You are previewing Network+ Study Guide & Practice Exams.
O'Reilly logo
Network+ Study Guide & Practice Exams

Book Description

The Network+ exam was last updated in 2001. The new exam, slated to go live in early 2005, marks a major update in the exam's coverage of new technologies. All existing books on the market will be instantly obsolete. The Network+ exam is a vendor-neutral exam that measures a technician's networking knowledge. Vendor-neutral exams represent the quickest growing certifications on the market today. In addition, Network+ certification is also accepted by Microsoft as an elective for its MCSA certification, making it an even more popular choice for certification candidates who want to quickly move on to Microsoft certification.

Table of Contents

  1. Copyright
  2.  
  3. Acknowledgments
  4. Lead Author and Technical Editor
  5. Contributing Authors
  6. Technical Editor and Reviewer
  7. CompTIA’s Network+ Exam N10-003 Objectives Map and Table of Contents
    1. Exam Objective Map
  8. Introduction
    1. What Is Network+?
    2. About CompTIA
    3. About the Book
    4. Network+ Objectives
      1. Media and Topologies 20%
      2. Protocols and Standards 25%
      3. Network Implementation 23%
      4. Network Support 32%
    5. Network+ Study Tactics
    6. How to Obtain Network+
    7. Exam Day Experience
    8. Links of Reference
    9. Pedagogical Elements and Practice Test
  9. I. Media and Topologies
    1. 1. Network Fundamentals
      1. Introduction
      2. What is a Network?
        1. What is an Internetwork?
        2. A Brief History on Networking and Communications
          1. Early Telecommunications and Computers
          2. The Space Age to the Information Age
          3. Hardware and Operating Systems
          4. The Information Age Appears
      3. Networking Models
        1. Centralized
        2. Decentralized (Distributed)
        3. Peer-to-Peer
        4. Client/Server
      4. Network Types and Topologies
        1. Network Types
          1. LAN and WAN
          2. MAN
          3. SAN
          4. PAN
          5. CAN
        2. Network Topologies
          1. Bus
          2. Star (Hierarchical)
          3. Mesh
          4. Rings
          5. Wireless
      5. IEEE Committee
        1. History and Fundamentals of IEEE
        2. 802 Standards
          1. OSI and 802
          2. Table of Standards (Complete)
          3. Table of Standards (Testable)
            1. 802.2 LLC
            2. 802.3 CSMA/CD
            3. 802.5 Token Ring
            4. 802.11 Wireless
        3. Request for Comments
          1. Using RFCs
      6. Summary of Exam Objectives
      7. Exam Objectives Fast Track
        1. What is a Network?
        2. Networking Models
        3. Network Types and Topologies
        4. IEEE
      8. Exam Objectives Frequently Asked Questions
      9. Self Test
      10. Self Test Quick Answer Key
    2. 2. Network Media
      1. Introduction
      2. Cabling and Connectors Overview
        1. Fundamentals of Cabling
        2. Fundamentals of Connectors
      3. Media Issues
        1. Interference
        2. Bandwidth
        3. Length Problems
        4. Security Issues
        5. Installation
        6. Troubleshooting
        7. Repair
      4. Cable Testers and Troubleshooting
        1. Tone Generator (Fox and Hound)
        2. Time Domain Reflectometer
        3. Wire Map Tester
        4. Oscilloscope
        5. Network Monitors and Protocol Analyzers
        6. Crossover Cable
        7. Hardware Loopback Adapter
        8. Cable Tester
      5. Simplex, Half-Duplex, and Full Duplex
      6. Cabling
        1. Copper Cabling
        2. Fiber Cabling
        3. Preparing Copper Cable
          1. Twisted-Pair Color Codes
        4. Cable Installation
        5. LAN Technologies and Standards
          1. Ethernet
          2. Fast Ethernet
          3. Gigabit Ethernet
      7. 802.3 Media Standards
        1. 10Base2, 10Base5, and Arcnet
        2. 10BaseT and Beyond
          1. 10BASET
          2. 10BaseFL
          3. 100BaseTX
          4. 100BaseFX
          5. 1000BaseT
          6. 1000BaseCX
          7. 1000BaseSX
          8. 1000BaseLX
      8. Connectors
        1. Twisted-Pair and Coaxial Cable Connectors
          1. D Connectors
          2. RJ Connectors
