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5.1 3.3 3.6 2.3 5.3
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Based on these figures, what is the Windows Experience Index base score A. 2.3 B. 3.9 C. 5.1 D. 4.4 2. A client running Windows 7 is experiencing intermittent performance problems. You suspect the problems might be caused by an application that you recently installed but you have forgotten exactly when you did this. Which tool or feature would you use to determine when the application was installed A. Reliability Monitor B. Action Center C. DCSs D. Performance Monitor
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3. Which of the following types of information are stored in Reliability Monitor (Choose all that apply; each correct answer presents part of a complete solution.) A. An application failed and needs to be restarted. B. A Windows error occurred and the system was rebooted. C. An application was uninstalled. D. A service was stopped. E. A device driver failed. 4. You are configuring a client running Windows 7 named Canberra to retrieve events from a computer running Windows 7 named Aberdeen. Both computers are on the same workgroup. Which of the following commands would you run on the collector computer to configure the Event Collector service A. wecutil qc B. winrm qc C. winrm qc -q D. %SYSTEMROOT%\System32\gpedit.msc 5. You want to use Performance Monitor to display performance data captured in a DCS. You open the tool and access the Performance Monitor Properties dialog box. On which tab can you choose whether to display current activity in real time or log files that you have saved using a DCS A. General B. Source C. Data D. Graph E. Appearance Answers 1. Correct Answer: B A. Incorrect: On the General tab, you can specify how frequently the graph updates and how much data is displayed in the graph before Performance Monitor begins overwriting the graph on the left portion of the chart. You can also specify whether Legend, Value Bar, and Toolbar are displayed and whether the Report and Histogram views show Default, Maximum, Minimum, Average, or Current values. You cannot choose whether to display current activity in real time or show log files saved using a DCS. B. Correct: On the Source tab, you can choose whether to display current activity in real time or log files saved using a DCS. If you display a log file, you can use this tab to control the time range that is displayed in the Performance Monitor window. C. Incorrect: You can use the Data tab to configure the display of specific counters. In the Counters list, you can select the counter that you want to configure and adjust Color, Width, and Style. You can increase or decrease the Scale value. You cannot choose whether to display current activity in real time or log files saved using a DCS. D. Incorrect: You can use the Graph tab to select the scroll style and the type of graph to display. You cannot choose whether to display current activity in real time or log
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files saved using a DCS. E. Incorrect: If you keep multiple Performance Monitor windows open simultaneously you can use the Appearance tab to change the color of the background or other elements. This makes it easier to distinguish between the windows. You cannot choose whether to display current activity in real time or log files saved using a DCS. 2. Correct Answer: A A. Correct: You can use the Wecutil utility to configure the Event Collector service. B. Incorrect: The Winrm command configures WinRM. Typically, you run it on a source computer. You can run it on the collector computer if you are configuring a sourceinitiated conscription, but this is not relevant to this scenario because Canberra is retrieving events from Aberdeen. In any case, this command does not configure the Event Collector service. C. Incorrect: The Winrm command configures WinRM. Here, you are running it in quiet mode. Whether you use the -q switch or not, the command does not configure the Event Collector service. D. Incorrect: This command starts the Group Policy MMC snap-in. You can use Group Policy to add source computers to a source-initiated conscription, but this is not relevant to this scenario. In any case, the command does not configure the Event Collector service. 3. Correct Answers: A, B, C, and E A. Correct: Application failures are recorded in Reliability Monitor. B. Correct: Windows errors are recorded in Reliability Monitor. C. Correct: Application installs and uninstalls are recorded in Reliability Monitor. D. Incorrect: A service starting or stopping is typically recorded in the event log, not Reliability Monitor. E. Correct: Device driver failures are recorded in Reliability Monitor. 4. Correct Answer: A A. Correct: Reliability Monitor tracks application installations. It enables you to determine whether what applications have been installed and exactly when the installations occurred. B. Incorrect: Action Center can tell you if an application or device driver is not working properly. It cannot tell you when an application was installed. C. Incorrect: DCSs capture current performance and configuration data. They cannot tell you when in the past an application was installed. D. Incorrect: You can use Performance Monitor to view performance counters in real time or analyze performance data in a DCS. However, Performance Monitor does not record when an application was installed. 5. Correct Answer: A A. Correct: The lowest subscore determines the base score, even though this computer is not primarily used for three-dimensional graphics and gaming. B. Incorrect: 3.9 is the average of the subscores. However, the lowest subscore determines the base score, not the average. C. Incorrect: 5.1 is a significant score because the computer is used for processorintensive operations. However, the question asks for the base score, and the lowest
