Rosewill Computer Case 422 Información técnica Pagina 18
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xvii
Contents
Chapter 15: Computer and Network Security .................................................................... 811
Security Overview ....................................................................................................................... 812
Security Policy ............................................................................................................................ 812
Physical Security ........................................................................................................................ 813
Protecting the Operating System and Data
......................................................................... 818
DEP (Data Execution Prevention) ......................................................................................... 822
Protecting Access to Local and Network Resources .......................................................... 823
Permissions ................................................................................................................................ 827
Internet Security ........................................................................................................................ 833
Security Incident Reporting .................................................................................................... 843
Wireless Network Security Overview ..................................................................................... 844
Wireless Authentication and Encryption .............................................................................. 844
Default Settings .......................................................................................................................... 847
More Wireless Options .............................................................................................................. 848
Wireless Security Conclusion .................................................................................................. 848
Wireless Network Troubleshooting ........................................................................................ 849
Mobile Security ........................................................................................................................... 850
A Final Word About Security .................................................................................................. 851
Soft Skills—Building Customer Trust .................................................................................. 851
Chapter Summary ...................................................................................................................... 852
Key Terms .................................................................................................................................... 853
Review Questions ....................................................................................................................... 853
Exercises ....................................................................................................................................... 854
Lab 15.1 Encrypting a File and Folder .................................................................. 854
Lab 15.2 Using Windows Vista/7 System Protection ........................................ 856
Lab 15.3 Making a Folder Private in XP ............................................................... 857
Lab 15.4 Sharing a Folder in Windows XP .......................................................... 858
Lab 15.5 Sharing a Folder in Windows 7 ............................................................ 860
Lab 15.6 Creating a Local Security Policy for Passwords ................................. 864
Lab 15.7 Windows Defender in Windows 7
......................................................... 868
Lab 15.8 Configuring a Secure Wireless Network .............................................. 869
Activities ....................................................................................................................................... 870
Glossary ....................................................................................................................................................873
Index ............................................................................................................................................................. 911
- Guide to PCs 2
- Complete CompTIA 3
- Contents at a Glance 4
- Contents 10
- Contents 11
- About the Author 19
- Dedication 20
- Acknowledgments 20
- We Want to Hear from You! 21
- Reader Services 21
- It Pays to Get Certified 22
- CompTIA Career Pathway 23
- Steps to Certication 23
- Content Seal of Quality 24
- Why CompTIA? 24
- Introduction 25
- Organization of the Text 26
- Features of This Book 27
- IT work 31
- CompTIA A+ Exam Objectives 32
- CompTIA Exam Objectives 33
- Disassembly 36
- Disassembly Overview 37
- Electrostatic Discharge (ESD) 37
- Opening the Case 41
- Cables and Connectors 41
- Snug connections 43
- Storage Devices 45
- Motherboards 46
- Mobile Device Issues 47
- Reassembly 49
- Preventive Maintenance 49
- Basic Electronics Overview 51
- Electronics Terms 51
- Good connection Broken wire 53
- Power Supply Overview 54
- Power Supply Form Factors 55
- Tech Tip 56
- Purposes of a Power Supply 58
- Power Supply Voltages 60
- Mobile Device Power 61
- Keep Li-ion batteries cool 63
- Power Interface) 64
- Windows power management 65
- Watch the wattage 68
- Solving Power Supply Problems 70
- Adverse Power Conditions 71
- Adverse Power Protection 72
- Surge Protectors 72
- Line Conditioners 74
- Figure 4.32 Line conditioner 75
- Figure 4.33 Sine wave and 75
- Standby Power Supply (SPS) 77
- Electrical Fires 78
- Computer Disposal/Recycling 79
- Chapter Summary 81
- Review Questions 82
- Exercises 85
- External Cables 86
- Computer Case Removal 86
- Adapter Placement 86
- Motherboard 88
- Lab 4.3 Amps and Wattage 89
- Lab 4.4 Continuity Check 89
- Lab 4.5 Pin-Out Diagramming 90
- Lab 4.6 Fuse Check 91
- Lab 4.7 Using a Multimeter 91
- Figure 4.38 AC outlet 93
- GND to hot 120VAC 93
- GND to neutral 0VAC 93
- Hot to neutral 120VAC 93
- +5 volts 95
- +12 volts 95
- Activities 97
- Critical Thinking Skills 99
- A+ Certification Exam Tips 99
- Complete PC Restore tool 107
- FireWire 114
- IRQs (Interrupt Requests) 120
- PBs (petabytes) 129
- Setup program 136
- SSDs (solid state drives) 138
- SSDs (solid state drives) 139
- TBs (terabytes) 140
- troubleshooting 143
- video 145
- Windows 147
- Windows Vista 148
- Windows Vista 149
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