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| Section | Weight | Objectives |
|---|---|---|
| Architecture | 20% | - CNI integration and kube-proxy replacement - Cilium core architecture and components |
| Installation and Configuration | 10% | - Deployment methods (Helm, cilium-cli) - Post-install validation and connectivity testing |
| Network Observability | 10% | - Hubble architecture and CLI usage - Hubble UI and troubleshooting basics - Layer 7 visibility and flow monitoring |
| Network Policy | 18% | - Cilium vs Kubernetes network policies - Policy enforcement modes - Identity-aware and L3–L7 policy models |
| BGP and External Networking | 6% | - BGP peering and service advertisement - External gateway integration |
| Service Mesh | 16% | - Transparent traffic encryption - Ingress and Gateway API integration - Sidecar vs sidecarless architecture |
| Cluster Mesh | 10% | - Multi-cluster connectivity and service discovery - Cross-cluster load balancing and failover |
| eBPF | 10% | - eBPF-based networking, security, and observability - eBPF fundamentals and relevance to Cilium |
Fast2test 擬真試題覆蓋範圍可以達到近98％，含蓋PDF格式。成功的幫助你在短時間內通過 Cilium-Associate 考試，取得 Linux Foundation 認證。我們的 Cilium-Associate 擬真試題已經被很多考生使用，并得到了眾多的好評。而且現在購買還有機會贈送打折碼哦。作為臺灣地區最專業的IT認證題庫提供商，我們對所有購買 Cilium-Associate 題庫的客戶提供跟蹤服務，在您購買後享受半年的免費升級考題服務。
問題 #34
What does this Egress Gateway policy achieve?
Cilium Egress Gateway policy exhibit
答案：C
解題說明：
Cilium's official documentation confirms that a CiliumEgressGatewayPolicy selects traffic originating from matching pods , routes traffic destined for the configured destinationCIDRs through the selected egress gateway node, and SNATs that traffic using the configured egressIP.
問題 #35
Why is the iptables implementation of kube-proxy less scalable than eBPF?
答案：D
解題說明：
Technical explanation
B expresses the principal scalability distinction intended by the question. In kube-proxy's iptables mode, Kubernetes Services and endpoints are represented by chains of netfilter rules. As the number of Services and backends grows, rule creation, synchronization, and packet traversal can involve increasingly large rule sets.
Matching through those chains is generally described as having linear scaling characteristics.
Cilium's kube-proxy replacement stores service and backend state in eBPF maps. Hash-map lookups allow the datapath to locate service entries without sequentially scanning a rule for every Service, providing effectively constant-time lookup behavior for the relevant map operations. This makes the approach better suited to large and frequently changing Kubernetes environments.
Option A is false because iptables and netfilter also operate within the Linux kernel. Option C is false because kube-proxy's iptables implementation supports IPv6 when the surrounding Kubernetes and host configuration supports it. Option D does not explain kube-proxy's primary scaling limitation and introduces an unrelated SmartNIC/XDP claim.
The constant-time description is a useful architectural simplification; total performance still depends on map sizing, backend selection, connection tracking, and kernel behavior.
Official references
Cilium eBPF Datapath , Cilium Tuning Guide
Study Guide topic: kube-proxy replacement, eBPF maps, and datapath scalability.
問題 #36
You are tasked to install Cilium and enable transparent encryption in a cluster in which the following conditions applies:
# Internal cluster traffic is IPv6-only
# The current cluster is running on 5001 nodes
# The cluster is planned to connect to another cluster which has 5001 nodes through Cluster Mesh What are your recommendations regarding transparent encryption?
答案：D
解題說明：
Technical explanation
A is a supported recommendation: Cilium's WireGuard implementation provides transparent encryption between Cilium-managed endpoints, works with Cluster Mesh, and distributes node public keys to remote clusters through clustermesh-apiserver . All participating clusters must enable WireGuard, and inter-cluster firewalls must permit UDP port 51871. IPv6-only pod traffic does not inherently disqualify WireGuard.
However, this question is no longer uniquely answerable from current Cilium documentation. Current IPsec documentation supports IPv6 pod-to-pod connectivity and sets its cluster or Cluster Mesh limit at more than
65,535 nodes. The described mesh contains 10,002 nodes, so option B is also technically supportable under the stated facts. The older distinction apparently assumed by the supplied key is no longer sufficient to exclude IPsec.
Options C and D are definitively false. Ten thousand and two nodes remain below the documented IPsec ceiling, and transparent encryption is not restricted to IPv4. WireGuard may still be selected for its automatic per-node key-pair distribution and simpler Cluster Mesh integration, but workload performance, kernel support, firewall rules, key-management requirements, and operational testing should inform a production recommendation.
Official references
WireGuard Transparent Encryption , IPsec Transparent Encryption
Study Guide topic: Transparent-encryption selection, IPv6, Cluster Mesh, and scaling limits.
問題 #37
A Kubernetes cluster is not currently running Cilium as a CNI, but the user would like to benefit from Hubbies observability capabilities on your cluster. Which one of the following options is NOT possible?
答案：C
解題說明：
Technical explanation
Hubble is Cilium's integrated observability layer and consumes flow events produced by Cilium's eBPF datapath and embedded Hubble servers. The Hubble CLI is only a client; downloading its binary does not install a standalone datapath or create flow data on a cluster that lacks Cilium. Option B is therefore the operation that is not possible.
The other approaches represent recognized Cilium deployment or migration models. A direct migration can replace the CNI configuration and recycle workloads or nodes, although a naive cluster-wide transition can disrupt connectivity. CNI chaining allows Cilium to operate with another CNI: the existing plugin continues to provide basic connectivity and IP address management, while Cilium attaches eBPF programs to the created interfaces to provide visibility, policy, and other functions. Cilium also documents migration through dual overlays. In that model, the old and new networks coexist temporarily, nodes are moved in a controlled sequence, and workloads attached to either overlay retain connectivity when the documented addressing and routing requirements are met.
The supplied bank incorrectly marks A. The verified answer is B because Hubble requires Cilium-managed observability data.
Official references
Setting up Hubble Observability ; CNI Chaining ; Migrating a cluster to Cilium .
Study Guide topic: Installation and Configuration.
問題 #38 
Cilium status exhibit
Based on the cilium status output above, what is correct about the Cilium deployment?
For accessibility, the output of the command has been edited.
答案：D
解題說明：
Technical explanation
The status output reports Operator: OK , followed by Deployment cilium-operator Desired: 1, Ready: 1/1, Available: 1/1 . This establishes that the Cilium Operator is deployed and healthy, making B the intended answer. Cilium uses Kubernetes CustomResourceDefinitions as its default mechanism for storing and propagating cluster state, while the operator performs cluster-wide duties that should be handled once centrally rather than independently on every node.
Option A is contradicted by the exhibit: both hubble-ui and hubble-relay appear as ready deployments and running containers. Option C is incorrect because the resource is explicitly identified as a Deployment ; the cilium agents, by contrast, are shown as a DaemonSet . Option D incorrectly treats the displayed desired replica count as a permanent restriction. A desired count of one describes this installation's current configuration, not a universal maximum.
The exhibit also shows embedded Envoy mode and three healthy Cilium agent instances, but neither detail changes the operator conclusion.
Official references
Cilium Component Overview , Setting up Hubble Observability
Study Guide topic: Cilium components, Cilium Operator, CRD-backed state, and status interpretation.
問題 #39
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