            1. RJ-11
            2. RJ-45
            3. RJ-48 and RJ-25
          3. DIX
          4. BNC
          5. RG and F-Type Connectors
        2. Fiber Connectors
          1. Standard Connectors
          2. Straight Tip Connectors
          3. Local Connectors
          4. Mechanical Transfer Registered Jacks
      9. Recognizing Category 3, 5, 5e, and 6 UTP, STP, Coaxial cable SMF, Optic Cable MMF, and Optic Cable
        1. Category 3, 5, 5e, and 6 UTP
        2. STP
        3. Coaxial cable
        4. Single Mode Fiber Optic Cable
        5. Multimode Fiber Optic Cable
      10. Other Media
        1. IEEE1394 (FireWire)
        2. Wireless Media
        3. Transceivers (Media Converters)
      11. Summary of Exam Objectives
      12. Exam Objectives Fast Track
        1. Cabling and Connectors Overview
        2. Media Issues
        3. Cable Testers and Troubleshooting
        4. Simplex, Half-Duplex, Full Duplex
        5. Cabling
        6. Media Standards
        7. Connectors
        8. Media Types
        9. Other Media
      13. Exam Objectives Frequently Asked Questions
      14. Self Test
      15. Self Test Quick Answer Key
    3. 3. Network Devices
      1. Introduction
      2. Network Devices
        1. Historical Network Devices
          1. Hubs
            1. Passive Hubs
            2. Active Hubs
            3. Switching Hubs
          2. Repeaters
          3. Bridges
            1. Network Segmentation
          4. Multistation Access Units
          5. Concepts of Convergence
        2. The Modem and Other Adapters
          1. Analog Modems
          2. DSL and Cable Modems
          3. ISDN Adapters
            1. History of ISDN
            2. ISDN Channels
            3. ISDN Interfaces
            4. ISDN Devices
            5. ISDN Reference Points
            6. Identifiers
            7. Advantages of ISDN
          4. CSU/DSU
        3. Network Interface Cards
          1. Installing a NIC
          2. NIC Types and Operation
          3. Transceivers
        4. Modern Network Devices
          1. Switches
            1. Multiport Bridging
            2. Network Performance Improvement with Switching
            3. Layer 2 Switches
            4. Layer 3 Switches
            5. Layer 4 and Beyond
          2. Routers
            1. Understanding Static and Dynamic Routing
            2. Switching Routers
          3. Security Integration
            1. Convergence of Security
            2. Firewalls
            3. Firewall Architecture
            4. Dual-Homed Host Firewalls
            5. Screened Host Firewalls
            6. Screened Subnet Firewalls
            7. Firewall Types
            8. Packet Level Firewall
            9. Application Level Firewall
            10. Circuit Level Firewall
            11. Firewall Features
            12. DMZ
            13. ACLs
            14. Proxy Server (Caching Appliances)
            15. Tunnels and Encryption
            16. VPNs
            17. Site-to-Site VPN
            18. Remote Access VPN
            19. IDS
          4. Other Devices and Technologies
            1. Gateways
            2. Default Gateways and Subnetworks
            3. Voice and IP Telephony
            4. Wireless
            5. NAS
            6. SANs
      3. Summary of Exam Objectives
      4. Exam Objectives Fast Track
        1. Network Devices
      5. Exam Objectives Frequently Asked Questions
      6. Self Test
      7. Self Test Quick Answer Key
    4. 4. Wireless Technologies
      1. Introduction to the Wireless Network
        1. Convenience
          1. Flexibility
          2. Roaming
          3. Mobility
        2. Productivity
      2. Radio Frequency and Antenna Behaviors and Characteristics
        1. Radio Frequency Behaviors
          1. Gain and Loss
          2. Reflection and Refraction
          3. Absorption and Scattering
        2. Antenna Characteristics
          1. Line of Sight and Fresnel Zone
      3. Wireless Network Concepts
        1. Overview of Wireless Communication in a Wireless Network
          1. Radio Frequency Communications
          2. Spread Spectrum Technology
            1. Frequency Hopping Spread Spectrum
            2. Direct Sequence Spread Spectrum
          3. Wireless Network Architecture
          4. CSMA/CD and CSMA/CA
