【简答题】Which of the following statements about primary data and secondary data is/are true?A. Primary data are collected by the researcher; secondary data are derived from primary data. B. Secondary data are...
【单选题】Which of the following is a distinguishing factor between data archiving and data backups?()
A.
Data archives are kept for disaster recovery purposes while data backups are kept for indefiniteperiods of time so that there is an information record.
B.
Data archives are kept for documentation purposes to easily recover data while data backupsare kept for immediate server recovery.
C.
Data archives are kept off-site for data warehousing purposes while data backups are keptlocally for immediate server recovery purposes.
D.
Data archives are kept for indefinite periods of time so there is a record while data backups arekept for disaster recovery purposes.