超酷小 发表于 2019-2-3 10:38:12

"SAP校园精英同略会邀请" 参考答案

"SAP校园精英同略会邀请" 参考答案
       
    答案并非标准答案, 仅供参考. 希望大家能尽量自己答题, 多学知识, 答案仅供学术研究.
    截止时间:2013-10-31
      
1. 原题:
   
First Part: Logical– Single Option(5 Questions, 5 points/question)
1. 研究显示,在115摄氏度下,将甜玉米分别加热10分钟、25分钟和50分钟后发现,其抗自由基的活性分别升高了22%、44%和53%,因此,加热时间越长的玉米,抗衰老的作用越好。以下各项如果为真,无法削弱上述结论的是( )    

[*] A. 加热60分钟后,玉米抗自由基的活性反而降低了
[*] B. 与甜玉米相比,糯玉米在加热相同时间后,其抗自由基的活性增高的幅度很小
[*] C. 甜玉米是玉米中比较少见的一种,不具有代表性
[*] D. 对于玉米来说,并非是抗自由基的活性越高,其抗衰老的作用越好

      2. 5000多年前某地是大汶口文化,但在距今约4400年的时候,为龙山文化所替代。是什么原因导致这两种文化的更迭?考古人员发现,在距今约4400
年前的时候,发生了一次严重的“冷事件”,环境由原来的温暖湿润转变为寒冷干燥,植被大量减少,藻类、水生植物基本绝迹了,大汶口文化向南迁移,
而龙山文化由北迁到此地。他们据此认为,距今4400年左右的极端气候变化,可能是导致这次文化变迁的主要原因。以下哪项如果为真,最能支持上述论证( )    

[*] A. 大汶口文化有不断向南方迁移的传统
[*] B. 龙山文化刚迁来时,人口较多,但之后逐渐减少,在距今约4000年的时候消 失了
[*] C. 大汶口文化的族群以藻类和水生植物作为食物的主要来源
[*] D. 不同生存方式的族群对气候和环境都有相对稳定的需求

      3. 有研究表明,要成为男性至少需要拥有一条Y染色体。3亿年前,男性特有的Y染色体在产生之际含有1438个基因,但现在只剩下45个。按照这种速
度,Y染色体将在大约1000万年内消失殆尽。因此,随着Y染色体的消亡,人类也将走向消亡。
如果以下各项为真,最不能质疑上述论证的是( )    

[*] A. 恒河猴Y染色体基因确实经历过早期高速的丧失过程,但在过去的2500万年内则未丢失任何一个基因
[*] B. 男性即使失去Y染色体也有可能继续生存下去,因为其他染色体有类似基因可以分担Y染色体的功能
[*] C. 人类进化过程中,可以找到单性繁殖或无性繁殖后代的方法,从而避免因基因缺失引发的繁殖风险
[*] D. Y染色体存在独特的回文结构,该结构具有自我修复功能,可以保持丢失基因的信息,实现基因再生

      4. 在不同语言中,数字的发音和写法都不一样。一些科学家认为,代表不同文化背景的语言,会对人们大脑处理数学信息的方式产生影响。
以下哪项如果为真,最能支持上述结论( )
   

[*] A. 相比欧洲,亚洲地区的人们在进行数量大小比较时,大脑中个别区域的活跃程度有所不同
[*] B. 在同一国家,不同方言区的人们进行数学运算时,大脑语言区的神经传递路线并不十分一致
[*] C. 研究发现,以英语为母语的人进行心算时主要依赖大脑的语言区,而以中文为母语的人主要动用了大脑的视觉信息识别区
[*] D. 研究发现,不同专业背景的人们在计算数学题时会选择不同的思考方法,但都会不同程度地依赖大脑的语言区

      5. 20世纪50年代以来,人类丢弃了多达10亿吨塑料,这种垃圾可能存在数百年甚至数千年。近日,一个科研小组在亚马逊雨林中发现了一种名为内生菌
的真菌,它能降解普通的聚氨酯塑料。科研人员认为利用这种真菌的特性,将有望帮助人类消除塑料垃圾所带来的威胁。
科研人员的判断还需基于以下哪一前提( )    

[*] A. 塑料垃圾是人类活动产生的最主要的废弃物种类
[*] B. 内生菌在任何条件下都可以很好地分解塑料制品
[*] C. 目前绝大多数塑料垃圾都属于普通的聚氨酯塑料
[*] D. 这种真菌在地球上其他地区也能正常地存活生长

Second Part: Technical Skill– Single Option (10 Questions, 5 points/question)
Q1. Which of the following forms of storage has the fastest access?    