        2. Wireless Network Protocols and Operation
          1. WAP
          2. WTLS
          3. IEEE 802.11
            1. IEEE 802.11b
            2. IEEE 802.11a
            3. IEEE 802.11g
              1. Ad-Hoc and Infrastructure Network Configuration
          4. IEEE 802.15 (Bluetooth)
          5. Infrared
          6. WEP
            1. Creating Privacy with WEP
          7. Authentication
          8. 802.1x Authentication
            1. User Identification and Strong Authentication
            2. Dynamic Key Derivation
            3. Mutual Authentication
            4. Per-Packet Authentication
      4. Common Exploits of Wireless Networks
        1. Passive Attacks on Wireless Networks
          1. Detecting Wireless Networks
            1. Using NetStumbler
            2. Protecting Against Wireless Network Detection
          2. Sniffing
            1. Protecting Against Sniffing and Eavesdropping
        2. Active Attacks on Wireless Networks
          1. Spoofing (Interception) and Unauthorized Access
            1. Protecting Against Spoofing and Unauthorized Attacks
          2. Denial of Service and Flooding Attacks
            1. Protecting Against DoS and Flooding Attacks
        3. Man-in-the-Middle Attacks on Wireless Networks
          1. Network Hijacking and Modification
            1. Protection against Network Hijacking and Modification
        4. Jamming Attacks
      5. Configuring Windows Client Computers for Wireless Network Security
        1. Windows XP Professional
        2. Windows 2000 Professional
      6. Site Surveys
      7. Summary of Exam Objectives
      8. Exam Objectives Fast Track
        1. Radio Frequency and Antenna Behaviors and Characteristics
        2. Wireless Network Concepts
        3. Common Exploits of Wireless Networks
        4. Configuring Windows Client Computers for Wireless Network Security
        5. Site Surveys
      9. Exam Objectives Frequently Asked Questions
      10. Self Test
      11. Self Test Quick Answer Key
  10. II. Protocols and Standards
    1. 5. OSI Model
      1. Introduction
      2. Understanding the Purpose and Function of Networking Models
        1. Understanding the Department of Defense Networking Model
          1. Layer One: Network Interface
            1. Media Access Control
            2. Network Interface Hardware/Software
          2. Layer Two: Internet (or Internetworking)
          3. Layer Three: Host-to-Host (or Transport)
          4. Layer Four: Application
        2. Understanding the OSI Model
          1. Layer 1: Physical
            1. Digital Versus Analog Signaling
          2. Layer 2: Data Link
            1. The LLC Sublayer
            2. The MAC Sublayer
          3. Layer 3: Network
          4. Layer 4: Transport
          5. Layer 5: Session
          6. Layer 6: Presentation
          7. Layer 7: Application
          8. Encapsulation of Data
        3. The Microsoft Model
          1. Understanding the Function of Boundary Layers
            1. The Network Driver Interface Specification Boundary Layer
            2. The Transport Driver Interface Boundary Layer
            3. The Application Program Interface Boundary Layer
          2. Understanding Component Layers
            1. The NDIS Wrapper
            2. Network Transport Protocols
            3. File System Drivers
            4. Applications and User Mode Services
      3. Understanding the TCP/IP Protocol Suite
        1. Layer 1: Network Interface (DoD) / Layers 1 and 2 Physical and Data Link (OSI)
          1. CSMA/CD
          2. CSMA/CA
          3. Token Passing
          4. Other Access Control Methods
        2. Layer 2: Internet (DoD) / Layer 3 Network (OSI)
          1. IPv4
          2. ICMP
          3. IGMP
          4. ARP
        3. Layer 3: Host-to-Host / Layer 4 Transport (OSI)
          1. TCP
          2. UDP
        4. Layer 4: Application (DoD) / Layers 1, 2, 3 Session, Presentation and Application (OSI)
          1. NetBIOS over TCP
          2. WINS
          3. SMB/CIFS
          4. IPP
          5. Windows Sockets
          6. Telnet
          7. DHCP
          8. SMTP
          9. POP
          10. IMAP
          11. HTTP
          12. NNTP
          13. FTP
          14. DNS
          15. RIP
          16. NTP
          17. SNMP
