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Exam KCNA topic 1 question 39 discussion

Actual exam question from Linux Foundation's KCNA
Question #: 39
Topic #: 1
[All KCNA Questions]

What is the main role of the Kubernetes DNS within a cluster?

  • A. Acts as a DNS server for virtual machines that are running outside the cluster.
  • B. Provides a DNS as a Service, allowing users to create zones and registries for domains that they own.
  • C. Allows Pods running in dual stack to convert IPv6 calls into IPv4 calls.
  • D. Provides consistent DNS Names for Pods and Services for workloads that need to communicate with each other.
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Suggested Answer: D 🗳️

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shahy0
1 week, 2 days ago
Selected Answer: D
The main role of Kubernetes DNS within a cluster is to provide consistent DNS names for pods and services, enabling reliable communication between workloads. This service discovery mechanism allows applications and services to locate and communicate with each other using DNS names rather than IP addresses, which can change over time.
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SeaH0rse66
3 months, 3 weeks ago
Selected Answer: D
Kubernetes DNS provides DNS resolution services within a Kubernetes cluster. It ensures that Pods and Services can be discovered and accessed by other Pods and Services using consistent DNS names. This enables seamless communication between different components within the Kubernetes cluster, regardless of their underlying network configurations.
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phcunha
5 months, 2 weeks ago
Think of Kubernetes DNS as the address book in a large office building. Just as the address book provides a consistent reference for finding the location of different departments or individuals within the building, Kubernetes DNS provides consistent DNS names for Pods and Services, allowing workloads within the cluster to discover and communicate with each other efficiently, regardless of their dynamic IP addresses or locations.
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