Cheat Sheet for Network Engineering

FUNDAMENTALS OF NETWORK ENGINEERING

• Network Topologies (Mesh, Star, Bus, Ring, etc.)
• OSI Model and TCP/IP Stack
• IP Addressing and Subnets
• Common Protocols (HTTP, FTP, SMTP, etc.)
• Cable Types (Coaxial, Twisted Pair, Fiber Optic)
• Networking Devices (Routers, Switches, Hubs, Firewalls)

NETWORK DESIGN AND ARCHITECTURE

• Network Requirements Analysis
• Scalable Network Design
• Redundancy and High Availability
• Designing IP Addressing Scheme
• Virtual LANs (VLANs) and Inter-VLAN Routing
• Network Segmentation and Security Zones

WIRELESS NETWORKING

• Wireless Standards (802.11a/b/g/n/ac/ax)
• Wireless Network Design
• Security in Wireless (WPA, WPA2, WPA3)
• Site Surveys and Signal Strength
• Mobility and Roaming
• Troubleshooting Wireless Issues

NETWORK SECURITY

• Principles of Network Security
• Firewalls and Access Control Lists (ACLs)
• Intrusion Detection and Prevention Systems (IDPS)
• Virtual Private Networks (VPNs)
• Security Protocols (IPSec, SSL/TLS)
• Network Security Policies and Best Practices

NETWORK SERVICES

• DHCP and IPAM (IP Address Management)
• Domain Name System (DNS)
• Network Time Protocol (NTP)
• Quality of Service (QoS) Settings
• Network Monitoring and Management Tools
• Cloud Services and Integration

ADVANCED NETWORKING CONCEPTS

• Software-Defined Networking (SDN)
• Network Function Virtualization (NFV)
• Multiprotocol Label Switching (MPLS)
• IPv6 Implementation and Transition Strategies
• Internet BGP Routing and Autonomous Systems

TROUBLESHOOTING AND MAINTENANCE

• Common Network Issues and Diagnostics
• Network Performance Monitoring
• Root Cause Analysis Techniques
• Patch Management and Firmware Updates
• Disaster Recovery and Business Continuity Plans
• Documentation and Reporting

NETWORK AUTOMATION AND PROGRAMMABILITY

• Introduction to Network Scripting (Python, Bash)
• APIs in Network Engineering (REST, NETCONF)
• Ansible and Terraform for Network Automation
• Continuous Integration/Continuous Deployment (CI/CD) in Networking
• Version Control Systems for Network Configurations

PRACTICAL APPLICATIONS AND CASE STUDIES

• Small Office/Home Office (SOHO) Network Setup
• Enterprise Networking Case Studies
• Service Provider Network Solutions
• Real-World Troubleshooting Scenarios
• Performance Optimization Examples
• Security Incident Response Drill