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軟件設(shè)計師每日一練試題內(nèi)容(2021/12/28)
試題1: MPEG-I編碼器輸出視頻的數(shù)據(jù)率大約為(1)。PAL制式下其圖像亮度信號的分辨率為(2),幀速為(3)。
(1)A、128Kb/s
B、320Kb/s
C、1.5Mb/s
D、15Mb/s
(2)A、352×288
B、576×352
C、720×576
D、1024×720
(3)A、16幀/秒
B、25幀/秒
C、30幀/秒
D、50幀/秒
People are i ndulging in an illusion whenever t hey find themselves explaining at a cocktail(雞尾酒) party, say, that they are "i n computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between us, they usually aren't. The researchers who made fundamental breakthroughs in those areas are in a high-tech busi ness. The rest of us are (1) of their work. We use computers and other new t echnology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working groups(緊密聯(lián)系在一起的工作小組), we are mostl y in the human communication business. Our successes stem
from good human int eractions by all participants in the effort, and our failures stem from poor human interactions.
The main reason we tend to focus on t he (2) rather t han the human side of the work is
not because it's more (3) , but because it's easier to do. Getting the new disk drive installed is positively trivial compared t o figuring out why Horace is in a blue funk(恐懼) or why Susan is dissatisfied with the company after only a few months. Human interactions are complicated and never very crisp(干脆的,干凈利落的) and clean in their effects, but they matter more than any other aspect of the work.
If you find yourself concentrating on the (4) rather than the (5), you're like t he
vaudeville character(雜耍人物) who loses his keys on a dark street and looks for them on t he adjacent street because, as he explains, "The light is better there!".
(1)A、creators
B、innovators
C、appliers
D、inventors
(2)A、technical
B、classical
C、social
D、societal
(3)A、trivial
B、crucial
C、minor
D、insignificant
(4)A、technology
B、sociology
C、physiology
D、astronomy
(5)A、technology
B、sociology
C、physiology
D、astronomy
某公司采用的軟件開發(fā)過程通過了 CMM2 認(rèn)證,表明該公司 ( ) 。
A、開發(fā)項目成效不穩(wěn)定,管理混亂
B、對軟件過程和產(chǎn)品質(zhì)量建立了定量的質(zhì)量目標(biāo)
C、建立了基本的項目級管理制度和規(guī)程,可對項目的成本、進(jìn)度進(jìn)行跟蹤和控制
D、可集中精力采用新技術(shù)新方法,優(yōu)化軟件過程
媒體可以分為感覺媒體、表示媒體、表現(xiàn)媒體、存儲媒體、傳輸媒體,()屬于表現(xiàn)媒體。
A.打印機
B.硬盤
C.光纜
D.圖像
某銀行為用戶提供網(wǎng)上服務(wù),允許用戶通過瀏覽器管理自己的銀行賬戶信息。為保障通信的安全性,該 Web 服務(wù)器可選的協(xié)議是 ( ) 。
A、POP
B、SNMP
C、HTTP
D、HTTPS
結(jié)構(gòu)化開發(fā)方法中,()主要包含對數(shù)據(jù)結(jié)構(gòu)和算法的設(shè)計。
A.體系結(jié)構(gòu)設(shè)計
B.?dāng)?shù)據(jù)設(shè)計
C.接口設(shè)計
D.過程設(shè)計
某一非確定性有限自動機(NFA)的狀態(tài)轉(zhuǎn)換圖如下圖所示,與該NFA等價的正規(guī)式是(1),與該NFA等價的DFA是(2)。
(1)
(2)
設(shè)有關(guān)系模式R(A1,A2,A3,A4,A5,A6),其中:函數(shù)依賴集F={A1→A2,A1A3→A4,A5A6→A1,A2A5→A6,A3A5→A6},則(1 )是關(guān)系模式R的一個主鍵,R規(guī)范化成都最高達(dá)到(2 )。
(1)A.A1A4
B.A2A4
C.A3A5
D.A4A5
(2)A. 1NF
B. 2NF
C. 3NF
D. BCNF
某計算機系統(tǒng)頁面大小為4K,若進(jìn)程的頁面變換表如下所示,邏輯地址為十六進(jìn)制1D16H。該地址經(jīng)過變換后,其物理地址應(yīng)為十六進(jìn)制 ( ) 。
A.1024H
B.3D16H
C.4Dl6H
D.6D16H
CPU中譯碼器的主要作用是進(jìn)行()。
A.地址譯碼
B.指令譯碼
C.?dāng)?shù)據(jù)譯碼
D.選擇多路數(shù)據(jù)至ALU
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