1) What is iOS Swift? Answer: Swift is a compiled and new programming language evolved by Apple Inc in June 2014 in order to develop apps for mobile and desktop. This language works for watchOS, macOS, iOS, and tvOS. Apple created Swift language to work with both Cocoa Touch and Cocoa. Swift supports multiple operating…
About Logstash: Logstash is a lightweight, open-source, server-side data processing pipeline that allows you to collect data from a variety of sources, transform it on the fly, and send it to your desired destination. It is most often used as a data pipeline for Elasticsearch, an open-source analytics and search engine. Moving to the question…
Here is a quick intro to Automated machine learning Automated machine learning, also referred to as automated ML or AutoML, is the process of automating the time-consuming, iterative tasks of machine learning model development. It allows data scientists, analysts, and developers to build ML models with high scale, efficiency, and productivity all while sustaining model…
1) What is Ruby programming language? Ruby is a dynamic, reflective, open source programming language that aims on simplicity and productivity.Ruby has a blended functions of Perl, small talk, Eiffel, Ada and Lisp. Ruby was designed to developed a new language which makes a stability with the functionality of Imperative languages. 2) Who is the…
Here is a quick Introduction to Redis Redis is an open-source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. Redis provides data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes, and streams. Redis has built-in replication, Lua scripting, LRU eviction, transactions,…
Introduction NumPy is the fundamental package for scientific computing in Python.NumPy arrays facilitate advanced mathematical and other types of operations on large numbers of data. Typically, such operations are executed more efficiently and with less code than is possible using Python’s built-in sequences. It is a Python library that provides a multidimensional array object, various…
Bash Scripting is a powerful a part of system administration and development used at an extreme level. It’s utilized by the System directors, Network Engineers, Developers, Scientists, and everybody UN agency use Linux/Unix package. They use Bash for system administration, knowledge crunching, net application preparation, automatic backups, making custom scripts for numerous pages, etc. Script:…
Q1. What is Chef?Begin this answer by defining Chef. It is a powerful automation platform that provides a way to transforms infrastructure into code. Chef is a tool for which you write scripts that are used to automate processes. Q2. What is a Resource in Chef?My suggestion is to first define Resource. A Resource represents…
1) Explain what AWS is?AWS stands for Amazon Web Service; it is a collection of remote computing services also known as a cloud computing platform. This new realm of cloud computing is also known as IaaS or Infrastructure as a Service. 2) Mention what the key components of AWS are?The key components of AWS are…
Here we will cover the basic, intermediate and advance level interview questions for java. Also we will cover the question related to java script. Java Basic interview questions:- 1. What is Java? Java is a general-purpose programming language that is class-based, object-oriented and is very popular. It’s one of the most popular programming languages in…
Python Basic Interview Questions:- 1. What are the key features of Python? Python is one of the most popular programming languages used by data scientists and AIML professionals. This popularity is due to the following key features of Python: Python is easy to learn due to its clear syntax and readability Python is easy to…
Which argument would you use in a Python function to obtain a dictionary of all the named arguments passed? Keyword Arguments (**kwargs) (Ans) *args The NoneType argument Regular function arguments To create a virtual environment, you use the following command: virtualenv-create virtualenvironment virtualenv (Ans) virtual-env A nested function can access its parent’s function variable and…
1- What is Laravel Framework? Laravel is a free, open-source PHP web framework, created by Taylor Otwell and intended for the development of web applications following the model–view–controller (MVC) architectural pattern. 2- What are the main differences between Laravel 4 and Laravel 5.x? Summarizing Laravel 5.0 Release notes from the above article: 1. The old app/models…
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 add groups inside of groups when: You add existing group names under a [groupname:children] definition (Ans) You cannot add groups within groups. You add existing group names under a [groupname] definition Which statement describes the best approach to integration testing across system boundaries? Create a single Docker container, run both systems inside the…
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…
Of the following, which is the best description of Splunk? Splunk is a log collector. Splunk is a business intelligence tool. Splunk is operational intelligence that consumes and makes machine data useable and valuable. (Ans) Splunk is an alerting tool. What are the building blocks of a Splunk App? Configuration files (Ans) Data sources Reports…
Is it right definition of Sonarqube? SonarQube (formerly Sonar) is a quality management platform focusing on continuous analysis of source code quality. YES (Ans) NO Which is not a severities in this list Blocker Critical Major Biggest (Ans) Is it right defintion of SonarQube Scanners? The SonarQube Scanner is recommended as the default launcher to…
Where is the Puppet configuration file stored? /etc/puppet/puppet.conf (Ans) /var/lib/puppet/puppet.conf /usr/share/puppet/puppetmaster.conf Puppet can manage all of following operating systems except… Mac OS X Windows Unix Solaris FreeBSD None of these. Puppet can manage all of them. (Ans) Which is true about resource parameters/attributes? They are variable declarations They are attribute/value pairs separated by a colon…