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Juniper JN0-214 Exam - 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

by Sue at Feb 07, 2025, 02:31 AM

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Alaine
3 months ago
Nah, I think it’s more like MongoDB for some setups.
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Bo
3 months ago
Yep, etcd is the right choice!
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Dorothy
3 months ago
Wait, is it really etcd? I thought it could be something else.
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Michal
4 months ago
Totally agree, etcd is the backend.
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Carmelina
4 months ago
It's etcd, for sure!
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Laquita
4 months ago
I thought it might be Firebase at first, but now I'm leaning towards etcd since it seems to fit the context of Kubernetes better.
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Erick
4 months ago
Wasn't there a question about key value stores in the last practice exam? I feel like etcd was the answer there too, but I'm not completely sure.
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Herminia
4 months ago
I recall practicing a question about Kubernetes and its components, and I believe etcd was the backend store mentioned there.
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Margurite
5 months ago
I think it's etcd, but I can't remember if there were other options mentioned in the study materials.
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Claribel
5 months ago
Based on my understanding, etcd is the correct answer. Kubernetes uses etcd as its primary data store for storing cluster state, configuration, and metadata. It's a reliable and scalable key-value store that's well-suited for Kubernetes' needs.
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Keneth
5 months ago
I'm a bit confused by this question. I know Kubernetes uses some kind of backend storage, but I'm not sure if it's etcd, firebase, postgres, or mongodb. I'll have to review my notes on Kubernetes architecture to be sure.
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Evangelina
5 months ago
Okay, let me think this through step-by-step. Kubernetes is a container orchestration platform, so it needs a way to store and manage cluster data. I believe etcd is a popular open-source distributed key-value store, so that seems like the most likely answer here.
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Derick
5 months ago
Hmm, I'm not entirely sure about this one. I know Kubernetes uses some kind of key-value store, but I can't recall the specific name. I'll have to think this through carefully.
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Twila
5 months ago
I'm pretty confident that the answer is etcd, since I remember learning that Kubernetes uses etcd as its backend store for storing cluster state and configuration data.
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Noel
12 months 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
12 months 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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Denna
11 months ago
Yes, etcd is the key value store used as Kubernetes's backend store.
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Cherelle
11 months ago
I think the answer is A) etcd.
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Bobbie
1 year 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
11 months ago
Agreed, etcd is the best choice for Kubernetes.
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Tresa
12 months ago
etcd all the way!
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Reita
1 year 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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Emelda
11 months ago
Definitely! It helps with storing configuration data and managing cluster state.
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Carline
11 months ago
Hmm, I thought so. It's an essential component for Kubernetes.
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Gladys
11 months ago
Yes, etcd is the key value store used as Kubernetes's backend store.
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Millie
12 months ago
A) etcd
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Mira
1 year 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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Arlette
11 months ago
No doubt about it, etcd is the perfect fit for Kubernetes.
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Ethan
11 months ago
I agree, etcd is like the backbone of Kubernetes.
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Shalon
11 months ago
Etcd is definitely the go-to choice for Kubernetes.
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Yolando
12 months ago
Yes, you're right! Etcd is the key value store used as Kubernetes's backend store.
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Cassi
1 year 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 year ago
I agree with Lai, etcd is commonly used as Kubernetes's backend store.
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Lai
1 year ago
I think the answer is A) etcd.
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