      4. Summary of Exam Objectives
      5. Exam Objectives Fast Track
        1. Identify a MAC (Media Access Control) Address and its Parts
        2. Identify the Seven layers of the OSI (Open Systems Interconnect) Model and Their Functions
        3. Identify the OSI (Open Systems Interconnect) Layers at Which the Following Network Components Operate such as Hubs, Switches, Bridges, Routers, NICs and APs
      6. Exam Objectives Frequently Asked Questions
      7. Self Test
      8. Self Test Quick Answer Key
    2. 6. Network Protocols
      1. Introduction
      2. Network Protocols
        1. IPX/SPX
          1. IPX Addressing
            1. Internal Network Numbering and Server Addresses
            2. How to Translate an IPX Address
        2. NetBEUI (Network Basic Input / Output System Extended User Interface)
        3. AppleTalk / AppleTalk over IP
          1. AppleTalk Addressing
          2. Zones and AppleTalk Communication
        4. TCP/IP
      3. IPv4
      4. IPv6
        1. Benefits of IPv6
        2. IPv4 versus IPv6
          1. Header Comparison
          2. Feature Comparison
      5. Understanding IP Addressing
        1. Converting from Decimal to Binary
        2. Network ID and Host ID
          1. Rules for Network IDs
          2. Rules for Host IDs
        3. Class A Addresses
        4. Class B
        5. Class C
        6. Class D and Class E
        7. Address Class Summary
      6. Understanding Subnetting
      7. Understanding Subnet Masking
        1. How Bitwise ANDing Works
        2. Default Subnet Mask
        3. Custom Subnet Mask
          1. Determine the Number of Host Bits to Be Used
          2. Determine the New Subnetted Network IDs
          3. Determine the IP Addresses for Each New Subnet
          4. Creating the Subnet Mask
      8. Strategies to Conserve Addresses
        1. Classless InterDomain Routing
        2. Variable-Length Subnet Masks
        3. Private Addresses
          1. Public versus Private Address Spaces
      9. RFC 1918—Private Network Addresses
        1. Considerations
          1. Static and Dynamic Assignments
          2. DHCP Operations
            1. DHCP Relay Agents
      10. Multicast, Broadcast, and Unicast
        1. Understanding the Basics of Multicasting
        2. Unicast Traffic
        3. Broadcast Traffic
        4. Multicast Traffic
        5. Multicast IP Address Designations
      11. Understanding Basic IP Routing
        1. Name and Address Resolution
          1. Hostname Resolution
            1. Hosts File
            2. DNS Name Resolution
          2. NetBIOS Name Resolution
        2. How Packets Travel from Network to Network
          1. IP Routing Tables
            1. IP Routing Table Entries
            2. Route Determination Process
          2. Physical Address Resolution (Using ARP)
            1. ARP Cache
            2. ARP Process
          3. Inverse ARP
          4. Proxy ARP
          5. Static and Dynamic IP Routers
          6. Routing Utilities
        3. Example of a Simple Classful Network
        4. Services and Applications
        5. Protocols and Ports
          1. Commonly Used Port Numbers
          2. TCP and UDP
            1. TCP and UDP Communications
            2. FTP, SFTP, and TFTP
            3. HTTPS
            4. SMTP, HTTP, POP3, and IMAP4
            5. Telnet and SSH
            6. ICMP
            7. ARP/RARP
            8. NTP
            9. NNTP
            10. SCP
            11. LDAP
            12. IGMP
            13. LPR
        6. More Services, Protocols, and Applications
          1. DNS
            1. A Hierarchical Naming System
            2. Domain Levels
            3. Top-Level Domains
            4. Second-Level Domains
            5. Subdomains
            6. The Domain Tree
            7. Fully Qualified Domain Names
            8. NAT
            9. Internet Connection Sharing
            10. WINS
            11. SNMP
            12. Network File System
            13. Server Message Block
            14. Zero Configuration
            15. AFP
            16. Line Printer Daemon
      12. Summary of Exam Objectives
      13. Exam Objectives Fast Track
        1. Differentiate Between the Network Protocols in Terms of Routing, Addressing Schemes, Interoperability and Naming Conventions
