Answer: False
Explanation: The focus in this question is on the backup. The virus is just used to describe loss of data. The important things to note are the days of the virus attack and the last backup. If it is to be assumed that this company functions every generally accepted working day (Monday to Friday) to say the least, that would mean that all the company data from Monday to Thursday would be lost. The purpose of a backup is most importantly for situations such as the aforementioned virus attack. If the company is unable to recover the latest possible data before the attack, then the backup process is NOT adequate. A more more adequate backup process would be a daily backup process at the end of work hours if the backup process is a rigorous one that could impede work, or even an hourly light backup that runs as a background process while work continues. That way, much data won't be lost.