Certified Ethical Hacker Exam (CEHv13)
Last Update Apr 20, 2026
Total Questions : 584
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Sarah, an ethical hacker at a San Francisco-based financial firm, is testing the security of their customer database after a recent data exposure incident. Her analysis reveals that the sensitive client information is safeguarded using a symmetric encryption algorithm. She observes that the algorithm processes data in 64-bit blocks and supports a variable key size from 32 to 448 bits. During her penetration test, Sarah intercepts a ciphertext transmission and notes that the encryption was developed as a replacement for DES, an older algorithm. She aims to determine if the algorithm’s flexible key size could be susceptible to brute-force attacks. The algorithm is also noted for its use in secure storage, a critical application for the firm’s data protection.
Which symmetric encryption algorithm should Sarah identify as the one used by the firm?
A corporation uses both hardware-based and cloud-based solutions to distribute incoming traffic and absorb DDoS attacks, ensuring legitimate requests remain unaffected. Which DDoS mitigation strategy is being utilized?
During a security penetration test at ABC Financial Services in Miami, Florida, on July 9, 2025, ethical hacker Javier Morales targets the company’s online banking portal to assess its resilience. Over several hours, the portal’s web server begins to falter, with legitimate users reporting inability to log in or complete transactions. The IT team notices the server is struggling to accept new connections, as its maximum connection limit is nearly reached, despite no significant spike in overall network traffic. Javier’s controlled test, run from a secure system, logs interactions to simulate a real attack, aiming to evaluate the IT team’s ability to identify the threat.
What DoS or DDoS attack technique is Javier’s exercise primarily simulating?
A penetration tester discovers malware on a system that disguises itself as legitimate software but performs malicious actions in the background. What type of malware is this?