MCQs

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Which of the following best defines Privacy-Enhancing Technologies (PETs)?
a. Tools that reduce data storage capacity
b. Technologies to enhance marketing analytics
c. Tools and methods that secure data while preserving user privacy
d. Methods for generating public user data
Answer: cusercentrics+2
The primary purpose of PETs in cybersecurity is to:
a. Encrypt all types of data indiscriminately
b. Balance data utility and individual privacy
c. Replace firewalls and antivirus software
d. Eliminate the need for encryption keys
Answer: busercentrics+1
Which of the following is an example of a PET based on mathematical noise?
a. Zero-Knowledge Proof
b. Differential Privacy
c. Homomorphic Encryption
d. Synthetic Data Generation
Answer: bdecentriq+1
Data minimization, a principle supported by PETs, aims to:
a. Increase the data stored about each individual
b. Collect only necessary personal data
c. Share as much data as possible for analytics
d. Eliminate all customer data entirely
Answer: bthelegalschool+1
Which PET allows computations on encrypted data without decrypting it?
a. Homomorphic Encryption
b. RAPPOR
c. Anonymization
d. Data Masking
Answer: astaragile+1
The technique that enables identity verification without revealing underlying information is called:
a. Tokenization
b. Zero-Knowledge Proof
c. Blockchain Hashing
d. Steganography
Answer: bthelegalschool+1
Which PET relates to transforming identifiable data into non-identifiable form?
a. Data anonymization
b. Cryptographic hashing
c. Firewalls
d. Synthetic access control
Answer: ausercentrics+2
Federated learning enhances privacy by:
a. Centralizing all user data to train models
b. Training machine learning models without sharing raw data
c. Using differential privacy to corrupt learning results
d. Sharing personal data across networks securely
Answer: busercentrics+1
Which PET is designed to ensure individual data points cannot identify users after noise addition?
a. Zero-Knowledge Proof
b. Synthetic Data
c. Differential Privacy
d. Data Encryption Standard
Answer: cdecentriq+1
Google’s RAPPOR tool uses which privacy concept?
a. Homomorphic encryption
b. Differential privacy
c. Data fragmentation
d. Deep packet inspection
Answer: busercentrics
What is the primary function of data anonymization tools like Amnesia?
a. Encrypt entire databases
b. Replace data analysis systems
c. Remove identifiable details from datasets
d. Generate fake data
Answer: cusercentrics
The UK Information Commissioner’s Office identifies PETs under how many categories?
a. Two
b. Four
c. Six
d. Eight
Answer: busercentrics
Synthetic data is beneficial in cybersecurity because it:
a. Provides test datasets that mimic real data safely
b. Encrypts real user data
c. Prevents all cyber-attacks automatically
d. Replicates actual data exposures
Answer: adecentriq
Which PET allows safe analysis of encrypted datasets in cloud computing environments?
a. Tokenization
b. Homomorphic Encryption
c. Secure Logging
d. Firewall Filtering
Answer: bstaragile+1
A key limitation of PETs is:
a. They cannot be combined with encryption
b. They reduce data utility
c. They are only suitable for small enterprises
d. They violate privacy regulations
Answer: bfpf+1
Zero-Knowledge Proofs are particularly useful in:
a. Network routing optimization
b. Secure authentication and blockchain
c. Malware scanning
d. File compression
Answer: bthelegalschool+1
Differential privacy works by:
a. Encrypting all personal information
b. Introducing random noise to queries or datasets
c. Blocking unauthorized IPs
d. Creating multiple data copies
Answer: bdecentriq+1
Privacy-enhancing technologies align with which broader principle?
a. Privacy by Design
b. Data Maximization
c. Centralized Data Mining
d. Open Access Frameworks
Answer: afpf+1
PETs like pseudonymization primarily:
a. Replace real identifiers with artificial ones
b. Delete entire user databases
c. Mask encryption keys
d. Transform network topology
Answer: ainformationpolicycentre
Which regulation most explicitly requires the adoption of PETs?
a. COPPA
b. GDPR
c. SOX
d. HIPAA
Answer: binformationpolicycentre+1
Homomorphic encryption supports which cybersecurity goal?
a. Data availability
b. Safe computation over encrypted data
c. Multi-factor authentication
d. Network redundancy
Answer: bstaragile+1
Secure Multi-Party Computation (SMPC) allows:
a. Multiple users to decrypt a single dataset
b. Parties to jointly compute results without sharing raw data
c. Only one entity to perform decryption
d. Centralized data processing
Answer: bthelegalschool+1
Data masking differs from anonymization because it:
a. Hides sensitive data temporarily
b. Permanently deletes attributes
c. Encrypts identifiers indefinitely
d. Randomizes storage locations
Answer: aplacementpreparation+1
PETs improve compliance with which act concerning consumer data?
