ITPEC IP October 2023 Question 11
ITPEC IP October 2023 — Question 11 of 100
Mirroring writes identical data to two or more disks so data remains available if one disk fails. RAID 1 is the common implementation: every write is duplicated, trading additional storage capacity for redundancy and reliability. It is primarily a fault-tolerance method, although read performance may sometimes improve.
Answer (d)
Why not others:
- (a) Striping divides data across disks, mainly improving throughput without providing redundancy by itself
- (b) Paging transfers fixed-size memory pages between main memory and secondary storage
- (c) Interleaving distributes successive accesses among memory banks or storage units to improve access performance
Key rule: Mirroring duplicates the same data for reliability; striping distributes different portions for performance.
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official IP past-paper collection or Report an issue.