招聘笔试题

爱立信常考的笔试真题

选择题


1:异步复接二次群一帧中的插入标志码有

a.4 bit

b.6~7 bit

c.12 bit

d.最多28 bit

2:条件转移指令jnbe产生转移的条件是

a.cf=0 and zf=0

b.cf=0 and zf=1

c.cf=1 and zf=0

d.cf=1 and zf=1

2cm零次群速率为。

a.8kb/s

b.16kb/s

c.32kb/s

d.64kb/s

3:array dw 6, 9, $+4, 10h, 1,$+4

mov ax, array+4

设变量array的偏移量是0084h,上述指令执行后ax中的内容是

a.0009

b.008ch

c.0090h

d.0010h

4:表示过程定义结束的伪指令是

a.endp

b.ends

c.end

d.endm

5:数字光纤传输系统属于

a.基带传输

b.频带传输

c.数字数据传输

d.无线传输

7:设非压缩bcd码al=09h,bl=04h在执行sub al,bl指令后应选的校正指令是

a.daa

b.aas

8.C++类笔试题

求输出的结果

#include

using namespace std;

class base

{

public:

void func(const char str){cout << "base: " << str << endl;}

virtual void func(int num){cout << "base: " << num << endl;}

};

class derived : public base

{

public:

void func(const char str){cout << "derived: " << str << endl;}

void func(int num){cout << "derived: " << num << endl;}

void func(){cout << "the function is in derived!" << endl;}

};

int main()

{

base pb;

derived objd;

pb = objd;

pb->func(11);

pb->func("hello");

// pb->func();

getchar();

return 0;

}

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