問題詳情
36 下列有關 802.11 無線網路架構與運作的敘述何者錯誤？
(A)PCF（Point Coordination Function）是一種不會產生競爭的傳輸模式
(B)DCF（Distributed Coordination Function）是一種會產生競爭的傳輸模式
(C)先進行載波感測（carrier sense），再進行碰撞偵測，都沒問題就可以傳送資料
(D)每次傳送訊框（frame）前都一定要先等待一個訊框間隔時間（IFS, Inter-Frame Space）
(A)PCF（Point Coordination Function）是一種不會產生競爭的傳輸模式
(B)DCF（Distributed Coordination Function）是一種會產生競爭的傳輸模式
(C)先進行載波感測（carrier sense），再進行碰撞偵測，都沒問題就可以傳送資料
(D)每次傳送訊框（frame）前都一定要先等待一個訊框間隔時間（IFS, Inter-Frame Space）
參考答案
答案：C
難度：適中0.420635
統計：A(41),B(31),C(106),D(44),E(0)
內容推薦
- 35 某公司註冊申請 C 類別（使用前 24 位元於網路編號）IPv4 網址，則該公司可使用的網址共為若干？(A)28 (B)216 (C)224 (D)232
- 【題組】Which is NOT true about Sudoku?(A) Sudokuk wasn’t invented in Japan.(B) It was The Times tha
- 【題組】Where is the boy’s mother now?(A) She’s in the heaven.(B) She’s in the hospital with the boy.
- ( ) Colin: ________ have you played the guitar? Russ: I’ve played it for three years.(A) How oft
- 34 在網際網路的資料傳輸技術中，其封包的資料結構中用以標示資料來源與目的地者為下列何者？(A)負載（payload） (B)標頭（header） (C)旗標（flag） (D)標籤（tag）
- 【題組】Which is true about Kaji Maki according to the reading?(A) He was the boss of Nissan Company
- 【題組】 Which is true? (A) Before Anna cooked lunch, she visited her friends. (B) Anna did exercise a
- ( ) Just keep ______, and you’ll be a good player in the future.(A) to practice hard (B) practici
- 下列關於電流大小的敘述，何者正確？(A)導體橫截面積愈大，導體中的電流也愈大 (B)通過導體橫截面的電荷量愈多，導體中的電流愈大(C)通電時間愈短，導體中的電流愈大 (D)通過導體橫截面的電荷
- 33 路由器選擇資料封包行進路徑的方法稱之為：(A)繞徑演算法（routing algorithm） (B)交換演算法（swapping algorithm）(C)流量控制演算法（flow-contr
內容推薦
- 37 欲傳送的原始資訊，分切成一個個大小固定的資料區塊並加以註記後，送進網路連線中；每個資料區塊可能走不同的路徑，最後到了目的地，再將所有的資料區塊組裝回原始的訊息。此種資料傳輸方法稱之為：(A)路徑
- 0They have stayed in the hotel____ threedays. (A)since (B)for (C)in (D)between
- 0He is sick, and he is in the hospital now. Ms. Li ____ his parents already. (A)is telling (B)was
- 【題組】0(A)tired (B)tired of (C)tiring (D)tiring to
- 0They____ to Hualien, and they are rowingboats in Hualien now. (A)go (B)will go (C)have gone (D)ar
- 【題組】0(A)about (B)to (C)for (D)of
- 【題組】0What did Nancy ask after she had a new table?(A) She wanted a new bed. (B)She wantedsome fri
- 0I don’t like stinky tofu____ its smell.(A)although (B)but (C)because of (D)because
- (B) Ben:Hi! What a nice day! Ana:Yes, it is. It is your dog, _04_ it? Ben:Yes, her name is Lucy. An
- 0Jean’s h___d is a famous doctor.
- 【題組】0Why did Nancy stand in a poor house in theend?(A)She asked for her own old house. (B)Shedidn
- 0Jim is interested in____tennis.(A)play (B)plays (C)playing (D)played
- 【題組】0(A)does (B)doesn’t (C)can (D)can’t
- Its taste always surprises my f___n friend.
- 【題組】（ ）3：像竹簡並排的形狀。
- 文意字彙 0K___ is power.
- 0We wanted to eat the apple, so they cut it ____half. (A)in (B)at (C)of (D)with
- 【題組】0(A)is (B)isn’t (C)does (D)doesn’t
- 【題組】Willy is a single-parent(單親) child. He’s not happy and often alone at home. Can Pepper help h
- 請閱讀下列小品文後，將適當的選項填入表格中。 小時候隨母親回娘家，要走一段不短的路，母親每次看我們累了，就說：「外婆家快到了，就在前面。」然後我們就奮起腳程，奔走一陣，每次走那一段路，母親總要說
- 0Snow White is a kind and pretty p___s.
- 0She had to finish it, ____? (A)isn’t she (B)wasn’t she (C)didn’t she (D) hadn’t she
- 四.閱讀測驗 (A) Is life often very exciting? That is not always easy to answer. For John, however, it is
- 五.依提示回答問題 0Doesn’t he exercise every day?（改寫成直述句，並加入附加問句）
- 【題組】Which is true?(A)The education system in Japan is better than in Norway.(B)Men and women are