CompTIA Network+ Certification Study Guide (Exam N10-006) by Clarke, Glen E. -- Read -- Imperial Library of Trantor

Index

Cover Page Title Page Copyright Page Dedication Contents Preface Acknowledgments Introduction 1 Basic Network Concepts

Identifying Characteristics of a Network

Servers, Workstations, and Hosts WANs, LANs, and MANs Types of Networks Internet, Intranet, and Extranet

Identifying Network Topologies

Bus Topologies Star Topologies Mesh Topologies Ring Topologies Hybrid Topologies Wireless Topologies Point-to-Point and Point-to-Multipoint Segments and Backbones

Network Media and Connectors

Coaxial Cable Twisted-Pair Cable Exercise 1-1: Crimping a Category 5 Cable Fiber-Optic Cable Connector Types Networking over Power Lines Media Converters

Access Methods

CSMA/CD CSMA/CA Token Passing Modulation Techniques Multiplexing and De-multiplexing Bit Rates vs. Baud Rate

Network Architectures

Baseband and Broadband Ethernet Token Ring FDDI Exercise 1-2: Identifying the Different Network Architectures

Network Operating Systems

Windows Servers Exercise 1-3: Installing DNS on a Windows Server UNIX/Linux Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

2 Network Protocols and Standards

Network Protocols

NetBEUI What Is NetBIOS? IPX/SPX AppleTalk TCP/IP Routable vs. Nonroutable Protocols

The OSI Model

Layer 7: The Application Layer Layer 6: The Presentation Layer Layer 5: The Session Layer Layer 4: The Transport Layer Layer 3: The Network Layer Layer 2: The Data Link Layer Layer 1: The Physical Layer Data Encapsulation Exercise 2-1: Mixing and Matching OSI Model Definitions Protocols and the OSI Layers Exercise 2-2: Viewing Protocol Information with Network Monitor Exercise 2-3: Analyzing Network Traffic

802 Project Standards

IEEE 802 Categories Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

3 Networking Components

Network Interface Cards

Transceivers Exercise 3-1: Configuring a Network Card MAC Address Exercise 3-2: Determining Your Local Machine’s MAC Address Troubleshooting Network Cards

Hubs, MAUs, and Repeaters

Hubs Multistation Access Units Repeaters

Bridges and Switches

Bridges Switches

Routers and Brouters

Routers Brouters Collision Domains and Broadcast Domains

Gateways and Security Devices

Gateways Firewalls Intrusion Detection Systems Exercise 3-3: Identifying Network Components

Other Networking Devices

Wireless Access Points Analog Modems CSU/DSU ISDN Network Appliances Virtualization Cloud Computing Storage Area Networks SCADA/ICS and Medianets Power Management Wiring Distribution and Rack Systems Device Placement and Labeling Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

4 TCP/IP Addressing

TCP/IP Fundamentals

TCP/IP Settings Exercise 4-1: Identifying Remote Systems

TCP/IP Addressing

Understanding Binary Exercise 4-2: Converting Decimal to Binary Exercise 4-3: Converting Binary to Decimal Address Classes Exercise 4-4: Identifying Address Classes Loopback Address Private Addresses Exercise 4-5: Understanding Valid Addresses Addressing Schemes TCP/IP Ports Exercise 4-6: Viewing TCP/IP Port Values

TCP/IP Configuration Concepts

Manual Configuration Dynamic Host Configuration Protocol (DHCP) Exercise 4-7: Configuring TCP/IP to Use DHCP APIPA Boot Protocol Domain Name System Windows Internet Naming Service Exercise 4-8: Configuring a Client for DNS Configuring a Linux Machine for TCP/IP Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

5 TCP/IP Protocols

TCP/IP Protocol Suite

The TCP/IP Model Exercise 5-1: Identifying TCP/IP Protocols

IPv6 Fundamentals

IPv6 Addressing and Hexadecimal Addressing IPv6 Protocols Tunneling Protocols Exercise 5-2: Exploring IPv6

Network Services

Web Services Network Controllers DHCP DNS RDP WINS NAT/PAT/SNAT ICS SMB/CIFS NFS AFP Samba ZeroConfig VoIP Unified Voice Services Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

6 TCP/IP Utilities and Troubleshooting

Communication Requires ARP

How ARP Works ARP Cache Exercise 6-1: Using ARP to See Your Local ARP Cache RARP

Common TCP/IP Commands

IPCONFIG and ifconfig Exercise 6-2: Using IPCONFIG Ping and Hping2 Exercise 6-3: Using Ping Tracert/traceroute Netstat Exercise 6-4: Using Netstat to Determine Open Connections to a System Telnet Exercise 6-5: Using Telnet to Remotely Administer a Cisco Router FTP Exercise 6-6: Configuring and Using FTP

