Entire Site
Free Trial
Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
- Create BookmarkCreate Bookmark
- Create Note or TagCreate Note or Tag
- DownloadDownload
- PrintPrint
Chapter 15. Optimizing Windows 7 Systems > Answers to Review Questions
Answers to Review Questions
| 1. | Answer B is correct. Windows ReadyBoost boosts system performance by using USB flash devices as additional sources for caching. Answer A is incorrect because SuperFetch utilizes machine learning techniques to analyze usage patterns in order to enable Windows 7 to make intelligent decisions about what content should be present in system memory at any given time. Answer C is incorrect because ReadyDrive boosts system performance on mobile computers equipped with hybrid drives. Answer D is incorrect because the Windows Memory Diagnostic tool is used to test memory and not to increase performance. |
| 2. | Answer A is correct. By default, processor scheduling is set to Programs, which assigns more processor resources to the foreground programs. Answer B is incorrect because when Background services is selected, equal amounts of processor resources go to all running services. Answers C and D are incorrect because Balanced and Alternating do not exist in processor scheduling. |
| 3. | Answer C is correct. To get the benefit of ReadyBoost, your USB device needs to use fast flash memory. Therefore, if you insert a USB flash device that consists of slow and fast flash memory, ReadyBoost only uses the fast flash memory. Answers A and B are incorrect. Because ReadyBoost recognizes some of the memory, you can assume that the USB flash device meets the minimum requirements, so Answer D is incorrect. |
| 4. | Answers B and C are correct. For standard users to run the performance monitor, you must add them to the Performance Monitor Users group or Performance Log Users group, or you can make them administrators. Because there is no need to make them administrators, it is best to add them only to the Performance Monitor group or the Performance Log Users group. The difference between the two groups is that the Performance Log Users group can also create and modify Data Collector Sets but the Performance Monitor group cannot. Therefore, Answer D is incorrect. Answer A is incorrect because Power Users groups are only there for backward compatibility for older applications created for older versions of Windows. |
| 5. | Answer B is correct. To see how much paging takes place between physical RAM and the paging file (disk space acting as RAM), you refer to the pages\sec measurement. A high value indicates that you are utilizing the paging often, which means you are running out of physical memory. Answer A is incorrect because CPU utilization shows how hard the processor is working. Answer C is incorrect because network utilization indicates how much bandwidth is being used on the network. Answer D is incorrect because a high value for Interrupts\sec might indicate a faulty device or device driver. |
| 6. | Answer C is correct. Resource Monitor shows you the amount of processor and memory utilized for a process in addition to indicating which applications are using files. Windows Resource Monitor is a powerful tool for understanding how your system resources are used by processes and services. Answer A is incorrect because System Information shows the hardware and software running on a computer. Answer B is incorrect because the System Configuration is a troubleshooting tool to help you isolate problematic startup programs. Answer D is incorrect because the Windows Experience Index is used to gauge the performance of a system. |
| 7. | Answer C is correct. If the Performance Monitor shows no or little available memory or has a high pages/sec (20 or higher) or the paging file usage is high, you should increase the memory. Therefore, the other answers are incorrect. |
| 8. | Answer B is incorrect. Most likely your paging file is too large, which causes excessive paging because the paging file (disk) is much slower than RAM. Therefore, you should add more memory. Answer A is incorrect because if the processor was too busy, it would consistently be greater than 80%. Answer C is incorrect because the network traffic is low. Answer D is incorrect because the paging file has grown beyond 1.5 times memory. If you have a bottleneck for disk, you have to look at additional performance counters such as the length of the disk queue. |
| 9. | Answer C is correct. An important feature in Performance Monitor is the Data Collector Set (DCS), which groups data collectors into reusable elements. After a DCS is defined, you can schedule the collection of data using the DCS or see it in real time. Answer D is incorrect because the Windows Experience Index measures the capability of your computer’s hardware and software configuration and expresses this measurement as a number called a base score. Answers A and B are incorrect because alert counter and task parameters are not part of performance monitoring or do not exist. |
| 10. | Answer E is correct. A computer with a base score of 6.0 or 7.0 has a faster hard disk and can support high-end, graphics-intensive experiences, such as multiplayer and 3-D gaming and recording and playback of HDTV content. Therefore, the other answers are incorrect. |
