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Dockerfile is a text file that contains instructions to build a Docker image.
Dockerfile is used to define the environment and configuration of a Docker container.
It includes commands to install dependencies, copy files, set environment variables, and more.
Each instruction in a Dockerfile creates a new layer in the image.
Dockerfile is typically named 'Dockerfile' with no file extension.
Example: 'FROM', 'RUN', 'COPY', 'C
The exec command is used in Unix and Unix-like operating systems to replace the current process with a new process.
Exec command is used to execute a new program in place of the current process.
It is commonly used in shell scripts to run a different program without creating a new process.
Exec command is often used in system administration tasks to start services or daemons.
It can be used to switch the current shell to a...
Docker build image command is used to build a Docker image from a Dockerfile.
Use the 'docker build' command followed by the path to the directory containing the Dockerfile
You can specify a tag for the image using the '-t' flag
Example: docker build -t myimage:latest .
I applied via Campus Placement and was interviewed in May 2022. There were 3 interview rounds.
Reasoning, mathathematical problem
Some servey types of questions
Program to generate Fibonacci series.
Declare two variables to store the first two numbers of the series
Use a loop to generate subsequent numbers by adding the previous two
Print the series or store it in an array
Top trending discussions
Continuous integration and delivery in DevOps can be ensured through automation, collaboration, and monitoring.
Automate the build, test, and deployment processes to ensure code changes are integrated and delivered quickly and consistently.
Use version control systems to track changes and enable collaboration among team members.
Implement continuous integration tools like Jenkins, Travis CI, or GitLab CI to automatically ...
posted on 12 Sep 2023
I applied via Naukri.com and was interviewed before Sep 2022. There were 3 interview rounds.
Advanced JS, PHP related questions
posted on 24 Oct 2024
posted on 24 Jun 2024
I applied via Campus Placement
45 questions were asked
3 questions were asked one from SQL and 2 from java
posted on 22 Jul 2024
20 General MCQs were asked
Group discussion on any topic
posted on 22 Nov 2024
Encapsulation, Inheritance, Polymorphism, Abstraction are the four pillars of OOPS in Java.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Inheritance: Allows a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the implementation details and showing only the necessary features.
A constructor in Java is a special type of method that is used to initialize objects.
Constructors have the same name as the class they are in.
They do not have a return type, not even void.
Constructors are called when an object of a class is created.
Example: public class Car { public Car() { // constructor code } }
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