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路由信息协议RIP是内部网关协议IGP中使用得最广泛的一种基于 (1) 的协议。RIP规定数据每经过一个路由器，跳数增加1，更新路由表的原则是使到各目的网络的 (2) 。

路由信息协议RIP是内部网关协议IGP中使用得最广泛的一种基于 (1) 的协议。RIP规定数据每经过一个路由器，跳数增加1，更新路由表的原则是使到各目的网络的 (2) 。

为了对下图所示的程序进行覆盖测试，必须适当地选取测试数据。若X，Y是两个变量，可供选择的测试数据组共有Ⅰ，Ⅱ，Ⅲ，Ⅳ四组(如表中给出)，则实现语句覆盖至少应采用的测试数据组是 (1) ；实现条件覆盖至少应采用的测试数据组是 (2) ；实现路径覆盖至少应采用的测试数据组是 (3) 。

为了对下图所示的程序进行覆盖测试，必须适当地选取测试数据。若X，Y是两个变量，可供选择的测试数据组共有Ⅰ，Ⅱ，Ⅲ，Ⅳ四组(如表中给出)，则实现语句覆盖至少应采用的测试数据组是 (1) ；实现条件覆盖至少应采用的测试数据组是 (2) ；实现路径覆盖至少应采用的测试数据组是 (3) 。

为了对下图所示的程序进行覆盖测试，必须适当地选取测试数据。若X，Y是两个变量，可供选择的测试数据组共有Ⅰ，Ⅱ，Ⅲ，Ⅳ四组(如表中给出)，则实现语句覆盖至少应采用的测试数据组是 (1) ；实现条件覆盖至少应采用的测试数据组是 (2) ；实现路径覆盖至少应采用的测试数据组是 (3) 。

两个公司希望通过Internet进行安全通信保证从信息源到目的地之间的数据传输以密文形式出现，而且公司不希望由于在传输节点使用特殊的安全单元而增加开支，最合适的加密方式是 (1) ，使用的会话密钥算法应该是 (2) 。

两个公司希望通过Internet进行安全通信保证从信息源到目的地之间的数据传输以密文形式出现，而且公司不希望由于在传输节点使用特殊的安全单元而增加开支，最合适的加密方式是 (1) ，使用的会话密钥算法应该是 (2) 。

某虚拟存储器的用户编程空间共32个页面，每页为1KB，内存为16KB。假定某时刻一用户页表中已调入内存的页面的页号和物理块号的对照表如下：
则逻辑地OA5C（H）所对应的物理地址是（）。

一般来说，Cache的功能 (1) 。在下列cache 替换算法中，平均命中率最高的是 (2) 。某32位计算机的cache容量为16KB，cache块的大小为16B，若主存与cache的地址映射采用直接映射方式，则主存地址为6C6EAF(十六进制)的单元装入的cache地址为 (3) 。

一般来说，Cache的功能 (1) 。在下列cache 替换算法中，平均命中率最高的是 (2) 。某32位计算机的cache容量为16KB，cache块的大小为16B，若主存与cache的地址映射采用直接映射方式，则主存地址为6C6EAF(十六进制)的单元装入的cache地址为 (3) 。

一般来说，Cache的功能 (1) 。在下列cache 替换算法中，平均命中率最高的是 (2) 。某32位计算机的cache容量为16KB，cache块的大小为16B，若主存与cache的地址映射采用直接映射方式，则主存地址为6C6EAF(十六进制)的单元装入的cache地址为 (3) 。

操作系统为了解决进程间合作和资源共享所带来的同步与互斥问题，通常采用的一种方法是使用 (1) 。某系统中有3个并发进程，都需要同类资源4个，试问该系统不会发生死锁的最少资源数是 (2) 。

URL根目录与服务器本地目录之间的映射关系是通过指令 (1) 设定；如果允许以“http://www.x.com/～ username”方式访问用户的个人主页，必须通过 (2) 指令设置个人主页文档所在的目录。

采用可变长子网掩码技术可以把大的网络分成小的子网，例如把子网掩码为255.255.0.0的网络69.16.0.0分为两个子网，假设第一个子网为69.16.0.0/17，则第二个子网为 (1) 。假设用户Xl有4000台主机，则至少应给他分配 (2) 个C类网络。

URL根目录与服务器本地目录之间的映射关系是通过指令 (1) 设定；如果允许以“http://www.x.com/～ username”方式访问用户的个人主页，必须通过 (2) 指令设置个人主页文档所在的目录。

