Docker for the Absolute Beginner - Hands-On - Docker Storage - Demo

Docker for the Absolute Beginner - Hands-On - Docker Storage - Demo

Assessment

Interactive Video

•

Information Technology (IT), Architecture

•

University

•

Practice Problem

•

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explores how Docker stores data, focusing on the default folder structure and the role of storage drivers in managing layers. It demonstrates how to build a Docker image from a Python Flask application, highlighting the caching mechanism that optimizes build times by reusing layers. The tutorial also covers how to analyze disk usage using Docker commands, providing insights into actual storage consumption versus reported image sizes.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the default directory where Docker stores its data?

/usr/local/docker

/opt/docker

/var/lib/docker

/etc/docker

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which storage driver is the default for Debian and Ubuntu systems?

aufs

btrfs

overlay2

zfs

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the AUFS storage driver, where are the actual contents of each layer stored?

diff folder

root folder

layers folder

mount folder

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What command can you use to see the steps followed to create a Docker image?

docker inspect

docker build

docker history

docker logs

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in creating a Docker image from a Python Flask application?

Install Python packages

Copy source code

Specify entry point

Create image from Ubuntu

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why did the second Docker build of the Flask app complete quickly?

The network speed was faster

Fewer dependencies were installed

The image was already built and cached

The Dockerfile was optimized

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when a step in a Dockerfile changes?

No steps are rebuilt

Subsequent steps are rebuilt

All steps are rebuilt from scratch

Only the changed step is rebuilt

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