下面是范文網(wǎng)小編分享的世界知名電子企業(yè)筆試題6篇，以供借鑒。
世界知名電子企業(yè)筆試題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?
世界知名電子企業(yè)筆試題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?
世界知名電子企業(yè)筆試題3
恒生電子筆試題
以下純屬參考，未必這么考
請大家一定要注意 oracle 數(shù)據(jù)庫方面的知識
現(xiàn)在用人單位在 java 和 c的筆試上基本上難不倒我們但在一些對于數(shù)據(jù)庫有比較高要求的軟件企業(yè)，比如做金融很多時候，我們會有 oracle 數(shù)據(jù)庫方面受挫，從而造成在薪資水平上受壓制，甚至失去這個機會，
1.對于一個數(shù)據(jù)庫表，可以有 1 個主鍵和 多 個外鍵。
2.為了防止一個用戶的工作不適當(dāng)?shù)挠绊懥硪粋€用戶，應(yīng)該采取(c)
a完整控制 b，安全性控制 c，并發(fā)控制 d，訪問控制
3.關(guān)系數(shù)據(jù)庫中，實現(xiàn)實體之間的聯(lián)系是通過表與表之間的(d)
a，公共索引 b，公共存儲 c，公共元組 d，公共屬性
4，sql 語言集數(shù)據(jù)查詢，數(shù)據(jù)操縱，數(shù)據(jù)定義，數(shù)據(jù)控制功能與一體，充分體現(xiàn)了關(guān)系數(shù)據(jù)庫語言的特點和優(yōu)點。
5，觸發(fā)器可以在 插入，刪除或修改特定表中的數(shù)據(jù) 中的一種或幾種操作發(fā)生時自動執(zhí)行。
6，請列數(shù)據(jù)庫編程中連接 sql server 數(shù)據(jù)庫的三中不同技術(shù)：dsn，dsn-less，oledb
7，請舉出實體間具有一對一，一對多，多對多聯(lián)系的例子。
8，簡要說明事務(wù)的原子性?事務(wù)的原子性指的是，事務(wù)中包含的程序作為數(shù)據(jù)庫的邏輯工作單位，它所做的對數(shù)據(jù)修改操作要么全部執(zhí)行，要么完全不執(zhí)行。這種特性稱為原子性。
事務(wù)的原子性要求，如果把一個事務(wù)可看作是一個程序，它要么完整的被執(zhí)行，要么完全不執(zhí)行。就是說事務(wù)的操縱序列或者完全應(yīng)用到數(shù)據(jù)庫或者完全不影響數(shù)據(jù)庫。這種特性稱為原子性。
假如用戶在一個事務(wù)內(nèi)完成了對數(shù)據(jù)庫的更新，這時所有的更新對外部世界必須是可見的，或者完全沒有更新。前者稱事務(wù)已提交，后者稱事務(wù)撤消(或流產(chǎn)) 。dbms必須確保由成功提交的.事務(wù)完成的所有操縱在數(shù)據(jù)庫內(nèi)有完全的反映，而失敗的事務(wù)對數(shù)據(jù)庫完全沒有影響。
9，簡要說明為什么存儲過程執(zhí)行速度比普通的 sql 更快而且減少網(wǎng)絡(luò)流量?誰都知道存儲過程是預(yù)編譯的存儲過程其實就是能完成一定操作的一組 sql 語句，只不過這組語句是放在數(shù)據(jù)庫中的這里我們只談 sql server。如果我們通過創(chuàng)建存儲過程以及在 asp 中調(diào)用存儲過程，就可以避免將 sql 語句同 asp 代碼混雜在一起。這樣做的好處至少有三個：
第一、大大提高效率。存儲過程本身的執(zhí)行速度非?？?，而且，調(diào)用存儲過程可以大大減少同數(shù)據(jù)庫的交互次數(shù)。
第二、提高安全性。假如將 sql 語句混合在 asp 代碼中，一旦代碼失密，同時也就意味著庫結(jié)構(gòu)失密。
第三、有利于 sql 語句的重用。
應(yīng)用題：0s
studentbaa
學(xué)號 姓名 性別 年齡 所在系
sno sname ssex sage sdept
courseb
課程編號 課程名 學(xué)分
cno cname ccredit
學(xué)號 課程編號 成績
sno cno gradepr
1，查詢所有學(xué)過課程“數(shù)據(jù)庫”的學(xué)生姓名，并且按年齡從大到小排序select stu.sname stu.sage from student stucoursesc where stu.ame‘?dāng)?shù)據(jù)庫‘
2，查詢平均分?jǐn)?shù)為 85 以上的學(xué)生名單和平均得分select stu.sname from student stusc where stu.snosc.sno and avgsc.grade85
3，新增加一門 2 個學(xué)分的課程，編原理 課程編號為 1005 (char 型)insert into coursecnocnameccredit values‘1005’”編譯原理” ，2fapos
4，在選修關(guān)系 sc 表中，建立序號和課程編號的唯一索引，
5，學(xué)生信息中，要增加身份證號碼字段 類型為 char 長度 18 非空alter table student addcredit_id char18 not null;
6，刪除 sc 表中學(xué)號已經(jīng)不存在的記錄delete from sc where sno not inselect maxrowid from sc group by snocnograde
7，寫出 sql 語句得到下列結(jié)果
所在系 男生人數(shù) 女生人數(shù) 總?cè)藬?shù)
select sdeptcount from student group by ssex
所在系 15《年齡〈18 18〈年齡〈20 的人數(shù) 其他年齡的人數(shù) 總?cè)藬?shù)
第一題是綜合題，
1、畢業(yè)后想從事什么樣的工作，為什么?
