Ethical Hacking - Network Security Quiz
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Questions and Answers

Which of the following statements about user privileges is accurate?

  • It is stored in the database of the web application. (correct)
  • It is determined by the network protocol used.
  • It can be modified only during runtime.
  • It affects all clients of the web application.

    • What can be accurately determined about a target system during an ethical hacking assessment?

  • The network protocol configuration.
  • The number of active users connected.
  • The amount of bandwidth usage.
  • The operating system running on the target. (correct)

    • Which command option is used to perform a ping scan in a network?

  • --sC
  • --sP (correct)
  • --sT
  • --sL

    • When evaluating a target's status, which of the following is true?

    <p>Target is alive/up when it responds to ping.</p> Signup and view all the answers

    In the context of ethical hacking assessments, which of the following could be valid command options used in scanning?

    <p>--sV</p> Signup and view all the answers

    Which of the following statements about the IP protocol is correct?

    <p>IP protocol uses connection-less routing.</p> Signup and view all the answers

    What characterizes direct delivery between hosts in a network?

    <p>Direct delivery is achieved when both hosts reside on the same network.</p> Signup and view all the answers

    Which letter corresponds to the host component in the given binary representation '10010000 00010000 11000000 00010000'?

    <p>H</p> Signup and view all the answers

    What defines an autonomous system in networking terms?

    <p>A set of routers and networks managed by a single organization.</p> Signup and view all the answers

    Which of the following is NOT a recognized type of routing protocol?

    <p>Using TCP 2-way handshake protocol.</p> Signup and view all the answers

    What type of address allows data packets to be sent to all devices in a network?

    <p>Broadcast address.</p> Signup and view all the answers

    In which scenario would indirect delivery occur?

    <p>Packet is sent from one router to another until it reaches the destination.</p> Signup and view all the answers

    What does an interior routing protocol entail?

    <p>All routers are in the same autonomous system.</p> Signup and view all the answers

    Which method involves hiding secret information within an executable file?

    <p>Hiding secret information within an executable file</p> Signup and view all the answers

    What does a low-cost alternative to encryption and decryption generally refer to?

    <p>Simple obfuscation techniques</p> Signup and view all the answers

    Biometrics that relate to human behavior are primarily focused on which aspect?

    <p>Patterns of behavior and actions</p> Signup and view all the answers

    What is the maximum data rate representation for a typical data transmission?

    <p>1 Mbits</p> Signup and view all the answers

    Which of the following describes an attack that destroys stored information?

    <p>An attack modifying files or settings</p> Signup and view all the answers

    Which type of denial-of-service attack uses stimulated ICMP packets?

    <p>Smurf denial-of-service attack</p> Signup and view all the answers

    What characterizes a SYN flooding attack?

    <p>Exploiting the TCP handshake process</p> Signup and view all the answers

    Which statement about a Botnet is correct?

    <p>A Botnet consists of enslaved devices controlled by the attacker</p> Signup and view all the answers

    What are some methods to enhance network security?

    <p>Implement a firewall system</p> Signup and view all the answers

    Which of the following tools can be used for conducting network attacks?

    <p>LOIC tool</p> Signup and view all the answers

    What strategy should be implemented to protect against side-channel attacks?

    <p>Obfuscate data in memory</p> Signup and view all the answers

    Which of the following describes a type of invasive attack?

    <p>Physical access attack</p> Signup and view all the answers

    What information might be required for some algorithms to be compromised?

    <p>Knowledge of the implementation specifics</p> Signup and view all the answers

    What factors can indicate side-channel vulnerabilities in a device?

    <p>Electromagnetic emissions</p> Signup and view all the answers

    Which of the following methods is NOT considered for securing data?

    <p>Neglecting user training on security</p> Signup and view all the answers

    What is commonly observed when analyzing time taken for computations in algorithms?

    <p>Time differences may reveal vulnerabilities</p> Signup and view all the answers

    What is the primary purpose of analyzing network activity through network traffic capture?

    <p>To analyze network activity</p> Signup and view all the answers

    Which statements about Burp Suite are true?

    <p>Burp Suite is primarily used for sniffing and password attacks on web applications</p> Signup and view all the answers

    What is the function of manipulating and reissuing packets in network analysis?

    <p>To analyze responses from those packets</p> Signup and view all the answers

    Which of the following strategies best helps in preventing spoofing attacks within a network?

    <p>Using static IP addresses and ARP tables</p> Signup and view all the answers

    Which of the following is NOT a physical security threat to network access?

    <p>Password guessing</p> Signup and view all the answers

    Which tool is specifically designed for creating social engineering attacks?

