RHCSA RHCSA Firewalld and Network Configuration 4

Question 1

Which command sets the default firewalld zone to 'home'?

Accepted Answer

firewall-cmd --set-default-zone=home

Answer

--set-default-zone changes the system-wide default zone immediately without requiring --reload.

Question 2

On RHEL 9, which tool is the primary recommended method for managing network connections?

Accepted Answer

NetworkManager via nmcli or nmtui

Answer

NetworkManager is the default and recommended network management service on RHEL 9; nmcli and nmtui are its CLI and TUI frontends.

Question 3

A rich rule must block all traffic from IP 203.0.113.5. Which command achieves this?

Accepted Answer

firewall-cmd --add-rich-rule='rule family=ipv4 source address=203.0.113.5 drop' --permanent

Answer

A rich rule with 'drop' silently discards all packets from the specified source address.

Question 4

What does the 'ip route show' command display?

Accepted Answer

The kernel routing table

Answer

'ip route show' displays the kernel's IP routing table including default gateway and static routes.

Question 5

Which nmcli command creates a new Ethernet connection named 'corp' with static IP 10.1.1.10/24 and gateway 10.1.1.1?

Accepted Answer

nmcli con add type ethernet ifname eth1 con-name corp ip4 10.1.1.10/24 gw4 10.1.1.1

Answer

nmcli con add with 'type ethernet', 'ifname', 'con-name', 'ip4', and 'gw4' creates a fully configured static connection.

RHCSA Exam Practice Test