2、你父母對你的教育上，哪些造就了你現(xiàn)在的個性特點?
3、你的技術(shù)專長是什么?
4、你的學(xué)習(xí)成績怎樣?拿過什么獎勵金?
第二題是不定項選擇題
1、給你一串出棧序列，判斷棧至少長多少
2、給出先序中序判斷后續(xù)
3、字符數(shù)組賦值問題，包括 for 循環(huán)和 memset 和另一個 dzero(好像是這個函數(shù))
4、linux/Unix 中允許讀寫但不允許執(zhí)行的命令(666 跟 777)
5、關(guān)于靜態(tài)變量說法正確的是哪些
6、關(guān)于數(shù)據(jù)庫中索引作用的題
7、進程的并發(fā)會影響數(shù)據(jù)一致性的(讀臟數(shù)據(jù)等)
第三題填空題
1、操作系統(tǒng)進程高級通信有哪些方式
2、給出一段代碼，問這段代碼有什么問題(指針為賦初值)
3、給出 IP，求子網(wǎng)掩碼和可分配的主機數(shù)
4、數(shù)據(jù)庫中事務(wù)的四個特點(原子性、一致性、獨立性/隔離性、持久性)
第四題數(shù)據(jù)庫操作題
大致就是給出三個表，要求寫 SQL 語句，包括視圖建立，增刪改查，SQL 函數(shù)應(yīng)用等(一共 25 分，好多)
第五題用 C 或 JAVA 寫一個五子棋程序
要求寫一個函數(shù)，當(dāng)一顆白棋落下的時候，判斷白方是否五連珠，棋盤是 1313 大小，用數(shù)組 A 表示，0 表示空，1 表示白棋，2 表示黑棋
然后就是一道 20 分值的數(shù)據(jù)庫的題目了，一個表里有三個字段，語言，數(shù)學(xué)，英語，三門課程的成績分別為 70、80、58，要你寫語句輸出三門課程的成績(不過成績是要用優(yōu)秀、及格、不及格來顯示的)大于 80 分為優(yōu)秀、60 分以上為及格、60 分以下為不及格。要求你寫出設(shè)計的思路，然后再寫語句。
最后一部分也是 20 分值的題，有兩道題，任選一道，第一道是看程序填空的，考的是遞歸算法;第二道是用 JAVA 寫的，實現(xiàn)折半查找。
世界知名電子企業(yè)筆試題4
1：一個函數(shù)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;
}
請問：一：該函數(shù)中用a作為一個字符串是否存在問題？
二、該函數(shù)返回的b是否可用，為什么？
2：函數(shù)如下
void f()
{
char *a;
a=(char*)malloc(5);
strcpy(a,“abc”);
a=“cde”;
free(a);
}
請問：該函數(shù)存在哪些問題？
世界知名電子企業(yè)筆試題5
電子公司筆試題1
西門子筆試題
1.解釋什么是串行通訊，與并行通訊有什么區(qū)別，以太網(wǎng)、USB、紅外線分別屬于何者？
串行通訊的速率是9.6Kpbs代表什么含義？
2.西門子的模擬輸入模塊能夠?qū)鞲衅鞯?-20mA電流信號對應(yīng)線性轉(zhuǎn)化為0-27648的數(shù)值，如果在程序中讀到一個十六進制的數(shù)1FFF，那么傳感器的.電流是多少？
3.客戶的控制系統(tǒng)使用數(shù)字量輸出模塊，要在輸出通道上接一個電流1.2mA的電磁閥，客戶認(rèn)為當(dāng)輸出通道接通再斷開后，電磁閥的內(nèi)部線圈會存儲一定的電能，他想通過外部的電路完全釋放這部分電能，請問如何設(shè)計外部電路？
4.二進制數(shù)10000111與10110110進行XOR的運算結(jié)果是多少？十六進制數(shù)5E與C6之間進行OR的結(jié)果是多少？
5.試列舉電機調(diào)速方法，比較這幾種方法。
6.請試分析RS232C與 RS485之間的區(qū)別與特征
7.針對連續(xù)自動控制系統(tǒng)的常用分析方法有哪些？什么是PID算法，電解個參數(shù)分別起到什么什么功能？
8.閱讀下面的c代碼，寫出答案
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]);
}
世界知名電子企業(yè)筆試題6
電子商務(wù)英語筆試題
(一) 詞匯和語法(本大題共20小題，每小題1分，共20分)根據(jù)句子的意思選擇一個正確的答案，答案標(biāo)在答題紙上。
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(本大題共10小題，每小題1分，共10分)從選擇項中選擇一個最適合短文的選項。答案標(biāo)在答題紙上。
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)閱讀理解(本大題共10小題，每小題2分，共20分)
閱讀下面的短文，從A、B、C、D四個選擇項中選出一個最佳答案填空，
答案標(biāo)在答題紙上。
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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