Course Overview
CompTIA Network+ covers the configuration, management, and troubleshooting of
common wired and wireless network devices. Also included are emerging technologies
such as unified communications, mobile, cloud, and virtualization technologies.
Course Introduction 2m
Course Introduction
Lesson 01 – Network Theory 1h 40m
Network Theory
OSI Model Location
The IEEE 802.11 Standard
The OSI and TCP/IP Models
OSI Layer 7
OSI Layer 6
OSI Layer 5
OSI Layer 4
OSI Layer 3
OSI Layer 2
OSI Layer 1
LAN Compared with the OSI Model
TCP/IP Architecture
Demo – OSI Review
LANs
WANs
Network Coverage Areas
The Internet
Intranets
Extranets
Enterprise Networks
Specialized Network Types
Network Configurations
Centralized Networks
Client/Server Networks
Peer-to-Peer Networks
Mixed Mode Networks
Network Topologies
Frequencies and Overlap of Wireless Channels
Radio Networking
Broadcast Radio
Spread Spectrum
Infrared Transmission
Bluetooth
Microwave Transmission
Data Transmission
Analog Signals
Digital Signals
Digital Data Transmission
Unicast Transmission
Broadcast Transmission
Multicast Transmission
Anycast Transmission
Serial Data Transmission
Parallel Data Transmission
Baseband Transmission
Broadband Transmission
Transmission Speeds
Types of Media Access
Polling
CSMA/CA
CSMA/CD
Multiplexing
Lesson 02 – Bounded Network Media 1h 24m
Bounded Network Media
Twisted-pair Cable
Common UTP Categories
Additional TP Categories
Stranded vs. Solid
Straight-through, Cross-over, Rollover
Pin Numbering of RJ-45 Connector
T1 Crossover Cable
Coaxial Cable
RG Standards
Single-mode Fiber to UTP
Broadband Over Power Line
Access BPL
BPL Modem
Twisted-pair Connectors
Pin Numbering of RJ-45 Connector (Cont.)
Serial Connectors
Serial Cable
Serial Console Connections
Serial Cable Types
Serial Data Rates
Typical UTP Installation
Fiber Optic Cable
Fiber Optic Connectors
Fiber Optic Connector Types
Thinnet Connectors
Terminating Coax with BNC
RG-6 and RG-59 Connectors
Plenums
Media Converters
Telecommunications Room
Termination Choices
Punchdown Block
Wire Placement
Cross-connects
MDF to IDF Connections
Workstation Drops
Classifying Network Components
Lesson 03 – Unbounded Network Media 51m
Unbounded Network Media
The 802.11 Standard
The 802.11 Family
802.11 Networking
The 802.1x Standard
The 802.11 Standard (Cont.)
Channels
Channel Bonding
Wireless Access Points
Wireless Controllers
Wireless Bridges
Wireless Antennas
Wireless Antenna Types
Wireless Antenna Performance Factors
SSID Broadcasts
MIMO
Configuration Options
Configuring Wireless Clients
Demo – Setting Up Wi-Fi
Access Point
Device Compatibility
Troubleshooting Connections
Common Problems
Major Wireless Protocols
Lesson 04 – Network Implementations 4h 9m
Network Implementations
Repeaters
Repeater Placement
Wireless Repeater
Repeater Operation
Limitations of Repeaters
Local Area Networks
Network Topologies
Logical Network Topologies
Peer-to-peer Model
Decentralized
Peer-to-peer Authentication
Client/Server Model
A Client/Server LAN
Client/Server Authentication
Star Topology
Bus Topology
Ring Topology
Mesh Topology
Hybrid Topology
Point-to-point vs. Point-to-multipoint
MPLS
Demo – Topology
NICs
Transceivers
IEEE 802.x Standards
Ethernet (IEEE 802.3)
Ethernet Frames
MAC Addresses
The 10Base Standards
Fast Ethernet
Gigabit Ethernet
10 Gigabit Ethernet
PoE
Ethernet Hub
Ethernet
Ethernet Media
10-Gigabit Ethernet Standards
Gigabit Ethernet Standards
Fast Ethernet Standards
10BASE-T
Ethernet Bonding
Data Transmission
Data Collisions
Channel Access Methods
Demo – LAN Cable Types
Network Access Points
LAN Installation Components
MAC Address
Switches
Routers
Types of Routers
