Why understanding attacks enables defense in Computer Networks - See It in Action

Why Understanding Attacks Enables Defense

📖 Scenario: You are part of a small company's IT team. Your job is to help protect the company's computer network from bad people who try to break in and cause harm.To do this well, you need to understand the kinds of attacks these bad people use. This knowledge helps you build better defenses.

🎯 Goal: Build a simple list of common attack types, set a threshold for which attacks are most dangerous, filter the list to only include those dangerous attacks, and finally, add a note explaining why knowing these attacks helps protect the network.

📋 What You'll Learn

Create a list called attack_types with these exact strings: 'Phishing', 'Malware', 'DDoS', 'Man-in-the-Middle', 'SQL Injection'

Create a variable called danger_threshold and set it to 3

Create a dictionary called attack_danger_levels with these exact pairs: 'Phishing': 2, 'Malware': 4, 'DDoS': 5, 'Man-in-the-Middle': 3, 'SQL Injection': 4

Create a list called dangerous_attacks that includes only attacks from attack_types whose danger level in attack_danger_levels is greater than or equal to danger_threshold

Create a string variable called defense_note with the exact text: 'Understanding attacks helps build strong defenses.'

💡 Why This Matters

🌍 Real World

Knowing common cyber attacks helps IT teams protect networks by focusing on the most dangerous threats.

💼 Career

Cybersecurity professionals must understand attack methods to design effective defenses and keep systems safe.

1

Create the list of attack types

Create a list called attack_types with these exact strings: 'Phishing', 'Malware', 'DDoS', 'Man-in-the-Middle', 'SQL Injection'

Computer Networks

# Create the list attack_types with the specified attack names
# Your code here

Need a hint?

Use square brackets [] to create a list and include all attack names as strings inside.

2

Set the danger threshold

Create a variable called danger_threshold and set it to the number 3

Computer Networks

attack_types = ['Phishing', 'Malware', 'DDoS', 'Man-in-the-Middle', 'SQL Injection']
# Create danger_threshold and set it to 3
# Your code here

Need a hint?

Just assign the number 3 to the variable named danger_threshold.

3

Create the attack danger levels dictionary

Create a dictionary called attack_danger_levels with these exact pairs: 'Phishing': 2, 'Malware': 4, 'DDoS': 5, 'Man-in-the-Middle': 3, 'SQL Injection': 4

Computer Networks

attack_types = ['Phishing', 'Malware', 'DDoS', 'Man-in-the-Middle', 'SQL Injection']
danger_threshold = 3
# Create attack_danger_levels dictionary with specified pairs
# Your code here

Need a hint?

Use curly braces {} to create a dictionary with attack names as keys and their danger levels as values.

4

Filter dangerous attacks and add defense note

Create a list called dangerous_attacks that includes only attacks from attack_types whose danger level in attack_danger_levels is greater than or equal to danger_threshold. Then create a string variable called defense_note with the exact text: 'Understanding attacks helps build strong defenses.'

Computer Networks

attack_types = ['Phishing', 'Malware', 'DDoS', 'Man-in-the-Middle', 'SQL Injection']
danger_threshold = 3
attack_danger_levels = {'Phishing': 2, 'Malware': 4, 'DDoS': 5, 'Man-in-the-Middle': 3, 'SQL Injection': 4}
# Create dangerous_attacks list filtering by danger_threshold
# Create defense_note string with the given text
# Your code here

Need a hint?

Use a list comprehension to filter attacks. Then assign the exact text to defense_note.