推 just1016:9.應該是4 (3)是不可搶 04/26 23:01
推 just1016:18.是2 04/26 23:19
推 just1016:(Quantization) 模式動態碼流壓縮, 可以高速地一次性生成 04/26 23:26
→ just1016:可控畫面細節的動態碼流視頻檔案, 在較少的壓縮時間代價ꐠ 04/26 23:26
→ just1016:之下, 可以獲得較穩定的畫面細節質量。 google一下吧 04/26 23:27
9. Which strategy in the following is pre-emptive?
(1)first come first serve (2)shortest job first (3)earliest deadline first
(4)first come last serve
我覺得答案是3? 1,2都不是可搶先，4不知道
12. Which of the following is not true for the JPEG compression standard.
(1)apply DCT transform (2) undergo quantization process
(3) can compress image data (4) is a lossless compression method.
根據an overview書上寫的，(1)(3)(4)都有，答案應該是(2)，不過這個選項是什麼意思？
18. Which of the following mechanism is not provided by the earliest SQL(for
relational DataBase)?
(1)projection (2)recursive query (3)natural join (4)relation update
答案是(2)嗎？
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