Gateways
Firewalls
Analog Modems
Network Controllers
Legacy Network Connectivity Devices
Collision and Broadcast Domains
Switches and Network Performance
Switch Types and Operating Modes
STP (IEEE 802.1d)
Internetworking Devices
Bridges
Bridge Operation
Bridge Types
Bridge Routing Management
Bridge Filtering and Intelligence
Local and Remote Bridges
Layer 2 Switch
Configurations for Switched Networks
Switched Network with Bottlenecks
Switched Network without Bottlenecks
Benefits of Switches
Higher-level Switches
Managed Layer 3 Switch
Installing Routers and Switches
Demo – Routing NAT
Label Edge Routers
Networking Appliances
Demo – The Purpose of Network Devices
Demo – Interface Monitoring
Demo – Interface Configuration
VLANs
VLAN Assignment
Port Mirroring
Trunking
IEEE 802.1q
VLAN Pooling
Virtual LAN
VLAN Filtering
VLAN Trunking
Trunking Example
Demo – Intro to Routing and Switching VLANs
Spanning Tree
Demo – Spanning Tree
Demo – Packet Tracing
Internet Service Providers (ISPs)
Small ISPs
Regional ISP
Typical UTP Installation
Telecommunications Room
Standards
Lesson 05 – TCP/IP Addressing and Data Delivery 2h
TCP/IP Addressing and Data Delivery
Network Communication Protocols
TCP
TCP Three-way Handshake
Internet Protocol (IP)
UDP
Protocols
Demo – Examining Ports and Protocols
The TCP/IP Model
Encapsulation on TCP/IP Networks
Connection-Oriented and Connectionless Protocols
The Three-Way Handshake
ICMP
IGMP
ARP
Protocol Analyzers
IPv4
Subnet Masks
Network IDs
IPv4 Subnet Masks
IPv4 Custom Subnets
Routing Example
Demo – Examining IP Settings
Classful IPv4 Addresses
Special Addresses
APIPA
Default Gateway
CIDR
CIDR Address
Demo – Convert Binary
IPv6
IPv6 Address Types
IPv6 Address Scopes
IPv6 Subnets
IPv6 Custom Subnets
IPCONFIG and IFCONFIG
Connections
Flow Control
Buffering
Data Windows
Error Detection
Parity Checking
Cyclic Redundancy Checking
Lesson 06 – Routing 1h 17m
Routing
Routes
Comparing Routing and Switching
The IP Data Packet Delivery Process
The Local and Remote Delivery Process
Static Routing
Routing Tables
Static Routing Tables
Routing Table Entries
Routing Entry Components
The Route Command
The Routing Process
Autonomous Systems
Router Roles in Autonomous Systems
Routing Methods in Autonomous Systems
Dynamic Routing
Comparing Static and Dynamic Routing
Distance-Vector Routing
Link-State Routing
Comparing Distance-Vector and Link-State Routing
Routers
Router Operation
About Routers
Router Features
Types of Routers
Routing Table Contents
Routing Metrics
Routing Examples
Brouters
Bridges vs. Routers
Virtual Routers
Hybrid Routing
Path-Vector Routing
Route Convergence
Routing Loops
Count-to-Infinity Loops
Split Horizon and Poison Reverse
Router Discovery Protocols
Link State Routing Protocols
Lesson 07 – TCP/IP Services 1h 20m
TCP/IP Services
TCP
Data Transmission on IP Networks
Static and Dynamic IP Addressing
Static IP Address Assignment
APIPA
IP Configuration Utilities
DHCP
Port Addresses
Service Port Numbers
Demo – Port Numbers
Demo – netstat
DHCP and DHCPv6
IPv4 Lease Process
IPv6 Lease Process
IPv6 Router Flags
Demo – DHCP
FQDN
Name Resolution
DNS
DNS Components
Types of DNS Servers
Types of DNS Records
The DNS Hierarchy
The DNS Name Resolution Process
Legacy Name Resolution Methods
DNS (Cont.)
Top-level Domains
DNS Namespace
DNS Records
Demo – Examining DNS
Transport-layer Protocols
M and O Flags
UDP
IP
Static IP Addressing
Lesson 08 – WAN Infrastructure 1h 4m
WAN Infrastructure
Key Points
Wide Area Networks
Packet vs. Circuit Switching
Demo – Packet Switching
WAN Connections
QoS
Mobile Devices
Cable Internet Access
MPLS
DSL
Metro-Ethernet
POTS/PSTN
ISDN
DSL (Cont.)
