Questions and Answers
What is the maximum allowable downtime for a system with a 99.999% uptime goal per year?
How does IMAP differ from POP in terms of email message management?
What is the primary function of the Tor network?
What type of data does NetFlow primarily collect?
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Which tool is characterized as a command-line interface packet analyzer?
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Which statement about the tap device used in networks is correct?
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What is a characteristic of a Trojan horse in network security?
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What technique is commonly used in social engineering attacks?
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What is the primary purpose of implementing VLANs on a network?
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What type of test evaluates the risk posed by vulnerabilities to an organization?
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Which strategy aims to shift some of the identified risk to other parties?
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What is a network tap used for?
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Which attack method inundates a target with excessive data to cause disruption?
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What kind of attacks use electronic dictionaries to crack passwords?
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Study Notes
Trojan Horses
- A Trojan horse disguises malicious actions as legitimate software or programs.
Denial of Service (DoS) Attacks
- DoS attacks inundate a specific host or network device interface with excessive data, overwhelming its resources.
Password Attacks
- Electronic dictionaries are utilized in password attacks to systematically guess and learn user passwords.
Buffer Overflow Attacks
- These attacks exploit memory buffers by sending excessive information, potentially causing the system to crash.
Social Engineering Techniques
- Common tactic involves fraudulent emails that appear legitimate, tricking recipients into installing malware or revealing personal and financial information.
Purpose of VLANs
- Virtual Local Area Networks (VLANs) separate user traffic based on functions, project teams, or applications regardless of physical locations.
Network Security Assessments
- Risk analysis is performed to evaluate potential threats, likelihood of attacks, and impacts of successful exploits on the organization.
Risk Response Strategies
- Risk avoidance: Cease risky activities.
- Risk reduction: Implement measures to lower vulnerability.
- Risk sharing: Transfer some risk to other parties.
- Risk retention: Accept the risk and its consequences.
Network TAP
- A network tap captures traffic for network monitoring and operates as a passive device that splits traffic without altering it.
Uptime Goals in SOCs
- A goal of 99.999% uptime translates to a maximum allowable downtime of approximately 5.256 minutes per year.
IMAP vs. POP for Email Retrieval
- IMAP allows users to download copies of messages to their client while keeping them on the server until deletion, unlike POP which removes them.
Purpose of Tor
- Tor is a software platform and network offering anonymous browsing through a decentralized network of peer-to-peer routers.
NetFlow vs. Wireshark
- Wireshark captures full packet data while NetFlow captures only metadata regarding data flows, providing different levels of detail.
tcpdump Tool
- tcpdump is a command-line interface packet analyzer that captures full data packets, while Wireshark offers a graphical user interface (GUI) for packet analysis.
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Description
Test your knowledge on various network security threats such as Trojan horses, denial of service attacks, and password cracking techniques. This quiz will help solidify your understanding of how different attacks operate and how they can compromise network security.
