```bash
# Install repository-management tools
sudo dnf install -y dnf-plugins-core

# Add the official HashiCorp RHEL repository
sudo dnf config-manager --add-repo https://rpm.releases.hashicorp.com/RHEL/hashicorp.repo

# Install Vault Enterprise
sudo dnf install -y vault
```

You can verify that the repository was added:

```bash
dnf repolist | grep -i hashicorp
```

And verify Vault:

```bash
vault version
```

So the screenshot effectively becomes:

```text
yum install              → dnf install
yum-config-manager       → dnf config-manager
yum -y install ...       → dnf install -y ...
```