Question

Big Data has enabled smooth functioning of these agencies and institutions (change the voice)​

Answer 1

Smooth functioning of these agencies and institutions have been enabled by Big Data.

• The given sentence is an affirmative sentence of the present perfect tense (Because 'has' is used with the third form of the verb.)
• The rule to change the present perfect tense into passive voice is 'object + has/have + been + the third form of the verb + by + subject + other words'.
• In this case, the object is 'smooth functioning of these agencies and institutions', the verb is 'enabled', and the subject is 'Big Data'.