63. Which of the following can only have sequential access?
Verified Answer
A. Disk
B. Tape
C. CD-ROM
D. DVD-ROM
E. None of these
Explanation:
Magnetic 'Tape' is a sequential access medium; data must be read in order. Disks (hard, floppy, CD-ROM, DVD-ROM) are random access, allowing direct access to any data location. Thus, only tape has sequential access.