question stringlengths 21 114 | A stringlengths 5 117 | B stringlengths 3 114 | C stringlengths 4 77 | D stringlengths 4 71 | answer stringclasses 3
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In a TLS 1.3 handshake, what is the purpose of the 'pre_shared_key' extension? | To enable resumption of previous sessions without full key exchange | To authenticate the server's identity to the client | To negotiate which cipher suite will be used | To establish a secure channel with the Certificate Authority | A | cryptography |
Which of the following best describes a timing attack? | An attack that exploits cryptographic key reuse across sessions | An attack that measures computational time variations to extract secret information | An attack that floods a system with requests to cause a denial of service | An attack that intercepts messages by synchronizing with network timing | B | cryptography |
What is the primary function of a Web Application Firewall (WAF)? | To inspect and block malicious HTTP/HTTPS traffic based on signatures or rules | To replace the need for input validation in web applications | To enforce encryption between all backend servers | To monitor database query performance in real time | A | web_security |
Which OWASP Top 10 vulnerability occurs when user input is not properly sanitized before inclusion in SQL queries? | Broken Authentication | Insecure Deserialization | Injection | Security Misconfiguration | C | web_security |
In Cross-Site Scripting (XSS), what distinguishes Stored XSS from Reflected XSS? | Stored XSS payload persists in the application database; Reflected XSS payload is part of the immediate response only | Reflected XSS is always more dangerous than Stored XSS | Stored XSS only affects authenticated users; Reflected XSS affects anyone | Reflected XSS requires JavaScript; Stored XSS does not | A | web_security |
What does CSRF (Cross-Site Request Forgery) protection via tokens rely upon? | The attacker's inability to read the token from the page due to same-origin policy | Encryption of all cookies before transmission | Disabling all third-party cookies globally | Requiring users to re-authenticate for every request | A | web_security |
Which cryptographic algorithm is vulnerable to quantum computing attacks? | AES-256 | SHA-3 | RSA and Elliptic Curve Cryptography | HMAC-SHA256 | C | cryptography |
In a Diffie-Hellman key exchange, what is the primary risk if a weak prime is used? | The session key can be computed by an attacker | The handshake will fail and connection will be rejected | Only the client can communicate; the server cannot | Authentication becomes impossible | A | cryptography |
What is the purpose of salt in password hashing? | To speed up the hashing process | To prevent rainbow table attacks by ensuring identical plaintext passwords produce different hashes | To encrypt the password instead of hashing it | To allow password recovery if the original is forgotten | B | access_control |
Which of the following best describes a privilege escalation vulnerability? | A flaw allowing an attacker to gain higher-level permissions than originally assigned | A network protocol that is insecure | An outdated operating system version | A firewall rule that is too permissive | A | access_control |
In malware analysis, what does 'polymorphism' refer to? | Malware that changes its code structure to evade signature detection | Malware that targets multiple operating systems | Malware that requires multiple infections before becoming active | Malware that infects polymorphic functions only | A | malware_analysis |
What is the primary difference between a virus and a worm? | A virus requires a host program to propagate; a worm self-replicates independently | A virus only affects Windows; a worm affects all systems equally | A virus is detected immediately; a worm hides for years | A worm requires user interaction; a virus does not | A | malware_analysis |
In digital forensics, what is the importance of maintaining a 'chain of custody'? | To ensure evidence integrity and admissibility in legal proceedings | To speed up the forensic investigation process | To prevent malware from replicating during analysis | To encrypt sensitive data before investigation | A | forensics_ir |
Which of the following is a primary goal of incident response planning? | To eliminate all possible security incidents before they occur | To minimize detection time, containment time, and business impact when incidents occur | To ensure that all security personnel have identical skill levels | To replace antivirus software in all systems | B | forensics_ir |
What does a YARA rule help detect? | Network bandwidth anomalies | Malware and malicious files based on patterns and signatures | Outdated software versions | Misconfigured firewalls | B | forensics_ir |
In network security, what is the primary function of a network intrusion detection system (IDS)? | To modify traffic in real time to block threats | To monitor network traffic for suspicious activity and alert on policy violations | To replace the need for firewalls | To encrypt all data in transit | B | network_security |
Which protocol is most vulnerable to man-in-the-middle attacks due to lack of encryption? | HTTPS | SSH | HTTP | DNSSEC | C | network_security |
What is DNS spoofing? | Redirecting legitimate domain requests to a malicious server | Encrypting DNS queries to hide them from ISPs | Randomly changing IP addresses assigned to domains | Preventing DNS queries from reaching the DNS server | A | network_security |
In zero-trust architecture, what is the fundamental security principle? | Trust all traffic on internal networks; verify external traffic only | Never trust, always verify regardless of network location or source | Trust all authenticated users indefinitely | Trust based on IP address reputation alone | B | network_security |
