阿尔卡特(中国)面试题目和面试技巧 Alcatel
全部用C语言
1、自己定义数据结构,写出程序
在一个单向联表中,往 I 位置插入一个节点
2、自己定义数据结构,写出程序
二叉树的前序遍历
3、不允许使用系统时间,
写出一个随机数生成函数。
都是基本题目,
非常简单,
就是要注意时间
虽然鬼子没有讲时间限制,
但是实际上有的
不让应聘者知道
各位好运!
以上是阿尔卡特(中国)的面试
苏州阿尔卡特没有让偶去面试的说
贝尔的题
First Section:Common to all
partI
1.Why is non-linear quantization method adopted in A/D transformation?
A) To reduce quantization errors
B) Because most of signals are non-linear
C) Both A and B
D) Neither A or B
2. About digital signal:
A) It is discrete in tim domain
B) It has a limited number of values
C) Both A and B
D) Neither A or B
3 In order to restore the digital original signal, the sampling frequency
F has the following constrains:
A) F<=2Fs
B) F>=2Fs
C) F>Fs
D) F<Fs
4.the procedure of digitalization has the following seqence:
A) Sampling,quantization,coding
B) Sampling,coding,quatization
C) Quatization,coding,sampling
D) coding,quantization,sampling
5 the purpose of coding is
A) To improve SNR provided the bit rate is constant
B) To minimise bit rate proivided the constant SNR is given
C) Both A and B
D) Neither A or B
6 At present time is PCM communication ,the sampling freqency to
speech signals is
A) 4k
B) 8k
c) 16k
d) 20k
7 In HDLC frame ,synchronous code is
A) 01111110
B) 01110010
C) 11110000
D) 10101010
8 A multiframe of 30/32 channel PCM is made up of 16 consecutive frames.
the time length of such a multiframe is
A) 2ms
B) 1ms
C) 250us
D) 125us
9 the network synchronous mode adoped in the digital commucation network in
china
is
A) Quasistable synchronous mode
B) Master-Slave mode
C) Master-Slave mode combined with quasistable synchronous mode
D) Mutual synchronous mode
10 About the advantage of using digital switch and tansmission instead of an
alogue ons,
with one is wrong
A) Economy
B) Reliability
C) Save of bandwith
D) Improved transmission quality
E) Integration of speech and data transmission
Part II
Make a judgement True or False
1. Parity code can both check and correct errors
2. In 30/32 channel PCM frame struct, every frame transmits frame
synchronous code in TS0(first time slot)
3. The analogue subscriber speech signals are transmitted and
received via 2 bi-directional wires ,but the digital ones via 4
one-directional wires
4.A distributed swicth system has higer reliability and security than
a central control
5.cmm is capacity maturity model
Part III
1.请写出中断执行一般流程
2 下面是一些基本的数字电路问题,简要回答
1)什么是setup和holdup 时间
2)什么是竞争和冒险现象,怎么判断,如何消除
3) 什么是同步逻辑和异步逻辑
4) 你知道哪些常用的逻辑电平,TTL和CMOS电平可以直接互连么
5)什么是“线与”逻辑,要实现它,再硬件特性上又什么具体要求
6。。。。。
7)已给出基地址/cs0=F000H和16位地址线A[15:0],译出三个外设片选,其
地址为/cs1=F100H /cs2=F200H /cs3=F300H /表示低有效
3。请分别画出osi的参考模型和TCP/IP的参考模型
4。请列举通信行业中常用的不同体系构架的cpu种类,并举例说明
附加题
请谈谈你对SDH的理解
1)SDH相对PDH的特性差异
2)SDH中不同的低速等级数据速率的映射关系(请以STM-1为例)
3)请画出STM-1的帧结构图
第二部分:面试经验谈
在沟通中提升管理 ——访阿尔卡特人事经理
记者:你认为员工的岗位周期是多长,如何使人才最大限度发挥能力?
袁一民:人才成长是有规律的,人的才能增长也是有周期性的,通常一个人在一个岗位上工作的时间以三至四年为宜。因此,我们每年都会根据考核结果,适时地调整那些优秀人才的岗位和职位,这对于优秀员工不断提高、继续成长大有益处,也是造就复合型人才的有效方法之一。
记者:公司在录用人时如何考虑他的职业生涯选择?
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