This deep dive covers Deep Dive: DDoS (Distributed Denial of Service) within Technical Attacks for GCSE Computer Science. Revise Technical Attacks in 3.6 Fundamentals of Cyber Security for GCSE Computer Science with 18 exam-style questions and 16 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 5 of 9 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Deep Dive: DDoS (Distributed Denial of Service)
Understanding DDoS Attacks
How it works:
- Attacker compromises thousands of computers (creating a "botnet")
- All compromised computers simultaneously send requests to target server
- Server is overwhelmed by massive traffic volume
- Legitimate users can't access the service (denial of service)
DoS vs DDoS:
- DoS (Denial of Service): Attack from ONE source - easier to block
- DDoS (Distributed DoS): Attack from MULTIPLE sources - much harder to defend against
Business impact:
- Website/service becomes completely unavailable
- Lost revenue from inability to process transactions
- Reputation damage and loss of customer trust
- Cost of mitigation services and recovery
Practice questions for Technical Attacks
Which of the following best describes a brute force attack?
Explain what a DDoS attack is and how it affects a network.