MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

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Questions and Answers
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3. What are page faults? Do you think a larger or smaller number of page faults indicates
better system performance? Why?
Each time data has to be retrieved from the page file on the hard disk for a process, the data
has been paged out of physical memory. This is known as a page fault. A smaller number of
page faults indicates better system performance because it is faster to retrieve data from RAM
than from a paging file on the hard drive.
4. What does CPU usage represent? In general, is system performance better with a
high CPU usage value or a low value?
CPU usage is the percentage of time that the processor is running a thread other than the idle
thread. You do not want the CPU to be a bottleneck to the computer. If the CPU usage is too
high, it could indicate that the CPU is limiting system performance.
Lesson 2 Practice: Using System Monitor
1. What objects and counters are monitored by default?
The objects and counters monitored by default are: Memory with the Pages/Sec counter; PhysicalDisk
with the Average Disk Queue Length counter; and Processor with the %Processor Time
counter.
5. Which performance object and counter are selected by default?
By default, the Processor object and the %Processor Time counter are selected.
Lesson 2 Review
1. Which of the following monitoring tools are included in the Performance console?
(Choose all answers that are correct.)
a. System Monitor snap-in
b. Task Manager snap-in
c. Performance Logs And Alerts snap-in
d. Task Scheduler
The correct answers are A and C. B is not correct because Task Manager is a stand-alone tool
(not a snap-in) and is not part of the Performance console. D is not correct because Task
Scheduler is a stand-alone tool and is not part of the Performance console.
2. Why should you monitor resources and overall system performance?
Monitoring resources and overall system performance helps you determine how well your computer
is currently performing, detect and eliminate bottlenecks, recognize trends so that you
can plan for future growth and upgrades, and evaluate the effects of tuning and configuration
changes on your computer.
3. What is a baseline, and what is a bottleneck?
A baseline is a measurement derived from collecting data over an extended period of time that
represents resource usage under normal conditions. A bottleneck is any component that slows
down the performance of the entire system.