[*] (A) RAM
[*] (B) CPU Cache
[*] (C) Hard disk
[*] (D) Solid-state drive (SSD)

      Q2. The client–server model is a distributed application structure in computing that partitions tasks or workloads between the
providers of a resource or service, called servers, and service requesters, called clients. Which of the following scenarios does
NOT adopt client-server model?    

[*] (A) Email
[*] (B) Peer-to-peer network
[*] (C) World Wide Web
[*] (D) Network printing

    Q3. Which of the following forms of data storage allows being accessed in any random order?

[*] (A) Memory
[*] (B) Hard disk
[*] (C) CD
[*] (D) Magnetic tape

      Q4. Memory leak of a running program can cause serious issues (E.g. crash of processes, system crash or unresponsiveness).
Which of the following diagram may indicate memory leak is happening?
   

[*] (A) A
[*] (B) B
[*] (C) C
[*] (D) D

      Q5. Software tests are frequently grouped by where they are added in the software development process, or by the level
of specificity of the test. Which of the following is NOT a testing level?
   

[*] (A) Unit testing
[*] (B) Integration testing
[*] (C) System testing
[*] (D) Black-box testing

    Q6. Which of the following is related to data structure stack?

[*] (A) Definition and usage of arrays
[*] (B) Multi-thread usage
[*] (C) Recursive function calls
[*] (D) Select statement calls (e.g. if-else statement)

      Q7. A big database table with millions of records is frequently accessed for reading, but not frequently for writing. To improve
the performance of reading, which of the following measures should be considered?
   

[*] (A) Enable table cache/buffering
[*] (B) Create an index for each column
[*] (C) Delete some records
[*] (D) Increase system memory

    Q8. Which of the following is NOT a software design pattern?

[*] (A) Prototype
[*] (B) Facade
[*] (C) Proxy
[*] (D) Interface

    Q9. Which statement is correct about zombie process (僵尸进程) in Unix/Linux operating system?

[*] (A) Zombie process is still running
[*] (B) The parent process of the zombie has died
[*] (C) Zombie process can be cleaned by command “kill -9”
[*] (D) Zombie process is also called defunct process

      Q10. In C programming language, XOR operator is denoted as “^”. Please select the correct output of the following program:

   

[*] (A) 15 32 89 71 44
[*] (B) 44 71 89 32 15
[*] (C) 89 71 44 32 15
[*] (D) 15 32 44 71 89

Third Part: Written practice (25 Points)
Please read below Email, and reply this email with your idea.    最多输入1000   2. 答案:
    Logical
1. 选B, 无法削弱上述结论. 缓慢增长也是支持上述结果.2. 选D. C错误是又可能以此植物为生的动物减少, 而不一定是人以植物为食.3. 选A. 恒河猴, 毫不相关.4. 选A. B.方言的写法一样, 错误; C. 心算没有发音; D. 专业背景不是文化背景.5. 选C. BD, 真菌不一定需要适应环境, 可以工厂化降解.   Technical Skill
Q1: 选B, 内存常识, CPU Cache;Q2: 选B, 三种模式: P2P、B/S、C/S模式;Q3: 选A, B\C\D都是顺序访问;Q4: 选A, “锯齿”模式的内存利用率: 在使用过程中, 内存突然下降, 程序有内存泄露的征兆;Q5: 选D, 测试常识;Q6: 选C, 递归需要使用栈.Q7: 选B, 创建索引;Q8: 选D, 常识, 接口不是;Q9: 选D, B错, 子进程死了; C错, 不能kill;Q10: 选D, 排序问题;   Written practice
Hi, Tom: Don't worry! You have done a good job. We should believe our products. Now I want to say something about the component CX:1. Our component CX has run all samples for testing in the experimental environment, and then it upgraded on the production line.2. Our application has a good compatibility with the new version component CX. I have some advices for you about this urgent issue:1. Check the manual of component CX and ensure the upgrading is all right according to the manual;2. Check their production line to find whether they updated other components that not belong to our company. If they updated, please pass the information of that new component to our testing department.3. Submit the error information to our testing department. Our testing department will find the essence of this issue. Thanks for you to copy Amy.We will discuss this issue together and give you a reply as soon as possible. Always remember: Client First! BR.Jack


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