        2. Identify the Components and Structure of IP Addresses and the Required Setting for Connections Across the Internet
        3. Identify Classful IP Ranges and Their Subnet Masks
        4. Identify the Purpose of Subnetting
        5. Identify the Differences Between Private and Public Network Addressing Schemes
        6. Identify and Differentiate Between the IP Addressing Methods: Static, Dynamic, and APIPA
        7. Define the Purpose, Function and Use of the Protocols Used in the TCP / IP Suite
        8. Define the Function of TCP / UDP Ports
        9. Identify the Well-known Ports Associated with the Commonly Used Services and Protocols
        10. Identify the Purpose of Network Services and Protocols
      14. Exam Objectives Frequently Asked Questions
      15. Self Test
      16. Self Test Quick Answer Key
    3. 7. WAN and Security Standards and Services
      1. Introduction
        1. What is a WAN?
      2. Switching Methods
        1. Circuit Switching
        2. Packet Switching
      3. WAN Standards and Protocols
        1. T/E Carrier
        2. ISDN
        3. Fiber Distributed Data Interface (FDDI)
          1. Basic Rate Interface
          2. Primary Rate Interface
          3. Frame Relay
          4. X.25
          5. SONET
      4. Internet Access Methods
        1. DSL
          1. ADSL
          2. SDSL
        2. Broadband Cable
        3. POTS / PSTN
        4. Wireless
        5. Satellite
      5. Remote Access Protocols and Services
        1. RAS
          1. SLIP
          2. PPP
          3. PPPoE
        2. What is a VPN?
          1. Site-to-Site VPN
          2. Remote Access VPN
          3. RDP
      6. Security Protocols
        1. IPSec
          1. IPSec Authentication
          2. ISAKMP
        2. PPTP/L2TP
          1. PPTP
          2. L2TP
        3. SSH
          1. How SSH Works
        4. SSL and HTTPS
          1. S-HTTP
        5. WEP
        6. WPA (Wi-Fi Protected Access)
        7. 802.1x
      7. Identifying Authentication Protocols
        1. CHAP
        2. MS-CHAP
        3. PAP
        4. Kerberos
        5. RADIUS
          1. Authentication Process
          2. Vulnerabilities
        6. TACACS/+
          1. TACACS
          2. TACACS+
          3. XTACACS
        7. EAP
      8. Summary of Exam Objectives
      9. Exam Objectives Fast Track
        1. Identify the Basic Characteristics of the following WAN (Wide Area Networks) Technologies
        2. Identify the Basic Characteristics of the Following Internet Access Technologies
        3. Define the Function of the Following Remote Access Protocols and Services
        4. Identify the Following Security Protocols and Describe their Purpose and Function
        5. Identify Authentication Protocols
      10. Self Test
      11. Self Test Quick Answer Key
    4. 8. Network Operating Systems
      1. Introduction
      2. Identifying the Basic Capabilities of Network Operating Systems
        1. Microsoft Windows
          1. Installation and Requirements
            1. Common Installation Issues
            2. Common Upgrade Issues
          2. Design and Planning
            1. Planning Strategies
            2. Using Planning Tools
            3. Planning the Test Network
            4. Documenting the Planning and Network Design Process
          3. Users and Groups
            1. Creating User Accounts
            2. Managing User Accounts
            3. Working with Active Directory Group Accounts
          4. System Management
          5. Client Support
          6. Interoperability
          7. Authentication
          8. File and Print Services
            1. Enhanced File System Features
            2. Improved Printing Features
            3. Granting Access to Shares Resources
            4. Security Groups
            5. Distribution Groups
          9. Application Support
          10. Security
        2. NetWare
          1. Installation and Requirements
          2. Users and Groups
          3. System Management
          4. Client Support
          5. Authentication
          6. File and Print Services
          7. Application Support
          8. Interoperability
          9. Security
        3. Linux/Unix
          1. Installation and Requirements
          2. Users and Groups
          3. System Management
          4. Client Support
          5. Authentication
            1. Understanding LDAP Authentication
            2. Understanding /etc/passwd/shadow Authentication
            3. Understanding PAM
