A newly installed desktop is unable to connect to networked resources. The systems administrator executes various commands and reviews the following output snippets: Which of the following should…

`arp -s` adds a static ARP entry, which is rarely needed for basic connectivity and addresses a different problem (ARP resolution) than a down interface.

`route add -net` adds a static route, which is typically for more complex routing issues, not for a basic inability to connect to any networked resources due to a primary interface being down.

`dig -x @127.0.0.1 192.168.1.10` attempts a reverse DNS lookup using the local DNS resolver, which is relevant for DNS resolution issues, not for a fundamental inability to connect at the link or IP layer.

The command `ip link set wlo1 up` is used to bring the specified network interface (`wlo1` often being a wireless interface) administratively 'up'. If a network interface is down, it cannot send or receive network traffic, making it impossible to connect to networked resources, so bringing it up is a fundamental first step to restore connectivity.

`killall -HUP NetworkManager` restarts the NetworkManager service, which might fix some configuration issues, but it is often tried after checking fundamental interface status.