Detailed Explanations for Questions 301-350 Q301 & Q306. What is the difference between a traditional firewall and an IPS? Why D is correct: An Intrusion Prevention System (IPS) sits inline with traffic and has the capability to actively inspect packet contents and drop malicious packets in real-time. A traditional firewall primarily filters based on IP

Detailed Explanations for Questions 271-300 Q271. What is the purpose of a man-in-the-middle attack? Why C is correct: A Man-in-the-Middle (MitM) attack positions the attacker between two communicating parties. The primary goal is often to intercept, eavesdrop, or hijack an existing authenticated session to gain unauthorized access to data or services without needing to crack

Detailed Explanations for Questions 251-270 Q251. What year did the Ping of Death first appear? Why D is correct: The Ping of Death vulnerability was publicly disclosed and became widely known in 1996. It involved sending malformed or oversized ICMP packets (larger than the maximum 65,535 bytes allowed by the IP protocol), which, when reassembled

Detailed Explanations for Questions 226-250 Q226. You are the senior manager in the IT department for your company. What is the most cost-effective way to prevent social engineering attacks? Why D is correct: Security awareness training is the most cost-effective defense against social engineering because these attacks target human psychology, not technical vulnerabilities. Training educates

Detailed Explanations for Questions 201-225 Q201. Why would an attacker want to avoid tapping into a fiber-optic line? Why B is correct: Fiber-optic tapping requires physically accessing the cable and bending it to leak light signals to a receiver. This process is delicate; if the bend radius is too tight or the tap is poorly

Detailed Explanations for Questions 181-200 Q181. Which type of malware is likely the most impactful? Why C is correct: Ransomware is currently considered the most impactful type of malware due to its direct financial consequences. It encrypts critical data and demands payment for decryption, causing operational downtime, data loss, and significant financial costs (ransom payments

Detailed Explanations for Questions 151-180 Q151. In which phase within the ethical hacking framework do you alter or delete log information? Why D is correct: Covering tracks is the final phase of the CEH hacking methodology, where attackers remove evidence of their presence and activities. This includes deleting or modifying system, event, application, and audit

Detailed Explanations for Questions 126-150 Q126. Which of the following describes a race condition? Why A is correct: A race condition is a software vulnerability that occurs when the behavior of a program depends on the relative timing of events, such as the order in which threads are scheduled, or processes execute. In security contexts,

Detailed Explanations for Questions 101-125 Q101. What is the major vulnerability of an ARP request? Why D is correct: ARP (Address Resolution Protocol) has no authentication mechanism. Any device on the local network can send an unsolicited ARP reply claiming to own any IP address, enabling ARP spoofing/poisoning attacks. Attackers can redirect traffic by associating

Detailed Explanations for Questions 61-100 Q61. During a port scan, you send a SYN packet and receive a SYN/ACK response. What does this indicate about the port? Why B is correct: In the TCP three-way handshake defined by RFC 793, when a SYN packet is sent to an open port, the target system responds with