          6. File and Print Services
          7. Security
        4. Mac OS X
          1. Users and Groups
          2. System Management
          3. Interoperability and Authentication
          4. File and Print Services
          5. Application Support
          6. Security
        5. Appleshare IP
      3. Identifying the Basic Capabilities Needed for Client Workstations to Connect to and Use Network Resources
        1. Networking Hardware
        2. Networking Software
      4. Identifying the Appropriate Tool for a Wiring Task
        1. Wire Crimper
        2. Media Tester/Certifier
        3. Punch Down (Impact) Tool
        4. Tone Generator
      5. Configure a Remote Connectivity Scenario
        1. Planning for Dial-In Access
        2. Planning for VPN Access
        3. Choosing Remote Access Authentication Methods
          1. Providing Remote Access for Microsoft Windows
          2. Remote Access in Novell NetWare
          3. Providing Remote Access for Linux Servers
          4. Remote Access in Mac OS X Server
        4. AppleShare IP
      6. Summary of Exam Objectives
      7. Exam Objectives Fast Track
        1. Explain the Basic Capabilities of Network Operating Systems
        2. Identify the Basic Capabilities Needed for Client Workstations to Connect To and Use Network Resources
        3. Identify the Appropriate Tool for a Given Wiring Task
        4. Given a Remote Connectivity Scenario Comprised of a Protocol, an Authentication Scheme, and Physical Connectivity, Configures the Connection
      8. Exam Objectives Frequently Asked Questions
      9. Self Test
      10. Self Test Quick Answer Key
  11. III. Network Implementation
    1. 9. Network Infrastructure and Security
      1. Introduction to Network Infrastructure
      2. Understanding Firewalls
        1. Introducing Firewall Concepts
        2. Identifying Risks to Network Transmissions
        3. Firewall Definitions and History
          1. Packet Filters
          2. Stateful Inspection Packet Filters
          3. Application Layer Filtering
          4. Firewall Interfaces: Inside, Outside, and DMZ
        4. Using Network Address Translation
          1. Static Address Translation
          2. Dynamic Address Translation
        5. Recognizing Popular Firewalls
          1. Hardware-Based Firewalls
            1. The Cisco PIX Firewall
            2. Nokia Firewall
            3. Check Point FW-1
          2. Software-Based Firewalls
            1. Microsoft ISA Server
            2. IP Chains and IP Tables
            3. IP Security Protocol
            4. Creating an IPSec Ruleset
          3. Personal Firewall Software
        6. Configuring and Implementing Firewalls
          1. Why the Design Process Is So Important
          2. Designing Your Firewall to Protect Your TCP/IP Clients
          3. Understanding TCP/IP Vulnerabilities
          4. Denial-of-Service (DoS) Attacks
            1. Distributed Denial-of-Service Attack
            2. Ping of Death
            3. Teardrop
            4. Ping or ICMP Flood
            5. Mail Bomb Attack
          5. Scanning and Spoofing
            1. Port Scanning
        7. Using Firewalls to Protect Network Resources
          1. Configuring Your Firewall to Filter Network Packets
      3. Using a Proxy Server
      4. Implementing Network Filtering
        1. Using a Virtual LAN
        2. Deploying an Extranet
        3. Using an Intranet
      5. Protecting Your Network From Viruses
        1. Understanding Malware
          1. Viruses
          2. Worms
            1. Logic Bombs
          3. Macro Viruses
          4. Trojan Horses
          5. Other Types of Malicious Programs
        2. Deploying Antivirus Software
          1. Computer Associates Software
          2. Network Associates Software
        3. Deploying Antivirus for an Enterprise Network
      6. Summary of Exam Objectives
      7. Exam Objectives Fast Track
        1. Implementing Firewalls
        2. Using Proxy Servers
        3. Using Network Filtering
        4. Protecting Your Network From Viruses
      8. Exam Objectives Frequently Asked Questions
      9. Self Test
      10. Self Test Quick Answer Key
    2. 10. Fault Management and Disaster Recovery
      1. Introduction
      2. Fault Tolerance
        1. Fault Tolerant Power
        2. Fault Tolerant Link Redundancy
        3. Fault Tolerant Storage
        4. Fault Tolerant Services
      3. RAID
        1. Mirroring and Duplexing
