Question 1

Intrusion detection and prevention systems perform monitoring and analysis of system events and user behaviors.

Accepted Answer

Intrusion detection and prevention systems (IDPS) are designed to monitor and analyze system events and user behaviors to detect potential security threats and take action to prevent them. This includes monitoring network traffic, system logs, and user activity to identify suspicious behavior and alert security personnel or automate response actions. Therefore, the statement is true.

Question 2

All IDPS vendors target users with the same levels of technical and security expertise.

Accepted Answer

IDPS vendors may have different target audiences based on their products or services. Some may target users with advanced technical and security expertise, while others may target users with more basic knowledge and experience.

Question 3

The statistical anomaly-based IDPS collects statistical summaries by observing traffic that is known to be normal.

Accepted Answer

The statement accurately describes the functioning of a statistical anomaly-based IDPS. It observes normal traffic and collects statistical summaries to establish a baseline of typical network behavior. It can then analyze incoming traffic and detect any deviations from the baseline.

Question 4

Your organization's operational goals,constraints,and culture should not affect the selection of the IDPS and other security tools and technologies to protect your systems.

Accepted Answer

Your organization's operational goals, constraints, and culture should be taken into consideration when selecting an IDPS and other security tools and technologies. The chosen solutions should align with the organization's needs and objectives, and be feasible to implement within any resource or budgetary constraints. Additionally, the organization's culture can affect the implementation and adoption of these security measures, so it should also be considered when selecting and implementing them.

Question 5

The Simple Network Management Protocol contains trap functions,which allow a device to send a message to the SNMP management console indicating that a certain threshold has been crossed,either positively or negatively.

Accepted Answer

This statement is true. Trap functions in SNMP allow a device to send notifications to the SNMP management console in the event of certain events, such as the crossing of a threshold.

Question 6

NIDPSs can reliably ascertain if an attack was successful or not.

Accepted Answer

Network Intrusion Detection and Prevention Systems (NIDPSs) can detect and prevent potential threats, but they cannot always determine if an attack was successful, as they primarily focus on identifying suspicious patterns and behaviors rather than confirming the outcome of an attack.

Question 7

A false positive is the failure of an IDPS system to react to an actual attack event.

Accepted Answer

A false positive is actually the opposite - it is when an IDPS system incorrectly identifies normal behavior as an attack and triggers a response.

Question 8

A HIDPS is optimized to detect multihost scanning,and it is able to detect the scanning of non-host network devices,such as routers or switches.

Accepted Answer

The answer of A HIDPS is optimized to detect multihost...

Question 9

In DNS cache poisoning,valid packets exploit poorly configured DNS servers to inject false information to corrupt the servers' answers to routine DNS queries from other systems on the network.

Accepted Answer

DNS cache poisoning is a real threat that occurs when attackers send valid packets to exploit poorly configured DNS servers to inject false information into the cache resulting in incorrect answers to future DNS queries made by other systems on the network.

Question 10

A passive response is a definitive action automatically initiated when certain types of alerts are triggered.

Accepted Answer

A passive response does not involve automatic actions; it typically involves monitoring or logging without taking direct action.

Question 11

In order to determine which IDPS best meets an organization's needs,first consider the organizational environment in technical,physical,and political terms.

Accepted Answer

Before selecting an IDPS, it is important to analyze the organizational environment in technical, physical, and political terms to ensure that the chosen IDPS meets the specific needs and requirements of the organization.

Question 12

An HIDPS can detect local events on host systems and also detect attacks that may elude a network-based IDPS.

Accepted Answer

HIDPS (Host-based Intrusion Detection and Prevention System) can monitor and analyze events on the host system itself rather than relying solely on network traffic. This allows it to detect attacks that may not involve network traffic and may not be visible to a network-based IDPS. Therefore, the statement is true.

Question 13

IDPS responses can be classified as active or passive.

Accepted Answer

IDPS responses can be classified as active or passive based on the actions taken by the system to prevent or mitigate an attack. Active responses include actions such as blocking, quarantine, and terminating connections, while passive responses include actions such as sending alerts and logging events for future analysis.

Question 14

Intrusion detection consists of procedures and systems that identify system intrusions and take action when an intrusion is detected.

Accepted Answer

The answer of Intrusion detection consists of procedures and systems...

Question 15

A HIDPS can monitor systems logs for predefined events.

Accepted Answer

HIDPS (Host-based Intrusion Detection and Prevention System) can monitor system logs for predefined events such as failed login attempts, suspicious network traffic, modification of critical files, etc. It alerts the system administrators if any suspicious activity is detected.

Question 16

An IDPS can be configured to dial a phone number and produce an alphanumeric page or a modem noise.

Accepted Answer

An IDPS (Intrusion Detection and Prevention System) can be configured to alert the security team by dialing a phone number and producing an alphanumeric page or a modem noise.

Question 17

Intrusion detection and prevention systems can deal effectively with switched networks.

Accepted Answer

The answer of Intrusion detection and prevention systems can deal...

Question 18

The process by which attackers change the format and/or timing of their activities to avoid being detected by the IDPS is known as a false attack stimulus.

Accepted Answer

The process by which attackers change the format and/or timing of their activities to avoid being detected by the IDPS is known as an evasion technique. A false attack stimulus is a simulated attack used to test the effectiveness of an IDPS.

Question 19

A fully distributed IDPS control strategy is the opposite of the centralized strategy.

Accepted Answer

A fully distributed IDPS control strategy involves distributing the control functions among various sensors and agents, whereas a centralized strategy involves a single control center managing all the sensors and agents centrally. So, these two strategies are opposite to each other.

Question 20

HIDPSs are also known as system integrity verifiers.

Accepted Answer

HIDPSs (Host-based Intrusion Detection and Prevention Systems) are indeed known as system integrity verifiers, as they are designed to monitor and protect the integrity of a system by detecting and/or preventing unauthorized changes or threats to the system.

Quiz 7: Security Technology: Intrusion Detection and Prevention Systems, and Other Security Tools