You are installing two hard disk drives on a computer. Which of the following possible combinations
can be used? Each correct answer represents a complete solution. Choose all that apply.

A.
Install the second hard disk drive on the primary IDE controller. Designate one drive as Master
and the other as Slave.

B.
Install the second hard disk drive on the secondary IDE controller ensuring that the first hard disk
drive is on primary IDE controller. Designate both drives as Master.

C.
Install the second hard disk drive on the secondary IDE controller ensuring that the first hard disk
drive is on the primary controller. Designate the second hard disk drive as Slave.

D.
Install both the hard disk drives on the primary IDE controller. Designate both drives as
Secondary.

Explanation:

While installing two hard disk drives on a computer, any one of the following two combinations can
be used.
1. Install the drives, one each on the primary and secondary IDE controllers and designate both as
Master.
2. Install both drives on the primary IDE controller and designate one as Master and the other as
Slave.
What are the jumper settings on IDE/EIDE drives?
Each IDE/EIDE drive must support the Master, Slave, and Cable Select types of jumper settings. The
Master/Slave setting is accomplished by jumpering a set of pins on the hard disk/CD-ROM drive.
If two drives are attached to one controller, one drive should be set as Master and the other as
Slave. If both drives using the same controller are set as Master, or Slave, none of them will work.
Answer option D is incorrect. There is no setting such as Secondary.