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Chapter 14 Virtual Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 725
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .726 What Is a Virtual System? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .726 Virtual System 1z0-060 actual test 1z0-060 exam 1z0-060 exam questions Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .726 How Virtual Systems Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .728 Classifying Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .728 Virtual System Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .729 Configuring Virtual Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .729 Creating a Virtual System . . . . . . . . . . . . . . . . . . . . . . . . .  1z0-060

1Z0-060

1z0-060 exam. . . . . . . . . . . . . . . . . . . .729 Network Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .731 Virtual System Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .739 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .741 Solutions Fast Track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .742 Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .743

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745

Foreword

As we expand networks to include new services, we must continually strive to secure them. It is not an inherently easy 1z0-060 exam thing to do. First, we need to balance growth and total security without duplicating operations. Second, our networks need to support the mobility of our workforces as the number of remote sites that are connected continues to multiply. And finally, while one cannot predict what will be needed for tomorrow, we must build in the flexibility to adapt to whatever unknown priorities may arise in the near future. These challenges are why Juniper Networks is so focused on providing mission-critical products for today with the 1z0-060 exam guide capacity to adapt for tomorrow’s shifting priorities. And the authors of this book have done a wonderful job collecting and collating what we need to know to make intelligent networking decisions.

Delivering performance and extensibility is one of the key traits of Juniper Networks.We allow networks to grow without 1z0-060 examcollection duplicating operations, all the while securing them from multiple levels of potential attack. As you read through this book, please remember that performance and flexibility are fundamental to how Juniper Networks’ VPN, firewall, and intrusion prevention products are built and how they will work for you. –Scott Kriens, CEO, Juniper Networks November 2006

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Chapter 1

Networking, Security, and the Firewall
Solutions in this chapter:

Understanding Networking 1z0-060 exam Understanding Security Basics Understanding Firewall Basics

Summary Solutions Fast Track Frequently Asked Questions
1

2

Chapter 1 ?Networking, Security, and the Firewall

Introduction
Every organization that connects to the Internet has business partners and other external entities, requiring them to use 1z0-060 firewall technology. Firewalls are a required component of your data network, and provide a protective layer of security. Security risks have greatly increased in recent years, and so the call for a stronger breed of firewall has been made. In the past, simple packet filtering firewalls allowing access to your internal resources have helped to mitigate your network’s 1z0-060 exam topics  risk.The next development was stateful inspection, allowing you to monitor network sessions instead of single packets.Today’s risks are far greater, and require a new generation of devices to help secure our networks’ borders from the more sophisticated attacks.The industry calls these firewalls L4/L7 firewalls. L4/L7 stands for Layer 4 through Layer 7, which refers to layer 4 through layer 7 of the OSI security model.These firewalls are often equipped with IPS, and are generally 1z0-060 exam preparation known as firewalls with application layer support. Later in this chapter, we delve deeper into L4/L7 firewalls. Firewalls police your network traffic.

A firewall is a specialized device that allows or denies traffic based upon administratively defined policies.They contain technologies to inspect your network’s traffic.This technology is not something that 1z0-060 is exclusive to firewalls, but firewalls are designed specifically for inspecting traffic, and therefore do it better than any other type of device. Many networks can have millions of packets transverse it in a short period of time. Some firewall models are built upon software, like firewalls from Cisco Systems, Checkpoint, and Secure Computing.

Conversely, such as with the Juniper 1z0-060 exam Networks NetScreen firewall, they can be constructed around a purpose-built operating system and hardware platform. Juniper Networks (Juniper) NetScreen firewall appliances were originally designed to support 100-Mbps and 1-Gbps connection speeds of early secure Internet service providers such as Korea Telecom, as well as customers like NASA. Performance of the stateful packet inspection method of firewalling was crucial for these early deployments.Therefore, Juniper firewalls are engineered much like layer 3 switches rather than software only璪ased firewalls.

