
電腦資料儲存與編碼測驗
Quiz
•
Computers
•
3rd Grade
•
Hard
陳宗生 陳宗生
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當聲波的頻率和強度達到特定的範圍時,才能被聽覺系統所接收。若人耳能聽到的頻率大約在20Hz~20,000Hz,指的是下列哪一個影響聲音的因素?
音色
音調
響度
震度
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
聲音的取樣指的是在單位時間內,將聲波切割成數個時間間隔相等的樣本。取樣頻率的單位為「Hz」,指的是在多少的時間內,對聲音取樣的次數?
每秒鐘
每分鐘
每小時
每天
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
影像的取樣是將影像切割成多個大小相同的方塊,若阿哲想利用掃描器將一張 4×6 英吋的照片數位化,則採用下列何者取樣的照片畫質較清晰?
4×6
12×18
400×600
1200×1800
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用 Inkscape 繪圖時,若想取得未經重疊的部分,應該執行「路徑」功能表中的哪一種指令?
相加
減去
交集
排除
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
隨著資訊科技的發展,文字、影像、聲音等資料,都能藉由數位化的方式儲存在電腦中。下列關於「數位化」的敘述,何者錯誤?
電腦只能辨別 0 與 1 的電流訊號
常以二進位表示資料
數位化能儲存大量資料
數位化無法儲存聲音
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若有一組二進位數字為「01101」,試問,轉換成十進位數字是多少?
3
4
13
14
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在拷貝取部分的 ASCII 編碼系統如附表,若有一組二進位為「01111010 01100101 01110010 01101111」的編碼,其文字為何?
zero
hero
zero
aero
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