CCNA Certification
Functions of Networking
- The Basics of a Computer Network
- Components of a Computer Network
- Network Topologies
- Impact of the Application on the Network
Network Communications
- The Complexity Behind Simple Networking
- The Need for ISO Networking Models
- TCP/IP Horizontal and Vertical Communication
Local Area Networks
Cisco IOS Software
Connection Media
- Exploring Ethernet Technology and Common Variants in LANs
- Coaxial Cable
- Ethernet Cable
- Optical Fiber
- Speed and Duplex
Ethernet Frame Structure
Operating a Cisco Switch
- The Importance of a Switch Deployment
- Switch Installation
- Console Port
- LED Indicators
- Show Commands for Basic Information
TCP/IP Internet Layer
- Internet Protocol Overview
- IPv4 Header Overview
- Understanding Decimal and Binary Number Systems
- Understanding IPv4 Address Format
- IPv4 Address Classes Overview
- Subnet Mask Overview
- Private and Public IPv4 Addresses
- The Need for Subnets
TCP/IP Network and Application Layers
- TCP/IP Transport Layer Overview
- TCP Characteristics
- UDP Characteristics
- TCP/IP Application Layer Overview
- HTTP Overview
- DNS Overview
Routing
- The Importance of Routing
- The Role of a Router in a Network
- Routing Table
- Path Determination Overview
Operating a Cisco Router
- Deploying Routers
- Exploring the Features of a Router
- Exploring the Initial Router Setup
- Exploring Interfaces
- Configuring Router Interface
- Verifying Interface Configuration
Discovering Connected Devices
- Discovering the Network
- Implementing Cisco Discovery Protocol
- Configuring CDP
- Implementing Link Layer Discovery Protocol
- Configuring LLDP
Functionalities of DHCP
- DHCP: An In-depth Overview
- Understanding DHCP Operations
- DHCP Allocation Mechanisms
- Configuring DHCP
- The Need for a DHCP Relay
Packet Delivery Process
- Basics of Network Communication
- The Importance of Using the Address Routing Protocol (ARP)
- The Need for a Default Gateway
- Packet Delivery Process Overview
Implementing Static Routing
- Introduction to Static Routing
- Advantages and Disadvantages of Static Routing
- Configuring Static Routing
OSPF Configuration
- Introduction to Dynamic Routing
- Types of Routing Protocols
- When to Use Dynamic Routing
- Introduction to OSPF
- OSPF Data Structures
- Establishing OSPF Neighbor Adjacencies
- OSPF Metric Calculation
- OSPF Neighbor States
- Implementing OSPF
- Miscellaneous Notes
Understanding IPv6
- The Need for IPv6
- IPv6 Address Format
- IPv6 Address Types
- The Importance of ICMPv6
- Neighbor Discovery
- IPv6 Address Allocation
- Static IPv6 Routing
- IPv6 OSPF Routing
Exploring Troubleshooting
- Modern Network Problems
- The Importance of Troubleshooting
- Troubleshooting Process
- Troubleshooting Methods
- Troubleshooting Tools
VLANs and Trunks
- Implementing VLANs
- The Need for Trunking
- VLAN Recommendations
- Dynamic Trunking Protocol
- Inter-VLAN Routing
- Implementing the Router-on-a-Stick Solution
- Configuring the Router-on-a-Stick Solution
Layer 2 Redundancy
- The Importance of Physical Redundancy in Networks
- The Issues in Redundant Topologies
- Implementing Spanning Tree Protocol
- Types of STP Protocols
- Portfast and BPDU Guard
Layer 3 Redundancy
- The Importance of Default Gateway Redundancy
- Understanding FHRP
- FHRP Variants
- Implementing HSRP
- HSRP Advanced Features
Improving Redundancy with EtherChannel
- EtherChannel: An In-depth Overview
- EtherChannel Configuration Options
- EtherChannel Configuration Requirements
- EtherChannel Configuration Example
Access Control Lists
- Access Control List Overview
- ACL Architecture and Operation
- Types of ACLs
- Methods for Creating ACLs
- Configuration Example
Network Address Translation
- The Problem With IPv4
- NAT Overview
- Advantages of NAT
- Disadvantages of NAT
- NAT Terminology
- NAT in Production
- Static NAT Overview
- Dynamic NAT Overview
- PAT Overview
Cisco Device Management
- The Importance of Device Management
- Cisco File Systems Overview
- Exploring the Router Boot Sequence
- Loading System Image Files
- Loading Configuration Files
- Loading and Managing System Image and Configuration Files
Device Monitoring
- The Importance of Monitoring
- Syslog Overview
- SNMP Overview
- NetFlow Overview
- Network Time Protocol (NTP) Overview
Securing Administrative Access
- Security Threats to Administrative Access
- Securing Console Access
- Securing Access to Privileged EXEC Mode
- Securing Remote Access
- Configuring Banner Messages
- Administrative and Network Access
- Local vs. Centralized Deployment
- AAA Protocols
Device Protection
- Securing Unused Ports
- Disabling Unused Services
- Port Security Overview
- Infrastructure ACL
- Mitigating VLAN Attacks
- Mitigating STP Attacks
- Mitigating DHCP Attacks
- Mitigating ARP Spoofing Attacks
Security Threats
- Security Threats Overview
- Malware Overview
- The Importance of Hacking Tools
- DoS Attack Overview
- DDoS Attack Overview
- Social Engineering Overview
- Phishing Attack Overview
- Spoofing Attacks Overview
- Man-in-the-Middle Attacks Overview
- Password Attacks Overview
- Reconnaissance Attacks Overview
Threat Defense Technologies
- The Importance of Security Deployment
- Introducing Firewall
- Introducing IPS Systems
- Cryptographic Technologies Overview
- IPsec Security Services Overview
- SSL and TLS
- Wireless Security Protocols
- Mainstream Threats Overview
WAN Technologies
- WAN Overview
- WAN Characteristics
- WAN Topologies
- WAN Connectivity Technology Overview
- WAN Components
- WAN Connectivity Options
- Current and Emerging WAN Connectivity Options
- Broadband Internet Access Overview
- MPLS Overview
- Enterprise Internet Connectivity Overview
- Virtual Private Network Overview
- VPN Deployment Types
Implementing QoS
- The Need for Quality of Service
- The Importance of Quality of Service
- QoS Policy Overview
- QoS Mechanisms
- QoS Models
Wireless Technology
- The Importance of Wireless Communications
- Types of Wireless Networks
- Wireless Network Components
- Wireless Architectures
- Service Set Identifier
- Wireless Standards
- Potential Wireless Issues
Network Architecture and Virtualization
- Network Design Overview
- Issues in a Poorly Designed Network
- Network Design Considerations
- Three-Tier Hierarchical Model
- Spine-and-Leaf Model
- Cisco Enterprise Architecture Model
- Cloud Technology Overview
- Network Device Architecture Overview
- Virtualization Overview
Intelligent Networks
- The Importance of Network Automation
- Network Programmability Overview
- Foundation of Network Programmability
- Network Programmability Options
- Software-Defined Networking Overview
- The Evolution of Network Configuration
- Configuration Management Tools
- Cisco DNA Center Overview
- Cisco SD-Access Overview
- Cisco SD-WAN Overview