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GDPR Quiz: 12 Questions With Answers

Twelve questions for privacy teams, Salesforce admins and anyone preparing for GDPR training. Each answer explains the rule and quotes the Article it comes from, so you can check it yourself.

12 questions · every answer cites the law · last reviewed 19 October 2026

Where things stand: GDPR has applied since 25 May 2018. A Commission proposal to amend it (the Digital Omnibus, COM(2025) 837) was still awaiting a Parliament committee decision on 19 Oct 2026, so the answers below reflect the law in force today.
0/12 answered · 0 correct
  1. Question 1 of 12 · easy

    Under GDPR, how long does an organisation have to respond to a data subject access request (DSAR)?

  2. Question 2 of 12 · easy

    How quickly must a controller notify the supervisory authority of a personal data breach?

  3. Question 3 of 12 · medium

    When must a controller tell the affected individuals about a personal data breach?

  4. Question 4 of 12 · hard

    A company fails to honour data subject rights, such as access and erasure requests (Articles 12 to 22). What is the maximum GDPR fine for this type of infringement?

  5. Question 5 of 12 · easy

    Which of these is NOT one of the six lawful bases for processing under Article 6?

  6. Question 6 of 12 · easy

    A company stores its customer records in a cloud CRM. The company decides what data to collect and why; the CRM vendor stores it on the company's instructions. Under GDPR, the company is the:

  7. Question 7 of 12 · medium

    Which organisation must appoint a Data Protection Officer (DPO) under Article 37?

  8. Question 8 of 12 · medium

    When is a Data Protection Impact Assessment (DPIA) required?

  9. Question 9 of 12 · hard

    A customer asks you to erase their data. Which reason lets you keep some of it under Article 17(3)?

  10. Question 10 of 12 · medium

    Your team replaces customer names in a test environment with tokens but keeps the lookup table that maps tokens back to names. Is that test data still personal data under GDPR?

  11. Question 11 of 12 · medium

    A US company with no EU office sells software subscriptions to customers in France. Does GDPR apply to it?

  12. Question 12 of 12 · easy

    Which of these is special category data under Article 9?

Answer key with sources

Each answer quotes the provision it comes from. Open a question to see it.

1. Under GDPR, how long does an organisation have to respond to a data subject access request (DSAR)?

Answer: One month from receipt, extendable by two further months for complex or numerous requests

Article 12(3) sets one month from receipt. It can be extended by two further months where necessary, and the person must be told about the extension, with reasons, within the first month. "30 days" is a common shorthand but the law says one month, and 45 + 45 days is the California (CCPA) rule.

“without undue delay and in any event within one month of receipt of the request. That period may be extended by two further months where necessary”
GDPR Article 12(3)
2. How quickly must a controller notify the supervisory authority of a personal data breach?

Answer: Without undue delay and, where feasible, within 72 hours of becoming aware of it

Article 33(1) sets 72 hours from the moment the controller becomes aware of the breach. Notification is not needed if the breach is unlikely to result in a risk to people. A processor that discovers a breach must tell the controller without undue delay (Article 33(2)). A pending EU proposal would change this rule, but 72 hours is the law today.

“the controller shall without undue delay and, where feasible, not later than 72 hours after having become aware of it, notify the personal data breach to the supervisory authority”
GDPR Article 33(1)
3. When must a controller tell the affected individuals about a personal data breach?

Answer: When the breach is likely to result in a high risk to their rights and freedoms

Article 34(1) requires telling individuals without undue delay when the breach is likely to result in a high risk. That bar is higher than the "risk" test for notifying the authority. It is not needed if, for example, the data was protected by measures such as encryption that make it unintelligible (Article 34(3)). The 500-person figure comes from US HIPAA breach rules, not GDPR.

“likely to result in a high risk to the rights and freedoms of natural persons, the controller shall communicate the personal data breach to the data subject without undue delay.”
GDPR Article 34(1)
4. A company fails to honour data subject rights, such as access and erasure requests (Articles 12 to 22). What is the maximum GDPR fine for this type of infringement?

Answer: Up to €20 million or 4% of total worldwide annual turnover of the preceding financial year, whichever is higher

Article 83(5)(b) puts data subject rights in the higher tier: €20 million or 4% of worldwide annual turnover, whichever is higher. The €10 million / 2% tier in Article 83(4) covers obligations such as security and breach notification (Articles 25 to 39). Both are maximums; the authority sets the actual amount case by case.

“up to 20 000 000 EUR, or in the case of an undertaking, up to 4 % of the total worldwide annual turnover of the preceding financial year, whichever is higher”
GDPR Article 83(5)(b)
5. Which of these is NOT one of the six lawful bases for processing under Article 6?

