QualCert Level 4 Diploma in Digital & IT – Network Engineer

Network Infrastructure Fundamentals

• Understand the core components and architecture of modern network infrastructure
• Explain network topologies, protocols, and communication models
• Identify hardware devices such as routers, switches, firewalls, and access points
• Describe the functions of IP addressing and subnetting in network design
• Recognise the role of network standards and compliance requirements

Switching and Routing Technologies

• Explain the principles of switching and routing within LAN and WAN environments
• Configure and manage switches and routers using industry-standard commands
• Understand routing protocols such as OSPF, BGP, and RIP
• Analyse network traffic flow and routing tables for efficient data delivery
• Implement VLANs and inter-VLAN routing for network segmentation

Network Security and Threat Management

• Understand common network security threats and vulnerabilities
• Implement firewalls, VPNs, and access control lists to protect network resources
• Apply security best practices for wireless and wired networks
• Use intrusion detection and prevention systems to monitor network activity
• Develop strategies for incident response and disaster recovery

Network Troubleshooting and Performance Monitoring

• Identify and diagnose common network faults and connectivity issues
• Use diagnostic tools such as ping, traceroute, and network analyzers effectively
• Monitor network performance metrics including bandwidth, latency, and packet loss
• Develop maintenance schedules and update network documentation
• Apply problem-solving methodologies to resolve complex network problems

Cloud Networking and Virtualisation

• Understand cloud service models (IaaS, PaaS, SaaS) and deployment types (public, private, hybrid)
• Configure virtual networks using platforms such as VMware, Hyper-V, or cloud providers
• Manage virtual machines, containers, and software-defined networking (SDN)
• Evaluate benefits and challenges of cloud-based networking solutions
• Implement network policies and security within virtualised environments

Network Design and Project Implementation

• Plan and design scalable and resilient network architectures based on requirements
• Produce detailed network design documentation including diagrams and specifications
• Manage network installation and configuration projects from initiation to completion
• Coordinate with stakeholders and technical teams to ensure successful delivery
• Evaluate project outcomes and recommend improvements for future network deployments