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Linux Foundation CCA Exam Syllabus Topics:
| Section | Weight | Objectives |
| Cilium Introduction & Fundamentals | 20% | - Cilium use cases and benefits
- What is Cilium
- Cilium architecture components
- eBPF overview and relationship with Cilium
- Cilium vs traditional CNI plugins
|
| eBPF Fundamentals | 20% | - eBPF maps
- eBPF basics and concepts
- eBPF in Kubernetes context
- eBPF lifecycle and tooling
- eBPF program types
|
| Cilium Installation & Configuration | 15% | - Installation methods (Helm, operator)
- Integration with Kubernetes
- Cilium agent and operator
- Cilium CLI basics
- Basic configuration options
|
| Hubble for Observability | 15% | - Hubble UI
- Network flow logging
- Hubble overview and architecture
- Flow visualization
- Hubble CLI (hubble observe)
|
| Cluster Connectivity & Multi-Cluster | 10% | - Service discovery across clusters
- Cross-cluster networking
- Cilium ClusterMesh
|
| Network Policies & Security | 20% | - Layer 7 policies (HTTP, Kafka, DNS)
- Policy enforcement modes
- Policy debugging and visibility
- CiliumNetworkPolicy CRD
- Layer 3 and Layer 4 policies
|
Linux Foundation Cilium Certified Associate (CCA) Sample Questions:
1. Which steps are involved in troubleshooting a failed Cilium installation?
(Choose two)
A) Review the Cilium logs using kubectl logs
B) Restart the Kubernetes master node
C) Upgrade the Kubernetes version to 1.20
D) Re-run the cilium install command with increased verbosity
2. How does Cilium integrate with BGP to support external networking in Kubernetes?
(Choose Two)
A) By enabling cross-cluster communication through BGP peering
B) By routing traffic between Kubernetes clusters and external networks
C) By automating the assignment of pod IP addresses
D) By providing DNS resolution for internal services
3. What role does eBPF play in Cilium's architecture?
A) Directly manages the storage volumes within Kubernetes
B) Coordinates cluster logging and monitoring
C) Enhances the network security by enabling flexible packet filtering and routing
D) Manages user permissions within the cluster
4. What are the functionalities provided by the 'cilium config' command in the CLI?
(Choose Two)
A) Generate a report on Cilium's health
B) Modify existing Cilium configuration parameters
C) Display current Cilium configuration
D) Install new Cilium components
5. In terms of external connectivity, what functionality does Cilium's native egress gateway provide?
A) It allows all external traffic to bypass Kubernetes services
B) It encrypts all data leaving the cluster
C) It selectively directs traffic from specific pods to external destinations
D) It routes all internal traffic through a single external IP
Solutions:
Question # 1 Answer: A,D | Question # 2 Answer: A,B | Question # 3 Answer: C | Question # 4 Answer: B,C | Question # 5 Answer: C |