In Docker, a _______ defines the environment in which a container runs, including base image, dependencies, and commands to run.
- Blueprint
- Configuration
- Dockerfile
- Manifest
In Docker, a Dockerfile defines the environment in which a container runs. It specifies the base image, dependencies, and commands needed to create the container.
In NoSQL databases, what does "CAP theorem" stand for, and what does it imply?
- CAP stands for Capacity, Availability, Performance
- CAP stands for Concurrency, Atomicity, Persistence
- CAP stands for Configuration, Authentication, Portability
- CAP stands for Consistency, Availability, Partition Tolerance
The CAP theorem in NoSQL databases stands for Consistency, Availability, and Partition Tolerance. It implies that in the presence of a network partition, a distributed system must choose between consistency and availability.
TDD encourages developers to write _______ tests to cover different aspects of the software.
- Acceptance
- Integration
- System
- Unit
TDD encourages developers to write Integration tests to cover different aspects of the software. Integration tests ensure that different components or modules work together as expected when integrated into a complete system.
The command "git pull" is equivalent to "git fetch" followed by _______.
- git branch
- git commit
- git merge
- git push
The command "git pull" is equivalent to "git fetch" followed by git merge. This combination fetches changes from the remote repository and merges them into the current branch. It helps in keeping your local branch up-to-date with the remote branch.
What is the main difference between Docker and Kubernetes?
- Docker is a containerization platform, while Kubernetes is a container orchestration platform.
- Docker is only for development purposes, while Kubernetes is for production environments.
- Docker is open-source, while Kubernetes is proprietary.
- Docker manages individual containers, while Kubernetes manages clusters of containers.
The main difference between Docker and Kubernetes lies in their functionalities. Docker is primarily a containerization platform, used to package and run applications in isolated environments called containers. On the other hand, Kubernetes is a container orchestration platform that automates the deployment, scaling, and management of containerized applications. While Docker manages individual containers, Kubernetes manages clusters of containers, offering features like load balancing, auto-scaling, and self-healing.
In the "Elements" tab of Browser Developer Tools, what does the "Computed" panel display?
- Computed styles for the selected element
- Server-side computed values
- Styles applied by user scripts
- Upcoming changes to the DOM
The "Computed" panel in the "Elements" tab of Browser Developer Tools displays the computed styles for the selected HTML element. It shows the final styles applied, considering all CSS rules and inheritance.
Which of the following is a JavaScript framework for building user interfaces, developed by Facebook?
- Angular
- Ember.js
- React
- Vue.js
React is a JavaScript framework developed by Facebook for building user interfaces. It is widely used for creating interactive and dynamic UI components in web applications.
The HTML tag with type="checkbox" creates a _______.
- Checkbox
- Radio Button
- Text Field
- Dropdown Menu
The HTML tag with type="checkbox" creates a checkbox input element. Checkboxes allow users to select multiple options from a list.
What does the "Red-Green-Refactor" cycle represent in TDD?
- A color-coded status for the code in TDD, indicating its progress.
- A visual representation of code quality.
- The cycle of writing failing tests (Red), making them pass (Green), and then improving the code without changing its behavior (Refactor).
- The stages a developer goes through when debugging code.
The "Red-Green-Refactor" cycle is fundamental to Test-Driven Development (TDD). It involves writing failing tests (Red), making them pass (Green), and then improving the code without changing its behavior (Refactor). This iterative process ensures code reliability and maintainability.
Which key combination is commonly used to open Browser Developer Tools in most browsers?
- Alt + D
- Ctrl + B
- Ctrl + Shift + I
- F12
In most browsers, the common key combination to open Browser Developer Tools is Ctrl + Shift + I. This shortcut allows developers to quickly access the tools for debugging and inspecting web pages.