There are “record-once” versions of the compact disk and digital video disk, which can be written only once; such disks are also called                      disks.

Related MCQs

•                              partitions data and parity among all N+1 disks, instead of storing data in N-disks and parity in one disk.
• With multiple disks, we can improve the transfer rate as well by                        data across multiple disks.
• Optical disk                systems contain a few drives and numerous disks that can be loaded into one of the drives automatically (by a robot arm) on demand.
• The relation EMPDT1 is defined with attributes empcode(unique), name, street, city, state, and pincode. For any pincode, there is only one city and state. Also, for any given street, city and state, there is just one pincode. In normalization terms EMPDT1 is a relation in
• Empdt1(empcode, name, street, city, state, pincode). For any pincode, there is only one city and state. Also, for given street, city and state, there is just one pincode. In normalization terms, empdt1 is a relation in
• Once the lower-level lock is released, the operation cannot be undone by using the old values of updated data items, and must instead be undone by executing a compensating operation; such an operation is called
• Which of the following is NOT a basic element of all versions of the E-R model?
• Hybrid disk drives are hard-disk systems that combine magnetic storage with a smaller amount of flash memory, which is used as a cache for frequently accessed data.
• Each of a pair of transactions has read data that is written by the other, but there is no data written by both transactions, is referred to as
• A                      is the smallest unit of information that can be read from or written to the disk.