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Cloud Integration and Hybrid Network Architecture Questions

Designing connectivity and integration between on premise infrastructure and public cloud environments, including hybrid and multi cloud topologies. Topics include dedicated interconnect options and internet based connectivity, routing and network topology trade offs, virtual private networks and software defined wide area networks, network virtualization, security boundary and identity considerations across environments, latency and throughput implications, cost trade offs for interconnects, and operational practices for managing hybrid infrastructure and multi cloud complexity.

MediumTechnical
22 practiced
Draft a sample BGP configuration (Cisco IOS-style) for peering an on-prem router with a cloud virtual router over a Direct Connect link. Include neighbor statements, remote-as, update-source, MD5 authentication, and a route-map example that sets local-preference for failover. Advertise two on-prem prefixes in the config.
MediumTechnical
21 practiced
Design a GitOps-based change management model for hybrid network configurations: define IaC for network resources, pull-request based approvals, automated policy checks (OPA/terraform-compliance), drift detection and remediation, and integration with cloud provider config APIs and on-prem device management. Outline how emergency changes are handled and audited.
HardSystem Design
26 practiced
Design a consistent networking model for Kubernetes clusters that span on-prem and cloud: CNI compatibility, IP address management to avoid overlaps, cross-cluster service discovery, secure cross-cluster communication (mTLS), network policies enforcement, and multi-cluster ingress. Explain how to propagate network policies and troubleshoot cross-cluster issues.
HardSystem Design
19 practiced
Design a multi-tenant SaaS network architecture spanning AWS and Azure. Compare tenant isolation models: dedicated VPC per tenant, shared VPC with microsegmentation, and hybrid approaches. Discuss pros/cons for security, cost, manageability, policy enforcement, telemetry, and onboarding automation.
MediumTechnical
23 practiced
Design a performance testing plan to validate throughput, latency, jitter, and failover behavior of a hybrid interconnect (Direct Connect + VPN fallback). Detail test cases, metrics to capture, tools (iperf, BGP session probes, synthetic transactions), automation approach, and pass/fail criteria for operational acceptance.

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