Sometimes it is desired to bring a database back to a previous state (for many reasons, e.g., cases when the database is found corrupted due to a software error, or if it has been updated with erroneous data). To achieve this a backup operation is done occasionally or continuously, where each desired database state (i.e., the values of its data and their embedding in database's data structures) is kept within dedicated backup files (many techniques exist to do this effectively). When this state is needed, i.e., when it is decided by a database administrator to bring the database back to this state (e.g., by specifying this state by a desired point in time when the database was in this state), these files are utilized to restore that state.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who can restore a database that has been deleted?
Ah, so.. unanswerable

The major time divisions of classical music up to 1900 are the early music period, which includes Medieval (5001400) and Renaissance (14001600) eras, and the Common practice period, which includes the Baroque (16001750), Classical (17501830) and Romantic (18041910) eras. Since 1900, classical periods have been reckoned more by calendar century than by particular stylistic movements that have become fragmented and difficult to define. The 20th century calendar period (19012000) includes most of the early modern musical era (18901930), the entire high modern (mid 20th-century), and the first 25 years of the contemporary or postmodern musical era (1975current). The 21st century has so far been characterized by a continuation of the contemporary/postmodern musical era.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What era has the 21st century has been characterized by?
Ah, so.. the contemporary/postmodern musical era

The East India Company's arms, granted in 1698, were: "Argent a cross Gules; in the dexter chief quarter an escutcheon of the arms of France and England quarterly, the shield ornamentally and regally crowned Or." The crest was: "A lion rampant guardant Or holding between the forepaws a regal crown proper." The supporters were: "Two lions rampant guardant Or, each supporting a banner erect Argent, charged with a cross Gules." The motto was AUSPICIO REGIS ET SENATUS ANGLI (Latin: By right of the King and the Senate of England).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): how many lions were on the EIC arms
Ah, so..
Two