Network+ Exam Cram 2 (Exam Cram N10-003)

Network+ Exam Cram 2About the Author Mike Harwood (MCSE, A+, Network+, Server+, Linux+) has held a number of roles in the computer field including PC repair, network management, consulting, and technical writing. Mike is also the coauthor of numerous computer books, including the Network+ Exam Prep from Que Publishing. He is also a courseware developer, and a regular technology presenter for CBC Radio. When not working, Mike stays as far away from keyboards as possible. Drew Bird (MCSE, MCNE, Network+, Linux+, Server+) has been in the IT industry since 1988. Over the years he has designed, implemented, and administered networks of all shapes and sizes. In addition to technical training and consulting assignments, Drew has authored a number of technical articles and is a frequent contributor to technology websites. Away from work, Drew enjoys most outdoor activities but is especially keen on mountain biking, kayaking, and skiing. © Copyright Pearson Education. All rights reserved.

Introduction.

Self-Assessment.

1. Introduction to Networking.

    Introduction

    LANs, WANs, and PANs

      LANs

      WANs

      PANs

    Network Models

      Peer-to-peer Networking

      Client/Server Networking Model

    Centralized and Distributed Computing

    Network Topologies

      Bus Topology

      Ring Topology

      Star Topology

      Mesh Topology

      Wireless Topology

    IEEE and Networking Standards

      802.2 IEEE Standard

      802.3 IEEE Standard

      802.5 IEEE Standard

    FDDI

      802.11 IEEE Standards

    Infrared Wireless Networking

    Bluetooth

    Spread Spectrum Technology

    FHSS, DSSS, and 802.11 Standards

    Establishing Communications Between Wireless Devices

    Factors Affecting Wireless Signals

      Interference Types

      Wireless Antennas

      Antenna Coverage

    Review and Test Yourself

      The Facts

      Key terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

2. Cabling and Connectors.

    Introduction

    General Media Considerations

      Broadband Versus Baseband

      Simplex, Half Duplex, and Full Duplex

      Media Interference

      Attenuation

      Data Transmission Rates

    Network Media

      Twisted-pair Cabling

      Coaxial

      Fiber-optic Cable

    Media Connectors

      BNC Connectors

      RJ-11 Connectors

      RJ-45 Connectors

      F-Type

      Fiber Connectors

      IEEE1394

      Universal Serial Bus (USB)

    IEEE 802.3 Standards

      10 Mbps Networking Standards

      Fast Ethernet

      Gigabit Ethernet

      10 Gigabit Ethernet

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

3. Networking Devices.

    Introduction

    Hubs

    MSAU

    Switches

      Hub and Switch Cabling

    Bridges

      Bridge Placement and Bridging Loops

      Types of Bridges

    Routers

      Static Routing

      Dynamic Routing

    Gateways

    CSU/DSU

    Network Cards

      ISDN Adapters

    Wireless Access Points

    Modems

    Transceivers (Media Converters)

    Firewalls

    MAC Addresses

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

4. OSI Model and Network Protocols.

    Introduction

    OSI Seven Layer Model

      Physical Layer (Layer 1)

      Data-link Layer (Layer 2)

      Network Layer (Layer 3)

      Transport Layer (Layer 4)

      Session Layer (Layer 5)

      Presentation Layer (Layer 6)

      Application Layer (Layer 7)

    OSI Model Summary

    Identifying the OSI Layers at Which Various Network Components Operate

    Differentiating Among Protocols

      Connectionless and Connection-oriented Protocols

      Internetwork Packet Exchange/Sequenced Packet Exchange

      NetBEUI Protocol

      AppleTalk

      The TCP/IP Protocol Suite

      Protocol Summary

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

5. TCP/IP (Transmission Control Protocol/Internet Protocol).

    Introduction

      IP Addressing

      IPv4

      IP Address Classes

      Subnet Mask Assignment

      Default Gateways

      IPv6 Addressing

      Subnetting

    Identifying the Differences Between Public and Private Networks

      Private Address Ranges

    Assigning IP Addresses

      Static Addressing

      Dynamic Addressing

      APIPA

      TCP/IP Protocols

    TCP/UDP Port Functions

    Network Services

      Domain Name Service (DNS)

      Network Address Translation (NAT) and Internet Connection Sharing (ICS)

      Windows Internet Name Service (WINS)

      Simple Network Management Protocol (SNMP)

      Network File System (NFS)

      Zero Configuration (Zeroconf)

      Server Message Block (SMB)

      Apple File Protocol (AFP)

      Line Printer Daemon (LPD)

      TCP/IP Service Summary

    Review and Test Yourself

      The Facts

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

6. WAN Technologies Internet Access, and Security Protocols.

    Introduction

    WAN Technologies

      Switching Methods

      Circuit Switching

      Integrated Services Digital Network (ISDN)

      Fiber Distributed Data Interface (FDDI)

      T-carrier Lines

      SONET/OC-x Levels

      X.25

    Internet Access Technologies

      xDSL Internet Access

      Cable Internet Access

      POTS/PSTN (Plain Old Telephone Service/Public Switched Telephone Network)

      Satellite Internet Access

      Wireless Internet Access

    Remote Access Protocols and Services

      Remote Access Service (RAS)

