Topic 2 - Demo LMS Content

3.2 Intrusion Detection and Prevention

Intrusion Detection and Prevention (IDP) is the process of monitoring and analyzing network traffic to detect and prevent unauthorized access or malicious activity. IDP systems are designed to protect networks from a variety of attacks, including denial-of-service (DoS) attacks, worms, viruses, and other forms of malware.

There are two main types of IDP systems: network-based and host-based. Network-based IDP systems monitor network traffic for suspicious activity and can be used to block traffic from specific IP addresses or ranges. Host-based IDP systems, on the other hand, are installed on individual systems and monitor system activity to detect and prevent unauthorized access or malicious activity.

IDP systems work by analyzing network traffic for specific patterns or signatures that indicate an attack. Once an attack is detected, the IDP system can take a variety of actions, such as alerting the network administrator, blocking traffic from specific IP addresses or ranges, or quarantining infected systems.

Configuration best practices for IDP systems include keeping the system up-to-date with the latest software patches, using strong passwords for system and administrative accounts, and configuring the system to log all activity for review and analysis. Additionally, regular testing and updating of IDP policies and rules is recommended to ensure that the system is detecting and preventing new and emerging threats.

Quizes for Topic 2:

Single
Choice

Multiple
Choice

"Free"
Choice

Sorting
Choice

Matrix
Sorting

Fill in the
Blank

Assessment
(Survey)

Which of the following best describes intrusion detection and prevention?

Software used to prevent viruses and malware from infecting a network

Tools used to detect and prevent attacks on a network✅

Devices used to encrypt data in transit

Methods used to detect and prevent unauthorized physical access to a building

What are the two main types of intrusion detection and prevention systems?

Network-based and host-based✅

Firewall and antivirus software

Encryption and decryption software

Backup and recovery software

What is the purpose of intrusion detection and prevention systems?

To detect and respond to cyber threats in real time✅

To encrypt sensitive data on a network

To block all incoming network traffic

To create backup copies of data

Which of the following is a best practice for configuring intrusion detection and prevention systems?

Disable all security measures to avoid conflicts

Use default settings for ease of configuration

Configure systems to allow all traffic by default

Implement a whitelist approach to allow only necessary traffic✅

What is the difference between intrusion detection and intrusion prevention?

Intrusion detection systems only alert when an attack is detected, while intrusion prevention systems block the attack.✅

Intrusion prevention systems only alert when an attack is detected, while intrusion detection systems block the attack.

There is no difference between the two.

Both intrusion detection and intrusion prevention systems only alert when an attack is detected.

What is intrusion detection and prevention?

A software that blocks all network traffic

A system that monitors network traffic for signs of unauthorized access or malicious activity✅

A tool that automatically configures firewalls

What are the two types of intrusion detection and prevention systems?

Network-based and host-based✅

Cloud-based and client-based

Server-based and database-based

How do intrusion detection and prevention systems work?

By blocking all network traffic

By scanning for known malware

By monitoring network traffic for signs of malicious activity✅

What are some configuration best practices for intrusion detection and prevention systems?

Keep the system up to date with the latest security patches✅

Monitor the system logs for signs of suspicious activity✅

Set up rules and alerts based on specific security policies✅

Intrusion detection and prevention systems are designed to detect and prevent ______ attacks.

malicious
accidental
environmental

Hint:

Any of the following: malicious, accidental, environmental

There are two main types of intrusion detection and prevention systems: host-based and ______ based.

network
cloud
application

Hint:

Any of the following: network, cloud, application

Intrusion detection systems (IDS) are designed to detect attacks, while intrusion prevention systems (IPS) are designed to ______ attacks.

prevent
respond to
analyze

Hint:

Any of the following: prevent, respond to, analyze

Intrusion detection and prevention systems work by monitoring network traffic and looking for ______ behavior.

abnormal
normal
standard

Hint:

Any of the following: abnormal, normal, standard

Configuration best practices for intrusion detection and prevention systems include keeping them updated with the latest ______ and monitoring them regularly.

patches
software
hardware

Hint:

Any of the following: patches, software, hardware

Sort the following types of IDP systems from most common to least common.

Host-based IDP

Network-based IDP

Hint:

Host-based IDP
Network-based IDP

Sort the following best practices for configuring IDP systems from most important to least important.

Keeping the system up-to-date with the latest software patches

Using strong passwords for system and administrative accounts

Configuring the system to log all activity for review and analysis

Hint:

Keeping the system up-to-date with the latest software patches
Using strong passwords for system and administrative accounts
Configuring the system to log all activity for review and analysis

Sort the following actions an IDP system can take once an attack is detected from least severe to most severe.

Alerting the network administrator

Quarantining infected systems

Blocking traffic from specific IP addresses or ranges

Hint:

Alerting the network administrator
Quarantining infected systems
Blocking traffic from specific IP addresses or ranges

Sort the following types of attacks that IDP systems can protect against from most severe to least severe.

