CloudNetX study plan
CloudNetX · Give each week a clear focus.
8 weeks · About 7 hours per week
Network architecture design
Map the exam blueprint's Domain 1 sub-objectives into a personal gap list with a confidence rating (1-5) for each
Sketch a three-tier cloud network topology (edge, transit/hub, workload VPC/VNet) on paper and justify each tier's purpose aloud in under five minutes
Compare hub-and-spoke against a full-mesh transit design on cost, blast radius, and routing complexity, writing a one-paragraph trade-off for each
Configure a basic VPC/VNet with two subnets, route tables, and an internet gateway in a free-tier cloud account and verify reachability
Your checkpoint
A one-page architecture decision record (ADR) for the three-tier topology plus a screenshot-verified working two-subnet network in a sandbox cloud account
Network architecture design
Design a hybrid connectivity solution that combines site-to-site VPN and dedicated interconnect, stating when each is preferred
Size and place subnets across at least two availability zones and document the CIDR allocation scheme to avoid overlap
Explain how DNS, load balancing, and service endpoints interact in a multi-tier application by tracing one request end to end
Draft a redundancy and failover plan for a single-region design, naming the failure modes it covers and those it does not
Your checkpoint
A two-page hybrid network design document including a CIDR table, a request-flow trace, and an explicit failure-mode/resilience matrix
Network security
Classify the shared-responsibility boundary for network controls across IaaS, PaaS, and SaaS with three concrete examples per model
Build a layered segmentation scheme (security groups, NACLs/firewall rules, network policies) and justify the ordering of enforcement points
Configure identity-based and network-based access controls in a sandbox and prove that an unauthorized path is blocked
Enumerate the top five cloud network attack surfaces (public exposure, lateral movement, credential theft, misconfigured peering, DNS abuse) and pair each with a mitigating control
Your checkpoint
A segmentation and control matrix mapping each of the five attack surfaces to a specific enforced control, with evidence of one blocked-path test
Network architecture design & Network security
Redesign last week's segmentation to add inspection (firewall/IDS) without breaking the request flow, and document the new packet path
Perform a threat-model pass (STRIDE or similar) on the Week 2 hybrid design and record at least six threats with mitigations
Compare zero-trust network access with traditional VPN concentrator models on latency, auditability, and operational cost
Reconcile the architecture and security documents so every control in the matrix maps to a component in the topology
Your checkpoint
A consolidated architecture-and-security review package: updated topology diagram, threat model table, and a control-to-component traceability list
Network operations, monitoring, and performance
Instrument a sandbox network with flow logs, metrics, and at least one alert threshold, then trigger the alert deliberately
Write three queries or filters that isolate traffic by source, destination, and rejected connections, and interpret the results
Define four service-level indicators for network health (latency, error rate, throughput, saturation) and state the measurement source for each
Distinguish what each telemetry type (flow logs, packet capture, metrics, traces) can and cannot answer
Your checkpoint
A monitoring runbook page containing the four SLIs, their data sources, the alert rule definitions, and one deliberately triggered alert with captured evidence
Network troubleshooting
Diagnose a simulated connectivity failure by working the layer stack (name resolution, routing, security policy, endpoint health) and record each test and result
Reproduce and resolve a routing-loop or asymmetric-path scenario in the sandbox and explain the root cause in writing
Build a triage decision tree that separates DNS, security-group, route-table, and peering causes within a bounded number of steps
Practice articulating a troubleshooting narrative aloud in under three minutes for a peer audience
Your checkpoint
A troubleshooting case file for two resolved faults, each with symptom, hypothesis list, tests performed, root cause, and fix, plus the triage decision tree
Network architecture design & Network security & Network operations, monitoring, and performance & Network troubleshooting
Complete a timed mixed-domain practice set and tag every miss by domain and by failure type (knowledge gap, misread, or reasoning error)
Re-teach the three weakest tagged topics from memory on a blank page, then check against source material
Re-derive the architecture and security trade-offs from Weeks 1-4 without notes to confirm retention
Reduce the personal gap list from Week 1 to no more than five remaining low-confidence items
Your checkpoint
An updated gap list with five or fewer open items, supported by a scored practice-set log categorized by domain and error type
Network architecture design & Network security & Network operations, monitoring, and performance & Network troubleshooting
Drill the remaining low-confidence items until each is explained correctly twice in a row without references
Rehearse design and troubleshooting scenarios under time pressure, speaking the structure (requirements, constraints, trade-offs, verification) each time
Review the Week 4 package and Week 6 case files to consolidate cross-domain reasoning patterns
Finalize a one-page pre-exam reference sheet of decision rules, limits, and trade-off heuristics
Your checkpoint
A completed one-page decision-rule reference sheet plus a final readiness scorecard showing all Week 1 gap items resolved or explicitly accepted
Milestones
Week 2: Can produce a three-tier cloud topology with a valid non-overlapping CIDR plan and justify hybrid connectivity choices in under ten minutes without notes
Week 4: Every security control in the matrix traces to a named component in the topology, and at least one blocked-path test is documented with evidence
Week 6: Can diagnose a seeded connectivity fault end to end using the triage tree and state the root cause in under fifteen minutes
Week 8: All Week 1 gap items are resolved or consciously accepted, and the reference sheet fits on one page with no unresolved placeholders