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Juniper Exam JN0-214 Topic 7 Question 3 Discussion

Actual exam question for Juniper's JN0-214 exam
Question #: 3
Topic #: 7
[All JN0-214 Questions]

Which key value store is used as a Kubernetes's backend store?

Show Suggested Answer Hide Answer
Suggested Answer: A

Kubernetes relies on a distributed key-value store to maintain its state and configuration data. Let's analyze each option:

A . etcd

Correct: etcd is a distributed key-value store used as Kubernetes' backend store. It stores all cluster data, including configurations, states, and metadata, ensuring consistency and reliability across the cluster.

B . firebase

Incorrect: Firebase is a Backend-as-a-Service (BaaS) platform for building mobile and web applications. It is unrelated to Kubernetes.

C . postgres

Incorrect: PostgreSQL is a relational database management system. While it can be used for other purposes, it is not the backend store for Kubernetes.

D . mongodb

Incorrect: MongoDB is a NoSQL database used for storing unstructured data. It is not used as Kubernetes' backend store.

Why etcd?

High Availability: etcd is designed for distributed systems, providing strong consistency and fault tolerance.

Cluster State Management: Kubernetes uses etcd to store critical data such as pod states, service definitions, and configuration details.

JNCIA Cloud Reference:

The JNCIA-Cloud certification covers Kubernetes architecture, including the role of etcd. Understanding etcd's function is essential for managing and troubleshooting Kubernetes clusters.

For example, Juniper Contrail integrates with Kubernetes to provide networking and security features, relying on etcd for cluster state management.


Kubernetes Documentation: etcd

Juniper JNCIA-Cloud Study Guide: Kubernetes Architecture

Contribute your Thoughts:

Noel
20 days ago
etcd, the one true backend store for Kubernetes. It's like the Gandalf of the container world, guiding the cluster to victory.
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Denise
21 days ago
etcd, the Kubernetes database. Sounds like a delicious pastry, if you ask me. Maybe I should bring some to the next DevOps meeting.
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Bobbie
24 days ago
Postgres? Nah, that's way too heavyweight for Kubernetes. MongoDB? Please, that's for web apps, not container orchestration. etcd all the way!
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Willard
7 days ago
Agreed, etcd is the best choice for Kubernetes.
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Tresa
12 days ago
etcd all the way!
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Reita
1 months ago
Hmm, etcd sounds about right. I heard it's like the glue that holds the whole Kubernetes cluster together. Gotta love that reliable little database.
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Gladys
3 days ago
Yes, etcd is the key value store used as Kubernetes's backend store.
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Millie
11 days ago
A) etcd
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Mira
1 months ago
Easy! It's gotta be etcd, the go-to key-value store for Kubernetes. I mean, it's practically the handshake of the Kubernetes world.
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Yolando
12 days ago
Yes, you're right! Etcd is the key value store used as Kubernetes's backend store.
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Cassi
1 months ago
I'm not sure, but I think etcd makes sense because it's designed for distributed systems like Kubernetes.
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Brittni
1 months ago
I agree with Lai, etcd is commonly used as Kubernetes's backend store.
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Lai
2 months ago
I think the answer is A) etcd.
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