**What four things about software do containers simplify?**
The four things about software that containers simplify are:
1. Production.
2. Distribution.
3. Discoverability.
4. Usage.
**What command do you use to search for a container image?**
The command you use to search for a container image is:
```sh
podman search <container registry>/<image name>
```
**What command do you use to run a container image?**
The command you use to search for a container image is:
```sh
podman run -it <container registry>[/username]/<image name>
```
**How do you exit a container image?**
To exit a container image, run:
```sh
exit
```
...
**What are Container Images?**
Container Images are *repositories often made up of multiple layers.*
**What type of file is used to add, save, and share layers of a Container Image?**
The type of file used to add, save, and share layers of a Container Image is *a Containerfile or Dockerfile.*
...