The Juniper NetScreen firewall product line has complete offerings from the home office to the carrier-class networks. In this chapter, we will review networking basics. Security requires a strong basic knowledge of networking protocols. In our first section, “Understanding Networking,” we will look at networking from a top-down approach.This section starts with the basic ideas of networking models and then works into full networking communications. We will also discuss the components and prerequisites of IP addresses and how they are divided up to make networks. We will next look at networking in general by breaking it down to a layered approach. This will help you understand the flow of networking. Each specific layer in the networking model has a purpose. Working together, these layers allow for data to seamlessly pass over the network between systems.

An example of browsing a 1z0-060 exam preparation 1z0-060 exam dumps 1z0-060 practice exam Web site will be used.You will see all of the effort it takes just to fetch a Web page. We will then focus on the TCP/IP protocol suite.This is the most commonly used networking protocol, and is the protocol used for Internet communications. Finally, we will take a look at network security fundamentals.

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Multilayer Switch Operation 1z0-060 pdf 1z0-060 pdf download Types of Multilayer Switching Follow That Packet! Multilayer Switching Exceptions
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Exam Preparation Tasks
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Complete Tables and Lists from Memory
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Chapter 3 Switch Port Configuration
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Foundation Topics
Ethernet Concepts
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Scaling Ethernet
Fast Ethernet
Gigabit Ethernet
10-Gigabit Ethernet
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Duplex Operation over Ethernet Links
Connecting Switches and Devices
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Switch Port Configuration
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Port Duplex Mode
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Enable and Use the Switch Port
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Part II Building a Campus Network Chapter 4 VLANs and Trunks
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VLAN Trunk Configuration Configuring a VLAN Trunk Trunk Configuration Example
Troubleshooting VLANs and Trunks
Voice VLANs Voice VLAN Configuration Verifying Voice VLAN Operation
Wireless VLANs

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Motherboards and Processors Memory 1z0-060 1z0-060 exam Storage Displays Input Devices Expansion Bus and Ports Docking Stations Power Systems Managing Power and Removing Devices Understanding Laptop Power Management Managing Power in Windows Removing Laptop-Specific Hardware Troubleshooting and Performing Preventative Maintenance on Laptops Diagnosing Laptop Problems Performing Preventative Maintenance Summary Exam Essentials Review Questions Answers to Review Questions Chapter 4 Understanding Operating Systems Understanding Operating Systems Operating System Terms and Concepts Microsoft Windows Alternative Operating Systems Using Operating Systems The Windows Interface What’s in a Window? Control Panel The Command Prompt The Registry Virtual Memory Windows System Files Disk Management File Management Summary Exam Essentials Review Questions Answers to Review Questions

144 145 147 149 154 156 162 162 163 163 165 168 170 170 172 174 174 175 179 181 184 185 186 191 194 194 209 212 220 221 223 224 227 231 240 241 242 246

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Contents 1z0-060 study guide pdf
1Z0-060
1z0-060 practice test Chapter

5

Understanding Basics of Installing, Configuring, Optimizing, and Upgrading Operating Systems Installing Operating Systems Installation Prerequisites Preparing the Computer for Installation Windows XP Installation Post-Installation Routines Upgrading the Operating System Upgrade Prerequisites Upgrading to Windows 2000 Upgrading to Windows XP Finalizing Your Upgrade Installing Device Drivers Rights and Security Issues Basic Procedure for Device Installation Windows Version-Specific Installation Items Optimizing Windows 2000 and Windows XP Managing Virtual Memory Defragmenting Disks Using Disk Caches Managing Temporary Files Summary Exam Essentials Review Questions Answers to Review Questions

249 251 251 258 264 269 270 271 273 279 280 280 281 282 283 286 286 290 293 295 296 297 299 303

Chapter

6

Identifying Operating System Troubleshooting 1z0-060 exam questions jumpexam and Diagnostic Procedures Troubleshooting Steps Step 1: Talk to the Customer Step 2: Gather Information Step 3: Eliminate Possibilities Step 4: Evaluate Your Results Step 5: Document Your Work Understanding Boot Sequences Listing the Important Files Identifying Important Files in Windows 2000/XP Understanding the Windows 2000/XP Boot Process Advanced Startup Options Using the Recovery Console Creating Boot Disks or an Emergency Repair Disk Identifying Windows File-Related Problems System Files Not Found

