Subdomain 1.2: Explain the importance of data security in relation to AI.
1.A malware-classification team has only a handful of samples from a rare ransomware family, and collecting more is not possible. Which technique can expand the training set from the existing samples?
- A.Data cleansing: drop the rare-family samples as outliers so the dataset only contains well-represented categories
- B.Data verification: re-check each rare sample's checksum so the training set contains the same samples with added trust
- C.Data augmentation: derive label-preserving variants of existing samples, such as padded or reordered binaries
- D.Data lineage: log the transformations of every rare sample so reviewers can see exactly where the samples came from
Show answer & explanation
Correct answer: C — Data augmentation: derive label-preserving variants of existing samples, such as padded or reordered binaries
- A. Removing rare samples as outliers would shrink the family's representation further, the opposite of the goal of expanding the available training data.
- B. Verification confirms authenticity and integrity of existing samples but produces no additional examples, so the dataset stays just as small.
- C. Augmentation creates new training examples from existing ones through label-preserving transformations. Teams should still review the variants, since errors or leaked content in the originals are inherited.
- D. Lineage tracking documents history and transformations; it does not generate new samples, so the rare family remains underrepresented.