CND study plan
CND · Give each week a clear focus.
8 weeks · About 6 hours per week
Network Attacks and Defense Strategies
Diagram the seven phases of a network attack lifecycle and label at least two defensive controls that interrupt each phase
Classify 20 given attack techniques (recon, spoofing, MITM, DoS/DDoS, session hijacking, password, malware-based) into their correct category and phase
Build a one-page defense-in-depth map that pairs each attack class with a countermeasure category (preventive, detective, corrective)
Explain the CND security model - defend, detect, respond - and match each of the eight exam domains to it
Your checkpoint
A single-page attack-to-control matrix covering all eight Domain 1 attack categories, each with at least two mapped defenses, scored against a 20-question self-quiz (target 80%+).
Network Attacks and Defense Strategies & Network Perimeter Security
Distinguish firewall types (packet-filtering, stateful, proxy, NGFW) and state the deployment position best suited to each
Configure and validate a sample ACL rule set that enforces a default-deny posture for a three-zone network
Describe IDS vs IPS placement, detection methods (signature, anomaly, protocol) and the trade-offs of each
Sequence the steps of a DMZ design and justify which services belong in each zone
Your checkpoint
A written perimeter design of a three-zone network (Internet, DMZ, internal) including ACL logic, firewall type per layer, and IDS/IPS placement with a rationale paragraph per choice.
Network Perimeter Security & Administrative and Technical Network Security
Compare VPN technologies (IPsec, SSL/TLS, site-to-site vs remote access) and select the appropriate one for three stated business scenarios
Apply hardening baselines to network devices: disable unused services and ports, enforce AAA, lock down management access
Implement network segmentation and VLAN design that separates user, server, and management traffic
Explain identity and access management controls - least privilege, role separation, MFA, and privileged access management
Your checkpoint
A device-hardening checklist for routers, switches, and firewalls with at least 25 verifiable line items, plus a segmented VLAN/IP plan for a sample 200-user organization.
Endpoint Security (Windows, Linux, Mobile, IoT)
Harden a Windows host baseline: patch policy, service reduction, local policy, AppLocker/allowlisting, and logging
Harden a Linux host baseline: file permissions, sudo policy, service minimization, kernel and SSH configuration
Compare endpoint protection approaches - signature AV, EDR, application allowlisting, and patching - and state the gap each one leaves
List the controls specific to mobile (MDM, containerization, BYOD policy) and IoT/OT (network isolation, default-credential elimination, firmware management)
Explain endpoint hardening for servers, BYOD endpoints, and endpoints used for remote work
Your checkpoint
Two side-by-side hardening baselines (Windows and Linux) of at least 20 checks each, with the verification command or GUI path recorded for every check.
Endpoint Security (Windows, Linux, Mobile, IoT) & Application and Data Security
Apply secure coding and application security principles: input validation, output encoding, authentication and session management, error handling
Explain database security controls - encryption at rest and in transit, least-privilege accounts, and injection defenses
Describe data classification, handling, retention, masking, and DLP controls across data states (at rest, in motion, in use)
Illustrate how web-application attacks (XSS, SQLi, CSRF, file inclusion) map to defenses at the WAF, code, and database layers
Your checkpoint
An application-and-data security control table mapping six OWASP-class weaknesses to at least two defenses each, plus a data classification scheme with handling rules for three tiers.
Enterprise Virtual, Cloud, and Wireless Network Security
Differentiate the shared-responsibility split between provider and customer across IaaS, PaaS, and SaaS
Describe virtualization security controls: hypervisor hardening, VM isolation, snapshot and image governance, and sprawl control
Explain wireless security: WPA2/WPA3 vs legacy WEP/WPA, 802.1X/EAP authentication, rogue AP and evil-twin detection, and guest network separation
Select controls for securing a hybrid cloud network edge - segmentation, encryption in transit, and logging
Explain SDN/NFV and virtual network security implications
Your checkpoint
A cloud responsibility matrix for IaaS, PaaS, and SaaS across six control areas, plus a wireless security standard covering authentication, encryption, guest access, and rogue-AP response.
Network Traffic and Log Monitoring and Analysis
Identify the log sources that matter (firewall, IDS/IPS, proxy, DNS, DHCP, authentication, endpoint, cloud audit) and what each uniquely reveals
Explain SIEM workflow: collection, normalization, correlation rules, alerting, and tuning to reduce false positives
Read a packet capture and distinguish normal from suspicious patterns (port scans, beaconing, data exfiltration, ARP spoofing)
Apply traffic-analysis baselines and anomaly thresholds to detect deviations
Describe network behavior analysis metrics and how to escalate an alert into an incident
Your checkpoint
A log-source coverage map naming at least eight log sources, the questions each answers, and two correlation rules written in plain language with expected false-positive sources noted.
Incident Response, Forensics, Business Continuity, Risk and Threat Assessment & Administrative and Technical Network Security
Sequence the incident response lifecycle and produce a role-assigned task list for the first 24 hours of a ransomware incident
Describe forensic process: evidence identification, order of volatility, chain of custody, imaging, and hashing
Explain business continuity and disaster recovery components - BIA, RTO, RPO, backup strategy, and alternate site types
Perform a qualitative risk assessment: identify assets, threats, vulnerabilities, and score risk with a defined matrix
Apply threat modeling and threat intelligence fusion to prioritize remediation
Your checkpoint
A complete incident response playbook for one scenario (ransomware or data exfiltration) including detection triggers, containment steps, evidence handling, notification path, and a risk register of ten scored entries.
Milestones
Week 2: Score 80%+ on a 40-question mixed quiz over Domains 1 and 3, and explain the attack lifecycle and perimeter design out loud without notes.
Week 4: Complete the Windows and Linux hardening baselines and pass a 30-question quiz over Domains 1-4 at 80%+.
Week 6: Produce the cloud responsibility matrix and wireless standard, and score 75%+ on a 50-question cumulative practice exam.
Week 8: Score 85%+ on a full-length timed practice exam with no domain below 70%, and have all eight deliverables assembled in one study portfolio.