When executing command from command line interface CLI :

>show interfaces terse

interfaces will not show right away in the output , only once the transceiver is connected those will appear and show properly listed.

for example

et-0/0/0 is disconnected and SFP is not connected yet output shows as next ,

gr-0/0/0               up   up

pfe-0/0/0              up   up

pfe-0/0/0.16383        up   up  inet

                                  inet6

pfh-0/0/0              up   up

pfh-0/0/0.16383        up   up  inet

pfh-0/0/0.16384        up   up  inet

bme0                   up   up

bme0.0                 up   up  inet    

cbp0                   up   up

dsc                    up   up

em0                    up   up

em0.0                  up   up  inet   

em1                    up   down

em2                    up   up

em2.32768              up   up  inet    

em3                    up   up

esi                    up   up

fti0                   up   up

gre                    up   up

ipip                   up   up

irb                    up   up

irb.0                  up   up  inet    

jsrv                   up   up

jsrv.1                 up   up  inet    

lo0                    up   up

lo0.10                 up   up  inet    

lo0.16385              up   up  inet

lsi                    up   up

mtun                   up   up

pimd                   up   up

pime                   up   up

pip0                   up   up

tap                    up   up

vme                    up   down

vtep                   up   up

when connecting  a 10g port SFP in port 0 of physical interface card 0 for fpc0 and port will show in interfaces terse

et-0/0/0               up   up

et-0/0/0.0             up   up  eth-switch

Please make sure QSFP or SFP is connected and transceiver shows in chassis hardware output (show chassis hardware )

Once this shows present , it should also appear in (show interfaces terse )

This is normal and expected behavior.