下面是范文网小编分享的世界知名电子企业笔试题6篇，以供借鉴。
世界知名电子企业笔试题1
1. Select ONE of the following projects to discuss:
a. Signal Filtering: You are given a sampled realtime waveform consisting
of a sensor reading mixed with highly periodic impulses and high frequency noi
se.The desired output is the realtime filtered sensor signal with the impulses
and noise removed, and a readout of the impulse period. The FFT may not be us
ed.
b. Interrupt Processing.A headware register consisting of eight independen
t edge triggered latches is used to record external asynchronous interrupt req
uests. When any of the request bits are latched, a software interrupt is gener
ated. The software may read the latch to see which interrupt(s) occurred. Writ
ing a one to any latch bit will clear the latch. How does that software assure
that no interrupt request is ever missed?
c. User Interface: a prototype MP3 player interface consisting of a playli
st display and a few control buttons is given to you. How would you make the i
nterface “skinnable”,with user selected graphics, options, and control butto
n placement?
each project description is incomplete. What questions would you ask to co
mpletely specify the project? What development tools would you prefer to use?
What algorithm /data structures/design would you use?
2. What program(s) have you coded for you own enjoyment (not part of a sch
ool project,not for pay). What type of software project would you most enjoy w
orking on?
3. Have you participated in a team programming project? What is the hardes
t part of programming as a team, as opposed to programming alone?
世界知名电子企业笔试题2
1. Select ONE of the following projects to discuss:
a. Signal Filtering: You are given a sampled real time waveform consisting of a sensor reading mixed with highly periodic impulses and high frequency noise. The desired output is the real time filtered sensor signal with the impulses and noise removed, and a readout of the impulse period. The FFT may not be used.
b. Interrupt Processing. A headware register consisting of eight independent edge triggered latches is used to record external asynchronous interrupt requests. When any of the request bits are latched, a software interrupt is generated. The software may read the latch to see which interrupt(s) occurred. Writing a one to any latch bit will clear the latch. How does that software assure that no interrupt request is ever missed?
c. User Interface: a prototype MP3 player interface consisting of a playlist display and a few control buttons is given to you. How would you make the interface “skinnable”, with user selected graphics, options, and control button placement?
each project description is incomplete. What questions would you ask to completely specify the project? What development tools would you prefer to use?
