RADAR instructs aircraft X-BC: `X-BC squawk standby `. What does this mean?

Question

PPL(A) - Licenza Pilota Privato (Aerei) - Comunicazioni in inglese - RADAR instructs aircraft X-BC: `X-BC squawk standby `. What does this mean?

QuizVDS · Accepted Answer

X-BC is requested to switch to standby position

QuizVDS · Answer

X-BC is requested to standby on the frequency

QuizVDS · Answer

X-BC is requested to standby for radar vectors

QuizVDS · Answer

X-BC is requested to standby as the radar controller is busy

ppl(A): RADAR instructs aircraft X-BC: `X-BC squawk standby `. What does this mean?