Question

What are denial of service and sweeper attack

Answer 1

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DEFINITION

denial-of-service attack

Posted by: Margaret Rouse

WhatIs.com

Contributor(s): Peter Loshin

A denial-of-service attack is a security event that occurs when an attacker prevents legitimate users from accessing specific computer systems, devices, services or other IT resources. Denial-of-service (DoS) attacks typically flood servers, systems or networks with traffic in order to overwhelm the victim's resources and make it difficult or impossible for legitimate users to access them.

While an attack that crashes a server can often be dealt with successfully by simply rebooting the system, flooding attacks can be more difficult to recover from. Recovering from a distributed denial-of-service (DDoS) attack, in which attack traffic comes from a large number of sources, can be even more difficult.

DoS and DDoS attacks often use vulnerabilities in the way networking protocols handle network traffic; for example, by transmitting a large number of packets to a vulnerable network service from different Internet Protocol (IP) addresses in order to overwhelm the service and make it unavailable to legitimate users.

Answer 2

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$\sf{\underline{1)\:Denial\:of\:Service:}}$


This type of attack eats up all the resources of a system and the system or application come to a halt.



$\sf{\underline{2)\:Sweeper\:attack:}}$


Sweep attack is another malicious program used by hackers. It sweeps i. e., deletes all the data from the system.


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