Cable
Satellite
Wireless
WiMAX
Cellular
T and E Lines
X.25 and Frame Relay
ATM
SONET and SDH
DWDM
PON
Voice-over-Data Systems
VoIP
VoIP Protocols
VoIP Software
Video Conferencing
Lesson 09 – Cloud and Virtualization Technologies 57m
Cloud and Virtualization Technologies
Types of Server Virtualization
Virtual NICs
Virtual Switches
Virtual Firewalls
Virtual PBX
SANs
Virtual Computers
Virtualization Concerns and Risks
Demo – Viewing VM Components
Fibre Channel
iSCSI
NAS
Jumbo Frames
Cloud Concepts
Cloud Computing Features
Cloud Computing Implementations
IaaS
SaaS
PaaS
IDaaS
NaaS
Cloud Computing
Cloud Deployment
Cloud Categories
Risks and Concerns
Lesson 10 – Network Security Basics 1h 43m
Network Security Basics
Wireless Security
Transmission Encryption
Demo – Wireless Security
Business Continuity
Disposal and Destruction
AAA
Authentication Factors
One-factor Authentication
Two-factor Authentication
Three-factor Authentication
Single Sign-on
Kerberos
Kerberos System Components
Kerberos Data Types
Kerberos Authentication Process
CHAP
EAP
PPPoE
Mutual Authentication
Cryptography
ROT13 Cipher
Wireless Security Threats
Vulnerabilities of Access Points
Wi-Fi Scanners
War Chalking Symbols
Denial-of-Service Attacks
Distributed DoS Attacks
DDoS Countermeasures
Man-in-the-Middle Attacks
Buffer Overflow
FTP Bounce Attacks
Smurf Attacks
Malware
Social Engineering
Attack Types
Social Engineering Countermeasures
TACACS+
802.1x
Tokens
Biometrics
Mutual Authentication (Cont.)
SSO
EAP (Cont.)
Kerberos (Cont.)
Wireless Authentication Methods
Password Management
Keys
Symmetric Encryption in Action
Public Key Cryptography
Asymmetric Encryption in Action
Demo – Encryption
Public Key Cryptography (Cont.)
Public Key Infrastructure
Setup and Initialization Phase
Encryption
Encryption and Security Goals
Hashing Encryption
Key-Based Encryption
Digital Certificates
Certificates and Encryption
Encryption Devices
Benefits of Encryption Devices
SSL and Encryption
TLS
Wireless Encryption Protocols
Lesson 11 – Preventing Security Breaches 2h 3m
Preventing Security Breaches
CIA Triad
Security Factors
Non-repudiation
Least Privilege
Risks
Data Breaches
Unauthorized Access
Hackers and Attackers
Security Controls
Security Policies
Common Security Policy Types
Adherence to Standards and Policies
Windows Security Policies
Group Policy
Permissions
Segmentation
Wireless Security
Disaster Recovery
Single Point of Failure
Vulnerabilities
Physical Security Threats and Vulnerabilities
Environmental Threats and Vulnerabilities
Unnecessary Running Services
Open Ports
Unpatched and Legacy Systems
Unencrypted Channels
Cleartext Credentials
Unsecure Protocols
Radio Frequency Emanation
Network Access Control
Access Control Lists
NAT
Threats
Attacks
Data Theft
Social Engineering Attacks
Types of Social Engineering Attacks
Insider Threats
Malware Attacks
Types of Malware Attacks
Types of Viruses
Effect of Malware on the Network
Compromised Systems
Buffer Overflows
Password Attacks
Types of Password Attacks
Packet and Protocol Abuse
IP Spoofing Attacks
DoS Attacks
Types of DoS Attacks
Man-in-the-Middle Attacks
Session Hijacking Attacks
Port Scanning Attacks
Replay Attacks
FTP Bounce Attacks
ARP Cache Poisoning Attacks
VLAN Hopping
Zero Day Attacks
Wireless Threats and Attacks
Firewalls and Proxies
Firewall Categories
Security Zones
Intranet Zone
Perimeter Network
DMZ Options
Screened Host
Bastion Host
Three-homed Firewall
Back-to-back Firewalls
Dead Zone
Traffic Filtering
NAT and PAT
Port Address Translation
Firewall Administration
Rule Planning
Port Security
Intrusion Detection
Events
NIDS
IDScenter for Snort
Example Snort Rule
HIDS
Advantages of HIDS over NIDS
Authentication
Authentication Factors
User Name and Password Authentication
Two-Factor Authentication
Multifactor Authentication
Strong Passwords
Patch Management
Security Policies (Cont.)
