Free ISC2 CC Certified in Cybersecurity Actual Exam Questions - Question 11 Discussion

It’s D because overwriting specifically means writing different patterns repeatedly to ensure data can’t be recovered. Purging (A) is a broader term that could include overwriting but also other methods like degaussing or physical destruction. Since the question highlights “writing multiple patterns,” overwriting fits best as it directly describes that process on all storage media. Deleting and destroying are clearly not about writing patterns, so those options don’t make sense here.

A imo, purging often means more thorough than just one overwrite; it can mean multiple passes or patterns across all media, not just deleting or destroying physically.

Purging (A) can involve overwriting but also other techniques, so not just multiple patterns.

D is the only option that explicitly means rewriting data with new patterns.

Maybe D is right because deleting (B) just removes files without changing the actual data bits. Overwriting literally rewrites the data multiple times to ensure it’s gone.

D, since overwriting is the one that actually writes multiple patterns repeatedly.

I’m thinking it’s not purging (A) since that can mean different things, some not involving pattern writes. Destroying (C) is about physical damage, so overwriting (D) fits best for multiple pattern writing.

It’s D because overwriting is the only method specifically about writing multiple data patterns to storage. Purging can include other ways, but doesn’t always mean multiple pattern writes.

Option D makes the most sense because deleting (B) just removes pointers to data, not the data itself, so it doesn’t involve writing patterns. Destroying (C) usually means physically damaging the media rather than writing over it. Purging (A) might include overwriting but also refers to other techniques, so it’s less specific. Overwriting is the only one that explicitly involves writing multiple patterns across storage to ensure old data can’t be recovered.

Maybe D still fits best since overwriting literally means writing different patterns multiple times to erase previous data traces. Purging could be broader, like logical or physical methods, but it doesn’t necessarily focus on the multiple pattern writes. Deleting is just marking space free, and destroying is physical damage. The key phrase “multiple patterns” makes me think the answer wants the technical method of actually rewriting data, which points to D.

Makes sense that deleting doesn't fit; overwriting (D) is clearly about writing data multiple times.

Probably D here. Overwriting is the only option that actually involves writing new data patterns repeatedly across storage to prevent recovery. Purging sounds more like a general term and deleting definitely doesn’t rewrite anything; it just removes references. Destroying is physical, so it’s not about writing patterns. The question’s focus on multiple patterns points to overwriting as the best fit.

Adeel T. imo D makes the most sense here since deleting usually just removes file pointers without affecting the actual data. Purging sounds more like a thorough cleaning but not necessarily writing multiple patterns. Destroying is physical damage, so it doesn’t fit the “writing” part. Overwriting definitely involves writing data repeatedly across storage to ensure old info is gone, which matches the question’s wording better.

Could it be purging if it includes other secure erase methods beyond just writing patterns?

It’s D for sure. Overwriting is specifically about writing new data, often multiple times with different patterns, to make sure old info’s gone. Purging can cover more than just writing patterns—it might include other methods like encryption or degaussing—but overwriting is the one that fits the “multiple patterns” wording best here. Deleting just removes pointers, and destroying physically damages the media, so those don’t match the description.

D. Overwriting definitely fits since it’s about writing new data patterns repeatedly. Purging is broader and may not always mean multiple writes across all media.

D, because overwriting specifically means writing data patterns directly on the storage media, often multiple times with different sequences to prevent recovery. Purging can include other techniques like cryptographic erasure or physical methods, so it’s broader. This question seems focused on the act of writing multiple distinct patterns, which fits overwriting best.

D imo, it’s the only one that actually writes over the data repeatedly.

Deleting (B) just removes references, it doesn’t write patterns on media.

D/C? Overwriting (D) definitely fits, but destroying (C) sometimes implies physically making the media unusable, which might not involve patterns. Overwriting is more about writing data multiple times.