全國計(jì)算機(jī)等級(jí)考試四級(jí)軟件測(cè)試工程師筆試試題weng(參考版)
2025-03-27 07:36本頁面
【正文】 (2)在許多含有復(fù)雜數(shù)據(jù)結(jié)構(gòu)或豐富語義的實(shí)際應(yīng)用領(lǐng)域中， 為什么要選用面向?qū)ο髷?shù)據(jù)庫或要對(duì)關(guān)系型數(shù)據(jù)庫作某些擴(kuò)充和修改？(12分)共分15頁，當(dāng)前頁是第15頁。試從關(guān)系數(shù)據(jù)模型的優(yōu)點(diǎn)和弱點(diǎn)論述： 人們?cè)诠芾韺?shí)踐中發(fā)現(xiàn),數(shù)據(jù)庫技術(shù)是信息資源的整理、保存、 管理和使用的最有效的手段。 (3) Intel X86 系列屬于哪一種風(fēng)格,當(dāng)前它采用的是怎樣的技術(shù)路線.(10分) (1) 指出 CISC 的主要弊病.(8分) 論述題 1 A) the Physical Layer B) the Network Layer C) Source Routing D) Frame Forwarding bridges read the routing information to determine if they should forward the . (89)Which routing algorithm is described below?It is a mechanism in which the setding station determines the route the frame C) the Physical,Data Link,and Transport Layers e Physical,Network,and Session Layersmodel correspond to the layers?_____. A) Kbps B) Kbps C) Kbps D) Kbps (87)According to Shannon39。 (86)You are performing two sums: the first is a sum of two scalar variables and the second is a matrix sum of a pair of twodimensional arrayssize 1000 by 1000. What speedup is achieved when the calculations are performed on size 1000 processors? _____.(2 Points) C) a few generalpurpose registers A) a high clock speed A) 25 B) 60 C) 75 D)100 (84) A cache has 64 blocks。 C) It preserves the sign of the multiplication operation.s Algorithm improve binary multiplication?_____. C)external function of a program D)internal logic of a programs_____. D)A change during a later phase does not require the documentation of all earlierphases to be updated. B)Testing is optional in software life cycle. (81) Which of the following statements is correct?_____. (2 Points) A) the design phase B) the testing phase (80) Which phase of the software development requires the most development time? _____. also influnces software’s _____.(2 Points) D) It is used as the foundation of the larger projects. B) It assists in gathering software requirements (78)Which function is NOT served by building a prototype? _____. of the following levels? _____. A) Ⅰ only B) Ⅰand Ⅱ only C) Ⅰand Ⅲ only D) any of them Ⅱ.no nonkey attributes exist in the relation. to be in second normal form? _____. A) 6,000 B) 4,800 C) 18,000 D)1,600 (75)In developing a hospital database,it is determined that on the average,each patient will have 6 treatments during a hospital stay. The averge length of a stay is three hospital has 1000 are on the average 800 patientsoccupying relationship between PATIENT and TREATMENT is l: relationship between PATIENT and BED is 1: 1,conditional. If treatment record occurrences are archived as soon as a patient is discharded from the hospital, how many occurrences of the TREATMENT records will be stored in the TREATMENT database file on the C)a select statement that appears within another select statement A)a select statement that selects a subset of fields in a table A) a stack B) an open file C) a semaphores D) an address space C) IPC mechanisms D) memory management A) basic I/O B) a file system A) 8 B) 9 C) 10 D) 11 0 1 2 3 0 1 5 0 1 2 3 4 _____. (71)A virtual memory system has five virtual pages numbered zero through four and A) DEL /s *.bat B) DEL *.exe/sp C) link s /etc/hosts myfile D) link s myfile /etc/hosts the file/etc/hosts?_____. D)Both Insertion Sort and Selection Sort require O(n)moves. B)Exchange sort is the lea
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