Instructions This standalone knowledge assessment tests your architectural mastery of Oracle Cloud Infrastructure (OCI) Networking across all 18 topics in this series. Work through the 20 scenario-based questions in Section 1 first without scrolling down. Once completed, validate your answers…
1. Introduction to Network Diagnostic Engineering Even meticulously designed Oracle Cloud Infrastructure (OCI) network architectures encounter operational failures due to routing misconfigurations, missing Security List rules, stateless firewall return-path drops, asymmetric firewall routes, or BGP tunnel flaps. When an application…
1. Introduction to OCI Network Observability Operating enterprise cloud infrastructure requires continuous visibility into network traffic patterns, performance bottlenecks, security policy evaluation, and routing topologies. Without robust observability tools, diagnosing dropped packets, investigating security breaches, or auditing compliance boundaries becomes…
1. Introduction to Layer 7 Perimeter Protection Public-facing web applications and APIs are continuously targeted by sophisticated application-layer cyber threats—including SQL Injection (SQLi), Cross-Site Scripting (XSS), Remote Code Execution (RCE), Credential Stuffing, and Automated Bot Scrapers. Standard Layer 3/4 firewalls…
1. Introduction to Enterprise Cloud DNS Reliable Domain Name System (DNS) resolution is critical for enterprise cloud operations. Compute instances, microservices, databases, and hybrid on-premises applications rely on DNS to discover endpoints dynamically without hardcoding volatile IP addresses. Oracle Cloud…
1. Introduction to Centralized Transit Security Architecture Enterprise security compliance often mandates that all network traffic—whether moving between internal cloud subnets (East-West traffic) or between cloud workloads and the internet/on-premises (North-South traffic)—must undergo deep packet inspection (DPI) through Third-Party Next-Generation…
1. Introduction to Layer 4 Network Load Balancing While Layer 7 load balancers analyze HTTP/HTTPS application payloads, high-performance network architectures—such as financial trading systems, gaming servers, database clusters, VoIP media gateways, and virtual firewall inspection hubs—require maximum packet throughput and…
1. Introduction to OCI Network Virtualization Oracle Cloud Infrastructure (OCI) approaches network virtualization differently from first-generation public clouds. Rather than running network abstraction layers inside hypervisor software on host CPUs—which introduces latency jitter and noisy-neighbor contention—OCI decouples network virtualization entirely…
1. Introduction to OCI IP Address Management Proper Classless Inter-Domain Routing (CIDR) design and IP Address Management (IPAM) are the foundation of enterprise cloud architecture. In Oracle Cloud Infrastructure (OCI), improper CIDR allocation can lead to IP exhaustion, overlapping subnets…
1. Introduction to OCI VCN Routing In Oracle Cloud Infrastructure (OCI), traffic flow inside a Virtual Cloud Network (VCN) is controlled by software-defined Route Tables. Every subnet within a VCN must be associated with exactly one Route Table. Unlike physical…
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