What does a Certificate Authority (CA) verify when issuing a digital certificate? | That the website owner has not been convicted of fraud | That the website's encryption is stronger than competitors | That the applicant has legitimate ownership or control of the domain | That the website is not hosting illegal content | C | cryptography |
In public key infrastructure (PKI), what does a Certificate Revocation List (CRL) contain? | A list of all valid certificates issued by the CA | A list of certificates that have been revoked before their expiration date | A list of all users who have accessed a service | A list of encryption algorithms approved for use | B | cryptography |
Which access control model uses attributes and policies to determine access decisions? | Discretionary Access Control (DAC) | Mandatory Access Control (MAC) | Attribute-Based Access Control (ABAC) | Role-Based Access Control (RBAC) | C | access_control |
In Role-Based Access Control (RBAC), what does separation of duties refer to? | Assigning different roles to different people to prevent any single person from completing a sensitive operation | Preventing users from having multiple roles | Encrypting communication between different departments | Using different passwords for different systems | A | access_control |
What is the primary risk of oversharing in social engineering attacks? | It reveals information that attackers can use to impersonate trusted entities | It prevents users from accessing legitimate services | It automatically enables multi-factor authentication | It encrypts user sessions | A | web_security |
In SIEM (Security Information and Event Management), what is correlation analysis? | Comparing the quality of different security tools | Identifying relationships between multiple security events that may indicate a coordinated attack | Encrypting logs before storage | Organizing logs alphabetically by source IP | B | security_operations |
What is a false positive in the context of intrusion detection? | An alert triggered by legitimate traffic or activity that is not actually a threat | A malicious event that the system failed to detect | A legitimate user being denied access | An attacker successfully bypassing detection | A | security_operations |
Which tool is commonly used for vulnerability scanning? | tcpdump | Nessus or OpenVAS | curl | grep | B | security_operations |
In cloud security, what does data residency refer to? | The physical location where data is stored | The age of data in a database | The encryption strength used for data | The frequency of data backups | A | cloud_security |
What is the primary purpose of AWS Identity and Access Management (IAM)? | To manage cloud storage capacity | To control access to AWS resources through users, groups, and roles | To encrypt data during transmission | To monitor network latency | B | cloud_security |
In reverse engineering, what does static analysis involve? | Running a program in a controlled environment to observe behavior | Examining code without executing it | Replacing critical functions with monitoring hooks | Disassembling bytecode into x86 assembly | B | reverse_engineering |
What is the primary purpose of using breakpoints in a debugger during malware analysis? | To pause execution at specific points to inspect program state and behavior | To prevent malware from spreading to other systems | To encrypt sensitive memory regions | To force the program to terminate gracefully | A | reverse_engineering |
Which of the following best describes a return-oriented programming (ROP) attack? | An attack that executes arbitrary code by chaining together existing code sequences (gadgets) from the target process | An attack that exploits out-of-order CPU execution | An attack that reverse-engineers the source code from binary | An attack that redirects network traffic through a proxy | A | reverse_engineering |
What does a buffer overflow vulnerability allow an attacker to do? | Read sensitive data from an adjacent memory region only | Execute arbitrary code by overwriting the stack or heap | Slow down system performance temporarily | Change file permissions without authentication | B | reverse_engineering |
In SSL/TLS, what is the purpose of the cipher suite negotiation? | To authenticate the user with a password | To agree on encryption algorithms and key exchange methods for the session | To verify the server's physical location | To establish a backup connection channel | B | network_security |
Which attack exploits trust in a compromised or spoofed DNS server? | SQL injection | DNS poisoning | Cross-site scripting | Session hijacking | B | network_security |
What does rate limiting accomplish in application security? | It encrypts user requests | It prevents or slows down brute force and DoS attacks by restricting the number of requests from a source | It removes all malicious code from input | It prevents users from accessing the application | B | web_security |
In secure software development, what is the purpose of threat modeling? | To identify and mitigate potential security threats early in the design phase | To remove all functionality from an application | To encrypt all source code | To prevent developers from making mistakes | A | web_security |
What does a parameterized query (prepared statement) protect against? | Brute force attacks | SQL injection attacks | Denial of service attacks | Man-in-the-middle attacks | B | web_security |
In cryptography, what is a nonce? | A cryptographic key used for encryption | A number used only once to prevent replay attacks | A type of digital signature algorithm | A backup password for recovery | B | cryptography |
