Sanjay Saha

System Design Compute – Network Storage Data IAM Security Miscellaneous

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1.How to check terraform version?terraform version 2.What is the difference between Plan and Apply in terraform?Plan lets you preview any changes before you apply them. Apply executes the changes defined by your Terraform configuration to create, update, or destroy resources. 3.What is state file in Terraform?Terraform stores information about your infrastructure in a state file. … Continue reading Terraform →

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1. What is staging area?Staging area is files that are going to be a part of the next commit, which lets git know what changes in the file are going to occur for the next commit. 2. What is HEAD?HEAD points to a specific commit to a repo. 3. What’s the difference between a “pull … Continue reading Git →

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1. What are the core principles of system design?Document everythingSimplify your design and use fully managed servicesDecouple your architectureUse a stateless architecture 2. What is SDDC?Software-defined data center (SDDC) refers to a data center where infrastructure is virtualized through abstraction, resource pooling, and automation to deliver Infrastructure-as-a-service (IAAS). 3. What is CNCF?CNCF is the open … Continue reading Architecture →

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1.What do you mean by cloud native?The term cloud native refers to the concept of building and running applications to take advantage of the distributed computing offered by the cloud delivery model. Cloud native apps are designed and built to exploit the scale, elasticity, resiliency, and flexibility the cloud provides.  2.What are the different architecture … Continue reading Cloud →

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1. What is Project Pacific?VMware’s Project Pacific is a re-configuration of vSphere that integrates Kubernetes as it’s control plane to allow for a higher level of abstraction that dramatically simplifies how we build, deploy, and manage modern applications. 2. What is Harbor Registry?VMware Harbor Registry is an enterprise-class registry server that stores and distributes container … Continue reading VMware →

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1. What are the benefits of using Kubernetes?Automated SchedulingSelf-Healing CapabilitiesAutomated rollouts & rollbackHorizontal Scaling & Load Balancing 2. Can you talk about Kubernetes Components?A Kubernetes cluster consists of the components that represent the control plane and a set of machines called nodes.The worker node(s) host the Pods that are the components of the application workload. … Continue reading Kubernetes →

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1. What is a Container?In simplest terms, docker containers consist of applications and all their dependencies.They share the kernel and system resources with other containers and run as isolated systems in the host operating system. 2. What are docker images?They are executable packages(bundled with application code & dependencies, software packages, etc.) for the purpose of … Continue reading Container →

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1.Ansible provides two modes of execution that validate tasks: check mode and diff mode. What is check mode?In check mode, Ansible runs without making any changes on remote systems. Modules that support check mode report the changes they would have made. 2.What is the use of tag in Ansible?If you have a large playbook, it … Continue reading Ansible →

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Introduction A container is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another. A Docker container image is a lightweight, standalone, executable package of software that includes everything needed to run an application: code, runtime, system tools, system … Continue reading How to Use Ansible to Install and Set Up Docker on Ubuntu 20.04 →

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