サ
　
ー
　
ビ
　
ス
きょ
拒
ひ
否
こう
攻
げき
撃

noun

Computer terminology.
  1. denial of service attack.

Variations

Pronunciation Kanji Kana Is Common
　
サ
　
ー
　
ビ
　
ス
きょ
拒
ひ
否
こう
攻
げき
撃
 サービス拒否攻撃 サービスきょひこうげき

Contained Kanji Breakdown

repel, refuse, reject
キョ　こば.む　ゴ (Early High School, N1)
hand, hand radical (no. 64)
シュ
gigantic, big, large
キョ　おお　か (Early Jr. High, N2)
box-on-side enclosure radical (no. 22)
ホウ (Kentei 1)
ko
negate, no, noes
ヒ　いな　いや (6th, N3)
negative, non-, bad
フ (4th, N4)
cliff, (厂 variant)
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク　うらな.う　うらない (Kentei Pre-1)
mouth
くち　コウ　ク (1st, N4)
aggression, attack, criticize
コウ　せ.める　おさむ (Early Jr. High, N1)
craft, construction, katakana e radical (no. 48)
コウ　ク　もく (2nd, N4)
strike, hit, folding chair radical variant (no. 66)
ホク (Kentei 1)
person, (人 variant)
mow, cut grass, subdue
ガイ　ゲ　おさ.める (Kentei 1)
beat, attack, defeat
ゲキ　う.つ (Early Jr. High, N1)
fishing pole, fishing rod
car
シャ　くるま　くら (1st, N5)
span, range, extend over
わた.る　コウ　わたる (Kentei Pre-1, N1)
one, one radical (no.1)
イチ　いっ　ひと- (1st, N5)
daybreak, dawn, morning
タン　あき.らか　あきら (Late High School, N1)
day, sun, Japan
ひ　にっ　ニチ (1st, N5)
number one, line, rod radical (no. 2)
コン　シ　ジョ
pike, windy-again radical (no. 79)
シュ　また　ほこ (Kentei 1)
table, table enclosure, table or windy radical (no. 16)
キ　きにょう (Kentei 1)
or again, furthermore, on the other hand
また　ユウ　やす (Late Jr. High, N1)
hand
て　シュ　ズ (1st, N4)