Introduction About Couchbase Couchbase Server is an open-source, distributed, multi-model NoSQL, JSON document database that is enhanced for interactive applications. Its server is designed to provide us with easy-to-scale key-value or JSON document access with high sustained throughput and low latency. Moving to questions and answer 1. What is the Couchbase server? Answer: A Cloudbase…
What Docker technologies are available to support communication between containers? Docker connect and bridge networks Docker linking and bridge networks (Ans) Docker connect and alias networks None of these Bridge networks can be defined in Docker Compose files. False True (Ans) What command can be run to download an image from Docker Hub? docker images…
Which of the following open-source tools is the underlying technology for Docker Swarm? containerd SwarmKit (Ans) Kubernetes InfraKit The Docker daemon Docker UCP implements RBAC via Grants. Which of the following make up a Grant? Subjects, roles, and nodes Subjects, roles, and collections (Ans) Roles and collections Which of the following built-in Docker networks creates…
Which of the following best decribes a Docker Image? A read-write template for starting one or more containers A point-in-time snapshot of a container used for backups A data volume that can be mounted inside of a container A read-only template for starting one or more containers (Ans) You have two services running on a…
Which of the following are true about Docker volumes? They must exist on a SAN or NAS They are decoupled from containers (Ans) They are higher performance than graph driver (snapshotter) storage They are RAID protected Which of the following commands will list all of the Docker volumes on a particular Docker host? docker system…
What is the preferred way to deploy and manage a Docker Stack? The declarative way via config files (Ans) The imperative way via commands Which of the following Docker Engine component is a Cloud Native Computing Foundation (CNCF) project? containerd (Ans) The Docker Remote API runc The daemon Which components constitute the control plane aspects…
Which of the following are top-level keys in a stack file (Compose v3 file)? Version, deployments, networks, volumes Version and services Version, services, networks, volumes (Ans) Services, pods, networks, volumes Which of the following is an advantage of Multi-stage Builds? Multi-platform images Better image documentation Faster image builds Smaller images (Ans) Which of the following…
Which of the following is a recommended best practice? Keep your images small (Ans) Never use the latest image in a repo Use large images containing lots of tools Only use Docker Hub Where are Secrets mounted on Linux-based Docker hosts? An encrypted volume mounted at /run/secrets An in memory (tempfs) volume at /run/secrets (Ans)…
Which of the following is needed to deploy a Docker Stack? Compose v2 file format Kubernetes Compose v3 file format Docker Cloud (Ans) What is the name of the configuration file that describes how to build a new Docker image with your app-code inside? dockerfile (Ans) config.json docker-file dockerfile.json Which of the following is the…
How does “technical debt” make it hard to become a software-driven company? Technical debt is paid off by business units that do not trust IT. Attention paid to existing investments prevents focus on new ones. (Ans) Too much technical debt means that you can’t automate systems. Technical debt cannot be paid off without support from…
Which is the right repository definition should be inserted in pom.xml for uploading snapshot artifactory? Which is the right repository definition should be inserted in pom.xml for uploading release artifactory? Which is the right repository definition should be inserted in pom.xml which holds release and snapshot artifactory? What maven elements should be added in setting.xml…
What is the best way to allow a Docker client running in a container access to the underlying Docker host? Map the root filesystem to the container. You shouldn’t do this; instead, run Docker in Docker. Configure the container to communicate with the Docker Host over a network socket. Map /var/run/docker.sock to the container. (Ans)…
How would you ensure your application is configured correctly for different types of tests? This is not possible. Create multiple configuration files for your application, one per type of test. (Ans) Use multiple machines, one per type of test. Clone multiple copies of your application, one per type of test. Which statement best describes Docker…
You can merge multiple inventory files to scale out. True False (Ans) A __ module may be pulled from repository at a future time. Bronze Core Deprecated (Ans) Extra The location with the highest precedence value (most preferred) for configuration options is: Environment Variable (Ans) It’s the first loaded configuration file. ansible.cfg in current directory…
You work for a gaming company that has built a serverless application on AWS using Lambda, API Gateway and DynamoDB. They release a new version of the lambda function and the application stops working. You need to get the application up and back online as fast as possible. What should you do? Roll your lambda…
Q1. What is GIT? Git is a distributed version control system and source code management (SCM) system with focus to handle small and large projects source code versions in the local repository with speed and efficiency. It is free and open source and its one of widly used versioning tools used ever worldwide. Q2. What…
What are the parts of the task lifecycle? A. Configuration, Execution B. Initialization, Configuration, Execution C. Initialization, Configuration, Execution, Finalization D. Execution Ans: B. Initialization, Configuration, Execution If I want to run a java application which plugin do I use? A. java B. run C. application D. java-runner Ans: C. application What does the wrapper…
Git Interview Questions and Answer Part – 1 Git Interview Questions and Answer Part – 2 Git Interview Questions and Answer Part – 3 Git Interview Questions and Answer Part – 4 Git Interview Questions and Answer Part – 5 Git Interview Questions and Answer Part – 6 Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about…
Some of the perforce commands which is not commonly used but useful. p4 annotate – Print file lines along with their revisions. e.g p4 annotate file.c How to ignore files/folder in perforce workspace/client? Assuming you have a client named “CLIENT”, a directory named “foo” (located at your project root), and you wish to ignore all…
I get many emails and linkedin personal message about sharing interview questions for Build & Release Engineer and Configuration Engineer. I have asked some of my friends to share too and now here is the consolidated list of interview questions which is very much commonly asked in interview. if you like it, please share with…
What is Perl one-liner?
There are two ways a Perl script can be run:
a)from a command line, called one-liner, that means you type and execute immediately on the command line. You’ll need the -e option to start like “perl -e “print “Hello”;”. One-liner doesn’t mean one Perl statement. One-liner may contain many statements in one line.
b)from a script file, called Perl program.
Apache Interview Questions – Apache Job Interview Kit On a fresh install, why does Apache have three config files – srm.conf, access.conf and httpd.conf? – The first two are remnants from the NCSA times, and generally you should be ok if you delete the first two, and stick with httpd.conf. What’s the command to stop…
Maven Interview Questions and Answers Contributed by Rajesh Kumar with the help of Google Search and www.scmGalaxy.com Is there a way to use the current date in the POM? Take a look at the buildnumber plugin. It can be used to generate a build date each time I do a build, as follows: <plugin> <groupId>org.codehaus.mojo</groupId>…
Interview Questions Sets : Shell Programming How do you find out what’s your shell? Answer: echo $SHELL What’s the command to find out today’s date? Answer: date What’s the command to find out users on the system? Answer: who How do you find out the current directory you’re in? Answer: pwd How do you remove…