ssd8考試一 計算機網絡
A Web proxy server listens to requests, then retrieves the requested files from other Web servers and serves them to the clients. These proxy servers are useful in certain situations, such as on firewalls, where they can allow access to certain pages and deny access to others
A Web proxy server listens to requests, then retrieves the requested files from other Web servers and serves them to the clients. These proxy servers are useful in certain situations, such as on firewalls, where they can allow access to certain pages and deny access to others
樣板 B 樹 ( B - tree )
規則 :
(1) 每個節點內元素個數在 [MIN,2*MIN] 之間, 但根節點元素個數為 [1,2*MIN]
(2) 節點內元素由小排到大, 元素不重複
(3) 每個節點內的指標個數為元素個數加一
(4) 第 i 個指標所指向的子節點內的所有元素值皆小於父節點的第 i 個元素
(5) B 樹內的所有末端節點深度一樣
