.
SH
Sharika 1 year ago
The payment calculations seem off to me. For March, I feel like that $323,000 payment answer could be misleading.
AL
Aleisha 1 year 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.
ST
Staci 1 year ago
↳ replying to Aleisha
User1: That could definitely help improve performance and reduce latency issues.
RE
Reena 1 year ago
↳ replying to Aleisha
User2: Maybe they should consider applying the Cloud Balancing pattern to switch over to a closer storage device when needed.
MA
Marva 1 year ago
↳ replying to Aleisha
User1: Yeah, it seems like the change in storage device location is causing the performance issues.
FR
Franklyn 1 year 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.
SA
Sanjuana 1 year ago
↳ replying to Franklyn
User 3: It's important to have resources reserved specifically for Cloud Service A to avoid performance issues.
VA
Valentin 1 year ago
↳ replying to Franklyn
User 2: Option A does seem like a solid solution with the Storage Maintenance Window pattern.
ST
Steffanie 1 year ago
↳ replying to Franklyn
User 1: I agree, proactive maintenance is key to preventing unexpected outages.
CA
Carissa 1 year 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!
JE
Jeff 1 year ago
↳ replying to Carissa
Yesenia: That sounds like a good solution to prevent performance issues.
VI
Vincent 1 year ago
↳ replying to Carissa
User 3: Maybe applying the Cloud Balancing pattern could help in switching over to another storage device.
YE
Yesenia 1 year ago
↳ replying to Carissa
User 2: I know, it can really impact performance for cloud service consumers.
GR
Gregoria 1 year ago
↳ replying to Carissa
User 1: Yeah, it's always a challenge when unexpected outages happen.
ZA
Zachary 1 year ago
↳ replying to Carissa
Aleta: That sounds like a good solution to prevent performance issues during outages.
LE
Lenita 1 year ago
↳ replying to Carissa
User 3: I think applying the Cloud Balancing pattern could help switch over to another storage device.
AL
Aleta 1 year ago
↳ replying to Carissa
User 2: I know, especially when it affects performance like in this case.
MA
Makeda 1 year ago
↳ replying to Carissa
User 1: Yeah, it's always a challenge when unexpected issues arise.
KI
Kimberely 2 years 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.
CH
Chara 2 years ago
But wouldn't the Resource Pooling and Resource Reservation patterns help prevent performance issues?
JI
Jina 2 years ago
I disagree, I believe the Shared Resources pattern is the way to go.
VA
Van 2 years 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.
ME
Meaghan 1 year ago
↳ replying to Van
Yes, I believe it will help streamline the data and reduce performance impacts during high usage.
PA
Pamela 1 year ago
↳ replying to Van
But what about the Dynamic Data Normalization pattern? Do you think that will really help?
DO
Dorothy 1 year ago
↳ replying to Van
I agree, the Cloud Balancing pattern seems like the right solution.
FL
Flo 1 year ago
↳ replying to Van
I think the correct answer is C.
CH
Chara 2 years ago
I think the solution lies in applying the Cloud Balancing pattern.
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