C5050-284 受験内容 & Foundations Of アイ・ビー・エム Cloud Computing Architecture V4
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試験番号：C5050-284問題集試験科目：Foundations of IBM Cloud Computing Architecture V4
最近更新時間：2018-10-31
問題と解答：全112問 C5050-284 練習問題集
100％の返金保証。1年間の無料アップデート。
NEW QUESTION: 1
An application has recently recorded this current profile for the utilization of the server-side
components.
The graph shows that within a short period of time several sudden utilization peaks have been
recorded.
Except for these isolated spikes the load is below 20%.
Which two components of a Platform as a Service offering primarily contribute to handle the spikes
in CPU utilization and ensure that the application meets the expected performance targets (i.e. <40%
CPU utilization)?
A. E-mail notification services can automatically inform system administrators of the application's
current state and allow them to promptly intervene with the addition of new computing resources.
B. Auto-scaling and cloud-bursting provide the capability of acquiring additional compute nodes and
by joining the resource pool can help level down the overall server load. When the load stabilizes
below the expected threshold, the resources can be relinquished.
C. Runtime metering and monitoring services help detect conditions that lead to peaks in CPU
utilization and therefore react with the provision of additional resources.
D. Continuous delivery of services allows application developers to quickly provide patches so that a
new code base can be deployed and more efficiently address load surges.
E. Identity management services allow strict control access to applications, prevent unauthorized
access to unwanted clients, and reduce the CPU utilization of the computing nodes.
Answer: D,E
C5050-284 リンクグローバル
NEW QUESTION: 2
What are the benefits for an organization utilizing dynamic infrastructure for running its
workloads?
A. Dynamic infrastructure provides the means to achieve elastic scalability which ensures that
organizations keep constant and predictable costs for the IT resources utilization.
B. Dynamic infrastructure is essential for the implementation of application service catalogs which
reduces the time to market of such applications and increases the organization's business revenue.
C. By leveraging pooled IT resources, dynamic infrastructure provides flexible IT capacity which better
aligns the allocation of IT resources to business process needs of the organization
D. Organizations no longer need their own data centers which reduces the cost of their own IT
expenditure.
Answer: C
C5050-284 復習
Explanation:
Reference:
http://en.wikipedia.org/wiki/Dynamic_infrastructure
NEW QUESTION: 3
What are three non-functional requirements related to cloud computing?
A. security - define the level of compliance needed
B. storage - type required for workload
C. compute - requirements for workload
D. network - access for workload
E. availability - delivery making workload available
F. scalability - define the maximum number of users to support
Answer: A,E,F
C5050-284 絶対 C5050-284 ガイド
Explanation:
http://public.dhe.ibm.com/partnerworld/pub/certify/study_guide_c2030_284.pdf
Page: 45-46
Describe non-functional requirements (NFRs) in the context of a cloud solution.
NFRs identify critical aspects of the cloud solution that are not feature/function related. NFRs impact
the solution design by clearing identifying key characteristics of cloud operations.
3.14.1.Availability and serviceabilityincludes characteristics such as high availability, DR, acceptable
downtime or degradation of services during maintenance. The availability expectations of a system
relate to how many hours in the day, days per week, and weeks per year the application is going to
be available to its users and how quickly they should be able to recover from failures. Since the
system includes Software (including applications), Hardware and Network components, this
requirement extends to all three types. The serviceability expectations must integrate with existing
support structure and support processes, provide a ticketing system to log/track problem tickets and
that integrated with an existing ticketing system, support automatic patch download and installation
and provide sufficient diagnostic information (logs, dumps, traces) to expedite problem resolution
and support service level agreements often measured by key performance indicators (KPIs) like
"98.5% availability" or "Full restoral to service in < 4 hrs" or "Maintenance window limited to a two
hour window once per month on second Saturday". 3.14.2.Performanceincludes UI and VM expected
performance. The cloud infrastructure and services must be able to meet the response time,
throughput and scaling requirements as defined by the service level agreements of the service
offering. The cloud infrastructure must provide manual and automated ways to optimize utilization in
the data center. Often measured by KPIs like "64 bit RHEL VM should be available within eight
minutes of user provisioning request" or "UI responsiveness should render catalog options within 5
seconds". 3.14.3.Scalabilityincludes number of concurrent users and number of number of managed
workloads and number of VMs per minute/hour. Scalability is the ability to expand the system
architecture to accommodate more users, more transactions and more data as users and data are
added. This should allow existing systems to be extended as far as possible without necessarily
having to replace them. Often measured in KPIs like "Needs to support 100 concurrent users" or
"Should have capacity to managed 10,000 RHEL VMs and 5,000 AIX LPARs" or "System should be able
to provision 100 RHEL VMs per/hour". 3.14.4.Consumabilityincludes UI usability, cloud infrastructure
install time and total cost of ownership. Consumability is a description of the customer's end-to-end
experience with the solution. The tasks associated with Consumability start before the consumer
purchases a service and continue until the customer stops using the product. By improving the
Consumability of the service, the value of that service to the client can be increased. Often quantified
as "UI should be intuitive for new users without formal training" or "Installation of cloud
infrastructure should require no more than 80 hours". 3.14.5.Extensibilityincludes 3rd party
integration, UI extensibility, application interfaces, and hypervisor support. The Cloud must be
extensible in order to address future functionality and changes without having to be rewritten,
support that the application may have access to additional disparate back-end systems, support the
ability to integrate with existing security systems either on-premise or elsewhere in clouds and be
able to add/remove/relocate physical and logical resources withoutdisturbing running services. Often
quantified as "Cloud infrastructure should interface with existing problem management system" or
"Cloud infrastructure should support Vmware, PowerVM, and HyperV" or "Self Service UI should be
invocable through RESTful APIs". 3.14.6.Securityincludes Command & Control, Identity, Access, and
Entitlement Management, Data and Information Protection Management, Software, System, and
Service Assurance, Threat and Vulnerability Management, Risk and Compliance Assessment and
Security Policy Management. Often driven by industry regulatory compliance. Often quantified as
"Must adhere to corporate standard XYZ" or "Provisioned VMs must receive monthly security
updates" or "Cloud infrastructure should ensure network isolation between tenant workloads".
NEW QUESTION: 4
According to the Cloud Services Adoption Pattern, what is considered to be the set of services
that make up the entry level for a Platform as a Service implementation?
A. Management of development operations, continuous delivery, and application performance
monitoring.
B. Management of programming services and integration services with other clouds and applications.
C. Management of services through service catalog, automated service deployment and metering,
resource
D. Management of Service Level Agreements, quality of service management, and security.
Answer: C
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