Question 1

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

Accepted Answer

Switched networks can make it difficult for intrusion detection and prevention systems to monitor all traffic, as switches limit the visibility of network traffic to only the devices involved in the communication.

Question 2

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

Accepted Answer

HIDPS (Host-based Intrusion Detection and Prevention System) can analyze and monitor the activity at the host level and recognize attacks that may not be visible from the network level alone. Therefore, it is capable of detecting local events on the host system and detecting attacks that may be missed by network-based IDPS (Intrusion Detection and Prevention System).

Question 3

HIDPSs are also known as system integrity verifiers.

Accepted Answer

HIDPSs or Host-based Intrusion Detection and Prevention Systems are designed to monitor and protect the integrity of a system by detecting and preventing unauthorized access or changes. They are also referred to as system integrity verifiers.

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

The selection of IDPS and other security tools should always be based on the specific needs, goals, and constraints of the organization, as well as its culture. For example, if the organization values open communication and flexibility, it may require an IDPS that allows for customization and rule tweaking by multiple stakeholders. On the other hand, if the organization is more risk-averse, it may need an IDPS that is more rigid and pre-configured to minimize false positives/negatives. Therefore, it is important to take organizational factors into consideration when selecting security tools.

Question 5

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

Accepted Answer

Intrusion detection and prevention systems are designed to monitor and analyze system events and user behaviors in order to identify and prevent potential security breaches. These systems use a variety of techniques, including signature-based detection, anomaly detection, and behavioral analysis, to identify suspicious activity and alert security administrators to potential threats. By providing real-time monitoring and analysis, intrusion detection and prevention systems can help organizations maintain the security and integrity of their IT systems and data.

Question 6

An HIDPS can monitor system logs for predefined events.

Accepted Answer

HIDPS (Host-based Intrusion Detection and Prevention System) can monitor system logs for predefined events by using predefined rules and alerts to detect and respond to potential security incidents.

Question 7

IDPS responses can be classified as active or passive.

Accepted Answer

IDPS responses can be classified as either active or passive. Active responses involve actively taking steps to prevent, block, or mitigate attacks (such as terminating a connection or blocking an IP address), while passive responses involve simply logging and reporting the detected attacks for further analysis.

Question 8

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 9

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 of what is described in the statement. It is when an IDPS system alerts or reacts to an event that is not actually an attack, resulting in a "false alarm."

Question 10

A fully distributed IDPS control strategy is an IDPS implementation approach in which all controlfunctions are applied at the physical location of each IDPS component.

Accepted Answer

In a fully distributed IDPS control strategy, all control functions are implemented at the physical location of each IDPS component, making it a true statement.

Question 11

NIDPSs can reliably ascertain whether an attack was successful.

Accepted Answer

Network Intrusion Detection and Prevention Systems (NIDPSs) can detect and prevent potential attacks but cannot always determine if an attack was successful, as they primarily monitor network traffic and lack visibility into the final impact on the target system.

Question 12

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. The SNMP trap functions give devices the ability to send messages to the SNMP management console when certain thresholds are crossed. These notifications can be positive (indicating that a certain condition has been met or exceeded) or negative (indicating that a certain condition has fallen below the expected threshold).

Question 13

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

Accepted Answer

IDPS vendors may target users with varying levels of technical and security expertise depending on the features and functionalities of their solutions. Some IDPS vendors may offer more advanced and complex features for users with higher technical expertise, while others may provide simpler and more user-friendly solutions for those with less technical knowledge.

Question 14

An 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

An HIDPS (Host-based Intrusion Detection and Prevention System) is designed to monitor and analyze the internals of a computing system rather than network traffic, so it is not optimized for detecting multihost scanning or scanning of non-host network devices like routers or switches.

Question 15

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

Accepted Answer

An anomaly-based IDPS collects statistical summaries by observing traffic that is known to be normal and then compares future traffic against the established baseline to identify abnormal behavior.

Question 16

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

Accepted Answer

A passive IDPS response involves logging the alert and notifying administrators, but does not take automatic action to mitigate the threat.

Question 17

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

It is important to consider the organizational environment in technical, physical, and political terms when selecting an IDPS that best meets the organization's needs. This includes understanding the types of threats the organization faces, the technical infrastructure in place, and any political or cultural factors that may impact the implementation and use of an IDPS.

Question 18

An IDPS can be configured to dial a phone number and produce an alphanumeric page or other type of signal or message.

Accepted Answer

IDPS (Intrusion Detection and Prevention System) often have the capability to communicate alerts through different methods like email, SMS, phone call, or pager. Therefore, it can be configured to dial a phone number and produce an alphanumeric page or message.

Question 19

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

Accepted Answer

DNS cache poisoning is a real threat where valid packets exploit poorly configured DNS servers to inject false information and corrupt the servers' answers to routine DNS queries from other systems on the network.

Question 20

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 evading or bypassing the IDPS, not a false attack stimulus.

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