SSH
Demo – Network Security
Securing the Operating System
Windows Update
Updates
Demo – Vulnerability
Honeypots and Honeynets
Honeypot Examples
Honeypot Deployment
Account Expiration
Education
Communication
User Awareness
Lesson 12 – Responding to Security Incidents 4m
Responding to Security Incidents
Human Resources Policies
Incident Response Policy
Preparation
Detection
Containment
Eradication
Recovery
Follow-up
Lesson 13 – Remote Networking 28m
Remote Networking
RADIUS
RADIUS Authentication
TACACS+ vs. RADIUS
Remote Desktop Services
RADIUS (Cont.)
VPN Technologies
VPN Security Models
VPN Protocols
PPTP vs. L2TP
IPSec Protocols
IPSec Encryption
PPPoE
Tunneling Protocols
Lesson 14 – Network Management 1h 1m
Network Management
Acceptable Use
Due Care
Privacy
Separation of Duties
Need to Know
Service-level Agreement
Network Analyzer
TCP/IP Utilities
IPConfig
Ifconfig
Ping (Packet Internet Groper)
Ping Troubleshooting
NSLookup and Tracert
Demo – Software Tools
Performance Monitor
Performance Objects
Bottlenecks
Configuration
Event Viewer
Event Information
Event Types
Device and Application Logging
Syslog
Syslog Alert Levels
SNMP
Network Monitor
Demo – Network Monitoring
Troubleshooting
Lesson 15 – Troubleshooting Network Issues 2h 27m
Troubleshooting Network Issues
Common Problems
Troubleshooting
Troubleshooting Models
The Network+ Troubleshooting Model
Troubleshooting Documentation Template
Change Management
Configuration Documentation
Rationales
Methods
Troubleshooting with IP Configuration Utilities
The ping Utility
The traceroute and tracert Utilities
The arp Utility
The NBTSTAT Utility
The NETSTAT Utility
The nslookup Utility
WLAN Survey Software
SNIPS
Loopback Interface
Speed Test Sites
Looking Glass Sites
Demo – Troubleshooting a Switch
Demo – Troubleshooting a Router
Network Technician’s Hand Tools
Hardware Toolkit
Additional Tools
Software Toolkit
Cable Testing Devices
Cable Testing Device
Physical Cable Tests
Network Function Tests
Cable Certifier
Additional Features
Testing a Basic Permanent Link
Crimpers
Coax Crimper
Twisted-pair Cable Crimper
Using a Fiber Optic Cable Crimper
Terminating Fiber Optic Cable
Butt Set
Butt Set Uses
Modapt Device
Toner Probe
Using a Toner Probe
Punchdown Tools
Using a Punchdown Tool
Network Analyzer
Loopback Plugs
TDR
OTDR
Multimeters
Measuring Resistance
Measuring Voltage
Measuring Current
Measuring Continuity
Environmental Monitor
ASHRAE 9.9 Guidelines
Safety Rules
Wire Crimpers
Cable Strippers
Punch Down Tools (Cont.)
Circuit Testers
Multimeters (Cont.)
Voltmeters
Cable Testers
Cable Certifiers
Types of Cable Testers and Certifiers
Crossover Cables
Hardware Loopback Plugs
Time-Domain Reflectometers
Tone Generators and Tone Locators
Environment Monitors
Butt Sets
LED Indicators
Network Analyzers
Demarc
Wireless Testers
Light Meters
Physical Issues
Logical Issues
Routing and Switching Issues
Wireless Issues
Simultaneous Wired/Wireless Connections
Discovery of Neighboring Devices and Nodes
Common Security Configuration Issues
Misconfigured Firewalls
Misconfigured ACLs and Applications
Open or Closed Ports
Authentication Issues
Domain or Local Group Configuration
Malware
DoS Attacks
ICMP-Related Issues
Malicious Users
Improper Access
ARP Issues
Banner Grabbing
Jamming
Troubleshooting Wired Connections
Antivirus Software
Lesson 16 – Planning and Implementing a SOHO Network 16m
Planning and Implementing a SOHO Network
Purposes of a Plan
Creating a Plan
Ongoing Planning
Implementing a Plan
Network Cable
Total Duration: 22h 45m