In which three situations does DB time always increase? (Choose three.)
A.
when the host is CPU bound for foreground processes
B.
when I/O wait time increases for foreground processes
C.
when more connections are made to a database instance
D.
when CPU consumption by background processes increases
E.
when wait time for data to be sent over a network increases
Explanation:
http://www.oracle.com/technetwork/oem/db-mgmt/s317294-db-perf-tuning-with-db-time-181631.pdf
(page 21)