Which of the following is a key characteristic of asymmetric cryptography? | Both encryption and decryption use the same key | Uses a public key for encryption and a private key for decryption | It is faster than symmetric encryption for large data | It requires a pre-shared key before communication | B | cryptography |
What is the primary purpose of a digital signature? | To encrypt a message | To verify the authenticity and integrity of a message | To compress data for transmission | To create a backup of a file | B | cryptography |
In incident response, what is 'triage'? | Treating all incidents with the same priority | Prioritizing incidents based on severity and business impact | Deleting logs to prevent legal liability | Immediately shutting down all systems | B | forensics_ir |
What does MITRE ATT&CK provide? | A list of known zero-day vulnerabilities | A knowledge base of adversary tactics and techniques observed in real-world cyber attacks | A set of encryption standards for government use | A firewall configuration template | B | forensics_ir |
Which of the following best describes a rootkit? | Legitimate software for system administration | Malware that attempts to gain root-level access and hide its presence on a system | A toolkit for developing open-source software | A Linux kernel patch manager | B | malware_analysis |
What is the primary danger of drive-by downloads? | Malware is automatically downloaded and executed without user knowledge or consent | Files are deleted from the computer without warning | Network bandwidth is consumed rapidly | The user's mouse pointer moves involuntarily | A | malware_analysis |
In network forensics, what is packet capture (PCAP) used for? | Authenticating users on a network | Recording network traffic for analysis and evidence preservation | Encrypting network communications | Blocking malicious IP addresses | B | forensics_ir |
What does the principle of 'defense in depth' recommend? | Using a single, highly sophisticated security tool | Implementing multiple layers of security controls to reduce reliance on any single mechanism | Defending only the most critical systems | Ignoring threats that are unlikely to occur | B | security_operations |
Which of the following is a primary goal of security awareness training? | To teach employees to recognize and avoid social engineering and security threats | To eliminate all security vulnerabilities in the organization | To prevent employees from using the internet | To ensure all employees can perform penetration testing | A | security_operations |
What is a honeypot in cybersecurity? | A repository of security patches | A decoy system designed to attract and detect attackers | A list of blocked websites | A password management tool | B | security_operations |
In database security, what is SQL injection? | Injecting a malicious SQL statement into an input field to manipulate the database query | Adding extra data to a database backup | Encrypting all database fields | Limiting the number of database users | A | web_security |
What does the principle of least privilege mean? | Users should have the maximum permissions possible for their role | Only administrators should have any permissions | Users should have only the minimum permissions necessary to perform their job | Permissions should be granted once and never reviewed | C | access_control |
In cryptanalysis, what is a brute force attack? | Systematically trying all possible keys or passwords until finding the correct one | Analyzing the mathematical properties of an encryption algorithm | Exploiting a side-channel vulnerability | Using quantum computers to factor large numbers | A | cryptography |
Which TLS version is considered deprecated and should not be used? | TLS 1.2 | TLS 1.3 | TLS 1.0 and SSL 3.0 | All TLS versions are equally secure | C | cryptography |
What is a Session Fixation attack? | An attacker forces a user to use a known session ID to hijack the session | The system randomly changes session IDs to prevent attacks | Users are required to re-authenticate every minute | Sessions are encrypted before transmission | A | web_security |
In cloud environments, what does a Security Group do? | Groups security administrators together | Acts as a virtual firewall controlling inbound and outbound traffic to cloud instances | Manages encryption keys for cloud storage | Backs up security configurations | B | cloud_security |
What is the primary purpose of implementing Multi-Factor Authentication (MFA)? | To slow down legitimate users | To add an additional layer of security beyond passwords | To encrypt all user communications | To replace the need for strong passwords | B | access_control |
In network security, what is ARP spoofing? | Spoofing the sender address in an IP packet | Sending fake ARP replies to associate an attacker's MAC address with the IP of a legitimate host | Preventing ARP requests from being processed | Encrypting ARP traffic on the network | B | network_security |
What does 'CVSS' (Common Vulnerability Scoring System) provide? | A standardized method to assess the severity of security vulnerabilities | A list of all known vulnerabilities in the world | A firewall configuration guide | A password strength validator | A | security_operations |
In malware detection, what is heuristic analysis? | Running malware in an isolated environment to observe behavior | Analyzing code characteristics and behaviors to identify previously unknown malware | Scanning files against known malware signatures | Monitoring network traffic patterns | B | malware_analysis |
What is the primary risk of storing plaintext passwords in a database? | The database will become full faster | If the database is compromised, all passwords are immediately accessible to attackers | Users will forget their passwords more easily | Encryption will not work on the database | B | access_control |
