SESK: Stuff Everyone Should Know · sesk.info/aplus-ddos-many-hosts
What makes a denial-of-service attack 'distributed'?
It uses numerous hosts to attack.
- It targets only distributed databases
- It encrypts files across drives
- It uses many hosts to perform the attack ✔
Why: A DoS attack prevents authorized access to resources or delays time-critical work. A DDoS does this with many hosts at once, so blocking one address does not help.
Huh, didn't know that: CompTIA's A+ objectives list DDoS alongside evil twin, on-path and brute-force attacks.
A DDoS is the world's worst flash mob.
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References
Answer: It uses many hosts to perform the attack. A DoS attack prevents authorized access to resources or delays time-critical work. A DDoS does this with many hosts at once, so blocking one address does not help.
- Distributed denial of service, NIST CSRC glossary csrc.nist.gov/glossary/term/distributed_denial_of_service
A denial of service technique that uses numerous hosts to perform the attack.
Checked 2026-10-10. - Denial of service, NIST CSRC glossary csrc.nist.gov/glossary/term/denial_of_service
The prevention of authorized access to resources or the delaying of time-critical operations.
Checked 2026-10-10. - CompTIA A+ Core 2 (220-1202) Exam Objectives v1.1 lecbyo.files.cmp.optimizely.com/download/84764f7a85ba11ef87e9da1cab964337
Distributed denial of service (DDoS)
Checked 2026-10-10.
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