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系統(tǒng)規(guī)劃與管理師每日一練試題內(nèi)容(2018/6/19)
試題
1:
高速緩存 Cache 與主存間采用全相聯(lián)地址映像方式,高速緩存的容量為 4MB ,分為 4 塊 ,每塊 1MB ,主存容量為 256M B 。若主存讀寫時間為 30ns ,高速緩存的讀寫時間為 3ns ,平均讀寫時間為 3. 27ns ,則該高速緩存的命中率為 (1)%。若地址變換表如下所示,則主存地址為 8888888H 時,高速緩存地址為 (2)H ?! ?
(1)A.90
B.95
C.97
D.99
(2)A.488888
B.388888
C.288888
D.188888
試題解析與討論:
m.xiexiliangjiufa.com/st/3056420290.html試題參考答案:D、D
試題
2: 與多模光纖相比較,單模光纖具有 ()等特點。
A.較高的傳輸率、較長的傳輸距離、較高的成本
B.較低的傳輸率、較短的傳輸距離、較高的成本
C.較高的傳輸率、較短的傳輸距離、較低的成本
D.較低的傳輸率、較長的傳輸距離、較低的成本試題解析與討論:
m.xiexiliangjiufa.com/st/3061621099.html試題參考答案:A
試題
3:
站在數(shù)據(jù)庫管理系統(tǒng)的角度看,數(shù)據(jù)庫系統(tǒng)一般采用三級模式結構,如下圖所示。

圖中①②處應填寫(1),③處應填寫(2)。
(1)A.外模式/概念模式
B.概念模式 /內(nèi)模式
C.外模式/概念模式映象
D.概念模式/內(nèi)模式映象
(2)A.外模式/概念模式
B.概念模式 /內(nèi)模式
C.外模式/概念模式映象
D.概念模式 /內(nèi)模式映象
試題解析與討論:
m.xiexiliangjiufa.com/st/3078415043.html試題參考答案:C、D
試題
4: 系統(tǒng)管理預算可以幫助IT部門在提供服務的同時加強成本/收益分析,以合理地利用IT資源、提高IT投資效益。在企業(yè)IT預算中其軟件維護與故障處理方面的預算屬于()
A.技術成本
B.服務成本
C.組織成本
D.管理成本試題解析與討論:
m.xiexiliangjiufa.com/st/3093818910.html試題參考答案:B
試題
5: 軟件維護階段最重要的是對()的管理。
A.變更
B.測試
C.軟件設計
D.編碼
試題解析與討論:
m.xiexiliangjiufa.com/st/3094429996.html試題參考答案:A
試題
6: 在IT外包日益普遍的浪潮中,企業(yè)為了發(fā)揮自身的作用,降低組織IT外包的風險,最大程度地保證組織IT項目的成功實施,應該加強對外包合同的管理,規(guī)劃整體項目體系,并且()。
A.企業(yè)IT部門應該加強學習,盡快掌握新出現(xiàn)的技術并了解其潛在應用,不完全依賴第三方
B.注重依靠供應商的技術以及軟硬件方案
C.注重外包合同關系
D. 注重項目體系整體規(guī)劃試題解析與討論:
m.xiexiliangjiufa.com/st/3110025134.html試題參考答案:A
試題
7: 系統(tǒng)說明書應達到的要求包括 ( )。
①全面 ②系統(tǒng) ③準確 ④詳實 ⑤清晰 ⑥重復
A.①②③
B.①②③④
C.①②③④⑤
D.①②③④⑤⑥
試題解析與討論:
m.xiexiliangjiufa.com/st/3130817742.html試題參考答案:C
試題
8: ( )是為了實現(xiàn)項目的目標,對項目的工作內(nèi)容進行控制的管理過程。
A.項目范圍管理
B.項目時間管理
C.項目成本管理
D.項目集成管理
試題解析與討論:
m.xiexiliangjiufa.com/st/358411539.html試題參考答案:A
試題
9: 主機故障時通常需要啟用系統(tǒng)備份進行恢復。根據(jù)所提供的備份類型不同,主機服務上有三種重啟模式。下列選項中,( )不屬于這三種重啟模式。
A.無負載啟動
B.熱重啟
C.冷重啟
D.暖重啟
試題解析與討論:
m.xiexiliangjiufa.com/st/3867527898.html試題參考答案:A
試題
10: The purpose of a programming system is to make a computer easy to use. To do this, it furnishes languages and various facilities that are in fact programs invoked and controlled by language features. But these facilities are bought at a price: the external description of a programming system is ten to twenty times as large as the external description of the computer system itself. The user finds it far easier to specify any particular function, but there are far more to choose from, and far more options and formats to remember.
Ease of use is enhanced only if the time gained in functional specification exceeds the time lost in learning, remembering, and searching manuals. With modern programming systems this gain does exceed the cost, but in recent years the ratio of fain to cost seems to have fallen as more and more complex(1) have been added.
Because ease of use is the purpose, this radio of function to conceptual complexity is the ultimate test of system design. Neither function alone nor simplicity alone(2) a good design.
This point is widely misunderstood. Function, and not simplicity, has always been the measure of excellence for its designers. As soon as ease of use is held up as the criterion, each of these is seen to be(3) , reaching for only half of the true goal.
For a given level of function, however, that system is best in which one can specify things with the most simplicity and straightforwardness. (4) is not enough. Mooer’s TRAC language and Algol 68 achieve simplicity as measured by the number of distinct elementary concepts.
They are not, however, straightforward. The expression of the things one wants to do often requires involuted (復雜的)and unexpected combinations of the basic facilities. It is not enough to learn the elements and rules of combination; one must also learn the idiomatic usage, a whole lore of how the elements are combined in practice. Simplicity and straightforwardness proceed from conceptual(5) . Every part must reflect the same philosophies and the same balancing of desiderata. Every part must use the same techniques in syntax and the analogous notions in semantics. Ease of use, then, dictates unity of design, conceptual integrity.
(1)
A.systems
B.functions
C.programs
D.manuals
(2)
A.defines
B.can be
C.constructs
D.costs
(3)
A.stabilize
B.equalized
C.unbalanced
D.balanced
(4)
A.Function
B.System
C.Straightforwardness
D.Simplicity
(5)
75
A.integrity
B.isolation
C.durability
D.consistency
試題解析與討論:
m.xiexiliangjiufa.com/st/386856138.html試題參考答案:B、B、A、C、A