Bank account reconciliation

Bank account reconciliation -definition of bank reconciliation ? *what does it mean? *how often does it happen? *why does it happen? 2-how does it happen? 3-types of mismatches *at least 5 types with examples and the corrections 4-correction examples 5-5 examples atleast for the corrections 6-conclusion *what did you learn? *what can you conclude? *why do they do the bank account reconciliation?