DoS and DDoS attacks in Computer Networks - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to define a DoS attack.

Computer Networks

A DoS attack aims to [1] a network or service to make it unavailable to users.

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Astrengthen

Bmonitor

Cdisrupt

Dencrypt

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing DoS with improving or protecting a service.

Thinking DoS attacks encrypt data.

A DoS (Denial of Service) attack disrupts a network or service, making it unavailable to legitimate users.

2fill in blank

medium

Complete the sentence to explain what differentiates a DDoS attack from a DoS attack.

Computer Networks

A DDoS attack uses multiple [1] to overwhelm the target, unlike a DoS attack which uses a single source.

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Asources

Bcomputers

Cattackers

Dnetworks

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing the number of attackers with the number of sources.

Thinking DDoS uses only one computer.

A DDoS (Distributed Denial of Service) attack uses many sources to flood the target, making it harder to block than a single-source DoS attack.

3fill in blank

hard

Fix the error in the statement about DoS attack methods.

Computer Networks

One common DoS attack method is the [1] flood, which overwhelms a target with fake connection requests.

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ASYN

BPing

CMalware

DPhishing

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing SYN flood with Ping flood.

Thinking phishing or malware are DoS attack methods.

The SYN flood attack sends many fake connection requests to exhaust the target's resources.

4fill in blank

hard

Fill both blanks to complete the description of a defense technique against DDoS attacks.

Computer Networks

To defend against DDoS attacks, networks often use [1] to filter traffic and [2] to distribute traffic load.

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Afirewalls

Bload balancers

Cantivirus

Dencryption

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing antivirus with network traffic filtering.

Thinking encryption helps distribute traffic load.

Firewalls filter unwanted traffic, and load balancers distribute traffic to prevent overload during DDoS attacks.

5fill in blank

hard

Fill all three blanks to complete the explanation of a botnet in DDoS attacks.

Computer Networks

A botnet is a network of [1] infected with malware, controlled by an attacker to [2] DDoS attacks, often without the [3] knowledge.

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Acomputers

Blaunch

Cowners'

Dservers

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing servers with general computers in botnets.

Thinking owners are aware of the botnet control.

Botnets consist of infected computers controlled remotely to launch DDoS attacks, usually without the owners' knowledge.