What algorithm /data structures/design would you use?
2. What program(s) have you coded for you own enjoyment (not part of a school project, not for pay). What type of software project would you most enjoy working on?
3. Have you participated in a team programming project? What is the hardest part of programming as a team, as opposed to programming alone?
世界知名电子企业笔试题3
恒生电子笔试题
以下纯属参考，未必这么考
请大家一定要注意 oracle 数据库方面的知识
现在用人单位在 java 和 c的笔试上基本上难不倒我们但在一些对于数据库有比较高要求的软件企业，比如做金融很多时候，我们会有 oracle 数据库方面受挫，从而造成在薪资水平上受压制，甚至失去这个机会，
1.对于一个数据库表，可以有 1 个主键和 多 个外键。
2.为了防止一个用户的工作不适当的影响另一个用户，应该采取(c)
a完整控制 b，安全性控制 c，并发控制 d，访问控制
3.关系数据库中，实现实体之间的联系是通过表与表之间的(d)
a，公共索引 b，公共存储 c，公共元组 d，公共属性
4，sql 语言集数据查询，数据操纵，数据定义，数据控制功能与一体，充分体现了关系数据库语言的特点和优点。
5，触发器可以在 插入，删除或修改特定表中的数据 中的一种或几种操作发生时自动执行。
6，请列数据库编程中连接 sql server 数据库的三中不同技术：dsn，dsn-less，oledb
7，请举出实体间具有一对一，一对多，多对多联系的例子。
8，简要说明事务的原子性?事务的原子性指的是，事务中包含的程序作为数据库的逻辑工作单位，它所做的对数据修改操作要么全部执行，要么完全不执行。这种特性称为原子性。
事务的原子性要求，如果把一个事务可看作是一个程序，它要么完整的被执行，要么完全不执行。就是说事务的操纵序列或者完全应用到数据库或者完全不影响数据库。这种特性称为原子性。
假如用户在一个事务内完成了对数据库的更新，这时所有的更新对外部世界必须是可见的，或者完全没有更新。前者称事务已提交，后者称事务撤消(或流产) 。dbms必须确保由成功提交的.事务完成的所有操纵在数据库内有完全的反映，而失败的事务对数据库完全没有影响。
9，简要说明为什么存储过程执行速度比普通的 sql 更快而且减少网络流量?谁都知道存储过程是预编译的存储过程其实就是能完成一定操作的一组 sql 语句，只不过这组语句是放在数据库中的这里我们只谈 sql server。如果我们通过创建存储过程以及在 asp 中调用存储过程，就可以避免将 sql 语句同 asp 代码混杂在一起。这样做的好处至少有三个：
第一、大大提高效率。存储过程本身的执行速度非常快，而且，调用存储过程可以大大减少同数据库的交互次数。
第二、提高安全性。假如将 sql 语句混合在 asp 代码中，一旦代码失密，同时也就意味着库结构失密。
第三、有利于 sql 语句的重用。
应用题：0s
studentbaa
学号 姓名 性别 年龄 所在系
sno sname ssex sage sdept
courseb
课程编号 课程名 学分
cno cname ccredit
学号 课程编号 成绩
sno cno gradepr
1，查询所有学过课程“数据库”的学生姓名，并且按年龄从大到小排序select stu.sname stu.sage from student stucoursesc where stu.ame‘数据库‘
2，查询平均分数为 85 以上的学生名单和平均得分select stu.sname from student stusc where stu.snosc.sno and avgsc.grade85
3，新增加一门 2 个学分的课程，编原理 课程编号为 1005 (char 型)insert into coursecnocnameccredit values‘1005’”编译原理” ，2fapos
4，在选修关系 sc 表中，建立序号和课程编号的唯一索引，
5，学生信息中，要增加身份证号码字段 类型为 char 长度 18 非空alter table student addcredit_id char18 not null;
6，删除 sc 表中学号已经不存在的记录delete from sc where sno not inselect maxrowid from sc group by snocnograde
7，写出 sql 语句得到下列结果
所在系 男生人数 女生人数 总人数
select sdeptcount from student group by ssex
所在系 15《年龄〈18 18〈年龄〈20 的人数 其他年龄的人数 总人数
第一题是综合题，
1、毕业后想从事什么样的工作，为什么?
2、你父母对你的教育上，哪些造就了你现在的个性特点?
3、你的技术专长是什么?
4、你的学习成绩怎样?拿过什么奖励金?
第二题是不定项选择题
1、给你一串出栈序列，判断栈至少长多少
2、给出先序中序判断后续
3、字符数组赋值问题，包括 for 循环和 memset 和另一个 dzero(好像是这个函数)
4、linux/Unix 中允许读写但不允许执行的命令(666 跟 777)
5、关于静态变量说法正确的是哪些
6、关于数据库中索引作用的题
7、进程的并发会影响数据一致性的(读脏数据等)
第三题填空题
1、操作系统进程高级通信有哪些方式
2、给出一段代码，问这段代码有什么问题(指针为赋初值)
3、给出 IP，求子网掩码和可分配的主机数
4、数据库中事务的四个特点(原子性、一致性、独立性/隔离性、持久性)
第四题数据库操作题
大致就是给出三个表，要求写 SQL 语句，包括视图建立，增删改查，SQL 函数应用等(一共 25 分，好多)
第五题用 C 或 JAVA 写一个五子棋程序
要求写一个函数，当一颗白棋落下的时候，判断白方是否五连珠，棋盘是 1313 大小，用数组 A 表示，0 表示空，1 表示白棋，2 表示黑棋
