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Linux Foundation CCA Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Service Mesh | 16% | - Traffic encryption - Sidecar vs sidecarless architecture - Gateway API vs Ingress benefits - Service mesh use cases - Ingress and Gateway API usage |
| Topic 2: eBPF | 10% | - Role of eBPF in Cilium - eBPF vs iptables datapath - Key benefits of eBPF |
| Topic 3: Installation and Configuration | 10% | - Connectivity testing - Cilium CLI usage - Configuration management - Installation methods |
| Topic 4: BGP and External Networking | 6% | - Egress connectivity - BGP configuration basics - External network integration |
| Topic 5: Cluster Mesh | 10% | - Multi-cluster connectivity benefits - Load balancing across clusters - Cross-cluster service discovery |
| Topic 6: Network Policy | 18% | - Policy enforcement modes - Policy rule structure - Kubernetes vs Cilium policies - Cilium network policies and intent - Identity-based security model |
| Topic 7: Network Observability | 10% | - Monitoring and troubleshooting - Observability features - Metrics and logging |
| Topic 8: Architecture | 20% | - Cilium architecture overview - Role of Cilium in Kubernetes environments - Datapath models - Component roles and responsibilities - IP Address Management (IPAM) |
Linux Foundation Cilium Certified Associate (CCA) Sample Questions:
1. What is the primary purpose of Hubble in a Cilium-managed Kubernetes environment?
A) To manage storage volumes
B) To deploy new Kubernetes clusters
C) To handle user authentication
D) To provide visibility into network traffic and security policies
2. In the context of Cilium, which of the following functions does the BPF technology enable?
(Choose Three)
A) Creation of overlay networks
B) Stateless packet filtering
C) Security policy enforcement at packet level
D) Real-time changes to network configuration
E) Automatic load balancing of intra-cluster traffic
3. What functionality does eBPF provide that is particularly beneficial for cloud-native environments?
A) Automated kernel upgrades
B) Integration with legacy hardware
C) Static IP management
D) Real-time security policy enforcement and network telemetry
4. How does eBPF support security policy enforcement in Cilium?
A) By integrating with third-party firewalls
B) By managing access control lists (ACLs) in the cloud
C) By enforcing rules directly within the Linux kernel
D) By filtering traffic at the application layer only
5. What is the key difference between sidecar-based and sidecarless service mesh architectures?
A) The presence of a central management plane
B) The use of individual proxies within each pod
C) The encryption methods used for intra-service communication
D) The scaling capabilities for large clusters
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C,D,E | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: B |
