Summary
This section discusses monitoring components to improve system performance:
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Components
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Processor (CPU)
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Hard disk
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Memory
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Network
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Terms to identify system performance statistics
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Counters to be familiar with:
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% Processor Time (processor utilization)
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% Disk Time (highest active time)
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Average Disk Queue Length
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Available, used, and free physical memory
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Memory committed bytes (commit charge)
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Page file usage
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Memory pages per second
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Network Utilization
Students will learn how to:
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Monitor system performance using Task Manager and Performance Monitor.
A+ 220-802 Exam Objectives:
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1.4 Given a scenario, use appropriate operating system features and tools.
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Administrative
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Task Manager
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Applications
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Processes
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Performance
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Networking
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Users
Lecture Focus Questions:
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Which components are commonly examined when you need to improve system performance?
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When examining system performance statistics, what is the difference between counters and objects?
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What is indicated when the processor utilization statistic is consistently over 90%?
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How can you remedy the situation when the amount of memory being used is close to the amount of RAM installed?
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When the page file usage is near 100%, what measures should you take to remedy the situation?
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What causes thrashing? Which statistic might be examined to identify thrashing?
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Which statistics should be examined when you are suspicious there might be a bottleneck at the network adapter?
Video/Demo Time
 9.3.1 Performance Monitoring 3:41
 9.3.2 Monitoring System Performance 16:32
Total 20:13
Number of Exam Questions
3 questions
Total Time
About 30 minutes
Section 9.4: Users and Groups Summary
This section discusses using user accounts to control who can use a computer. Details include:
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Windows default groups:
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Administrators
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Backup Operators
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Power Users
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Users
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Guests
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User Account Control (UAC)
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Settings for UAC in Windows 7:
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Always notify
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Notify me only when programs try to make changes to my computer
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Notify me only when programs try to make changes to my computer (do not dim my desktop)
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Never notify
Students will learn how to:
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Create limited and administrator users.
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Create groups and modify group membership.
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Supply credentials at the UAC prompt.
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Enable or disable UAC prompts.
PC Pro Exam Objectives: -
Configure local users and groups for a Windows system.
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Configure User Access Control (UAC) settings in Windows 7.
A+ 220-802 Exam Objectives:
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1.1 Compare and contrast the features and requirements of various Microsoft Operating Systems.
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Features:
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Aero, gadgets, user account control, BitLocker, shadow copy, system restore, ready boost, sidebar, compatibility mode, XP mode, easy transfer, administrative tools, defender, Windows firewall, security center, event viewer, file structure and paths, category view vs. classic view
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1.4 Given a scenario, use appropriate operating system features and tools.
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1.5 Given a scenario, use Control Panel utilities (the items are organized by "classic view/large icons" in Windows).
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Common to all Microsoft Operating Systems
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1.8 Explain the differences among basic OS security settings.
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User and groups
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Administrator
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Power user
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Guest
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Standard user
Lecture Focus Questions:
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What is the difference between a right and a permission?
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How can groups simplify security administration?
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How are the rights assigned to the Power User group different than the rights assigned to the Administrator group?
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What is the purpose of the Backup Operators group?
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On Windows Vista/7, a user must be a member of which group to install applications and add new device drivers?
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What is the purpose of the User Account Control (UAC)?
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When would you receive a prompt for credentials? How does that differ from the prompt for consent?
Video/Demo Time
9.4.1 Users and Groups 9:44
9.4.2 Managing Users and Groups 14:11
9.4.5 Managing UAC Settings 11:51
Total 35:46
Lab/Activity Number of Exam Questions
7 questions
Total Time
About 50 minutes
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