A technician is searching a knowledge base for the correct m

题目
单选题
A technician is searching a knowledge base for the correct method of removing a virus. The knowledge base states that the key: HKEY_LOCAL_MACHINE/MICROSOFT/SOFTWARE/CURRENTVERSION/PAK needs to be deleted. Which of the following should the technician use to delete the key?()
A

MSCONFIG

B

DEBUG

C

EVENTVIEWER

D

REGEDIT

参考答案和解析
正确答案: C
解析: 暂无解析
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相似问题和答案

第1题:

有如下程序:includeusing namespace std;class Base{int x;public:Base(int n=0):x(n

有如下程序: #include<iostream> using namespace std; class Base{ int x; public: Base(int n=0):x(n){cout<<n;} int getX( )const{return x;} }; class Derived:public Base{ int y; public: Derived(int m,int n):y(m),Base(n){tout<<m;} Derived(int m):y(m){cout<<m;} }; int main( ){ Derived dl(3),d2(5,7); return 0; } 程序的输出结果是

A.375

B.357

C.0375

D.0357


正确答案:C
解析:有如下程序:  #includeiostream>  using namespace std;  class Base{  int x;  public:  Base(int n=0):x(n){coutn;}  int getX( )const{return x;}  };  class Derived:public Base{  int y;  public:  Derived(int m,int n):y(m),Base(n){toutm;}  Derived(int m):y(m){coutm;}  };  int main( ){  Derived dl(3),d2(5,7);  return 0;  }  程序的输出结果是  

第2题:

下列程序的输出结果是【 】。

include<iostream>

using namespace std;

class Base{

public:

int m,n;

Base(int i,int j):m(i),n(j){}

};

class Derived:public Base{

public:

int m,k,;

Derived(int i,int j):Base(i,j),m(i+1),k(j+1){}

};

int main(){

Derived d(1,5);

cout<<d.m<<d.k<<d.n;

return 0;

}


正确答案:265
265 解析:本题主要考查对基类与派生类的重名成员的掌握。如果在派生类中定义了与基类同名数据成员,那么在派生类中对重名成员访问时,屏蔽基类的同名成员。如果要在派生类中使用基类的同名成员,可以显式地使用作用域运算符指定:类名::成员。

第3题:

What are you doing? I'm _____the bedroom for my wallet.

A.looking

B.finding

C.searching

D.searching for


参考答案:C

第4题:

A frustrated and angry customer calls in with a system that does not work. Which of the following is the FIRST course of action for a technician to take?()

A. Transfer the customer to another technician, who can allocate more time to the issue.

B. Maintain a positive attitude and offer them the cheapest solution possible to satisfy them.

C. Listen to what the customer has to say and calmly recommend the best course of action.

D. Use technical language to demonstrate knowledge and expertise to the customer.


参考答案:C

第5题:

下面的光纤以太网标准中,支持1000m以上传输距离的是__(65)__。

A.1000BASE-FX

B.1000BASE-CX

C.1000BASE-SX

D.1000BASE-LX


正确答案:D
1000BASE-FX是千兆光纤以太网接口,支持500米传输距离。1000BASE-CX对应于802.3z标准,采用的是150Ω平衡屏蔽双绞线(STP)。最大传输距离25米,使用9芯D型连接器连接电缆。1000BASE-CX采用8B/10B编码方式1000BASE-CX适用于交换机之间的连接,尤其适用于主干交换机和主服务器之间的短距离连接。1000BASE-SX标准只支持多模光纤介质,最大传输距离为550米。1000BASE-LX标准支持多摸摸光纤传输介质,传输距离为550米。同时该标准还支持单模光纤传输介质,其最最大传输距离为5000米。

第6题:

Artificial intelligence (AI) ,an interdisciplinary field, is usually regarded as a branch of computer science, dealing with models and systems for the performance of functions generally associated with human intelligence, such as(71)and learning.In AI, knowledge-based system is an information(72)system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base. Moreover, some knowledge-based systems have learning capabilities. Expert system (ES) indicates the knowledge-based system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base developed from human(73). Some expert systems are able to(74)their knowledge base and develop new inference rules based on their experience with previous problems. The term "expert system" is sometimes used(75)with "knowledge-based system", but should be taken to emphasize expert knowledge.

A.inferring

B.reasoning

C.deriving

D.proving


正确答案:B

第7题:

有如下程序: include using namespace std; class Base{ int x; pu

有如下程序: #include<iostream> using namespace std; class Base{ int x; public: Base(int n=0):x(n){cout<<n;) int getX()const{return x;} }; class Derived:public Base{ int y; public: Derived(int m,int n):y(m,)Base(n){cout<<m;} Derived(int m):y(m){cout<<m;} }; int main(){ Derived d1(3),d2(5,7) return 0; }运行时的输出结果是

A.375

B.357

C.375

D.357


正确答案:C

第8题:

The search engines work by means of _________.

A. arranging links to the Internet

B. submitting specific search term

C. updating a knowledge database

D. searching engine spiders


正确答案:B
细节推理题。从最后一段“They, to not categorize links to web places like web directories do but they allow users to’ search the Internet’ using specific search terms.”(它们不像网页目录那样可以将许多信息分类联系在一起,但是它们允许人们使用特定的搜索术语“在网上查找资料”。)得出选项B(submitting specific search terms使用固定的搜索术语)为正确答案。

第9题:

A technician is testing a power supply for correct output voltages at the HDD power connector.Which of the following voltages should the technician expect for a correctly working power supply?()

A.6V

B.9V

C.12V

D.24V


参考答案:C

第10题:

下列程序的输出结果是______。 include using namespace std; class base { public: in

下列程序的输出结果是______。

include<iostream>

using namespace std;

class base

{

public:

int n;

base(int x){n=x;}

virtual void set(int m){n=m;cout<<n<<'';}

};

class deriveA:public base

{

public:

deriveA(int x):base(x){}

void set(int m){n+=m;cout<<n<<'';}

};

class deriveB:public base

{

public:

deriveB(int x):base(x){}

void set(int m){n+=m;cout<<n<<'';}

};

int main( )

{

deriveA d1(1);

deriveB.d2(3);

base*pbase;

pbase=&d1;

pbase->set(1);

pbase=&d2;

pbase->set(2);

return 0;

}


正确答案:25
25 解析:本题考核虚函数的定义和调用。在C++中,一个基类指针(或引用)可以用来指向它的派生类对象,而且通过这样的指针(或引用)调用虚函数时,被调用的是该指针(或引用)实际所指向的对象类的那个重定义版本。题中基类成员函数set( )被定义成虚函数,而且其派生类 deriveA和deriveB都有函数set( )的重定义版本,所以通过指针pbase的两次调用分别调用的是派生类deriveA和deriveB中定义的版本,即输出25。

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