CREST CPTIA Questions Answers

When a corporate network's servers are sending huge amounts of traffic to a specific website, as detected by the network's Intrusion Prevention System (IPS), this behavior is indicative of a Botnet attack. A Botnet is a network of compromised computers, often referred to as "bots," that are controlled remotely by an attacker, typically without the knowledge of the owners of the computers. The attacker can command these bots to execute distributed denial-of-service (DDoS) attacks, send spam, or conduct other malicious activities. In this scenario, the servers behaving as bots and targeting a website with large volumes of traffic suggests that they have been co-opted into a Botnet to potentially perform a DDoS attack on the website abc.xyz.References:Incident Handler (CREST CPTIA) courses and study guides discuss various types of cyber threats and attack vectors, including Botnets and their role in distributed cyber attacks.

Email Dossier is a tool designed to assist in the investigation of email incidents by analyzing and validating email headers and providing detailed information about the origin, routing, and authenticity of an email. When Michael is tasked with handling an email incident and needs to check the validity of an email received from an unknown source, Email Dossier can be utilized to trace the email's path, assess its credibility, and identify potential red flags associated with phishing or other malicious email-based attacks.

References:The CREST CPTIA curriculum emphasizes the importance of tools and techniques for email incident handling, including the use of Email Dossier for investigating suspicious emails and aiding in the response to email-based threats.

For Alice to perform qualitative data analysis, techniques such as brainstorming, interviewing, SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis, and the Delphi technique are suitable. Unlike quantitative analysis, which involves numerical calculations and statistical modeling, qualitative analysis focuses on understanding patterns, themes, and narratives within the data. These techniques enable the analyst to explore the data's deeper meanings and insights, which are essential for strategic decision-making and developing a nuanced understanding of cybersecurity threats and vulnerabilities.References:

"Qualitative Research Methods in Cybersecurity," SANS Institute Reading Room

"The Delphi Method for Cybersecurity Risk Assessment," by Cybersecurity and Infrastructure Security Agency (CISA)

True attribution in the context of cyber threats involves identifying the actual individual, group, or nation-state behind an attack or intrusion. This type of attribution goes beyond associating an attack with certain tactics, techniques, and procedures (TTPs) or a known group and aims to pinpoint the real-world entity responsible. True attribution ischallenging due to the anonymity of the internet and the use of obfuscation techniques by attackers, but it is crucial for understanding the motive behind an attack and for forming appropriate responses at diplomatic, law enforcement, or cybersecurity levels.References:

"Attribution of Cyber Attacks: A Framework for an Evidence-Based Analysis" by Jason Healey

"The Challenges of Attribution in Cyberspace" in the Journal of Cyber Policy