Interface of Python with SQL Database (1 Mark Questions)

1. Which function is used to check the successful connection:
• connect()
• execute()
• is_connect()
• fetchall()
2. Mention one difference between fetchone() and fetchall() method.
3. is_connected() is the MYSQL function to :
• establish a connection to a mysql database from python.
• verify whether the python application is connected to mysql database.
• traverse through records in mysql database.
• None of the above
4.