DR writtable secondary

For log shipping you can use a standby for querying, right?

For mirroring the same?

And for replication?

Any of the above support changing the data on the secondary, mirror, subscriber? If data is changed, then for log shipping I'd have to restart from the full backup and apply all subsequent log backups. For Mirroring the same and for replication reinitialize subscription?

I know this question makes no sense since you'd want to have a DR as a truly DR standby copy of the prod database but appreciate inputs to the question.

Paula