Use a protocol to make sure that the system never enters in to the deadlock state.

Allow the system to enter a deadlock state and then recover.

Ignore the problem, and pretend that deadlocks never occur in the system. The UNIX operating system uses this solution.

all of these

deadlock can never occur

deadlock may occur

deadlock has to occur

none of these

relative organization

key fielding

dynamic reallocation

all of these

sequential file

ISAM file

variable depending upon the usage of the dataset

a partitioned data set

tree structure

one level structure

two level structure

none of these