高上模擬考題 - 考試
By Tristan Cohan
at 2013-06-30T20:19
at 2013-06-30T20:19
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
高上模考 計概
有關雜湊技術的敘述,下列哪些是正確?
(A)目的是把各項記錄近可能均勻的散佈儲存於檔案之中
(B)其能有效的利用儲存空間,並允許快速的隨機處理
(C)一定錯
(D)是一種主鍵編址的技術,其運算處理的基礎是主鍵,結果傳出一個獨特編號
(D)一定對
但是(A) (B) 不知道錯在哪
HASH的目的是有效利用有限的儲存空間,且加入、刪除也要快速完成
既然如此(A)的情況一定碰撞少 為何它會錯@@
Hash可以達到隨機存取 那(B)又為何錯@@
題目是問哪些 為何只給一個(D)選項??
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