    <p>SETToolkit</p> Signup and view all the answers

    Which protocols offer secure communication over networks?

    <p>SSH and SSL</p> Signup and view all the answers

    What type of attack involves tricking users into providing sensitive information through deceptive emails?

    <p>Phishing</p> Signup and view all the answers

    Study Notes

    Ethical Hacking - Network Security

    • IP protocol uses connection-less routing, meaning each packet is treated independently.
    • Direct delivery occurs when the source and destination hosts are on the same network, allowing direct packet exchanges without router involvement.
    • Indirect delivery involves multiple routers to reach the destination host when source and destination reside in different networks.
    • Autonomous systems are groups of routers and networks managed by a single organization.
    • Interior routing protocols are used within an autonomous system, while exterior routing protocols are used between different autonomous systems.
    • A broadcast address is a specialized address used in IP networks to send a packet to all devices on the local network.
    • Hiding secret information within an executable file and encrypting an image file for restricted access are examples of Steganography.
    • Biometrics that relate to human behavior, like voice recognition and gait analysis are known as behavioral biometrics.
    • A Smurf denial-of-service attack uses IP spoofing to flood the victim's network with ICMP echo requests from multiple compromised hosts.
    • A Botnet is a group of compromised computers controlled by an attacker, acting as a network of zombie computers to carry out malicious activities.
    • DNS resolution involves a series of requests and responses between a client computer and DNS servers to translate domain names into IP addresses.
    • Pretty Good Privacy (PGP) is a popular encryption program used for secure email communication and data encryption.

    Ethical Hacking – Network Sniffing and Attack Mitigation

    • Network sniffing is the process of capturing network traffic to analyze and potentially identify vulnerabilities or sensitive information.
    • Burp Suite is a popular tool used for sniffing network traffic and performing password attacks on web applications.
    • Using dynamic IP addresses and ARP entries can make it difficult for attackers to establish persistent network connections.
    • Impersonation, piggybacking, and shoulder surfing are social engineering techniques used to gain unauthorized access to systems or information.
    • SEToolkit is a suite of penetration testing tools that includes various modules for vulnerability assessment and exploit development.
    • SSH and SSL protocols provide secure communication channels for sensitive data transmission over the internet.
    • Implementing measures like server replication, bandwidth increase, and multi-layered security solutions are essential for mitigating DoS attacks.
    • The Hping3 tool can be used to perform network scans and send crafted packets to probe for potential vulnerabilities.
    • Hydra and Crunch are tools used for brute-force password attacks, attempting to guess passwords by trying numerous combinations.

    Ethical Hacking – Side-Channel Attacks and Mitigation

    • Side-channel attacks exploit information leaked during the execution of cryptographic algorithms, like timing and power consumption, to extract secret keys or sensitive data.
    • Techniques like obfuscating data in registers, adding defensive measures, and using physical unclonable functions help mitigate side-channel attacks.
    • Power analysis techniques like Simple Power Analysis (SPA) and Differential Power Analysis (DPA) are used to study changes in power consumption during computation to infer secret information.
    • The timing difference in execution times between different paths of conditional statements is a potential vulnerability that can be exploited in timing attacks.
    • Cross-site scripting (XSS) occurs when malicious scripts are injected into a website to steal user data or manipulate the user's interaction with the website.

    Ethical Hacking – Network Scanning and Vulnerability Assessment

    • Network scanning involves probing target systems for information about their status, running services, operating systems, and potential vulnerabilities.
    • Nmap is a versatile network scanning tool used for host discovery, service detection, operating system fingerprinting, and vulnerability assessment.
    • ICMP Echo and ICMP Non-Echo requests are used to determine if a host is alive or down.
    • TCP and UDP sweeps are used to identify open ports on a target host.
    • The Nmap parameter -sV (version scan) is used to identify the versions of services running on a target system.
    • The Nmap parameter -O (operating system detection) is used to identify the operating system running on a target system.
    • The Nmap parameter -Pn (no ping) instructs Nmap to avoid sending ICMP ping requests, useful for stealthy scans or when the target system may be blocking ICMP traffic.
    • The Nmap parameter -sL (list targets) is used to display a list of targets specified in a file.
    • The Nmap parameter -sU (UDP scan) is used to scan for open UDP ports on a target system.

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    Ethical Hacking Past Paper PDF Week 1 & 2

    Description

    Test your knowledge on network security concepts related to ethical hacking. This quiz covers IP protocols, routing techniques, autonomous systems, and more. Assess your understanding of key security practices in network environments.

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