PECB GDPR Exam - Topic 1 Question 5 Discussion

Actual exam question for PECB's GDPR exam

Question #: 5
Topic #: 1

Which statement below regarding the difference between anonymization and pseudonymization is correct?

AAnonymization is reversible and the original data can be retrieved with the use of a public key encryption, while pseudonymization is not reversible and can be used only for non-identifiable data, such as gender, nationality, and occupation

BAnonymization is not reversible and the original data cannot be attributed to an individual, while pseudonymization is reversible and the original data can be attributed to an individual with the use of additional information

CAnonymization is the process of replacing a portion of the data with a common value to keep the identity of individuals anonymous, whereas pseudonymization is the process of adding mathematical noise to the data

Show Suggested Answer

Suggested Answer: B

According to GDPR Recital 26, anonymization permanently removes any possibility of re-identification, making it irreversible. Pseudonymization, as defined in Article 4(5), is reversible if the correct key or additional information is available. Pseudonymization still qualifies as personal data under GDPR, whereas anonymized data falls outside the scope of GDPR.

by Carmela at Mar 20, 2025, 07:48 AM

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Phuong

5 months ago

I disagree with A. Anonymization is supposed to be irreversible!

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Sonia

5 months ago

C is misleading. Anonymization isn't just about replacing data.

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Raul

5 months ago

Totally agree with B! Pseudonymization can be reversed.

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Natalie

6 months ago

B is correct! Anonymization is definitely not reversible.

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Dean

6 months ago

Wait, I thought anonymization could be reversed? That's surprising!

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Patrick

6 months ago

I remember discussing how anonymization is a stronger form of data protection than pseudonymization, but I can't remember the exact details of how they differ.

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Dell

6 months ago

I’m a bit confused about the definitions. I thought anonymization was about making data completely untraceable, but I can't recall the specifics on pseudonymization.

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Ashley

7 months ago

I practiced a question like this before, and I feel like B is the right answer because it talks about how pseudonymization can be reversed with extra info.

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Domingo

7 months ago

I think I remember that anonymization means you can't trace the data back to individuals, but I'm not sure if pseudonymization is really reversible or not.

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Jill

7 months ago

The difference between these two terms is tricky, but I'll take my time and think through each option methodically to select the right one.

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Bok

7 months ago

This is a good test of my understanding of data privacy principles. I'm confident I can distinguish the correct answer here.

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Holley

7 months ago

Okay, I think I've got it. Anonymization is about removing the ability to identify individuals, while pseudonymization is about replacing identifiers with something else. I'll go with option B.

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Deeanna

8 months ago

Hmm, I'm a bit confused by the wording of the options. I'll need to re-read them carefully to make sure I grasp the nuances between the two concepts.

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Sage

8 months ago

This question seems straightforward, but I want to make sure I understand the key differences between anonymization and pseudonymization before answering.

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Julio

1 year ago

Wait, is this a trick question? I'm just gonna go with B and hope for the best. Anonymization is irreversible, pseudonymization is reversible. Simple as that... or is it? *scratches head*

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Misty

12 months ago

User1: Let's go with B then. Fingers crossed!

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Francis

12 months ago

User3: I'm sticking with B. It just makes the most sense to me.

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Latia

1 year ago

User2: But what if we're wrong? Maybe it's A or C.

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Reiko

1 year ago

User1: I think it's B too. Anonymization is irreversible, pseudonymization is reversible.

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Ben

1 year ago

I agree with Sharen, pseudonymization is reversible, not anonymization

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Marion

1 year ago

Ugh, data privacy terms are the bane of my existence. But I think B is the correct answer here. Anonymization = unidentifiable, pseudonymization = identifiable with extra info. Easy peasy, right? *eye roll*

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Remona

1 year ago

Yeah, pseudonymization allows for re-identification with additional information.

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Ruby

1 year ago

I agree, B is the correct answer. Anonymization makes data unidentifiable.

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Vesta

1 year ago

But A) makes sense because anonymization is reversible

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Sharen

1 year ago

I disagree, I believe the correct statement is B)

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Vesta

1 year ago

I think the correct statement is A)

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Nana

1 year ago

This is a tricky one, but I'm leaning towards B. Anonymization is about making data unidentifiable, while pseudonymization is about replacing identifiers in a way that can be traced back. Just don't ask me to explain it in plain English!

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Lucy

1 year ago

I'm not sure, but B sounds logical. Anonymization and pseudonymization both play a role in protecting data privacy.

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Sheron

1 year ago

I agree, B seems to be the right choice. Anonymization and pseudonymization have different levels of reversibility.

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Justine

1 year ago

I think B is correct. Anonymization makes data unidentifiable, while pseudonymization can be traced back.

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Emogene

1 year ago

I'm torn between A and B, but I'll have to go with B. Anonymization is irreversible, while pseudonymization is reversible with additional info. Gotta love those data privacy terms!

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Noel

1 year ago

I think C is the way to go. Anonymization is about replacing data, while pseudonymization is about adding noise to obscure the original data. Simple enough, right?

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Brandon

1 year ago

Hmm, I'm pretty sure B is the correct answer. Anonymization makes the data completely unidentifiable, while pseudonymization just replaces identifiers with a code that can be traced back to the original data.

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Deandrea

1 year ago

So, anonymization is more about protecting privacy by making data untraceable, while pseudonymization still allows for some level of identification. Got it.

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Glynda

1 year ago

That makes sense. Anonymization is irreversible, while pseudonymization can be reversed with additional information.

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Margot

1 year ago

I think you're right, B sounds like the correct answer. Anonymization is about making data unidentifiable, while pseudonymization still allows for tracing back to the original.

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