Answer / amit kumar sharma

Logshipping: Database are restored using the transition log
maintained by the db. If db dosen't maintained the
transition log then you will not able to restore the db.
Set Maintain Transition log of db to 'true' in db
environment variable.

Mirroring : Its just a spanshort of the actual database at
some schedule interval. or rather say just a copy of LDF
and MDF file taken at a particular time.

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