Intrusion Detection Systems (IDS) in Computer Networks - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to describe the primary function of an IDS.

Computer Networks

An IDS primarily works by [1] network or system activities to detect malicious actions.

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Amonitoring

Bblocking

Cignoring

Dencrypting

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing IDS with a firewall that blocks traffic.

An Intrusion Detection System (IDS) monitors network or system activities to identify suspicious or malicious behavior.

2fill in blank

medium

Complete the sentence to identify a common type of IDS based on detection method.

Computer Networks

A [1] IDS detects attacks by comparing activities against known attack patterns.

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Aanomaly-based

Bheuristic

Cbehavioral

Dsignature-based

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up anomaly-based IDS with signature-based IDS.

Signature-based IDS uses known attack signatures to detect threats by matching patterns.

3fill in blank

hard

Fix the error in the description of IDS deployment location.

Computer Networks

A network-based IDS is deployed on the [1] to monitor traffic between devices.

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Aapplication server

Bend-user device

Cnetwork segment

Ddatabase

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing network-based IDS with host-based IDS placement.

Network-based IDS is placed on a network segment to monitor traffic passing through it.

4fill in blank

hard

Fill both blanks to complete the IDS alert generation condition.

Computer Networks

An IDS generates an alert when it detects [1] or [2] activities that may indicate an attack.

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Asuspicious

Bnormal

Cmalicious

Dauthorized

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting normal or authorized activities as alert triggers.

IDS alerts are triggered by suspicious or malicious activities that could be harmful.

5fill in blank

hard

Fill all three blanks to complete the IDS components description.

Computer Networks

The main components of an IDS include the [1], which collects data, the [2], which analyzes data, and the [3], which notifies administrators.

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Asensor

Banalyzer

Calert system

Dfirewall

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing firewall with IDS components.

An IDS has sensors to collect data, analyzers to process it, and alert systems to notify about threats.