      SLIP

      PPP

      PPTP

      Virtual Private Networks

      Remote Desktop Protocol

    Security Protocols

      IP Security (IPSec)

      Layer 2 Tunneling Protocol (L2TP)

      Secure Sockets Layer (SSL)

      WEP

      WPA

      802.1x

    Authentication Protocols

      Remote Authentication Dial-In User Service (RADIUS)

      Kerberos

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

7. Network Operating Systems and Client Connectivity.

    Introduction

    Network Operating Systems

      Linux/UNIX

      Mac OS X Server

      Novell NetWare

      Windows 2000 and Windows Server 2003

      AppleShare IP

    Operating System Interoperability

      Using Windows with NetWare

      Using Windows and Linux Servers

      Using NetWare and Linux Servers

    Operating System Client Support

      Windows Server Client Support

      NetWare Server Client Support

      Linux Server Client Support

    Configuring a Client to Access and Use Network Resources

      Choosing a NIC

    Using Network Tools

      Wire Crimpers

      Punchdown Tools

      Tone Generators (and Tone Locators)

      Media Testers

      Hardware Loopback Connectors

    Configuring Remote Connectivity

      Physical Connections

      Protocols

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

8. Network Security.

    Introduction

    Firewalls

      Packet-filtering Firewalls

      Circuit-level Firewalls

      Application Gateway Firewalls

    Proxy Servers

      Caching Proxy Servers

      Using a Proxy Server

    Understanding How Security Affects a Network

      Blocking Port Numbers

      Port Blocking and Network Users

      Authentication

      Encryption

    Extranets and Intranet

      Intranets

      Extranets

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

9. VLANs, Antivirus, Fault Tolerance, and Disaster Recovery.

    Introduction

    Virtual LANs

      VLAN Membership

    Viruses, Virus Solutions, and Malicious Software

      Trojans, Worms, Spyware, and Hoaxes

      Protecting Computers from Viruses

    Fault Tolerance

      Disk-level Fault Tolerance

      Server and Services Fault Tolerance

      Link Redundancy

      Using Uninterruptible Power Supplies

    Disaster Recovery

      Full Backup

      Differential Backup

      Incremental Backup

      Tape Rotations

      Backup Best Practices

      Hot and Cold Spares

      Hot, Warm, and Cold Sites

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

10. Troubleshooting Connectivity.

    Introduction

    Troubleshooting with Diagnostic Utilities

      The Trace Route Utility (tracert/traceroute)

      ping

      ARP

      The netstat Command

      nbtstat

      The ipconfig Command

      ifconfig

      The winipcfg Command

      nslookup

    Interpreting Visual Indicators

      LEDs on Networking Devices

      LEDs on NICs and Other Devices

    Troubleshooting Remote Connectivity

      Troubleshooting Physical Connectivity

      Troubleshooting Authentication Failure

      Troubleshooting Protocol Configuration Problems

      Troubleshooting Small Office/Home Office Router

    Identifying and Troubleshooting Client Connectivity Problems

      Protocol Errors

      Authentication

      Permissions Errors

      Physical Connectivity Errors

    Troubleshooting Checklists

      Troubleshooting Cabling Problems

      Troubleshooting Operating System Connectivity

      Troubleshooting Network Printing

      Troubleshooting Data Access

      Troubleshooting NICs

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

11. Troubleshooting and Supporting the Network.

    Introduction

    Predicting the Impact of Modifying, Adding, or Removing Network Services

      Adding, Modifying, or Removing DHCP

      Adding, Modifying, or Removing WINS

      Adding, Modifying, or Removing DNS

    Identify and Troubleshoot Errors with a Particular Physical Topology

      Star Topology

      Ring Topology

      Bus Network Errors

      Mesh Network Errors

    Infrastructure Troubleshooting

      Troubleshooting Network Media

      Troubleshooting Infrastructure Hardware

      Troubleshooting a Wireless Infrastructure

    Troubleshooting Steps and Procedures

      Identify the Symptoms and Potential Causes

      Identifying the Affected Area

      Establishing What Has Changed

      Selecting the Most Probable Cause of the Problem

      Implement an Action Plan and Solution Including       Potential Effects

      Testing the Results

      Identify the Results and Effects of the Solution

      Documenting the Solution

    Review and Test Yourself

      The Facts

      Key Terms

      Exam Prep Questions

      Answers to Exam Prep Questions

    Need to Know More?

12. Practice Exam 1.

13. Answer Key to Practice Exam I.

    Answers to Exam Questions

    Answers and Explanations to Practice Exam I

14. Practice Exam 2.

15. Answers to Practice Exam 2.

    Answers to Exam Questions

    Answers and Explanations to Exam Questions

Appendix A: CD Contents and Installation Instructions.

    Multiple Test Modes

      Study Mode

      Certification Mode

      Custom Mode

      Missed Question Mode

      Non-Duplicate Mode

    Random Questions and Order of Answers

    Detailed Explanations of Correct and Incorrect Answers

    Attention to Exam Objectives

    Installing the CD

      Creating a Shortcut to the MeasureUp Practice Tests

    Technical Support

Glossary.

Index.