Which of the following is a MITRE CWE Top 25 entry? | Poor coding style | Improper Input Validation | Using an older version of a software library | Having too many security controls | B | web_security |
In zero-knowledge proofs, what can a prover demonstrate to a verifier? | That the prover knows a secret without revealing the secret itself | That the prover is not a computer | That the prover is connected to the internet | That the prover has read a specific document | A | cryptography |
What does 'code obfuscation' attempt to do? | Make source code harder to understand and reverse engineer | Increase the speed of program execution | Prevent all security vulnerabilities | Encrypt user data automatically | A | reverse_engineering |
In API security, what is rate limiting? | Limiting the number of developers who can use an API | Controlling the frequency of API requests from a client to prevent abuse | Encrypting all API responses | Preventing all external API calls | B | web_security |
What is a Distributed Denial of Service (DDoS) attack? | A single attacker targeting multiple victims simultaneously | Multiple compromised machines attacking a single target to overwhelm its resources | An attack that deletes files on multiple servers | An encrypted connection between multiple users | B | network_security |
In Windows security, what does ASLR (Address Space Layout Randomization) protect against? | Buffer overflow attacks that rely on predictable memory addresses | Password cracking attempts | Network-based attacks only | USB-based malware | A | reverse_engineering |
What is the purpose of a security audit? | To identify and fix all security vulnerabilities immediately | To systematically evaluate controls and practices against a standard or baseline | To eliminate all risk from an organization | To prevent employees from accessing company resources | B | security_operations |
In cryptography, what is a hash function's key property? | It can be reversed to recover the original input | It produces a fixed-size output that is deterministic and practically impossible to reverse | It requires a secret key to function | It encrypts data in real time | B | cryptography |
What does 'phishing' exploit? | A technical vulnerability in software | Social engineering to trick users into revealing credentials or clicking malicious links | Poor network configuration | Weak encryption algorithms | B | web_security |
In secure coding, what does input sanitization accomplish? | Prevents the program from accepting any input | Removes or neutralizes potentially malicious characters or code from user input | Encrypts all user input automatically | Logs all input attempts | B | web_security |
What is the primary purpose of logging and monitoring in security? | To slow down system performance | To enable detection of security incidents and support forensic investigation | To encrypt all network traffic | To prevent all user access | B | security_operations |
In network protocols, what does DNSSEC do? | Encrypts DNS queries from users | Adds authentication to DNS responses to prevent DNS spoofing | Prevents all DNS requests from leaving the network | Makes DNS queries faster | B | network_security |
What is XML External Entity (XXE) injection? | Injecting malicious Java code into an application | A vulnerability that occurs when an XML parser processes external entities from untrusted sources | Encrypting XML data with external keys | Preventing XML parsing on web servers | B | web_security |
In container security, what is image scanning? | Taking pictures of containers in a warehouse | Analyzing container images for known vulnerabilities and malware before deployment | Encrypting container communications | Preventing containers from running | B | cloud_security |
What does penetration testing assess? | The speed of the network | The security of systems by simulating attacks to identify vulnerabilities | The usability of an application | The age of network equipment | B | security_operations |
In biometric security, what is false acceptance rate (FAR)? | The rate at which legitimate users are rejected | The rate at which unauthorized users are incorrectly accepted | The speed of biometric scanning | The cost of implementing biometrics | B | access_control |
What does the Principle of Least Surprise (in security context) recommend? | Users should be shocked by security measures to take them seriously | Security controls should behave intuitively and not cause unexpected failures for legitimate use | All security features should be hidden from users | Users should be surprised randomly to test awareness | B | security_operations |
In cryptography, what is a key derivation function (KDF)? | A function that transforms a password into a cryptographic key suitable for use | A function that generates random passwords | A type of encryption algorithm | A method for storing keys securely | A | cryptography |
What is the primary purpose of a VPN (Virtual Private Network)? | To increase internet browsing speed | To create an encrypted tunnel for secure communication over untrusted networks | To block all incoming connections | To prevent users from accessing external websites | B | network_security |
In incident response, what is 'containment'? | Storing incident reports in a database | Taking immediate actions to limit the scope and impact of a security incident | Preventing all users from accessing the affected system | Deleting evidence of the incident | B | forensics_ir |
What does a SIEM system primarily do? | Encrypts all network traffic automatically | Aggregates and analyzes security logs from multiple sources to detect suspicious activity | Prevents all malware from running | Manages user passwords for the organization | B | security_operations |