Denial-of-service (DoS) attacks

Worms

Viruses

Other forms of malware

Hint:

Denial-of-service (DoS) attacks
Worms
Viruses
Other forms of malware

Sort the following types of IDP systems based on where they are installed from most common to least common.

Network-based IDP

Host-based IDP

Hint:

Network-based IDP
Host-based IDP

Pair the following types of intrusion detection and prevention systems with their descriptions:

Network-based systems

Host-based systems

Intrusion detection systems

Intrusion prevention systems

Detects threats at the network level

Detects threats at the host level

Hint:

Network-based systems ➢ Host-based systems
Intrusion detection systems ➢ Intrusion prevention systems
Detects threats at the network level ➢ Detects threats at the host level

Match the type of intrusion detection and prevention system with its corresponding advantages:

Network-based systems

Host-based systems

Monitors network traffic for malicious activity

Monitors system activity for malicious activity

Can detect attacks before they reach the target

Can detect attacks even when encrypted

Can provide faster detection and response times

Can identify insider threats more effectively

Hint:

Network-based systems ➢ Host-based systems
Monitors network traffic for malicious activity ➢ Monitors system activity for malicious activity
Can detect attacks before they reach the target ➢ Can detect attacks even when encrypted
Can provide faster detection and response times ➢ Can identify insider threats more effectively

Match the following statements with the appropriate configuration best practice:

Regularly update and patch systems

Minimize the number of open ports

Implement strong access controls

Monitor for signs of unauthorized access

Use intrusion detection and prevention systems

Limit the use of unnecessary services

Hint:

Regularly update and patch systems ➢ Minimize the number of open ports
Implement strong access controls ➢ Monitor for signs of unauthorized access
Use intrusion detection and prevention systems ➢ Limit the use of unnecessary services

Match the following types of intrusion detection and prevention systems with their descriptions:

Signature-based systems

Anomaly-based systems

Matches incoming traffic with a database of known threats

Learns what normal traffic looks like and flags deviations

Can be less resource-intensive

Can detect new or unknown threats

Can have a higher rate of false positives

Can have a higher rate of false negatives

Hint:

Signature-based systems ➢ Anomaly-based systems
Matches incoming traffic with a database of known threats ➢ Learns what normal traffic looks like and flags deviations
Can be less resource-intensive ➢ Can detect new or unknown threats
Can have a higher rate of false positives ➢ Can have a higher rate of false negatives

Match the following statements with the appropriate intrusion detection and prevention system:

Can detect zero-day attacks

Anomaly-based systems

Can detect known patterns of malicious behavior

Signature-based systems

Can be deployed on individual hosts

Host-based systems

Can be deployed at network perimeter

Network-based systems

Can prevent attacks from occurring

Intrusion prevention systems

Hint:

Can detect zero-day attacks ➢ Anomaly-based systems
Can detect known patterns of malicious behavior ➢ Signature-based systems
Can be deployed on individual hosts ➢ Host-based systems
Can be deployed at network perimeter ➢ Network-based systems
Can prevent attacks from occurring ➢ Intrusion prevention systems

Fill in the blank:

Intrusion detection and prevention systems are designed to detect and prevent {[malicious] [accidental] [environmental] } attacks.

Hint:

Any of the following: Any of the following: malicious, accidental, environmental

Fill in the blank:

There are two main types of intrusion detection and prevention systems: host-based and {[network] [cloud] [application] } based.

Hint:

Any of the following: network, cloud, application

Fill in the blank:

Intrusion detection systems (IDS) are designed to detect attacks, while intrusion prevention systems (IPS) are designed to {[prevent] [respond to] [analyze] } attacks.

Hint:

Any of the following: prevent, respond to, analyze

Fill in the blank:

Intrusion detection and prevention systems work by monitoring network traffic and looking for {[abnormal] [normal] [standard] } behavior.

Hint:

Any of the following: abnormal, normal, standard

Fill in the blank:

Configuration best practices for intrusion detection and prevention systems include keeping them updated with the latest {[patches] [software] [hardware] } and monitoring them regularly.

Hint:

Any of the following: patches, software, hardware

How knowledgeable do you feel about intrusion detection and prevention?

Not at all knowledgeable { [1] [2] [3] [4] [5] } Extremely knowledgeable

How important do you think intrusion detection and prevention is for cybersecurity?

Not at all important { [1] [2] [3] [4] [5] } Extremely important

Have you ever used an intrusion detection or prevention system before?

{ [Yes] [No] }

How confident are you in your ability to configure an intrusion detection or prevention system?

Not at all confident { [1] [2] [3] [4] [5] } Extremely confident

How frequently do you perform security audits and tests to evaluate the effectiveness of your intrusion detection and prevention system?

{ [Never] [Rarely] [Sometimes] [Frequently] [Always] }