305 308 308 309 309 310 310 310 310 312 313 314 315 317 319 320

Contents

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Configuration File Issues Swap File Issues Windows Boot Issues Troubleshooting Other Common Problems Understanding Windows Reporting Identifying Windows-Based Troubleshooting Utilities Disk Management Tools System Management Tools File Management Tools Identifying Diagnostic Resources User/Installation Manuals Internet/Web Resources Training Materials Performing Preventative Maintenance on Operating Systems Using Recommended Hardware Obtaining Current Drivers Installing Windows Properly Shutting Down Properly Updating Windows Scheduling Backups Creating Restore Points Guarding against Viruses Summary Exam Essentials Review Questions Answers to Review Questions Chapter 7 Understanding the Basics of Printers and Scanners Understanding Printer and Scanner Fundamentals Impact Printers Bubble-Jet Printers Laser Printers Printer Interfaces and Supplies Scanners and Their Components Installing, Configuring, and Upgrading Printers and Scanners Printer and Scanner Installation Procedures Optimizing Printer and Scanner Performance Troubleshooting Printers and Scanners Dot-Matrix Printer Problems Bubble-Jet Printer Problems Laser and Page Printer Problems Scanner Troubleshooting Summary Exam Essentials

320 321 321 322 325 326 326 327 333 334 335 335 335 336 336 337 337 337 338 339 343 346 347 348 350 354

357 359 360 362 370 382 392 396 396 400 400 400 403 404 414 414 415

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Contents

Review Questions Answers to Review Questions Chapter 8 Networking Fundamentals Understanding Networking Principles Understanding Networking Fundamentals Identifying Common Network Media Understanding Networking Components Installing, Configuring, and Troubleshooting Networks Installing and Configuring Network Interface Cards Obtaining Wired and Wireless Internet Connections Troubleshooting Network Interface Cards Summary Exam Essentials Review Questions Answers to Review Questions Chapter 9 Understanding Network Security Fundamentals Understanding Security Authentication Technologies Working with Hardware and Software Security Understanding Wireless Security Understanding Data and Physical Security Security Solutions BIOS Security Malicious Software Protection Data Access Backup Procedures Data Migration Data Remnant Removal Password Management Locking Workstations Identifying Security Problem Areas Summary Exam Essentials Review Questions Answers to Review Questions Chapter 10 Identifying Safety and Environmental Issues Understanding Safety and Environmental Issues Identifying Potential Safety Hazards Identifying Environmental Concerns Using Safety Documentation Using Appropriate Repair Tools Handling Accidents

417 421 423 425 426 449 460 463 463 464 475 475 476 477 481 483 485 486 491 498 501 507 507 508 508 512 512 513 513 513 513 515 516 517 521 523 525 526 532 535 542 544

Contents

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Applying Proper Safety and Disposal Procedures Preventing Electrostatic Discharge (ESD) Working in a Safe Environment Handling Equipment Following Disposal Procedures Summary Exam Essentials Review Questions Answers to Review Questions Chapter 11 Understanding Professionalism and Communication Using Good Communication Skills Elicit Problem Symptoms from Customers Have the Customer Reproduce the Error Identify Recent Changes Use the Collected Information Using Appropriate Behavior Punctuality Accountability Flexibility Confidentiality Respect Privacy Putting It All in Perspective Summary Exam Essentials Review Questions Answers to Review Questions Chapter 12 Working with Personal Computer Components Removing, Installing, and Configuring Components Selecting Components Motherboards, CPUs, Memory, and Adapter Cards Storage Devices Power Supplies Display Devices Input Devices Cooling Systems Using Tools and Diagnostic Procedures for Personal Computer Components Understanding Computer Resources Determining Available Resources

545 546 549 551 552 555 555 556 560

563 566 569 569 570 570 1z0-060 dumps 1z0-060 pdf 570 570 571 572 572 572 575 575 576 576 577 581 583 587 587 590 594 599 600 604 610 613 614 617

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Contents