A RHEL 9 server uses NetworkManager. The administrator needs to configure a static IP address and a default gateway for the `ens3` interface. The configuration must be persistent and applied immediately. Which command sequence accomplishes this?

`ip addr add 192.168.1.10/24 dev ens3 && ip route add default via 192.168.1.1`

`echo -e 'IPADDR=192.168.1.10\nGATEWAY=192.168.1.1' > /etc/sysconfig/network-scripts/ifcfg-ens3`

`hostnamectl set-hostname --static 192.168.1.10`

`nmcli con mod ens3 ipv4.method manual ipv4.addresses 192.168.1.10/24 ipv4.gateway 192.168.1.1 && nmcli con up ens3`

A user reports intermittent connectivity to a remote server. The administrator runs `ping` and sees occasional packet loss. To identify the network segment causing the issue, which command should the administrator use?

`ip addr show` to verify the IP address

`traceroute` to the remote server

`netstat -r` to view the routing table

`hostname` to check the system name

An administrator needs to set the hostname of a RHEL 9 server to `web01.example.com`. The change must survive a reboot. Which command accomplishes this?

`hostnamectl set-hostname web01.example.com`

`echo web01.example.com > /etc/hostname`

`sysctl kernel.hostname=web01.example.com`

An administrator needs to set the FQDN of a server to `db01.internal.example.com`. The short hostname should be `db01`. Which command sets both correctly?

`hostnamectl set-hostname db01.internal.example.com`

`sysctl kernel.hostname=db01.internal.example.com`

`echo db01.internal.example.com > /etc/hostname`

A server has a single interface `eth0` with IP 192.168.1.10/24. The administrator needs to add a second IP address 192.168.1.11/24 to the same interface for a legacy application. After adding the address with `ip addr add 192.168.1.11/24 dev eth0`, the application still cannot bind to 192.168.1.11. What is the most likely reason?

The routing table does not have a route for the new address.

The new address is not in the same subnet, so it cannot be used.

The application is configured to bind to a specific IP address that is not 192.168.1.11.

The interface needs to be restarted for the new address to take effect.

LPI LPIC-2:Linux Engineer (201-450)

Domain 6Objective 1

205.1 Basic Networking Configuration (weight: 3) LPIC-2 Practice Questions (Page 4)

Part of the Topic 205: Networking Configuration domain, which makes up ~10% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–2 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

7concepts

Questions 16–20

16expert · medium
A RHEL 9 server uses NetworkManager. The administrator needs to configure a static IP address and a default gateway for the `ens3` interface. The configuration must be persistent and applied immediately. Which command sequence accomplishes this?
Select an answer first
17application · easy
A user reports intermittent connectivity to a remote server. The administrator runs `ping` and sees occasional packet loss. To identify the network segment causing the issue, which command should the administrator use?
Select an answer first
18application · easy
An administrator needs to set the hostname of a RHEL 9 server to `web01.example.com`. The change must survive a reboot. Which command accomplishes this?
Select an answer first
19application · easy
An administrator needs to set the FQDN of a server to `db01.internal.example.com`. The short hostname should be `db01`. Which command sets both correctly?
Select an answer first
20expert · hard
A server has a single interface `eth0` with IP 192.168.1.10/24. The administrator needs to add a second IP address 192.168.1.11/24 to the same interface for a legacy application. After adding the address with `ip addr add 192.168.1.11/24 dev eth0`, the application still cannot bind to 192.168.1.11. What is the most likely reason?
Select an answer first

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