Computer Networks 1 (CSE 231) Lecture 5 Quiz
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Questions and Answers

What is IP spoofing?

  • A protocol used to authenticate users in a cellular network
  • A type of firewall used to block malicious traffic
  • A method of encrypting data packets to prevent eavesdropping
  • A technique used to gain unauthorized access to a network by forging the IP address of a trusted host or network (correct)

    • What is packet interception?

  • A type of authentication mechanism used in cellular networks
  • A method of compressing data packets to increase network throughput
  • A technique used to capture and analyze network traffic for malicious purposes (correct)
  • A method of load balancing network traffic across multiple servers

    • What is authentication in the context of computer networks?

  • A technique used to prevent denial of service attacks
  • A method of encrypting data packets to prevent eavesdropping
  • A protocol used to establish secure communication channels in cellular networks
  • The process of verifying the identity of a user, device, or system before granting access to resources (correct)

    • What is a denial of service (DoS) attack?

    <p>An attack that attempts to make a network resource unavailable to its intended users by overwhelming it with traffic or requests</p> Signup and view all the answers

    What is the purpose of authentication in cellular networks?

    <p>To prevent unauthorized access to the network and protect user privacy</p> Signup and view all the answers

    What is the primary concern with IP spoofing attacks?

    <p>They can be used to launch distributed denial of service (DDoS) attacks</p> Signup and view all the answers

    What is the purpose of packet interception in the context of network security?

    <p>To analyze network traffic for potential threats or malicious activity</p> Signup and view all the answers

    What is the primary challenge in preventing denial of service (DoS) attacks?

    <p>Distinguishing between legitimate and malicious traffic</p> Signup and view all the answers

    What is the role of authentication in cellular networks regarding user privacy?

    <p>To prevent unauthorized access to the network and protect user data</p> Signup and view all the answers

    What is the primary defense against IP spoofing attacks?

    <p>Filtering traffic based on source IP addresses and blocking spoofed addresses</p> Signup and view all the answers

    Study Notes

    IP Spoofing

    • A technique where a malicious actor disguises their IP address to appear as a trusted source
    • The primary concern is that it allows attackers to gain unauthorized access to systems or networks

    Packet Interception

    • The act of capturing network packets as they travel between devices
    • The purpose is to monitor or intercept communication, potentially for security purposes, but also for malicious activities

    Authentication in Computer Networks

    • The process of verifying the identity of a user or device before granting access to a network or system
    • Enables secure communication and protects against unauthorized access

    Denial of Service (DoS) Attack

    • An attack that aims to make a computer system or network unavailable to legitimate users by overwhelming it with traffic
    • The primary challenge is to distinguish legitimate traffic from malicious traffic effectively

    Authentication in Cellular Networks

    • The process of verifying the identity of a mobile device and user before allowing access to the cellular network
    • Its purpose is to ensure secure communication, prevent unauthorized access, and protect user privacy

    Packet Interception in Network Security

    • Used for security monitoring and analysis, to detect and prevent malicious activity
    • It can also be used for lawful interception, such as for legal investigations

    Role of Authentication in Cellular Networks Regarding User Privacy

    • Helps protect user data from unauthorized access
    • Provides user identification for billing and service management purposes

    Primary Defense Against IP Spoofing Attacks

    • Implementing authentication mechanisms that verify the identity of the sender

    ### Primary Concern With IP Spoofing Attacks

    • Enables attackers to bypass security measures, gain unauthorized access, and potentially carry out other malicious attacks

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    Description

    Test your knowledge on the Application & Transport Layer Overview discussed in Lecture 5 of Computer Networks 1 (CSE 231). Answer 5 questions in 3 minutes to reinforce your understanding of application-layer protocols, transport-layer service models, client-server paradigm, and peer-to-peer paradigm.

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