a. CCPA
b. DMCA
c. FISMA
d. NIST
Answer: ausercentrics
What is the relationship between PETs and data minimization?
a. PETs remove all metadata permanently
b. PETs implement mechanisms to use minimal necessary personal data
c. PETs allow extensive data collection freely
d. PETs prevent all analytical processing
Answer: bfpf+1
Homomorphic encryption is most useful for:
a. Data-at-rest encryption
b. Enabling encrypted cloud computations
c. Protecting local files only
d. Tokenizing passwords
Answer: bstaragile+1
In AI systems, PETs reduce which major risk?
a. Algorithm bias
b. Data exposure during processing
c. Overfitting
d. Downtime error
Answer: busercentrics+1
What does the “federated” in federated analytics represent?
a. Centralized database merging
b. Localized data processing with model aggregation
c. Peer-to-peer user exchange
d. Open-source blockchain
Answer: bdecentriq+1
What is a potential downside of differential privacy?
a. Reduced data accuracy
b. Increased system vulnerability
c. Data ownership conflicts
d. Corrupted encryption
Answer: athelegalschool+1
In PET adoption, cost challenges are primarily due to:
a. Excessive hardware requirements
b. Complex cryptographic computations
c. Insufficient workforce training
d. Weak software integration
Answer: bfpf+1
Which PET supports verifiable data sharing without exposure?
a. Zero-Knowledge Proof
b. SSL/TLS
c. Data Masking
d. Firewall
Answer: astaragile+1
Synthetic datasets are primarily used for:
a. Model training and testing without real data exposure
b. Encrypting databases
c. Increasing storage efficiency
d. Compressing datasets
Answer: adecentriq
Privacy-enhancing technologies like RAPPOR are examples of:
a. Federated systems
b. Differential privacy mechanisms
c. Hardware encryption
d. Security gateways
Answer: busercentrics
Which PET most closely aligns with blockchain validation?
a. Anonymization
b. Zero-Knowledge Proof
c. Tokenization
d. Hash salting
Answer: bthelegalschool+1
PETs contribute to consumer trust by:
a. Allowing surveillance detection
b. Safeguarding personal data handling
c. Hiding all user logs
d. Encrypting only metadata
Answer: bfpf+1
The use of synthetic data in health research helps because it:
a. Replaces identifiable medical records
b. Encrypts hospital databases directly
c. Prevents data anonymization
d. Breaks HIPAA compliance
Answer: adecentriq
Which principle underlies PET-based system design?
a. Default Denial
b. Privacy by Default
c. Least Privilege
d. Open Source
Answer: busercentrics+1
A PET combining encryption with secure key sharing among users is:
a. SMPC
b. TLS
c. MFA
d. VPN
Answer: astaragile+1
PETs differ from traditional encryption because they:
a. Focus solely on storage security
b. Allow data use without compromising privacy
c. Increase data duplication
d. Rely only on hardware-based controls
Answer: busercentrics+2
Which PET helps mitigate risk of user profiling?
a. Differential Privacy
b. IDS
c. SSL Certificate
d. Firewall
Answer: athelegalschool+1
PETs like Amnesia ensure privacy through:
a. k-anonymity and differential privacy models
b. PKI and SSL encryption
c. IP hiding
d. Token hashing
Answer: ausercentrics
Homomorphic encryption enables:
a. Secure computation on cipher text
b. Traffic filtering
c. Authentication logging
d. Blockchain consensus
Answer: astaragile+1
One example of a PET used by browsers is:
a. RAPPOR by Google
b. VPN Overlay
c. TLS Handshake
d. HTTPS Redirect
Answer: ausercentrics
Which sector benefits most from synthetic datasets?
a. Healthcare and finance
b. Construction and logistics
c. Manufacturing only
d. Agriculture
Answer: adecentriq
PETs promote privacy-preserving AI by enabling:
a. Decentralized model training
b. Centralized data collection
c. Full user identification
d. Unencrypted model testing
Answer: ausercentrics+1
Tokenization, as a PET, replaces sensitive data with:
a. Non-sensitive placeholder tokens
b. Ciphertext-only formats
c. Public keys
d. Encrypted algorithms
Answer: ainformationpolicycentre
The integration of PETs supports compliance with which AI-related regulation?
a. EU AI Act
b. ITAR
c. COPPA
d. PCI DSS
Answer: ausercentrics
Secure multi-party computation ensures:
a. Confidential collaboration among multiple entities
b. Cloud-hosted data transfer only
c. Reversible encryption
d. Data replication across nodes
Answer: athelegalschool+1
PETs are limited by:
a. Trade-offs between privacy and data utility
b. Lack of encryption algorithms
c. Hardware unavailability
d. Software blacklisting
Answer: afpf+2
A privacy-centric approach embedded into design and architecture is called:
a. Privacy by Design
b. Security through Obscurity
c. Data Governance Model
d. Privacy Framework Mandate
Answer: afpf+1

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