Question: Read this and answer the question

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.

What parameter is requiret to restore a database?
Answer: desired point in time
Question: Read this and answer the question

The Eagle and Child and the Lamb and Flag, Oxford, were regular meeting places of the Inklings, a writers' group which included J. R. R. Tolkien and C. S. Lewis. The Eagle in Cambridge is where Francis Crick interrupted patrons' lunchtime on 28 February 1953 to announce that he and James Watson had "discovered the secret of life" after they had come up with their proposal for the structure of DNA. The anecdote is related in Watson's book The Double Helix. and commemorated with a blue plaque on the outside wall.

Along with the Eagle and Child, at what pub did the Inklings regularly meet?
Answer: the Lamb and Flag
Question: Read this and answer the question

Philadelphia is home to many national historical sites that relate to the founding of the United States. Independence National Historical Park is the center of these historical landmarks being one of the country's 22 UNESCO World Heritage Sites. Independence Hall, where the Declaration of Independence was signed, and the Liberty Bell are the city's most famous attractions. Other historic sites include homes for Edgar Allan Poe, Betsy Ross, and Thaddeus Kosciuszko, early government buildings like the First and Second Banks of the United States, Fort Mifflin, and the Gloria Dei (Old Swedes') Church. Philadelphia alone has 67 National Historic Landmarks, the third most of any city in the country.

What famous writer has a house in Philadelphia?
Answer:
Edgar Allan Poe