MCQs

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Overall MCQs for Reference

Which term best defines the unauthorized access and disclosure of sensitive data?
a. Data mining
b. Data breach
c. Data transformation
d. Data redundancy
Answer: b. Data breachwikipedia+2
What is generally the first step in a data breach incident response?
a. Punishing personnel
b. Containing the breach
c. Upgrading hardware
d. Ignoring the issue
Answer: b. Containing the breachibm+1
In data science, which type of data is most commonly targeted in a breach?
a. Pseudonymous data
b. Open datasets
c. Personally identifiable information (PII)
d. Unstructured data
Answer: c. Personally identifiable information (PII)n2ws+2
What is a common root cause of data breaches?
a. Proper use of encryption
b. Strong passwords
c. Software vulnerabilities
d. Routine patching
Answer: c. Software vulnerabilitieshackerone+1
Which of the following is NOT typically caused by a data breach?
a. Identity theft
b. Data redundancy
c. Financial loss
d. Reputational damage
Answer: b. Data redundancyn2ws+1
Data breaches often result in which legal requirement?
a. Publishing research papers
b. Data breach notification to affected individuals
c. Firing all employees
d. Data warehouse restructuring
Answer: b. Data breach notification to affected individualsgeeksforgeeks+1
Which of the following is a technical way to prevent data breaches?
a. Ignoring update notifications
b. Implementing access controls
c. Making all data public
d. Using default passwords
Answer: b. Implementing access controlssecurityscorecard+1
What is the main motive for financially driven data breaches?
a. Data visualization
b. Data sharing
c. Data monetization
d. Data loss prevention
Answer: c. Data monetizationwikipedia+1
Which regulation mandates reporting of data breaches in the EU?
a. HIPAA
b. GDPR
c. SOX
d. PCI DSS
Answer: b. GDPRexamradar+1
What does “insider threat” mean in the context of data breaches?
a. Outsiders attacking a network
b. Employees or insiders causing breaches
c. Only physical theft of hardware
d. None of the above
Answer: b. Employees or insiders causing breachescyberark+2
What is the outcome of failing to notify individuals after a data breach?
a. Legal penalties
b. Enhanced trust
c. Reward points
d. System optimization
Answer: a. Legal penaltiesexamradar+1
Which kind of breach involves a user’s credentials being stolen and misused?
a. Physical breach
b. Credential stuffing
c. Power failure
d. Quality assurance
Answer: b. Credential stuffinghackerone+1
Data exfiltration in a breach refers to:
a. Encrypting records for security
b. Unauthorized data transfer outside the organization
c. Valid data backup
d. Removing duplicate records
Answer: b. Unauthorized data transfer outside the organizationn2ws+1
What data should be prioritized for encryption to avoid breaches?
a. Marketing statistics
b. Public data
c. Sensitive or critical data
d. User interface elements
Answer: c. Sensitive or critical databluevoyant+1
What is an example of data leakage contributing to a breach?
a. Regular software updates
b. Use of unsecured cloud storage
c. Encrypted communication only
d. Multi-factor authentication
Answer: b. Use of unsecured cloud storagebluevoyant+1
Which breach incident involved exposure of millions of Facebook user records?
a. Log4Shell exploit 2021
b. Kaseya ransomware 2021
c. Facebook data breach 2021
d. JBS ransomware 2021
Answer: c. Facebook data breach 2021hackerone
What is the likely effect on a company’s stock price immediately after a major data breach?
a. No change
b. Short-term decline
c. Permanent increase
d. Long-term growth
Answer: b. Short-term declinewikipedia
Which method is most effective at identifying data vulnerabilities before a breach occurs?
a. Ignoring logs
b. Regular risk assessments
c. Deleting backups
d. Disabling firewalls
Answer: b. Regular risk assessmentsscrut+1
What is a consequence of accidental data exposure on the public internet?
a. Marketing gains
b. Data breach
c. Patent approval
d. Ethical approval
Answer: b. Data breachbluevoyant+1
What does HIPAA regulate in data breach contexts?
a. All bank accounts
b. Healthcare data privacy and security
c. Social networks
d. Cloud providers globally
Answer: b. Healthcare data privacy and securityexamradar
Which technology is often exploited for data breaches in cloud environments?
a. Encrypted VPNs
b. Unsecured S3 buckets
c. Hardware firewalls
d. USB drives only
Answer: b. Unsecured S3 bucketsn2ws+1
What does “data minimization” mean for breach prevention?
a. Collecting more data than necessary
b. Storing unencrypted data
c. Reducing collected data to only what is needed
d. Outsourcing data
Answer: c. Reducing collected data to only what is neededexamradar+1
Email phishing is a technique often used to:
a. Improve system speed
b. Steal credentials leading to breaches
c. Generate reports
d. Validate machine learning models
Answer: b. Steal credentials leading to breacheswikipedia+1
Which organizational practice is best for preventing insider data breaches?
a. One-size-fits-all permissions
b. Role-based access controls
c. Default passwords
d. No access restrictions
Answer: b. Role-based access controlssecurityscorecard+1
Data breaches involving third-party vendors often result from:
a. Strong vendor controls
b. Unsecured vendor systems
c. Continuous audits
d. Enhanced employee training
Answer: b. Unsecured vendor systemsbluevoyant+1
What is the impact of a data breach on affected customers?
a. No consequences
b. Risk of identity theft
