Intrusion Detection and Prevention Systems Quiz
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Questions and Answers

What is the purpose of an inline sensor in network security?

  • To monitor traffic on a specific network segment
  • To detect incoming attacks that could overwhelm the firewall (correct)
  • To verify the protocol stack in use
  • To act as a network-based IDPS
  • Which type of IDPS resides on a computer or appliance connected to a specific network segment?

  • Inline sensor
  • Protocol stack verification sensor
  • Network-based IDPS (correct)
  • Passive mode sensor
  • What does protocol stack verification involve?

  • Detecting malformed data packets in network traffic (correct)
  • Reporting back to the host application
  • Analyzing suspicious network traffic
  • Monitoring all traffic in real-time
  • What is the function of a monitoring port in network security?

    <p>To view all traffic passing through a network device</p> Signup and view all the answers

    What does an IDPS sensor do in passive mode?

    <p>Monitors and analyzes observed network or system traffic</p> Signup and view all the answers

    What is the primary goal of an intrusion?

    <p>To gain entry into an information system and disrupt its operations</p> Signup and view all the answers

    What is the main purpose of an intrusion detection and prevention system (IDPS)?

    <p>To detect intrusions and modify configurations to prevent them</p> Signup and view all the answers

    What differentiates a zero day vulnerability from a known vulnerability?

    <p>Zero day vulnerabilities are undisclosed and known vulnerabilities are published weaknesses</p> Signup and view all the answers

    What is the primary focus of a host-based IDPS (HIDPS)?

    <p>Monitoring activity on a specific computer or server</p> Signup and view all the answers

    What does application protocol verification involve?

    <p>Examining higher-order protocols in network traffic for unexpected behavior</p> Signup and view all the answers

    Study Notes

    Inline Sensors in Network Security

    • An inline sensor in network security is used to analyze and block traffic in real-time, providing immediate protection against security threats.

    Types of IDPS

    • A network-based IDPS (NIDPS) resides on a computer or appliance connected to a specific network segment, monitoring traffic and analyzing it for signs of unauthorized access or malicious activity.

    Protocol Stack Verification

    • Protocol stack verification involves examining the protocol headers and data to ensure they conform to the protocol's specification, helping to detect anomalies and prevent attacks.

    Monitoring Port in Network Security

    • The function of a monitoring port in network security is to allow an IDPS sensor to capture and analyze traffic from a specific network segment, providing visibility into network activity.

    IDPS Sensor in Passive Mode

    • In passive mode, an IDPS sensor monitors and analyzes traffic but does not block or alter it, allowing for detection and alerting without interrupting network operations.

    Primary Goal of an Intrusion

    • The primary goal of an intrusion is to gain unauthorized access to a system, network, or data, often for malicious purposes such as data theft or system disruption.

    Intrusion Detection and Prevention System (IDPS)

    • The main purpose of an IDPS is to detect and prevent unauthorized access, use, disclosure, modification, or destruction of computer assets, helping to protect against various types of attacks and threats.

    Zero Day Vulnerability

    • A zero day vulnerability differs from a known vulnerability in that it is a previously unknown or undisclosed vulnerability in a software or firmware, making it difficult to detect and defend against.

    Host-Based IDPS (HIDPS)

    • The primary focus of a host-based IDPS (HIDPS) is to monitor and analyze the activities and processes on a single host or device, providing real-time detection and prevention of threats.

    Application Protocol Verification

    • Application protocol verification involves examining the protocol's implementation and use to ensure it conforms to the expected protocol behavior, helping to detect and prevent attacks that exploit vulnerabilities in the application protocol.

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    Description

    Test your knowledge on intrusion detection and prevention systems, including concepts such as intrusion, IDPS, and IDS. Learn about how systems can detect and prevent unauthorized access in information systems.

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