* Understand network fundamentals including OSI, TCP/IP, IP addressing, and subnetting
* Design secure network architectures using segmentation, DMZ, and defense-in-depth
* Configure firewalls, IDS/IPS, and access control policies
* Detect and mitigate attacks including ARP poisoning, DNS spoofing, and DHCP abuse
* Analyze network traffic and integrate logging with SIEM platforms
* Strengthen network infrastructure against external and internal threats
* Improve visibility through logging, monitoring, and telemetry
* Enable secure remote access through VPN and access control policies
* Detect and respond to threats faster using IDS/IPS and SIEM integration
The CA402 program takes you deep into how networks actually function and how they are secured, attacked, and defended in real environments. You move from core connectivity concepts to designing architectures, enforcing controls, and monitoring live network activity.
Build a deep understanding of how networks operate, from devices to communication models.
Grasp how data flows across layers and why architecture decisions impact security.
Shift into how networks actually transmit data and communicate using protocols.
Explore addressing, routing, and the mechanics behind modern connectivity.
Move into structured defense by designing secure network layouts and boundaries.
Understand how segmentation limits attacker movement and reduces risk.
Dive into defensive mechanisms that actively protect and monitor networks.
Learn how attackers exploit protocols and how defenders detect and stop them.
Focus on visibility and control how defenders enforce policies and detect threats.
Combine logging, monitoring, and intrusion detection into a unified defense strategy.
Bring everything together through real-world operations and incident handling.
Develop the ability to detect, investigate, and respond to network threats effectively.
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Attackers exploit weaknesses across network layers. Common techniques include ARP poisoning to intercept internal traffic, DNS spoofing to redirect users to malicious servers, DHCP attacks to manipulate network configurations, and lateral movement after initial access.
You will develop hands-on skills in designing secure network architectures (DMZ, segmentation, VLANs), configuring and auditing firewalls, monitoring traffic using logs, NetFlow, and packet capture, using IDS/IPS for detection, and responding to network incidents with structured workflows.
Without segmentation, an attacker who compromises one system can move freely across the network. Segmentation techniques like DMZs and VLANs create controlled boundaries, limiting lateral movement and protecting critical assets.
Detection relies on analyzing network telemetry, including firewall and system logs, traffic flow data such as NetFlow and sFlow, packet captures through PCAP analysis, and IDS/IPS alerts.
Frequent weaknesses include overly permissive firewall rules, lack of outbound (egress) filtering, misconfigured VPN access with split tunneling risks, weak monitoring and logging, and poor network segmentation.