Answer: The data is publicly available online

The six lawful bases are consent, contract, legal obligation, vital interests, public task and legitimate interests. Data being public is not a lawful basis; you still need one of the six. Consent is only one option, so not every use of personal data needs consent.

“Processing shall be lawful only if and to the extent that at least one of the following applies: (a) the data subject has given consent”
GDPR Article 6(1)
6. A company stores its customer records in a cloud CRM. The company decides what data to collect and why; the CRM vendor stores it on the company's instructions. Under GDPR, the company is the:

Answer: Controller

The controller decides the purposes and means of processing (Article 4(7)). The CRM vendor processes data on the controller's behalf, which makes it a processor (Article 4(8)). When a processor engages another processor, that second company is usually called a sub-processor (Article 28).

“‘controller’ means the natural or legal person, public authority, agency or other body which, alone or jointly with others, determines the purposes and means of the processing of personal data”
GDPR Article 4(7) and 4(8)
7. Which organisation must appoint a Data Protection Officer (DPO) under Article 37?

Answer: A company whose core activities involve regular and systematic monitoring of individuals on a large scale

Article 37(1) has three triggers: public authorities, core activities that need large-scale regular and systematic monitoring, and core activities that involve large-scale processing of special category or criminal data. Headcount is not a trigger; the 250-employee figure belongs to the records-of-processing rule in Article 30(5). National law can require a DPO in more cases (Article 37(4)).

“the core activities of the controller or the processor consist of processing operations which, by virtue of their nature, their scope and/or their purposes, require regular and systematic monitoring of data subjects on a large scale”
GDPR Article 37(1)(b)
8. When is a Data Protection Impact Assessment (DPIA) required?

Answer: Before processing that is likely to result in a high risk to people's rights and freedoms

Article 35(1) requires a DPIA before high-risk processing starts, especially with new technologies. Article 35(3) names cases that always need one, such as profiling that produces legal or similarly significant effects, and large-scale processing of special category data. Supervisory authorities also publish lists of processing that needs a DPIA (Article 35(4)).

“is likely to result in a high risk to the rights and freedoms of natural persons, the controller shall, prior to the processing, carry out an assessment of the impact”
GDPR Article 35(1)
9. A customer asks you to erase their data. Which reason lets you keep some of it under Article 17(3)?

Answer: You need it to comply with a legal obligation, such as a statutory record-keeping requirement

Article 17(3) lists the exceptions, including compliance with a legal obligation and the establishment, exercise or defence of legal claims. Business usefulness and technical difficulty are not exceptions. Consent can be withdrawn at any time (Article 7(3)). Keep only what the obligation requires and erase the rest.

“Paragraphs 1 and 2 shall not apply to the extent that processing is necessary: ... (b) for compliance with a legal obligation which requires processing by Union or Member State law to which the controller is subject”
GDPR Article 17(3)(b)
10. Your team replaces customer names in a test environment with tokens but keeps the lookup table that maps tokens back to names. Is that test data still personal data under GDPR?

Answer: Yes. Data that can be linked back to a person using additional information is still personal data

Recital 26 says pseudonymised data that can be attributed to a person with additional information is still personal data. Only truly anonymous data, where people are no longer identifiable, falls outside GDPR. Pseudonymisation is still a recommended safeguard (Articles 25 and 32); it reduces risk but does not take the data out of scope.

“Personal data which have undergone pseudonymisation, which could be attributed to a natural person by the use of additional information should be considered to be information on an identifiable natural person.”
GDPR Recital 26
11. A US company with no EU office sells software subscriptions to customers in France. Does GDPR apply to it?

Answer: Yes. GDPR applies when a company outside the EU offers goods or services to people in the EU

Article 3(2) extends GDPR to companies outside the EU that offer goods or services to people in the EU, or monitor their behaviour in the EU. The test is where the person is, not their citizenship or where the servers are. Such a company usually also needs an EU representative (Article 27).

“the processing of personal data of data subjects who are in the Union by a controller or processor not established in the Union, where the processing activities are related to: (a) the offering of goods or services”
GDPR Article 3(2)
12. Which of these is special category data under Article 9?

Answer: Data concerning health

Article 9(1) lists special categories, including health, genetic and biometric data, racial or ethnic origin, political opinions, religious beliefs, trade union membership, and sex life or sexual orientation. Processing them is prohibited unless an Article 9(2) condition applies, such as explicit consent. An email or IP address can be personal data, but it is not special category data.

“Processing of personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, or trade union membership, and the processing of genetic data, biometric data for the purpose of uniquely identifying a natural person, data concerning health”
GDPR Article 9(1)

These quizzes are general information about the law, not legal advice. Check the linked source, or ask your counsel, before relying on an answer.