Chapter 11 - Deploying Containers - Do I know this Already?

Question 1

What types of containers can you create in Windows Server 2016? Choose two.

a. Windows Server
b. Linux
c. Legacy Windows
d. Hyper-V

Answer 1

a. Windows Server

d. Hyper-V

Question 2

What layer captures all actions after a container has started?

a. Sandbox
b. Service abstraction
c. API layer
d. VM machine layer

Answer 2

a. Sandbox

Question 3

Docker is a requirement for working with which type of container in Windows Server 2016?

a. Windows Server
b. Hyper-V
c. Legacy Windows
d. Linux

Answer 3

a. Windows Server

Question 4

What file includes startup parameter information for Docker?

a. init.ini
b. config.ini
c. daemon.json
d. start.ini

Answer 4

c. daemon.json

Question 5

What do you install before working with containers?

a. Base image
b. Defender
c. Server Core
d. Nano Server

Answer 5

a. Base image

Question 6

What command installs the Nano Server base image?

a. get-nanoserver
b. get-docker-install nanoserver
c. docker pull microsoft/nanoserver
d. docker install nanoserver

Answer 6

c. docker pull microsoft/nanoserver

Question 7

What do you use to manage the Nano Server if it is your container host?

a. PowerShell
b. Computer management
c. Command prompt
d. bash

Answer 7

a. PowerShell

Question 8

What command deploys a container?

a. deploy container
b. install image
c. docker run
d. docker container install

Answer 8

c. docker run

Question 9

What is a Windows Server Container?

Answer 9

A container that achieves isolation through namespace and process isolation.

Question 10

What is a Hyper-V Container?

Answer 10

A container that runs in a special lightweight VM

Question 11

What is Docker?

Answer 11

A well-known application for maintaining containers.

Question 12

Nano Server is ideal for hosting what type of containers?

Answer 12

Hyper-V containers and Windows Server containers

Question 13

How many virtual processors does a container host need?

Answer 13

At least two

Question 14

What container types can Windows Server 2016 Core host?

Answer 14

Server Core/Nano Server

Question 15

What are two options for managing Docker startup parameters?

Answer 15

sc config and a configuration file

Question 16

What is a Container Host?

Answer 16

A container host is a physical or virtual computer system configured with the Windows Container feature, it runs one or more Windows Containers

Question 17

What is a Container image?

Answer 17

The container image shows the state of the virtual container, including such things as registry or file system changes; you can discard a container image or use it as a base image for new containers

Question 18

What is a Sandbox?

Answer 18

After a container has started, all write actions such as file system modifications, registry modifications, or software installations are captured in the sandbox layer.

Question 19

What is a Container OS image?

Answer 19

The container OS image is the first layer of potentially many image layers that make up a container; this image provides the operating system environment and cannot be modified

Question 20

What is the Container Repository?

Answer 20

Each time you create a container image, the container image and its dependencies are stored in a local repository

Question 21

What is Container Management Technology?

Answer 21

You can manage Windows Containers by using Windows Powershell and Docker

Question 22

What are Containers for IT professionals?

Answer 22

IT professionals can use containers to provide standardized environments for their development, QA , and production teams

Question 23

What are containers for developers?

Answer 23

When you containerize an app, only the app and the components needed to run it are combined into an image; you can use containers to start up lightweight and portable app components-or micro services- for distributed apps and quickly scale each service separately

Question 24

What format are the Windows Server and Hyper-V containers found in Windows Server 2016 with Desktop and Core?

Answer 24

The format of these OS type containers is Server Core/Nano Server

Question 25

What format are the Windows Server and Hyper-V containers found in Nano Server?

Answer 25

Windows Server containers are nano server format and Hyper-V containers are Server Core/Nano Server format

Question 26

What format are the Windows Server and Hyper-V containers found in Windows 10 Pro/Enterprise ?

Answer 26

The Windows Server containers are not available and the Hyoer-V containers are Server Core/Nano Server format

Question 27

What are the two main types of containers found in Windows Server 2016?

Answer 27

Windows Server containers and Hyper-V containers are the two main types of these

Question 28

How do Windows Server containers work?

Answer 28

A Windows Server container shares a kernel with the container host and all containers running on the host. Windows Server containers isolate applications on the same container host. Each container has its own view of the host system, including the kernel, processes, file systems, the registry, and other components. They work between the user mode level and the kernel mode level

Question 29

How do Hyper-V containers work?

Answer 29

These containers expand on the isolation given by Windows Server containers by running each container in a highly optimized virtual machine. In this configuration, the kernel of the container host is not shared with the Hyper-V containers. Hyper-V containers are based on a container technology that is rooted in hardware-assisted virtualization. With hardware-assisted virtualization, Hyper-V containers’ applications are provided a highly isolated environment in which to operate, and the host operating system cannot be affected in any way by any running container.

Question 30

What are the installation requirements for Windows Containers?

Answer 30

The Windows container feature is only available on Windows Server 2016 (Core and with Desktop Experience), Nano Server, and Windows 10 Professional and Enterprise (Anniversary Edition or later).

• The Hyper-V role must be installed.
• Windows Server container hosts must have Windows installed to c:, although this restriction does not apply if only Hyper-V containers are deployed.

Question 31

What are the installation requirements of Windows containers if run from a Hyper-V virtual machine?

Answer 31

• Nested Virtualization must be enabled
• At least 4 GB RAM must be available for the virtualized Hyper-V host.
• Windows Server 2016 or Windows 10 must be running on the host system, and Windows Server (Full, Core) or Nano Server must be running on the virtual machine.
• The processor must have Intel VT-x. (Containers are currently available only for Intel processors.)
• The container host VM needs at least two virtual processors

Question 32

How do you install Docker on Windows Server?

Answer 32

Step 1. Launch an elevated PowerShell session by right-clicking the PowerShell shortcut and choosing Run as Administrator.

Step 2. Install the OneGet PowerShell module by using the following syntax and, if prompted to install the NuGet provider, respond with Y:
Install-Module -Name DockerMsftProvider -Repository PSGallery -Force

Step 3. Use OneGet to install the latest version of Docker, using the following syntax and, if prompted that the source is not trusted, respond with Y:
Install-Package -Name docker -ProviderName DockerMsftProvider

Step 4. Following successful installation, reboot your system using the following syntax:
Restart-Computer -Force