Uploaded on
17 Mar 2023
Skill-Lync
As the demand for IT professionals with experience in containerization technologies such as Docker and Kubernetes increases, employers seek candidates who know how to use these tools to create and manage cloud-native applications.
In this article, we’ll look at the frequently asked 10 Docker and Kubernetes interview questions for freshers.
Answer: Orchestration in software and DevOps is the process of automating the management and deployment of IT services, such as provisioning, configuration, patching, upgrades, and process orchestration.
It helps to reduce manual effort, ensure high availability and scalability, and provide easier monitoring and management of services. Additionally, it allows for changes to be quickly rolled back if needed.
Answer: Google Container Engine makes it effortless to create and manage clusters of virtual machines hosted on the Google Cloud Platform, leveraging the power of Google Kubernetes technology. With Container Engine, you can easily deploy and manage container-based applications on a cluster of machines.
Answer: Heapster is a performance monitoring and event tracking tool used in Kubernetes. It collects and aggregates performance metrics from all nodes in the Kubernetes cluster and provides an easy-to-use interface to query and visualise the collected data. It can also track events, such as when a pod is created, deleted, or updated.
Answer: Kubernetes and Docker are both containerization technologies, but they are used for different purposes. Docker is used for packaging and running individual applications, while Kubernetes is used for managing and deploying those applications across multiple machines.
Kubernetes can orchestrate, schedule, and manage Docker containers, making deploying, scaling, and managing applications easier.
Answer: The master node in Kubernetes is the control plane that manages and coordinates all nodes in the cluster, schedules workloads, and maintains the cluster's state.
It communicates with the nodes using the Kubernetes API and manages the cluster's configuration, setting up networking, storage, and services and running the Kubernetes control plane components.
Answer: The key attributes of Docker include the following:
Answer: The primary disadvantages of using Docker are as follows:
Answer: The memory-swap flag in Docker is used to specify the total memory and swap memory available to a container. This flag can set a container's total memory and swap memory limits.
This can be useful for ensuring that a container does not consume too much memory on the host system or for limiting the amount of swap memory available.
Answer: Kubernetes uses ETCD to store, share and synchronise its data and configurations across nodes. Although ETCD was designed for use by CoreOS, it is open-source and can be used on multiple platforms such as Linux, BSB, and OS X. ETCD is the central source of truth for a Kubernetes cluster and keeps track of the cluster's state at any given time.
Answer: A Docker image is a preconfigured, read-only template that provides instructions for creating and running a container on a Docker engine. It contains all the necessary components and resources required to create and operate a container, such as software libraries, system tools, code, and runtime.
Overall, these are some of the most asked Kubernetes and Docker interview questions that give you a good understanding of the subject and the ability to answer questions related to it confidently.
Preparing Kubernetes and Docker interview questions is a good start for an interview, but there are also other important things to consider. Before you proceed, consider the following:
We hope the aforementioned top Docker and Kubernetes interview questions for developers have provided you with a thorough comprehension of the answers to your upcoming interview questions.
With Skill-Lync, you can learn more about the subject and better understand the technology. Our specialised courses available at can help you ace the upcoming interviews and make you successful. We also provide placement support and help you to prepare for interviews.
Talk yo our experts and book your free demo.
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Anup KumarH S
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