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100+ Free Cybersecurity Foundation Practice Questions

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Key Facts: Cybersecurity Foundation Exam

40Q, 1 hour

Exam Format

PECB

70%

Passing Score

PECB

USD 500 exam-only

Exam Fee

PECB

PECB Cybersecurity Foundation certification exam evaluates candidates on official PECB domains and standards. Note: this practice set is an English-language MCQ study adaptation.

Sample Cybersecurity Foundation Practice Questions

Try these sample questions to test your Cybersecurity Foundation exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which set of properties forms the classic CIA triad that underpins information and cybersecurity objectives?
A.Confidentiality, integrity, and availability
B.Control, identification, and authentication
C.Compliance, insurance, and assurance
D.Confidentiality, isolation, and accountability
Explanation: The CIA triad names the three core security objectives: confidentiality (information is accessible only to authorized parties), integrity (information and systems are accurate and unaltered except by authorized means), and availability (information and services are accessible when needed). Most cybersecurity controls can be traced back to protecting one or more of these properties.
2In the context of ISO/IEC 27032, what does the term 'cyberspace' primarily describe?
A.Only the public internet and the websites reachable through it
B.The complex environment resulting from the interaction of people, software, and services on the internet by means of technology devices and connected networks
C.The physical data centers and cabling that carry network traffic
D.A virtual reality environment used for entertainment and simulation
Explanation: ISO/IEC 27032 defines cyberspace as the complex environment resulting from the interaction of people, software, and services on the internet, supported by technology devices and networks, which does not exist in any physical form. Cybersecurity, in turn, is concerned with preserving the confidentiality, integrity, and availability of information in that environment.
3An attacker sends an email that appears to come from a colleague and persuades an employee to reveal their password. Which attack category does this best illustrate?
A.Social engineering
B.Brute-force attack
C.Buffer overflow
D.Zero-day exploitation
Explanation: Social engineering manipulates people into performing actions or divulging confidential information, exploiting trust rather than technical flaws. Impersonating a trusted colleague to extract credentials is a classic social engineering scenario, often delivered through phishing.
4Which malware type encrypts a victim's files and demands payment in exchange for the decryption key?
A.Spyware
B.Adware
C.Ransomware
D.Rootkit
Explanation: Ransomware encrypts the victim's data or locks systems and extorts payment, usually in cryptocurrency, promising restoration. It has become one of the most damaging attack mechanisms against organizations of all sizes, which is why backups and incident response readiness are emphasized in cybersecurity programs.
5What distinguishes a worm from a virus?
A.A worm self-replicates across networks without attaching to a host program or requiring user action, while a virus needs a host file and typically user activation
B.A worm only infects mobile devices, while a virus only infects desktop computers
C.A worm is always harmless, while a virus is always destructive
D.A worm requires physical access to spread, while a virus spreads over email
Explanation: Viruses attach themselves to legitimate programs or documents and spread when a user executes the host. Worms are standalone malicious programs that exploit network services to copy themselves to other machines automatically, which allows them to spread far faster without any user involvement.
6A distributed denial-of-service (DDoS) attack primarily threatens which security objective?
A.Confidentiality
B.Integrity
C.Availability
D.Non-repudiation
Explanation: DDoS attacks flood a target with traffic from many compromised sources (a botnet), exhausting bandwidth or system resources so legitimate users cannot access the service. The direct impact is loss of availability, even if no data is read or altered.
7In a man-in-the-middle (MITM) attack, the attacker primarily:
A.Physically destroys networking equipment to sever communications
B.Secretly relays and possibly alters communications between two parties who believe they are communicating directly with each other
C.Encrypts the victim's disk and demands payment for the key
D.Guesses passwords by trying every possible combination
Explanation: In a MITM attack the adversary positions themselves between two communicating parties, intercepting and potentially modifying traffic while each side believes it is talking to the other. Defenses include strong mutual authentication and encrypted channels such as TLS with proper certificate validation.
8Which of the following best describes 'defense in depth'?
A.Relying on a single, very strong perimeter firewall to stop all attacks
B.Layering multiple, independent security controls so that if one fails, others still protect the asset
C.Keeping all security measures secret so attackers cannot plan around them
D.Outsourcing all security operations to a third-party provider
Explanation: Defense in depth uses overlapping layers of controls—physical, technical, and administrative—so that the failure or bypass of any single control does not fully expose the asset. It recognizes that no control is perfect and that redundancy across layers reduces overall risk.
9What is the primary purpose of a vulnerability assessment?
A.To actively exploit weaknesses and compromise systems as an attacker would
B.To systematically identify, quantify, and prioritize security weaknesses in systems and applications
C.To monitor employee productivity and network usage patterns
D.To draft the organization's information security policy
Explanation: A vulnerability assessment systematically scans and reviews systems to identify known weaknesses, estimate their severity, and rank them for remediation. It differs from penetration testing, which goes further by actively exploiting weaknesses to demonstrate real-world impact.
10Authentication that combines a password with a one-time code sent to a phone is an example of:
A.Single sign-on
B.Multi-factor authentication combining knowledge and possession factors
C.Biometric authentication
D.Federated identity management
Explanation: Multi-factor authentication (MFA) requires evidence from at least two different factor categories: something you know (password), something you have (phone or token), and something you are (biometrics). A password plus a phone-delivered one-time code combines the knowledge and possession factors, dramatically raising the bar against credential theft.

About the Cybersecurity Foundation Exam

The PECB Cybersecurity Foundation certification evaluates professional competence in governance, implementation, auditing, and management according to PECB standards.

Questions

40 scored questions

Time Limit

1 hour

Passing Score

70%

Exam Fee

USD 500 exam-only (PECB (Professional Evaluation and Certification Board))

Cybersecurity Foundation Exam Content Outline

~25%

Fundamental Concepts of Cybersecurity

Understanding the CIA triad, non-repudiation, defense in depth, security controls classification, and cybersecurity terminology.

~25%

Cybersecurity Threat & Vulnerability Landscape

Types of malware, social engineering attacks, network exploits, zero-day vulnerabilities, and threat actor profiles.

~25%

Technical & Organizational Security Controls

Identity and access management, encryption standards, network security architecture, vulnerability scanning, and physical security.

~25%

Cybersecurity Governance, Risk, and Incident Management

Risk management basics, incident response phases, compliance frameworks (NIST, ISO 27001), and security awareness programs.

How to Pass the Cybersecurity Foundation Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 40 questions
  • Time limit: 1 hour
  • Exam fee: USD 500 exam-only

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Cybersecurity Foundation Study Tips from Top Performers

1Review the official PECB candidate handbook
2Practice scenario-based questions across all domains
3Pace yourself to answer all questions within the time limit

Frequently Asked Questions

What is the format of the PECB Cybersecurity Foundation exam?

The official exam consists of 40 questions over 1 hour. This practice set provides 100 English-language MCQs as a study aid.

Is this practice test free?

Yes, 100% free with detailed explanations.