CCA 시험 - The Linux Foundation실제시험문제와 답 - 172문항

Question No : 1

Which options are available to connect Cilium-managed clusters with external networks? (Choose Two)

A.Direct peerings with external networks using BGP
B.Using NAT gateways for all outgoing traffic
C.Deploying dedicated proxy servers within the cluster
D.Implementing Cilium's native egress gateway

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Question No : 2

Which advantage does eBPF offer over traditional networking methods?

A.Easier integration with legacy systems
B.Lower resource consumption on network devices
C.Higher performance due to kernel-level processing
D.Simpler configuration through GUI tools

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Question No : 3

Which command in Cilium CLI is typically used to list the network policies applied to a specific pod or namespace?

A.cilium policy get
B.cilium status
C.cilium monitor
D.cilium connectivity test

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Question No : 4

Which of the following are true regarding Cilium Architecture? (Choose Two)

A.Relies on traditional Linux networking stacks for data management
B.Utilizes BPF (Berkeley Packet Filter) to dynamically change the behavior of the network nodes
C.Connects with Kubernetes API to manage networking policies effectively
D.Operates independently of the Kubernetes orchestration

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Question No : 5

How does Cilium handle network segmentation within a Kubernetes cluster?

A.By using namespaces as the primary method for segmentation
B.Through identity-based policies that decouple security from IP addresses
C.By enforcing strict VLAN boundaries between pods
D.By requiring manual configuration of IP blocks for each namespace

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Question No : 6

What are the key functionalities enabled by Cluster Mesh? (Choose Two)

A.Automatic mirroring of service endpoints between clusters
B.Direct access control management for each cluster node
C.Cross-cluster traffic management with intelligent routing
D.Centralized storage solutions across multiple clusters

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Question No : 7

What does the "Cilium CLI" primarily provide for Cilium in Kubernetes environments?

A.An interface for configuring the Linux kernel
B.A command-line interface for installing, managing, and monitoring Cilium
C.A GUI for visualizing network policies
D.A logging tool for Kubernetes events

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Question No : 8

What are the functionalities provided by the 'cilium config' command in the CLI? (Choose Two)

A.Display current Cilium configuration
B.Modify existing Cilium configuration parameters
C.Install new Cilium components
D.Generate a report on Cilium's health

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Question No : 9

Why is BGP preferred for managing external network connections in large-scale Kubernetes deployments?

A.It supports high volumes of routing rules without performance degradation
B.It automatically encrypts data sent over the network
C.It is less complex than traditional static routing protocols
D.It relies on fewer physical network interfaces

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Question No : 10

After modifying the Cilium configuration, which command should be run to apply the changes?

A.cilium reload
B.cilium apply-config
C.cilium restart
D.cilium deploy

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Question No : 11

Which component of Cilium is primarily responsible for interpreting and enforcing network policies?

A.Cilium Agent
B.Cilium Operator
C.Cilium Envoy
D.Cilium CLI

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Question No : 12

What does Hubble provide that is particularly useful for debugging network issues in a Kubernetes cluster?

A.Real-time traffic visualization
B.Centralized logging of Kubernetes events
C.Automated cluster upgrades
D.Enhanced pod scaling mechanisms

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Question No : 13

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 routes all internal traffic through a single external IP
C.It selectively directs traffic from specific pods to external destinations
D.It encrypts all data leaving the cluster

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Question No : 14

Which command is used to install Hubble in a Cilium environment?

A.hubble setup
B.hubble install
C.cilium hubble enable
D.cilium hubble start

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Question No : 15

How does Cilium integrate with Kubernetes to manage network policies?

A.By using Custom Resource Definitions (CRDs)
B.Through direct manipulation of Kubernetes API server
C.By injecting sidecar proxies into each pod
D.By modifying the Linux kernel’s routing table

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The Linux Foundation CCA 시험