---
title: "negação de serviço"
description: "Um ataque de segurança destinado a sobrecarregar o sistema com pedidos, de modo a que não seja possível responder aos pedidos legítimos."
type: term
term_id: 667
language: Português
language_code: pt
canonical: "https://glossary.istqb.org/pt/term/negao-de-servio-1"
slug: "negacao-de-servico"
url: "https://istqb-glossary.page/pt/negacao-de-servico/"
---

# negação de serviço

Um ataque de segurança destinado a sobrecarregar o sistema com pedidos, de modo a que não seja possível responder aos pedidos legítimos.

## Present in syllabi


- Advanced Technical Test Analyst 2012
- Advanced Security Tester 2016
- Foundation Extension - Performance Testing 2018
- Advanced Technical Test Analyst 2019

## Translations


- [English](https://istqb-glossary.page/denial-of-service/) — denial of service
- [Deutsch](https://istqb-glossary.page/de/dienstblockade/) — Dienstblockade
- [Italiano](https://istqb-glossary.page/it/denial-of-service/) — denial of service
- [日本語](https://istqb-glossary.page/jp/%E3%82%B5%E3%83%BC%E3%83%92%E3%82%B9%E6%8B%92%E5%90%A6-denial-of-service/) — サービス拒否（denial of service）
- [Português (Brasil)](https://istqb-glossary.page/br/denial-of-service/) — denial of service
- [Polski](https://istqb-glossary.page/pl/blokada-us%C5%82ug/) — blokada usług
- [Čeština](https://istqb-glossary.page/cz/odepreni-sluzeb-dos/) — odepření služeb (DOS)
- [Svenska](https://istqb-glossary.page/se/denial-of-service/) — denial of service
- [Svenska](https://istqb-glossary.page/se/fornekande-av-tjansten/) — förnekande av tjänsten
- [Norsk](https://istqb-glossary.page/no/dos-angrep/) — DoS angrep
- [Norsk](https://istqb-glossary.page/no/tjenestenektangrep/) — tjenestenektangrep

Read this term online: https://istqb-glossary.page/pt/negacao-de-servico/

Markdown variant of the HTML page at https://istqb-glossary.page/pt/negacao-de-servico/ — part of the
ISTQB Glossary (https://istqb-glossary.page), a linkable, machine-readable
republication of the ISTQB glossary under fair use. No affiliation with ISTQB.