Vendor Name: Arcitura Education
Exam code: C90-06A
Exam Name: Cloud Architecture Lab
Click the link below to get full version
http://www.examcertify.co.uk/C90-06A.html
|
Question: 1
|
Cloud Service A
requires access to Cloud Storage Device A, which contains LUNs A and B. Cloud
Service A is hosted by Virtual Server A, which resides on Hypervisor A on
Physical Server A.
Virtual Server B
hosts Cloud Service B and Cloud Service C.
Cloud Service
Consumer A accesses Cloud Service A (1), which then accesses LUN A or B on
Cloud Storage Device A (2). After receiving the requested data from Cloud
Service A, Cloud Service Consumer A forwards the data to Cloud Service B (3),
which then writes it to Cloud Storage Device B (4).
Cloud Service
Consumer A belongs to Organization A,
Organization A uses
LUN A and LUN B on Cloud Storage Device A to store their important client
account data. Cloud Storage Device A is a low-performance cloud storage device,
which begins to cause performance issues as more data is added to LUNs A and B
and as Cloud Service Consumer A performs data access requests more frequently.
Organization A asks that its cloud architecture be upgraded to process
increased quantities of data and higher volumes of data requests.
Organization A has
been leasing a PaaS environment that it used to build Cloud Service A, which it
would like to make available to the general public. Organization A needs to
establish a system capable of monitoring usage of Cloud Service A for billing
purposes.
The cloud provider
is using a usage data collection and reporting system that gathers information
on Organization A's hosted IT resources approximately ten hours after the time
of usage. One day, Organization A attempts to retrieve information on whether
Virtual Server B has available Cloud Service C instances. They discover that
they are unable to obtain the current status of Virtual Server B. Organization
A demands a system that provides instant availability reporting.
Which of the
following statements lists the patterns that can be applied to solve these
three requirements and problems?
A. Cross-Storage
Device Vertical Tiering, Pay-as-You-Go. Self-Provisioning
B. Service Load
Balancing, Pay-as-You-Go, Multipath Resource Access
C. Intra-Storage
Device Vertical Data Tiering, Usage Monitoring, Centralized Remote
Administration
D. None of the
above.
|
Answer: D
|
|
Question: 2
|
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?
A. The 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.
B. The 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.
C. The 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.
D. None of the
above.
|
Answer: D
|
No comments:
Post a Comment