S., or a distributed denial of service attack, revealed a high degree of amateurism.
S.系统（分布式拒绝服务攻击）说明他们的水平十分业余。
Denial of Service
英语例句库
原声例句
VOA Standard 2015年3月合集
Such overload, or " denial of service" attacks, are irritating.
这种超载，也就是“拒绝服务”的攻击很让人恼火。
PBS访谈社会系列
That's a reference to denial of service attacks that crippled the Web sites of Ukraine's largest banks and the Foreign and Defense ministries.
这是指对乌克兰最大的几家银行以及外交部和国防部网站的拒绝服务攻击。
新闻英语（普特英语听力材料）
Internet servers within the country are being deliberately flooded with far too much data in what is known as a Distributed Denial of Service attack.
黑客使用分布式的拒绝服务攻击手段(DDoS)导致缅甸国内网络服务器被恶意阻塞。
计算机科学 Crash Course
Think of Denial of Service Attacks, where hackers overload a website with fake requests to make it slow or unreachable for others.
拒绝服务攻击 (DDOS) 就是黑客发大量的假请求到服务器，让网站很慢或者挂掉。
NPR音讯 2014年12月合集
The things that we've seen from them — the attacks against the South Korean businesses and media have been much more primitive kind of attacks — DDOS, denial of service attacks.
我们看到他们对韩国企业和媒体的攻击要更简单，是那种阻断服务攻击。
经济学人-国际
Minutes later a website of the African National Congress (ANC), South Africa's ruling party, went offline: another victim of the oldest and crudest form of cyber-assault, a distributed denial of service (DDoS) attack.
不出几分钟南非执政党非洲国民大会（African National Congress，ANC）的网站就挂线了，成为最古老也最残暴的网络攻击方式-----分布式拒绝服务（DDoS）攻击的又一个受害者。
科技 Crash Course
This can have many purposes, like sending huge volumes of spam, mining bitcoins using other people's computing power and electricity, and launching Distributed Denial of Service or DDoS attacks against servers.
这可以有很多目的，例如发送大量垃圾邮件、使用其他人的计算能力和电力来挖掘比特币，以及对服务器发起分布式拒绝服务或 DDoS 攻击。
中文百科
阻断服务攻击 Denial-of-service attack
（重定向自Denial of Service）
阻断服务攻击（英语：Denial of Service Attack，缩写：DoS）亦称洪水攻击，是一种网络攻击手法，其目的在于使目标电脑的网络或系统资源耗尽，使服务暂时中断或停止，导致其对目标客户不可用。
当骇客使用网络上两个或以上被攻陷的电脑作为「僵尸」向特定的目标发动「拒绝服务」式攻击时，其称为分布式阻断服务攻击（Distributed Denial of Service attack，缩写：DDoS）。据2014年统计，被确认为大规模DDoS的攻击已达平均每小时28次。攻击发起者一般针对重要服务进行攻击，如银行，信用卡支付网关，甚至根域名服务器。
英语百科
Denial-of-service attack 阻断服务攻击
（重定向自Denial of Service）
In computing, a denial-of-service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service (DDoS) is where the attack source is more than one, often thousands of, unique IP addresses. It is analogous to a group of people crowding the entry door or gate to a shop or business, and not letting legitimate parties enter into the shop or business, disrupting normal operations.