Question

X-API-Version: 2 is _____ type of versioning.
Media type
Parameter
Domain
Custom Header

Answer 1

X-API-Version: 2 is _____ type of versioning.
Media type
Parameter✔️✔️
Domain
Custom Header

Answer 2

It is a media type versioning.

Media type of versioning provides the ability of using URL which can be the same for multiple versions at a the same time.

This must be done by specifying a part of version, say ACCEPT which is another media type.

So X-API-version is clearly as media type of versioning. It can be versioned in two different ways.