Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?()A.NASB.FirewallC.HubD.Bridge

题目
Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?()

A.NAS

B.Firewall

C.Hub

D.Bridge

相似考题

1.A VPN is physically () but virtually ()A、none of the aboveB、public; hybridC、private; publicD、public; private

2.有如下程序:includeusing namespqce Std;class TestClass{private;Char C;public;Tes有如下程序： #include＜iostream＞ using namespqce Std； class TestClass { private； Char C； public； TestClass(char n)：c(n){} ～TestClass() { cout＜＜c； }； class TestClassl：public TestClass { private： Char C； public：A．xyB．yxC．xD．y

3.Most IP layer-based proxy mechanisms，such as network address translation (NAT)，only supportuni-directional proxy，from the internal network to external network(the Interned．The proxvestablishes the communication channel by (71) IP addresses．The IP addresses must be (72) ．These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels，such as，multimedia applications．IP layer-based proxy mechanisms need additional software (73) for each application that uses (74) channels． SOCKS identifies communication targets through domain names，overcoming the restriction of Usina private IP addresses．SOCKS can use domain names to establish communication between separate LANs，with (75) IP addresses．(66)A．manufacturingB．manipulatingC．conductD．implement

4.有以下程序:includeusing namespace std;class A{private:int a;public:A(int i){a=i有以下程序： #include＜iostream＞ using namespace std； class A {private： int a； public： A(int i) {a＝i;} void disp() {cout＜＜a＜＜“，”；}}； class B {private： int b； public： B(int j) {b=j;} void disp() {cout＜＜b＜＜“，”；A．10，10，10B．10，12，14C．8，10，12D．8，12，10

更多“Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?() ”相关问题

  • 第1题：

    访问修饰符作用范围由大到小是( )

    A)private-default-protected-public

    B)public-default-protected-private

    C)private-protected-default-public

    D)public-protected-default-private


    答案：D

  • 第2题：

    Most IP layer-based proxy mechanisms, such as network address translation(NAT), only support uni-directional proxy, from the internal network to external network(the Internet). The proxy establishes the communication channel by(66)IP addresses. The IP addresses must be(67). These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels, such as, multimedia applications. IP layer-based proxy mechanisms need additional software(68)for each application that uses(69)channels. SOCKS identifies communication targets through domain names, overcoming the restriction of using private IP addresses. SOCKS can use domain names to establish communication between separate LANs, with(70)IP addresses.

    A．manufacturing

    B．manipulating

    C．conduct

    D．implement


    正确答案：B

  • 第3题：

    判断下面程序编译是否正确，如果错误简要说明原因 class B{ public: B（int a){ x=a; } private: int x; }; class D : public B{ public: D（int a ) : y（a){ } private: int y; };


    #define b 2 int x = b; void main() { x++; }

  • 第4题：

    若有以下程序:includeusing namespace std;class A{private:int a;public:A(int i){a

    若有以下程序： #include＜iostream＞ using namespace std； class A {private： int a； public： A(int i) {a=i;} void disp() {cout＜＜a＜＜“，”；}}； class B {private： int b； public： B(int j {b＝j；} void disp() {cout＜＜b＜＜

    A．10，10，10

    B．10，12，14

    C．8，10，12

    D．8，12，10


    正确答案：D
    解析： 本题考查派生类构造函数的使用。派生类C具有多重继承关系，所以在派生类C的构造函数中应该包含基类A和B的成员初始化列表。

  • 第5题：

    下列描述中，错误的是（）。

    A．基类的protected成员在public派生类中仍然是protected成员

    B．基类的private成员在public派生类中是不可访问的

    C．基类public成员在private派生类中是private成员

    D．基类public成员在protected派生类中仍是public成员


    派生类中继承的基类成员的访问权限到派生类保持不变。

  • 第6题：

    访问修饰符作用范围由大到小是

    A．private-default-protected-public

    B．public-default-protected-private

    C．private-protected-default-public

    D．public-protected-default-private


    D

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