c. Increased system uptime
d. Data compression
Answer: b. Risk of identity theftfortinet+1
Which data type is covered by most data breach notification laws?
a. Database schemas
b. Source code
c. Personal information
d. Public datasets
Answer: c. Personal informationexamradar+1
What is the “dark web” often used for after a breach?
a. Data visualizations
b. Selling stolen data
c. Launching backup scripts
d. Public data repositories
Answer: b. Selling stolen datahackerone+1
Which of the following is a physical cause of a data breach?
a. Social engineering
b. Lost/stolen laptops with unencrypted data
c. SQL injection only
d. Cloud misconfiguration
Answer: b. Lost/stolen laptops with unencrypted datacyberark+1
What must a company do if a significant breach affects EU citizens’ data?
a. Notify the relevant authorities and affected individuals
b. Ignore the breach
c. Only patch systems silently
d. Publicly announce through social media only
Answer: a. Notify the relevant authorities and affected individualswikipedia+1
Multi-factor authentication (MFA) helps prevent:
a. Data redundancy
b. Unauthorized access from credential theft
c. Spam filtering
d. Data modeling errors
Answer: b. Unauthorized access from credential theftibm+1
What is the role of regular employee security training?
a. Reducing human error leading to breaches
b. Causing confusion only
c. Increasing cost
d. Creating hacks
Answer: a. Reducing human error leading to breachesscrut+1
Which type of malware is commonly associated with large data breaches?
a. Spreadsheet macros
b. Ransomware
c. Text editors
d. Syntax checkers
Answer: b. Ransomwaretestbook+2
What is an immediate “containment” action after detecting a data breach?
a. Disconnect affected machines from the network
b. Advertise on social media
c. Expand data collection scope
d. Increase network speeds
Answer: a. Disconnect affected machines from the networkcasepoint+1
Data breach notification laws exist in which regions?
a. Only North America
b. All US states and EU member states
c. South America only
d. None
Answer: b. All US states and EU member statesexamradar+1
Exposed API keys in public repositories may lead to:
a. Improved connectivity
b. Data breaches from unauthorized access
c. Hardware failures
d. Data normalization
Answer: b. Data breaches from unauthorized accessn2ws+1
What is the best lifecycle approach for data to minimize breach risks?
a. Unlimited retention
b. Secure deletion when no longer needed
c. Public backup at all times
d. Physical storage only
Answer: b. Secure deletion when no longer neededsecurityscorecard+1
What is the proper first response when a data scientist suspects a breach?
a. Report immediately to incident response team
b. Conceal the discovery
c. Delete all logs
d. Announce without verification
Answer: a. Report immediately to incident response teamcasepoint+1
Which is a common exploit vector leading to database breaches?
a. SQL injection
b. Enhanced encryption
c. Data deduplication
d. Scheduled reporting
Answer: a. SQL injectionhackerone+1
What should organizations do after a breach to avoid recurrence?
a. Conduct a thorough root-cause analysis
b. Increase marketing budget
c. Remove all backups
d. Delay investigation
Answer: a. Conduct a thorough root-cause analysiscasepoint+1
What is the most direct impact of data breaches for publicly traded companies?
a. Long-term profit spikes
b. Regulatory fines
c. Downloads increase
d. Ad blockers enabled
Answer: b. Regulatory finesibm+1
Which preventive practice involves disguising the identities in data files?
a. Encryption
b. Anonymization
c. Normalization
d. Data loading
Answer: b. Anonymizationincludehelp+1
Which incident counts as a data breach?
a. Data export with user consent
b. Unauthorized access and copying of sensitive data
c. Scheduled system maintenance
d. Routine reporting
Answer: b. Unauthorized access and copying of sensitive datacyberark+1
Which actor is LEAST commonly behind data breaches?
a. Organized crime
b. Political hacktivists
c. Machine learning models
d. Malicious insiders
Answer: c. Machine learning modelswikipedia
What is the recommended action when obsolete employee accounts are found?
a. Keep active for later use
b. Disable or delete immediately
c. Share with colleagues
d. Ignore and continue
Answer: b. Disable or delete immediatelysecurityscorecard+1
Which breach method involves deceiving employees to gain unauthorized data?
a. Social engineering
b. Firewall configuration
c. Data normalization
d. Model validation
Answer: a. Social engineeringhackerone+1
Why are cloud misconfigurations so impactful in data breach scenarios?
a. They are always visible to IT staff
b. Can expose vast data sets to the public
c. Automate patching
d. Prevent insider threats
Answer: b. Can expose vast data sets to the publicbluevoyant+1
How can endpoint protection help avoid breaches?
a. Allow unrestricted data access
b. Block malware and unauthorized activities
c. Increase breach risk
d. Remove firewalls
Answer: b. Block malware and unauthorized activitiessecurityscorecard+1
Which financial risk is directly due to data breaches?
a. Patent approval delays
b. Litigation and compensation costs
c. New data science hires
d. Data visualization budgets
Answer: b. Litigation and compensation costsibm+1
Frequent review of audit logs assists primarily in:
a. Real-time breach detection and investigation
b. Data prediction
c. Training models faster
d. Avoiding backup costs
Answer: a. Real-time breach detection and investigationcasepoint+1

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