One of the mirrored disks for the root volume group has failed. Although the logical volumes are mirrored, and the bosboot command was run, the machine will not boot. What is the most probable cause?（） A: Quorum was not turned off B: Paging space was not mirrored C: The dump space was not mirrored D: The surviving disk was too small

When scaling Coherence from one to two cache servers， it will not show the same scalability as two to four. Why？（） A:  Coherence uses a more efficient TCMP algorithm going from two to four cache servers B:  When going from one to two cache servers， object backups are copied across servers so work is doubled，but going from two to four is a fixed amount of work C:  Near cache is enabled with a larger quorum thus performance is improved D:  all of the above

When scaling Coherence from one to two cache servers， it will not show the same scalability as two to four. Why？（） A: A Coherence uses a more efficient TCMP algorithm going from two to four cache servers B: B When going from one to two cache servers， object backups are copied across servers so work is doubled，but going from two to four is a fixed amount of work C: C Near cache is enabled with a larger quorum thus performance is improved D: D all of the above