Exam (elaborations)
Kubernetes Certification Administrator Exam.
- Course
- Institution
Kubernetes Certification Administrator Exam.
[Show more]
Seller
Follow
Tutormodock
Content preview
Kubernetes Certification AdministratorExam
API server - correct answer-Also known as:kube-apiserver
The API server is a component of the Kubernetes control plane that exposes the Kubernetes
API. The API server is the front end for the Kubernetes control plane.
[-]
The main implementation of a Kubernetes API server is kube-apiserver. kube-apiserver is
designed to scale horizontally—that is, it scales by deploying more instances. You can run
several instances of kube-apiserver and balance traffic between those instances.
App Container - correct answer-Application containers (or app containers) are the containers
in a pod that are started after any init containers have completed.
[-]
An init container lets you separate initialization details that are important for the overall
workload, and that don't need to keep running once the application container has started. If a
pod doesn't have any init containers configured, all the containers in that pod are app
containers.
CIDR - correct answer-CIDR (Classless Inter-Domain Routing) is a notation for describing
blocks of IP addresses and is used heavily in various networking configurations.
[-]
In the context of Kubernetes, each Node is assigned a range of IP addresses through the
start address and a subnet mask using CIDR. This allows Nodes to assign each Pod a
unique IP address. Although originally a concept for IPv4, CIDR has also been expanded to
include IPv6.
Cluster - correct answer-A set of worker machines, called nodes, that run containerized
applications. Every cluster has at least one worker node.
[-]
The worker node(s) host the Pods that are the components of the application workload. The
control plane manages the worker nodes and the Pods in the cluster. In production
environments, the control plane usually runs across multiple computers and a cluster usually
runs multiple nodes, providing fault-tolerance and high availability.
Container - correct answer-A lightweight and portable executable image that contains
software and all of its dependencies.
[-]
Containers decouple applications from underlying host infrastructure to make deployment
easier in different cloud or OS environments, and for easier scaling.
Control Plane - correct answer-The container orchestration layer that exposes the API and
interfaces to define, deploy, and manage the lifecycle of containers.
[-]
This layer is composed by many different components, such as (but not restricted to):
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Tutormodock. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
49497 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now