Computer Science
Differentiate between DoS and DDoS attack.
Computing Safety & Ethics
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Answer
| DoS | DDoS |
|---|---|
| The full of DoS is Denial of Service. | The full form of DDoS is Distributed Denial of Service. |
| Denial of Service (DoS) is a scenario, wherein an attacker (Hacker) limits or stops an authorised user to access a service, device, or any such resource by overloading that resource with illegitimate requests. | Distributed Denial of Service (DDoS) is an attack, where the flooded requests come from compromised computer (Zombies) systems distributed across the globe or over a very large area. |
| If attackers carry out a DoS attack on a website, they will flood it with a very large number of network packets by using different IP addresses. | The attacker installs a malicious software known as Bot on the Zombie machines, which gives it control over these machines. |
| A DoS attack may be countered by blocking requests or network packets from a single source, so it is easier to resolve comparatively. | DDoS is very difficult to resolve, as the attack is carried from multiple distributed locations. |
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