Eccouncil EC-Council Certified Security Specialist (ECSSv10) ECSS Exam Practice Test

Answer : C

In the scenario described, the malware that consumes a server's memory and network bandwidth, causing the server to overload and stop responding, is typically aworm. Worms are a type of malware that replicate themselves and spread to other computers across a network, often consuming significant system resources and network bandwidth in the process. Unlike viruses, which require human action to spread, worms typically exploit vulnerabilities or use automated methods to propagate without the need for user intervention.

Answer : D

In apassive attack, the attacker observes or collects information without actively interacting with the target system. Michael's action of collecting data from Bob's system without any active interaction falls under this category. Passive attacks aim to extract sensitive information without altering the system's state or causing any disruption.

Answer : A

Title II of the Electronic Communications Privacy Act (ECPA), known as the Stored Communications Act (SCA), protects the privacy of the contents of files stored by service providers and records held about the subscriber by service providers.This includes information such as subscriber names, billing records, and IP addresses1.

The correct answer isTitle II. It specifically safeguards communications held in electronic storage, particularly messages stored on computers.While Title I of the ECPA protects wire, oral, and electronic communications while in transit, Title II focuses on the privacy of stored communications3.

Answer : A

Theipconfigcommand displays the configuration of all network interfaces on a Windows system. It provides information about IP addresses, subnet masks, default gateways, DNS servers, and other network-related settings. By runningipconfig, an investigator can quickly view the status of NICs and their associated network parameters.

EC-Council Certified Security Specialist (E|CSS) documents and study guide.

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Answer : B

Joseph's analysis of packet headers to check for changes in source and destination IP addresses and port numbers during transmission is indicative of a context-based signature analysis technique. This method focuses on understanding the context or circumstances under which network data operates, rather than just the content of the packets themselves. By analyzing the changes in IP addresses and port numbers, Joseph is looking for patterns or anomalies that could suggest a security threat or an ongoing attack, such as IP spoofing or port redirection, which are common tactics in network intrusions.

Context-based signature analysis differs from other types, such as atomic and composite signature analysis, by focusing on the behavioral aspects and the situational context of the network traffic. Atomic signature analysis, for instance, relies on single, unique identifiers within a piece of malware or an attack vector, while composite signature analysis looks at multiple attributes or behaviors combined to identify a threat. Content-based signature analysis, another common technique, examines the actual payload of packets for specific malicious content or patterns known to be associated with malware.

Joseph's approach is particularly effective in identifying sophisticated attacks that may not have a known signature or a specific malicious payload but exhibit unusual patterns in how they manipulate network traffic. By understanding the context and the normal baseline of network activities, security professionals like Joseph can detect and mitigate threats that would otherwise go unnoticed with more conventional signature-based methods.

Answer : C

The scenario described involves Johnson using a list of possible passwords, which he has ranked by probability, and systematically entering them into the system to discover the correct one. This method is known as a dictionary attack, where an attacker uses a prearranged list of likely passwords---often derived from lists of common passwords or phrases---and tries them one by one. This is different from a brute force attack, which would involve trying all possible combinations, and a rainbow table attack, which uses precomputed hash values to crack encrypted passwords.Password guessing is a less systematic approach that doesn't necessarily involve a ranked list of passwords.Reference: The information provided aligns with the knowledge domains of the EC-Council Certified Security Specialist (E|CSS) program, which includes understanding various types of attacks and their methodologies as part of the ethical hacking and network defense curriculum1.

The scenario described involves Johnson, who has a list of valid customers and a list of possible passwords ranked by probability, which he uses to systematically attempt to log in to the target system. This method is known as adictionary attack. In a dictionary attack, the hacker uses a list of likely passwords---often derived from lists of common passwords or phrases---and tries them one by one. This differs from a brute force attack, which involves trying all possible combinations of characters until the correct one is found.

A dictionary attack is more efficient than brute force because it relies on the likelihood that people will use common words or phrases for passwords, making it a targeted approach based on probability rather than random attempts. Therefore, the correct answer is C, as it best describes the technique used by Johnson in the given scenario.

Answer : C

Jennifer's role as an incident responder involves handling and mitigating security incidents. In this scenario, she inspected the compromised system, gathered evidence, and disconnected it from the network to prevent further spread. Incident responders take immediate action to contain and manage security incidents.