Name Resolution Commands

NBTSTAT Exercise 6-7: Using NBTSTAT to View NetBIOS Name Tables NSLOOKUP and DIG Exercise 6-8: Using NSLOOKUP

TCP/IP Utilities

Hostname and Host MTR Route Arping Pathping MAC Address Lookup Table

Troubleshooting with TCP/IP Utilities

Connectivity Problems Name-Resolution Problems Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

7 Configuring Routers and Switches

Basic Router Configuration

Configuration Modes Configuring the Hostname Configuring Interfaces Exercise 7-1: Performing Basic Configuration of Cisco Routers

Basic Switch Configuration

Configuring Interfaces Configuring VLANs Port Mirroring Exercise 7-2: Configuring VLANs on Cisco Switches Configuring Port Security Switch Management

Troubleshooting Connectivity

Layer-1 and Layer-2 Troubleshooting Layer-3 Troubleshooting Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

8 Subnetting and Routing

Understanding Subnetting

Exercise 8-1: Subnetting IP Addresses

Classful vs. Classless Addressing

CIDR Exercise 8-2: Subnetting Networks Supernetting

Understanding Routing and Static Routes

Routing Concepts Cisco Routers Exercise 8-3: Configuring Cisco Routers Windows Routers

Dynamic Routing Protocols

Routing Metrics Distance Vector Link State Advanced Concepts Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

9 Configuring Network Services

Understanding DNS

DNS Overview Configuring DNS Records Dynamic DNS Exercise 9-1: Installing and Configuring DNS

Deploying DHCP

DHCP Overview Configuring DHCP Configuring Reservations Exercise 9-2: Installing and Configuring DHCP DHCP Relay and IP Helper

Implementing NAT

NAT Overview Configuring NAT Exercise 9-3: Configuring NAT on Windows Server

Port Forwarding, Proxy Servers, and Unified Communications

Port Forwarding Exercise 9-4: Configuring Port Forwarding Proxy Servers Unified Communications Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

10 Wireless Networking

Wireless Basics

Wireless Concepts Wireless Network Types Wireless Standards Channels Authentication and Encryption

Securing Wireless

Security Best Practices Threats Against Wireless

Implementing a Wireless Network

Configuring the Wireless Router/Access Point Wireless Security Configuring the Client Exercise 10-1: Configuring a Wireless Network Implementing MAC Filtering Changing the SSID and Implementing WEP Configuring a Windows 8 Client Configuring Roaming Wireless Understanding Mobile Devices Troubleshooting Wireless

PAN Networking

Infrared (IR) Bluetooth NFC Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

11 Remote Access and VPN Connectivity

Remote Connectivity Concepts

Public Switched Telephone Network Integrated Services Digital Network

Remote Access Service (RAS)

Serial Line Internet Protocol Point-to-Point Protocol Exercise 11-1: Enabling Modem Logging in Windows

Dial-Up Networking

Modem Configuration Parameters Unimodem Telephony API Requirements for a Remote Connection Exercise 11-2: Creating a PPP Dial-Up Connection

Virtual Private Networks (VPNs)

VPN Overview VPN Protocols Exercise 11-3: Setting Up a VPN Server Exercise 11-4: Setting Up a VPN Client Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

12 Wide Area Network Technologies

Packet-Switching vs. Circuit-Switching Networks

Packet Switching Circuit Switching X.25 and Frame Relay

Fiber-Optic WAN Technologies

Synchronous Optical Network/Synchronous Digital Hierarchy Optical Carrier Level-X Fiber Distributed Data Interface Asynchronous Transfer Mode

Internet Access Technologies

Leased Lines with Tx-/Ex-Carriers DSL/ADSL Broadband Cable High Speed via Satellite and Cellular Networks Other Methods of Internet Access Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

13 Implementing a Network

Installing a Network

Networking Options Network Requirements Exercise 13-1: Confirming Networking Components in Windows Installing a Network Server

Creating User Accounts

Built-in Accounts Creating User Accounts Exercise 13-2: Creating Users in Active Directory Password Policies Exercise 13-3: Configuring a Password Policy

Managing Groups

Built-in Groups Creating Groups Exercise 13-4: Creating Groups in Active Directory

Securing Files and Folders

Securing Files in Windows Exercise 13-5: Configuring Permissions in Windows Server 2012 Connecting to a Shared Folder Securing Files in Linux

Installing Printers

Installing a Print Server Changing Printer Permissions Exercise 13-6: Installing a Printer on Windows Server 2012 Configuring a Print Client

Working with Network Hardware

Environmental Factors that Affect Computer Networks Common Peripheral Ports and Network Components Compatibility and Cabling Issues Implementing a SOHO Network Implement a Network Based on Requirements Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