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subscore determines the base score. D. Incorrect: 5.3 is the highest subscore. The lowest subscore determines the base score, not the highest. Lesson 2: Configuring Performance Settings This lesson looks at configurations that can affect the performance of your computer and the tools that Windows 7 provides to display and reconfigure performance settings and resolve performance issues. If you do not like the tools provided, you can use Windows Management Instrumentation (WMI) scripts to write your own. Many factors affect performance, such as the appearance of your screen or your browser window, the services and processes that are running on your computer, and the priorities and processor affinity that you assign to various processes. Performance is affected by your cache and page file settings, by the services and applications that start automatically or run even when not required, and by what processes are running and the amount of resources each consumes. After this lesson you will be able to: Use a variety of Windows tools to inspect and configure settings that affect Windows 7 performance. Write WMI scripts that return system information and use the WMI tools. Troubleshoot performance issues. Estimated lesson time: 45 minutes
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Obtaining System Information Using WMI WMI lets you access system management information and is designed to work across networks. It provides a consistent model of the managed environment and a WMI class for each manageable resource. A WMI class is a description of the properties of a managed resource and the actions that WMI can perform to manage that resource. A managed resource is any object (computer hardware, computer software, service, or user account) that can be managed by using WMI. To use WMI, you write scripts that use the WMI scripting library. This library lets you work with WMI classes that correspond to managed resources. You can use this approach to manage resources such as disk drives, event logs, and installed software. You can use Windows Script Host (WSH), Microsoft Visual Basic Scripting Edition (VBScript), Microsoft JScript, or scripting languages such as ActivePerl to write WMI scripts that automate the management of aspects of your network. Typically, Windows Imaging (WIM) files have .vbs extensions. You can write scripts to manage event logs, file systems, printers, processes, registry settings, scheduled tasks, security, services, shared folders, and so on. You can create WMI-based scripts to manage network services, such as the Domain Name System (DNS), and to manage
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client-side network settings, such as whether a computer is configured with static Internet Protocol version 4 (IPv4) address settings or whether it obtains these settings from a Dynamic Host Configuration Protocol (DHCP) server. WMI scripts can monitor and respond to entries in an event log, modifications to the file system or the registry, and other real-time operating system changes. A WMI script works with WMI classes, which are representations of physical features or services on a computer. Each class can contain one or more objects or instances and the objects have attributes. You can display the value of each attribute or pass this on to another routine for analysis. Typically, you type WIM scripts using a text editor such as Microsoft Notepad and save them as .vbs files in a directory (for example, C:\WIM_Scripts) that you have created for this purpose. Be wary of using word processing software such as Microsoft Office Word for this process. Word processing software often uses different styles of quotation marks for different fonts (to cite one example), and this can cause syntax errors. You can run WIM scripts from an elevated command prompt by using the Cscript utility, and you can create batch files that run scripts at scheduled intervals or when triggered by an event. For example, the following WIM script accesses instances of the Win32_Battery class (there is only one) and prints out the value of the EstimatedChargeRemaining attribute. The code looks more complex than it actually is. You can substitute other WIM classes and find the values of their attributes by substituting the class and the attributes in this routine. strComputer = "." Set objSWbemServices = GetObject("winmgmts:\\" & strComputer) Set colSWbemObjectSet = objSWbemServices.InstancesOf("Win32_Battery") For Each objSWbemObject In colSWbemObjectSet Wscript.Echo "Remaining Charge: " & objSWbemObject.EstimatedChargeRemaining & " percent." Next Figure 13-29 shows the output from this script file, saved as Battery.vbs in the C:\WMI_Scripts folder. Note that if you run this script on a desktop computer, it should complete without error, but it does not give an output.
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