1z0-523

单选题Select valid reasons for IT performance issues that cannot be universally solved by adding more hardware：（）Aadding hardware may exacerbate inefficiency， which can lead to over provisioning and lower utilizationBperformance may degrade due to bottleneck

题目
单选题
Select valid reasons for IT performance issues that cannot be universally solved by adding more hardware：（）
A

 adding hardware may exacerbate inefficiency， which can lead to over provisioning and lower utilization

B

 performance may degrade due to bottlenecks such as database connections that won’t scale in lock step with other dimensions such as computing capacity or memory

C

 both A and B are valid

D

 neither A nor B are valid

参考答案和解析
正确答案： B
解析： 暂无解析
如果没有搜索结果，请直接 联系老师 获取答案。
相似问题和答案

第1题：

You are employed as the exchange administrator at Company.com.the Company.com organization makes use of microsoft exchange server 2010 as their messaging solution.Company.com has its headquarters in stockholm where you are located.you are responsible for an exchange server 2010 mailbox server named - ex01.during the course of the day you receive notification from management to determine which users that have the biggest mailboxes on - ex01.What should you do？（）

  • A、This can be accomplished by adding the MSExchangeIS Mailbox performance counters to the Performance Monitor.
  • B、This can be accomplished by running the Get-MailBoxStatistics cmdlet.
  • C、This can be accomplished by running the Get-StoreUsageStatistics cmdlet.
  • D、This can be accomplished by adding the MSExchangeIS Client performance counters to the Performance Monitor.

正确答案:B

第2题：

Which object may be used during query optimization to improve the performance for a subset of SELECT queries?（）

  • A、MQT
  • B、Trigger
  • C、Read Only Cursor
  • D、Stored Procedure

正确答案:A

第3题：

Which of the following does Strayer want to stress most?

A．The driving performance may be weakened by a cell phone talking．

B．The driving performance may be affected by a high blood alcohol level．

C．Drivers are not to drive over the cell phone or after drinking．

D．A cell phone talking is no less hazardous than alcohol in driving．


正确答案：A
逻辑推理题。全文阐述驾驶时手机聊天的危险以及通过实验分析其危害性的具体体现，尤其是其对驾驶的影响，由此我们可以确定正确答案是A(驾驶行为会受到打电话的影响)。选项B(血液中酒精度高会影响驾驶行为)；C(打电话或酒后不应开车)和D(边开车边打电话和酒后驾驶一样危险)都不是Strayer最着重强调的。

第4题：

Which of the following is an advantage of hardware RAID over software RAID？（）

  • A、Hardware RAID costs less than software RAID
  • B、Hardware RAID is built into the operating system’s software
  • C、Hardware RAID has better performance than software RAID
  • D、Hardware RAID requires no configuration and software RAID does

正确答案:C

第5题：

Which of the following is a benefit of NAS over SAN?（）

  • A、Higher data integrity
  • B、Lower cost of implementation
  • C、Higher redundancy
  • D、Increased performance

正确答案:B

第6题：

Which of the following BEST explains the purpose of an HCL？（）

  • A、 It lets the administrator know which hardware will work with a particular OS.
  • B、 It sets the bare minimum hardware requirements for specified software.
  • C、 It allows the administrator to verify software compatibility amongst various vendors.
  • D、 It verifies that hardware is fit for certain overclocking performance metrics.

正确答案:A

第7题：

Which of the following would provide a technician with a performance reference point to refer backto after hardware repair?（）

  • A、Baseline
  • B、Network map
  • C、Wire scheme
  • D、Asset management

正确答案:A

第8题：

The architecture design specifies the overall architecture and the placement of software and hardware that will be used. Architecture design is a very complex process that is often left to experienced architecture designers and consultants. The first step is to refine the () into more detailed requirements that are then employed to help select the architecture to be used and the software components to be placed on each device. In a (), one also has to decide whether to use a two-tier, three-tier, or n-tier architecture. Then the requirements and the architecturedesign are used to develop the hardware and software specification. There are four primary types of nonfunctional requirements that can be important in designing the architecture. () specify the operating environment(s) in which the system must perform and how those may change over time. ( 请作答此空) focus on the nonfunctional requirements issues such as response time, capacity, and reliability. () are the abilities to protect the information system from disruption and data loss, whether caused by an intentional act. Cultural and political requirements are specific to the countries in which the system will be used.

A. Environment requirements
环境要求
B. Maintainability requirements
可维修性要求
C. Performance requirements
性能要求
D. Virus control requirements
病毒控制要求

答案：C
解析：
体系结构设计指定了将使用的总体架构和软件和硬件的位置。架构设计是一个非常复杂的过程，通常留给经验丰富的架构设计师和顾问。第一步是将非功能需求细化为更详细的需求，然后使用这些需求来帮助选择要使用的体系结构和将要放置在每个设备上的软件组件。在客户端-服务器体系结构，也决定是否使用双层、三层或多层结构。然后，需求和体系结构设计用于开发硬件和软件规范。有四种主要类型的非功能需求在设计架构中是很重要的。操作要求指定操作环境，系统必须执行和那些可能会随时间而改变。性能要求关注非功能性需求的问题，如响应时间、容量和可靠性。安全要求的能力来保护信息系统的中断和数据丢失，无论是通过故意行为造成。文化和政治要求是具体的国家将使用该系统。

第9题：

Which of the following BEST describes a virtualized server environment？（）

  • A、 A physical server environment utilizing only RAM storage with no physical disk medium to enhance performance.
  • B、 Multiple operating systems sharing the same physical hardware to leverage higher usage.
  • C、 A distributed computing environment where many lower cost machines are combined to increase processing power and overall performance.
  • D、 A single operating system using multiple physical hardware chassis to leverage higher availability.

正确答案:B

第10题：

Which of the following commands may indicate hardware redundancy protection of a PV（）

  • A、lsattr
  • B、lspv
  • C、lsvg
  • D、lsresource

正确答案:A

更多相关问题
相关内容