软考中级网络工程师真题含答案解析
（64）A.display current-configuration
C.display stp brief
B.display ip interface brief D.display rip 1 route
●下图所示的网络拓扑中配置了RIP协议，且RIP协议已更新完成，下表所示为AR2
路由器上查看到的路由信息。
软考中级网络工程师真题含答案解析
从查看到的路由信息可以判断（65）， 造成故障的原因是（66）。 （65）A.在AR2上ping 172.16.0.1丢包
C.在AR1上ping 172.16.1.1丢包
B.在AR1上ping 3.3.3.3丢包 D.在AR3上ping 1.1.1.1丢包
（66）A.在AR1上环回地址172.16.0.1配置错误
B.在AR3上环回地址172.16.1.1配置错误 C.RIPv1不支持无类网络
D.RIPv2不支持无类网络
●下面关于路由器的描述中，正确的是（67）。
（67）A.路由器中串口与以太口必须是成对的
B.路由器中串口与以太口的IP地址必须在同一网段 C.路由器的串口之间通常是点对点连接 D.路由器的以太口之间必须是点对点连接
●PGP的功能中不包括（68）。
（68）A.邮件压缩
B.发送者身份认证
C.邮件加密 D.邮件完整性认证
软考中级网络工程师真题含答案解析
●如果DHCP客户端发现分配的IP地址已经被使用，客户端向服务器发出（69）报文，
拒绝该IP地址。
（69）A.DHCP Release
B.DHCP Decline
C.DHCP Nack
D.DHCP Renew
●在层次化园区网络设计中，（70）是汇聚层的功能。
（70）A.高速数据传输
B.出口路由
C.广播域的定义 D.MAC地址过滤
●With circuit switching, a （71）path is established between two stations for
communication . Switching and transmission resources within the network are （72）for the exclusive use of the circuit for the duration of the connection . The connection is（73）：Once it is established ，it appears to attached devices as if there were a direct connection. Packet switching was designed to provide a more efficient facility than circuit switching for（74）data traffic. Each packet contains some portion of the user data plus control information needed for proper functioning of the network. A key distinguishing element of packet-switching networks is whether the internal operation is datagram or virtual circuit . With internal virtual circuits,a route is defined between two endpoints and all packets for that virtual circuit follow the（75）route, With internal datagrams,each packet is treated independently,and packets intended for the same destination may follow different routes.
（71）A.unique
B.dedicated B.abandoned B.direct B.bursty
C.nondedicated D.independent C.reserved C.indirect C.limited C.single
D.broken D.transparent D.abundant D.multiple
（72）A.discarded （73）A.indistinct （74）A.casual （75）A.same
B.different
【软考中级网络工程师真题含答案解析】2018年上半年 网络工程师 基础知识