然后就是一道 20 分值的数据库的题目了，一个表里有三个字段，语言，数学，英语，三门课程的成绩分别为 70、80、58，要你写语句输出三门课程的成绩(不过成绩是要用优秀、及格、不及格来显示的)大于 80 分为优秀、60 分以上为及格、60 分以下为不及格。要求你写出设计的思路，然后再写语句。
最后一部分也是 20 分值的题，有两道题，任选一道，第一道是看程序填空的，考的是递归算法;第二道是用 JAVA 写的，实现折半查找。
世界知名电子企业笔试题4
1：一个函数如下
char *f
{
char a[5]；
char b[5];
a[0]='a';
a[1]='b';
a[2]='c';
a[3]='d';
a[4]='e';
strcpy(b,a);
return b;
}
请问：一：该函数中用a作为一个字符串是否存在问题？
二、该函数返回的b是否可用，为什么？
2：函数如下
void f()
{
char *a;
a=(char*)malloc(5);
strcpy(a,“abc”);
a=“cde”;
free(a);
}
请问：该函数存在哪些问题？
世界知名电子企业笔试题5
电子公司笔试题1
西门子笔试题
1.解释什么是串行通讯，与并行通讯有什么区别，以太网、USB、红外线分别属于何者？
串行通讯的速率是9.6Kpbs代表什么含义？
2.西门子的模拟输入模块能够将传感器的4-20mA电流信号对应线性转化为0-27648的数值，如果在程序中读到一个十六进制的数1FFF，那么传感器的.电流是多少？
3.客户的控制系统使用数字量输出模块，要在输出通道上接一个电流1.2mA的电磁阀，客户认为当输出通道接通再断开后，电磁阀的内部线圈会存储一定的电能，他想通过外部的电路完全释放这部分电能，请问如何设计外部电路？
4.二进制数10000111与10110110进行XOR的运算结果是多少？十六进制数5E与C6之间进行OR的结果是多少？
5.试列举电机调速方法，比较这几种方法。
6.请试分析RS232C与 RS485之间的区别与特征
7.针对连续自动控制系统的常用分析方法有哪些？什么是PID算法，电解个参数分别起到什么什么功能？
8.阅读下面的c代码，写出答案
main
{ int f;
int a[10]={1,2,3,4,5,6,7,8,9,0};
int *p;
for (f=1;f<5；f++)
a[f]++;
printf(“%d/r/n”,a[0]);
printf(“%d/r/n”,a[1]);
printf(“%d/r/n”,a[4]);
printf(“%d/r/n”,a[5]);
printf(“%d/r/n”,a[6]);
}
世界知名电子企业笔试题6
电子商务英语笔试题
(一) 词汇和语法(本大题共20小题，每小题1分，共20分)根据句子的意思选择一个正确的答案，答案标在答题纸上。
1.Flight nineteen from New York and Washington is now arriving at _____.
a. the two gate
b. gate two
c. the gate two
D. second gate
2.Since 1971 there have been two _____ in this city.
a. woman mayors
b. woman mayor
c. women mayor
D. women mayors
3.It rains _____ in Shanghai _____ in Beijing.
a. as often; than
b. more often; than
c. as oftener; as
D. much often; as
4.It _____ for two days and the field were all under water.
a. rained
b. had been raining
c. was raining
D. would have rained
5.A new type of computer is going to _____ next year.
a. turn out
b. being turned out
c. have turned out
D. turned out
6.Having the highest marks in his class,_____.
a. the college offered him a scholarship
b. a scholarship was offered him by the college
c. he was offered a scholarship by the college
D. a college scholarship was offered to him
7.He _____ in London by eleven o'clock, but he started too late.
a. should be
b. must have been
c. ought to have been
D. might have been
8.If you _____ that late movie last night, you wouldn't be sleepy now.
a. hadn't watched
b. didn't watch
c. haven't watched
D. wouldn't have watched
9.It is because English is useful _____.
a. why we study it hard
b. which we study hard
c. what we study hard
D .that we study it hard
10.We do not believe their nice words _____ intimidated by their bluster.
a. so aren't we
b. neither we are
c. we are not
D. nor are we
11.There are _____ benefits in the new system.
a. concise
b. precise
c. tangible
D. metal
12.The time has come for the company to _____ after years of rapid expansion.
