Whenever I reset these Juniper SRX firewall to its "factory-defaults", they are always pre-configured with specific settings which is explained in the below factory default for a Juniper SRX220 firewall.
# Specific DNS servers
set system name-server 208.67.222.222
set system name-server 208.67.220.220
# VLAN 0 configured with web management enabled
set system services web-management http interface vlan.0
set system services web-management https system-generated-certificate
set system services web-management https interface vlan.0
# DHCP service enable for 19.168.1.0/24
set system services dhcp router 192.168.1.1
set system services dhcp pool 192.168.1.0/24 address-range low 192.168.1.2
set system services dhcp pool 192.168.1.0/24 address-range high 192.168.1.254
set system services dhcp propagate-settings ge-0/0/0.0
# Untrust Zone enabled, default IDS protection and mapped to the first interface
set security zones security-zone untrust interfaces ge-0/0/0.0 ...
set security zones security-zone untrust screen untrust-screen
set security screen ids-option untrust-screen ...