        2. Striping With and Without Parity
      4. Clustering and Load Balancing
      5. Disaster Recovery Plan
        1. Backup and Restore
          1. Rotation Schemes
          2. Restoring Backups
        2. Offsite Storage
        3. Hot and Cold Spares
        4. Hot, Warm, and Cold Sites
      6. Business Continuity Plan
      7. Configuration Management
        1. Documenting Configurations
        2. Change Control Documentation
        3. Logs
        4. Password Lists
        5. Notification Documentation
      8. Summary of Exam Objectives
      9. Exam Objectives Fast Track
        1. Fault Tolerance
        2. Disaster Recovery Plan
      10. Exam Objectives Frequently Asked Questions
      11. Self Test
      12. Self Test Quick Answer Key
  12. IV. Network Support
    1. 11. Network Troubleshooting Tools
      1. Introduction
      2. Methodology
        1. Gathering Information About a Problem
        2. Analyzing and Responding to a Problem
        3. Network Discovery
      3. OSI Model
        1. The Physical Layer
        2. The Data Link Layer
        3. The Network Layer
        4. The Transport Layer
      4. Windows Tools
        1. ping
        2. tracert
        3. pathping
        4. arp
        5. netstat
        6. nbtstat
        7. ipconfig
        8. winipcfg
        9. nslookup
        10. route
        11. SNMP
      5. Linux Tools
        1. ifconfig
        2. dig
        3. traceroute
      6. NetWare Tools
      7. Other Network Troubleshooting Tools
        1. Crossover Cables
        2. Oscilloscope
        3. Tone Generator
        4. Cable Testers
      8. Importance of Network Documentation
      9. Summary of Exam Objectives
      10. Exam Objectives Fast Track
        1. Troubleshooting Methodology
        2. The OSI Model
        3. Windows Tools
        4. Linux Tools
      11. Exam Objectives Frequently Asked Questions
      12. Self Test
      13. Self Test Quick Answer Key
    2. 12. Network Troubleshooting Methodology
      1. Introduction
      2. How to Use the OSI Model in Troubleshooting
        1. The Purpose of Networking Models
        2. Reviewing the OSI Model
        3. Establishing a Troubleshooting Strategy
      3. Troubleshooting the Physical Layer
        1. Layer 1 Troubleshooting
          1. The Role of the NIC
          2. Driver Issues
        2. Problems with Cables and Other Network Media
          1. Cable Length Issues
        3. Troubleshooting Physical Layer Devices
          1. Locate the Source of the Problem
      4. Troubleshooting the Data Link Layer
        1. Understanding Data Link Access Control Methods
        2. Understanding MAC Addressing
        3. Recognizing Data Link Layer Devices
        4. Layer 2 Troubleshooting
      5. Identifying the Cause of an Infrastructure Problem
      6. Troubleshooting the Network Layer
        1. Layer 3 Troubleshooting
      7. Troubleshooting the Transport Layer
        1. Understanding TCP
        2. Understanding UDP
        3. Layer 4 Troubleshooting
      8. Troubleshooting the Session Layer
        1. Layer 5 Troubleshooting
      9. Troubleshooting the Presentation Layer
        1. Identifying the Cause of Client and Various Server Environment Problems
        2. Layer 6 Troubleshooting
      10. Troubleshooting the Application Layer
        1. Application Layer Protocols
          1. Determining Impact of Modifying, Adding or Removing Network Services for Network Resources and Users
        2. Layer 7 Troubleshooting
          1. Identifying a Client’s Remote Network Access Problem
      11. Summary of Exam Objectives
      12. Exam Objectives Fast Track
        1. Application Layer Troubleshooting
        2. Presentation Layer Troubleshooting
        3. Session Layer Troubleshooting
        4. Transport Layer Troubleshooting
        5. Network Layer Troubleshooting
        6. Data Link Layer
        7. Physical Layer
      13. Exam Objectives Frequently Asked Questions
      14. Self Test
      15. Self Test Quick Answer Key
    3. Self Test Appendix
      1. Chapter 1 Network Fundamentals
      2. Chapter 2 Network Media
      3. Chapter 3 Network Devices
      4. Chapter 4 Wireless Technologies
      5. Chapter 5 OSI Model
      6. Chapter 6 Network Protocols
      7. Chapter 7
      8. Chapter 8 Network Operating Systems
      9. Chapter 9
      10. Chapter 10 Fault Management and Disaster Recovery
      11. Chapter 11 Network Troubleshooting Tools
      12. Chapter 12 Network Troubleshooting Methodology