a. consist
b. consider
c. consolidate
D. combine
13.It is important for university to keep _____ with the changes in science and technology.
a. step
b. stage
c. space
D. pace
14.Critics _____ the writer with a lack of originality.
a. criticized
b. charged
c. condemned
D. scolded
15.They have _____ themselves as dedicated social workers.
a. distinguished
b. seen
c. defined
D. differed
16.The plane is _____ to take off at 4.
a. enlisted
b. enrolled
c. prompted
D. scheduled
17.People will not believe a person who always _____.
a. magnifies
b. enlarges
c. broadens
D. exaggerates
18.You should sign a contract to make your job situation _____.
a. normal
b. common
c. regular
D. usual
19.All citizens in this nation are _____ to the law.
a. subject
b. object
c. exposed
D. dependent
20.Let's fix a _____ date for the next meeting.
a. infinite
b. plain
c. distinct
D. definite
(二)完型填空(本大题共10小题，每小题1分，共10分)从选择项中选择一个最适合短文的选项。答案标在答题纸上。
Human beings act in a different way from that of animals just because they can speak while animals cannot.___21___ the cleverest animals cannot do things which to us seem very ___22___ and which small children, as soon as they learn to talk, would be able to do.
a German scientist, who performed experiments for many years with big apes, found that his apes could ___23___ his sticks as stools to pull down bananas which they could not reach. But they only used the stick to get a banana when both the banana and the stick were ___24___ view at the same time. If the banana was in front of them and the stick was behind them, they could not use the stick. They could not keep the banana ___25___ enough in mind to look around and then pick up the stick and use it.
the ___26___ for this is clear. We have words for banana and stick which help us to think about these things when they are not in ___27___.Even a small child knowing the words “banana” and “stick” has an idea of their relationship and is able to think “stick” together with “banana” and to remember this long enough to pick the stick ___28___ behind and use it on the banana.
unable to speak, animals cannot keep their knowledge of things ___29___ long. That's why they often interrupt one line of action to do something else and later forget it completely. Human beings, on the other hand, use ___30___ and are able to do one thing continuously.
21.A.If B. Even C. Though D. When
22.A.honest B. foolish C. simple D. evident
23.A.take B. hold C. regard D. use
24.A.in B. beyond C. for D. with
25.A.close B. alive C. long D. complete
26.A.reason B. answer C. truth D. thought
27.A.mind B. thought C. sight D. brain
28.A.in B. at C. around D. from
29.A.before B. for C. after D. since
30.A.knowledge B. language C. mind D. memory
(三)阅读理解(本大题共10小题，每小题2分，共20分)
阅读下面的短文，从A、B、C、D四个选择项中选出一个最佳答案填空，
答案标在答题纸上。
passage 1
there is, perhaps, no other sport in the world quite so exciting as skiing. For those watching, it is a top beauty nothing else can match. For skiers, it is a wonderful personal experience, and a thrilling test of mind, muscle and nerves.
more and more Americans are discovering this thrill for themselves. Not long ago, skiing had no part in the American sport scene. If it were thought of at all, it was purely as a European sport. Then came the 1932 Winter Olympics at Lake Placid, New York. Americans got their first good look at skiing and made for the hills. Today ski trains make regular runs from our cities to the great, white outdoors.
in addition to joy and cheer and excitement, skiing offers something more. It is a sport less expensive and for the young, the act of skiing is often mastered in a very short time.
the special thrill of skiing is expressed by Buddy Werner.“It's all up to you,”he says.“No teammate can help. You're alone. It's against the snow, yourself. You're a brave fighter.”
31.Americans first understood and began skiing ______.
a. about 50 years
b. about 60 years ago
c. not long ago
D. in 1932
32.Besides giving us amusement and pleasure, skiing has some more virtues:______.
a. a sport cheaper and easier to learn
b. a sport fit for both men and women
c. a sport outside, though expensive
D. a sport both on snow and on water
33.According to Buddy Werner, the special thrill of skiing lies in the fact that ______.
a. nobody can help
b. you are skiing with teammates
c. you're skiing on the mountains
D. it can show you are brave
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