In web security, what is Click-Jacking? | Rapidly clicking on a website to cause denial of service | Tricking a user into clicking on a concealed, malicious element hidden behind a legitimate one | Stealing cookies from a web browser | Intercepting network packets during a click | B | web_security |
What does OAuth 2.0 primarily provide? | Encryption for all web communications | An authentication and authorization protocol allowing users to grant access to resources without sharing passwords | A method for detecting intrusions | A firewall configuration standard | B | access_control |
In malware analysis, what is static malware analysis? | Running the malware in a debugger to step through code | Analyzing malware code without executing it using tools like disassemblers and decompilers | Deploying the malware to production to observe its behavior | Monitoring network traffic from an infected system | B | malware_analysis |
What is the primary purpose of Web Application Scanning? | To scan web pages for spelling errors | To automatically identify vulnerabilities in web applications like SQL injection and XSS | To measure website traffic | To optimize website performance | B | security_operations |
In cloud security, what is a shared responsibility model? | All security responsibility belongs to the cloud provider only | The cloud provider and customer share security responsibilities based on the service model | The customer bears all security responsibility regardless of service model | Security responsibility is divided equally between all employees | B | cloud_security |
What does a 'backdoor' in software refer to? | A method to exit a program safely | An undocumented or hidden method to gain unauthorized access to a system or program | A port on a computer that faces backward | A type of error in code | B | malware_analysis |
In cryptography, what is a collision in a hash function? | Two different inputs producing the same hash output | A hash function crashing when processing large inputs | A hash value being used twice in one session | An encryption algorithm failing | A | cryptography |
What is the primary purpose of code signing? | To add comments to source code | To verify the authenticity and integrity of executable files | To prevent others from reading the source code | To encrypt the executable file | B | reverse_engineering |
In network security, what is BGP hijacking? | Unauthorized access to a corporate building | An attack that redirects Internet traffic by forging BGP announcements | Blocking certain ports on a firewall | Encrypting routing protocols | B | network_security |
What does sandboxing provide in security? | A large container for storing malware samples | An isolated environment where code can execute with restricted access to system resources | A backup storage location for important files | A method for compressing data safely | B | malware_analysis |
In authentication, what is a replay attack? | An attack where an attacker captures and replays a valid authentication message to gain unauthorized access | An attacker watching over a user's shoulder while typing a password | A user logging in multiple times simultaneously | An authentication system crashing | A | access_control |
What does certificate pinning accomplish? | Prevents the browser from storing certificates | Binds an application to a specific certificate to prevent man-in-the-middle attacks using fraudulent certificates | Encrypts all certificates | Makes certificate validation faster | B | cryptography |
In reverse engineering, what is static disassembly? | Disassembling code by running it in a debugger | Converting binary code to assembly language without executing it | Removing assembly language from a program | Assembling source code into binary form | B | reverse_engineering |
What is the primary purpose of intrusion prevention systems (IPS)? | Detecting intrusions only, without taking action | Actively blocking malicious traffic and preventing attacks in real time | Preventing users from accessing the internet | Encrypting all network traffic | B | security_operations |
In supply chain security, what is a software bill of materials (SBOM)? | An invoice for software licenses | A detailed list of all components, dependencies, and versions used in a software product | A backup copy of source code | A security certification document | B | security_operations |
What does a Security Orchestration, Automation, and Response (SOAR) platform do? | Manually handles all security alerts without assistance | Automates incident response workflows and orchestrates security tools to improve efficiency | Prevents all security incidents from occurring | Encrypts all incident data | B | security_operations |
In network forensics, what is flow analysis? | The study of how water moves through pipes | Analyzing network traffic flows to identify patterns, sources, and destinations of communications | Optimizing network performance | Preventing all network traffic | B | forensics_ir |
What is the primary risk of hardcoded credentials in code? | The code will execute more slowly | If the code is exposed or decompiled, credentials are immediately accessible to attackers | The application will not function properly | Users will be unable to authenticate | B | web_security |
In zero-trust security, what does 'implicit trust' mean? | All users and devices are implicitly trusted upon connection | Trust is never implicit; all access must be verified and validated | Only administrators are trusted | Devices on the internal network are automatically trusted | B | network_security |
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