操作系统为了解决进程间合作和资源共享所带来的同步与互斥问题，通常采用的一种方法是使用 (1) 。某系统中有3个并发进程，都需要同类资源4个，试问该系统不会发生死锁的最少资源数是 (2) 。

采用可变长子网掩码技术可以把大的网络分成小的子网，例如把子网掩码为255.255.0.0的网络69.16.0.0分为两个子网，假设第一个子网为69.16.0.0/17，则第二个子网为 (1) 。假设用户Xl有4000台主机，则至少应给他分配 (2) 个C类网络。

为了加快路由器处理数据报的速度，IPv6首部取消了 (1) 字段，而通过数据链路层和运输层来完成差错检验功能。为了便于地址阅读，IPv6使用 (2) 记法。在IPv4向 IPv6过渡的方案中；当IPv6数据报进入IPv4网络时，将IPv6数据报封装成为IPv4数据报进行传输的方案是 (3) 。

在Internet 与EDI(电子数据交换)的四种结合方式中，最流行的方式为 (1) 目前普遍采用的EDI通信模式为 (2) 。

为了加快路由器处理数据报的速度，IPv6首部取消了 (1) 字段，而通过数据链路层和运输层来完成差错检验功能。为了便于地址阅读，IPv6使用 (2) 记法。在IPv4向 IPv6过渡的方案中；当IPv6数据报进入IPv4网络时，将IPv6数据报封装成为IPv4数据报进行传输的方案是 (3) 。

在Internet 与EDI(电子数据交换)的四种结合方式中，最流行的方式为 (1) 目前普遍采用的EDI通信模式为 (2) 。

为了加快路由器处理数据报的速度，IPv6首部取消了 (1) 字段，而通过数据链路层和运输层来完成差错检验功能。为了便于地址阅读，IPv6使用 (2) 记法。在IPv4向 IPv6过渡的方案中；当IPv6数据报进入IPv4网络时，将IPv6数据报封装成为IPv4数据报进行传输的方案是 (3) 。

设命题公式G=（P→4Q），H=P→（），则G与H的关系是（）。

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
In low - speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the (1) between sending the notification and notification arriving at the source, thousands of additional (2) may arrive. In ATM network, a major tool for preventing (3) is (4) control. When a host wants a new virtual (5) , it must describe the traffic to be offered and the service expected.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
In low - speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the (1) between sending the notification and notification arriving at the source, thousands of additional (2) may arrive. In ATM network, a major tool for preventing (3) is (4) control. When a host wants a new virtual (5) , it must describe the traffic to be offered and the service expected.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
In low - speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the (1) between sending the notification and notification arriving at the source, thousands of additional (2) may arrive. In ATM network, a major tool for preventing (3) is (4) control. When a host wants a new virtual (5) , it must describe the traffic to be offered and the service expected.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
In low - speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the (1) between sending the notification and notification arriving at the source, thousands of additional (2) may arrive. In ATM network, a major tool for preventing (3) is (4) control. When a host wants a new virtual (5) , it must describe the traffic to be offered and the service expected.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
In low - speed network, it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the (1) between sending the notification and notification arriving at the source, thousands of additional (2) may arrive. In ATM network, a major tool for preventing (3) is (4) control. When a host wants a new virtual (5) , it must describe the traffic to be offered and the service expected.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
To a router, a flow is a (1) of packets that share the same characterstics, such as traveling the same (2) , using the same (3) , having the same kind of security, and so on. A router that supports the handling of flow labels has a (4) table. The table has an entry for each Active flow label; each entry defines the (5) required by the corresponding flow label.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
To a router, a flow is a (1) of packets that share the same characterstics, such as traveling the same (2) , using the same (3) , having the same kind of security, and so on. A router that supports the handling of flow labels has a (4) table. The table has an entry for each Active flow label; each entry defines the (5) required by the corresponding flow label.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
To a router, a flow is a (1) of packets that share the same characterstics, such as traveling the same (2) , using the same (3) , having the same kind of security, and so on. A router that supports the handling of flow labels has a (4) table. The table has an entry for each Active flow label; each entry defines the (5) required by the corresponding flow label.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
To a router, a flow is a (1) of packets that share the same characterstics, such as traveling the same (2) , using the same (3) , having the same kind of security, and so on. A router that supports the handling of flow labels has a (4) table. The table has an entry for each Active flow label; each entry defines the (5) required by the corresponding flow label.

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
To a router, a flow is a (1) of packets that share the same characterstics, such as traveling the same (2) , using the same (3) , having the same kind of security, and so on. A router that supports the handling of flow labels has a (4) table. The table has an entry for each Active flow label; each entry defines the (5) required by the corresponding flow label.