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Exam DCA topic 1 question 87 discussion

Actual exam question from Mirantis's DCA
Question #: 87
Topic #: 1
[All DCA Questions]

A Kubernetes node is allocated a /26 CIDR block (64 unique IPs) for its address space.
If every pod on this node has exactly two containers in it, how many pods can this address space support on this node?

  • A. 32
  • B. 32 in every Kubernetes namespace
  • C. 64 for every service routing to pods on this node
  • D. 64
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Suggested Answer: A 🗳️
by I_am_still_a_robot at Jan. 23, 2024, 8:19 p.m.

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bes_i
3 months, 1 week ago
Selected Answer: D
Multiple containers within a pod share the same IP address, network namespace, and can communicate with each other over localhost
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ubdubdoo
5 months ago
Each pod requires one unique IP address, regardless of the number of containers within the pod. The containers within a pod share the same IP address.
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I_am_still_a_robot
10 months ago
D In a typical Kubernetes cluster, each pod is assigned its own IP address from the allocated address space. However, if multiple containers are running within a pod, they share the same network namespace and, therefore, the same IP address.
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