diff --git a/src/rhcsa.md b/src/rhcsa.md
index c4d051a..ce7aeb9 100644
--- a/src/rhcsa.md
+++ b/src/rhcsa.md
@@ -700,3 +700,18 @@ sudo nano /etc/yum.repos.d/rhel.repo
 # Add the following line to the rhel.repo file:
 gpgcheck=0
 ```
+
+### dnf groups
+```bash
+sudo dnf group list # List all groups
+sudo dnf group list --hidden # List all hidden groups
+
+sudo dnf group install "Development Tools" # Install the Development Tools group
+sudo dnf group install --with-optional "Development Tools" # Install the Development Tools group with optional packages
+sudo dnf group info "Development Tools" # Display information about the Development Tools group
+sudo dnf group remove "Development Tools" # Remove the Development Tools group
+
+sudo dnf history # Display the history of the packages
+sudo dnf history undo 1 # Undo the last package installation
+sudo less /var/log/dnf.rpm.log # Display the dnf log
+```
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