. Match the following terms to the appropriate definitions:

extent hashing algorithm rollback index checkpoint facility physical record pointer data type physical file database recovery

a. a detailed coding scheme for representing organizational data

b. a data structure used to determine in a file the location of a record/

records

c. mechanism for restoring a database after loss

d. a named area of secondary memory

e. a contiguous section of disk storage space

f. mechanism for ensuring periodical synchronization of logs g. a field not containing business data h. converts a key value into an address i. adjacent fields j. undoing unwanted changes to the database