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Top 80+ Android Interview Questions and Answers

Top 80+ Android Interview Questions Answers Basic Android interview questions for experienced and freshers developers and testers: In this technological era, there is a huge demand for Android Application developers and it is one of the highly paid jobs too. Hence many tech-savvy people are trying to make their way into this career. There are several tricky interview questions that are asked in many MNC’s and some small scale companies. And this article includes a set of such Android interview questions and answers that will be helpful to millions of job seekers. Let’s Explore!! Android Interview Questions This article includes a set of most commonly asked android interview questions and answers covering almost all the important concepts in simple terms in order to enable any job seeker to clear the interview successfully. Most Popular Android Interview Questions & Answers Given below is the list of most commonly asked Android Interview questions 01. What is android? Android is a
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DOCKER Interview questions

DOCKER 1. What is Docker? Docker is Open Source software. It provides the automation of Linux application deployment in a software container. We can do operating system level virtualization on Linux with Docker. Docker can package software in a complete file system that contains software code, runtime environment, system tools, & libraries that are required to install and run the software on a server. 2. What is the difference between Docker image and Docker container? Docker container is simply an instance of Docker image. A Docker image is an immutable file, which is a snapshot of container. We create an image with build command. When we use run command, an Image will produce a container. In programming language, an Image is a Class and a Container is an instance of the class. 3. How will you remove an image from Docker? We can use docker rmi command to delete an image from our local system. Exact command is: % docker rmi <Image Id> If we want to fin

UNIX Shell Interview Questions

UNIX Shell 1. How will you remove all files in current directory? Including the files that are two levels down in a subdirectory. In Unix we have rm command to remove files and sub-directories. With rm command we have –r option that stands for recursive. The –r option can delete all files in a directory recursively. It means if we our current directory structure is as follows: My_dir ->Level_1_dir -> Level_1_dir ->Level_2_dir -> Level_1_dir ->Level_2_dir->a.txt With rm –r * command we can delete the file a.txt as well as subdirectories Level_1_dir and Level_2_dir. Command: rm – r * The asterisk (*) is a wild card character that stands for all the files with any name. 2. What is the difference between the –v and –x options in Bash shell scripts? In a BASH Unix shell we can specify the options –v and –x on top of a script as follows: #!/bin/bash -x –v With –x option BASH shell will echo the commands like for, select, case etc. after subst

Microservices Interview Questions

Microservices Interview Questions 1. What is a Microservice in Java? A Microservice is a small and autonomous piece of code that does one thing very well. It is focused on doing well one specific task in a big system. It is also an autonomous entity that can be designed, developed and deployed independently. Generally, it is implemented as a REST service on HTTP protocol, with technology-agnostic APIs. Ideally, it does not share database with any other service. 2. What are the benefits of Microservices architecture? Microservices provide many benefits. Some of the key benefits are: 1.      Scaling : Since there are multiple Microservices instead of one monolith, it is easier to scale up the service that is being used more. Eg. Let say, you have a Product Lookup service and Product Buy service. The frequency of Product Lookup is much higher than Product Buy service. In this case, you can just scale up the Product Lookup service to run on powerful hardware with multipl

Cloud Computing Interview Questions

Cloud Computing 1. What are the benefits of Cloud Computing? There are ten main benefits of Cloud Computing: Flexibility : The businesses that have fluctuating bandwidth demands need the flexibility of Cloud Computing. If you need high bandwidth, you can scale up your cloud capacity. When you do not need high bandwidth, you can just scale down. There is no need to be tied into an inflexible fixed capacity infrastructure. Disaster Recovery : Cloud Computing provides robust backup and recovery solutions that are hosted in cloud. Due to this there is no need to spend extra resources on homegrown disaster recovery. It also saves time in setting up disaster recovery. Automatic Software Updates : Most of the Cloud providers give automatic software updates. This reduces the extra task of installing new software version and always catching up with the latest software installs. Low Capital Expenditure : In Cloud computing the model is Pay as you Go. This means there is very