SOLVED: A developer is using type system in GraphQL, and he requires a field which shoul ...

A developer is using type system in GraphQL, and he requires a field which should never be null. What is the possibility to ensure that a field never goes null?

Possible with keyword null next to the field

Possible by adding an exclamation mark(!) after the field declaration

Possible with a leading exclamation mark(!) on the field

Possible with declaring it as scalar type Id

Verified Answer

Correct Option - b

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