14 Maintaining and Supporting a Network

Network Upgrades and Downgrades

Safety Practices Software Upgrades Hardware Upgrades

Installing Patches and Updates

Exercise 14-1: Configuring Windows Update Windows Server Update Services (WSUS)

Antivirus and Antispyware Software

Antivirus Software Antispyware/Adware

Backing Up Network Data

Tape Drives Archives Full, Incremental, and Differential Backups Scheduling Backups Exercise 14-2: Backing Up and Restoring Data on a Windows Server

Providing Fault Tolerance

RAID Level 0 RAID Level 1 RAID 5 Exercise 14-3: Understanding and Configuring Fault Tolerance

Network Documentation and Configuration Management

Wiring Schematics Physical Network Diagrams Logical Network Diagrams Asset Management IP Address Utilization Vendor Documentation Baselines Internal Policies, Procedures, and Standards Change Management Configuration Management Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

15 Network Security Principles

Understanding Attack Types

Social Engineering Phishing Attack Network-Based Attacks Common Vulnerabilities Malicious Software Mitigating Attacks

Understanding System Security

Authentication Authorization Windows Security Subsystem Configuring Permissions Securing the Registry Exercise 15-1: Setting Permissions on Registry Keys Configuring User Rights Exercise 15-2: Modifying User Rights on a Windows System Configuring Auditing Exercise 15-3: Implementing Auditing in Windows

Implementing Network Security

Network Access Security

Securing Communication

Defining Data Encryption Encryption Methods Encryption Standards Methods of Securing Traffic

Fault Tolerance and Disaster Recovery

Fault Tolerance Disaster Recovery and Business Continuity

Guidelines to Protect the Network

Physical Security Firewalls Intrusion Detection Systems Patch Management Hardening Devices and Systems Data Encryption Policies and Procedures Vulnerability Testing and Penetration Testing End-User Awareness and Training Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

16 Network Security Practices

Implement Network Hardening Techniques

Security Policy and Access Control Models Antimalware Software Switch Port Security Disable Unneeded Network Services Network Segmentation and Access Lists Use Secure Protocols

Physical Security Controls

Securing the Premises Network Closet/Server Room Access Control Methods

Implementing Firewalls

Firewall Architecture Firewall Types Other Firewall Features Configuring Access Control Lists Exercise 16-1: Enabling the Windows Firewall

Basic Forensics Concepts

First Responder Evidence Collection Handling Evidence Forensics Report Legal Hold Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

17 Monitoring the Network

Monitoring and Logging

Monitoring Logging

Monitoring Tools

Packet/Network Analyzer Port Scanner Exercise 17-1: Using a Port Scanner System Monitor Exercise 17-2: Using System Monitor Event Viewer Exercise 17-3: Checking Event Logs Other Monitoring Tools Environmental and Power Monitoring

Monitoring Techniques to Track Problems

Monitoring Best Practices Monitoring Utilization Interface Monitoring Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

18 Troubleshooting the Network

Managing Network Problems

Does the Problem Exist Across the Network? Workstation, Workgroup, LAN, or WAN Problem? Is the Problem Consistent and Replicable? Standard Troubleshooting Methods

Network Troubleshooting Methodology

Step 1: Identify the Problem Step 2: Establish a Theory of Probable Cause Step 3: Test the Theory to Determine Cause Step 4: Establish a Plan of Action to Resolve the Problem and Identify Potential Effects Step 5: Implement the Solution or Escalate as Necessary Step 6: Verify Full System Functionality and, If Applicable, Implement Preventative Measures Step 7: Document Findings, Actions, and Outcomes Other Methodology Steps Sample Troubleshooting Situations

System or Operator Problems Checking Physical and Logical Indicators

Link Lights Collision Lights Power Lights Error Displays Error Logs and Displays Performance Issues and Optimization Physical and Logical Issues

Other Symptoms and Causes of Network Problems

Recognizing Abnormal Physical Conditions Isolating and Correcting Problems in the Physical Media Checking the Status of Servers Checking for Configuration Problems Checking for Viruses Checking the Validity of the Account Name and Password Rechecking Operator Logon Procedures Selecting and Running Appropriate Diagnostics

Network Troubleshooting Tools

Cable Crimper, Wire Stripper, and Punch-Down Tool Cable Tester, Certifier, and Butt Set Crossover Cables Loopback Plug, Line Testers, and Light Meter Tone Generator/Toner Probe TDR and OTDR Oscilloscopes Multimeter Software Troubleshooting Tools Certification Summary ✓ Two-Minute Drill Q&A Self Test Self Test Answers

A About the Download B How to Score Your Pre-assessment C Performance-Based Questions and Answers Glossary Index

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