R表示该路由条目的来源是RIP;
172.16.8.0表示目标网段或子网;
172.16.7.9表示该路由条目的下一跳地址;
00:00:23表示该路由条目的老化时间;
第1题:
若路由器显示的路由信息如下,则最后一行路由信息是____得到的。 R3show ip route Gateway of last resort is not set 192.168.0.0/24 is subnetted,6 subnets C 192.168.1.0 is directly connected,Ethernet0 C 192.168.65.0 is directly connected,Serial0 C 192.168.67.0 is directly connected,Seriall R 192.168.69.0 [120/1] via 192.168.67.2,00:00:15,Seriall [120/1] via 192.168.65.2,00:00:24,Serial0 R 192.168.5.0[120/1] via 192.168.07.2,00:00:15,Seriall R 192.168.3.0[120/1] via 192.168.65.2,00:00:24,Serial0
A.串行口直接连接的
B.由路由协议发现的
C.操作员手工配置的
D.以太网端口直连的
第2题:
在该条路由信中,路由的度量值是多少()R192.168.3.0/24[120/10]via192.168.2.2,00:00:30,Serial0/0
A.5
B.10
C.24
D.120
第3题:
( 24 )下列路由表中错误的路由表项是
A ) C 212.112.7.0/24 is directly connected,212.112.7.1
B ) S 167.105.125.128 [1/0] via 202.112.7.1
C ) O 222.29.2.0/24 [110/3] via 162.105.1.145,00:13:43,Vlan1
D ) OEI 202.37.140.0/28 [110/22] via 162.105.1.145,00:13:43,Vlan1
第4题:
下列选项中,不会出现在Cisc0路由器路由表中的是( )。
A.S 167.105.125.128[I/0]via 202.112.7.1
B.C 212.1 12.37.16 is directly connected,POS3/O
C.S*0.0.0.0(maskis 255.255.255.255)[I/0]via202.112.7.2
D.O El 20"2.120.232.0/25[110/23]via 202.112.1.131,00:03:02,FastEthemet4/1
第5题:
网络配置如下图所示:
其中某设备路由表信息如下:
C 192.168.1.0/24 is directly connected,FastEthemet0/0
R 192.168.3.0/24[120/1]via 192.168.65.2,00:00:04,Serial2/0
R 192.168.5.0/24[120/2]via 192.168.65.2,00:00:04,Serial2/0
C 192.168.65.0/24 is directly connected,Sefial2/O
C 192.168.67.0/24 is directly connected,Serial3/0
R 192.168.69.0/24 1 120/1]via 192.168.65.2,00:OO:04,SeriM2/0
则该设备为( ),从该设备到PCI经历的路径为( )。路由器R2接口s2可能的IP地址为( )。
A.路由器R0
B.路由器R1
C.路由器R2
D.计算机PCI
第6题:
网络连接和IP地址分配如图4-2所示,并且配置了RIPv2路由协议。
如果在路由器R1上运行命令R1#show ip route,则在下列4条显示信息中,正确的是(24)。
A.R 192.168.1.0 [120/1]via 192.168.66.1,00:00:15, Ethernet0
B.R 192.168.5.0 [120/1]via 192.168.66.2,00:00:18,Serial
C.R 192.168.5.0 [120/1]via 192.168.66.1,00:00:24,Serial
D.R 192.168.65.0 [120/1]via 192.168.67.1,00:00:15,Ethernet0
第7题:
● 网络配置如下图所示:
其中某设备路由表信息如下:
C 192.168.1.0/24 is directly connected, FastEthernet0/0
R 192.168.3.0/24 [120/1] via 192.168.65.2, 00:00:04, Serial2/0
R 192.168.5.0/24 [120/2] via 192.168.65.2, 00:00:04, Serial2/0
C 192.168.65.0/24 is directly connected, Serial2/0
C 192.168.67.0/24 is directly connected, Serial3/0
R 192.168.69.0/24 [120/1] via 192.168.65.2, 00:00:04, Serial2/0
则该设备为 (28) ,从该设备到PC1经历的路径为 (29) 。路由器R2接可能的IP 地址为 (30) 。
(28)
A. 路由器R0
B. 路由器R1
C. 路由器R2
D. 计算机PC1
(29)
A. R0→R2→PC1
B. R0→R1→R2→PC1
C. R1→R0→PC1
D. R2→PC1
(30)
A. 192.168.69.2
B. 192.168.65.2
C. 192.168.67.2
D. 192.168.5.2
第8题:
以下路由表信息中,错误的路由表项是(61) 。 A.R l92.168.112.0[120/1]via l92.168.65.1,00:00:12,Serial0B.C 202.101.3.0/24 is directly connected.202.101.3.1 C.S l26.87.53.128[I/0]via 202.112.7.1D.0 E1 237.51.46.0/28[110/22]via l62.105.1.145,00:13:43,Vlanl
第9题:
在路由器R1的特权模式下执行“show ip route”命令,得到以下部分的系统输出信息。请将以下(10)~(13)空缺处的内容填写完整,以得到路由器R1的相关路由信息表。
Ri show ip route
Codes:C-connected,S-stadc,I-IGRP,R-RIP,M-mobile,B-BGP,D-EIGRP,O-OSPF
EX-EIGRP external,IA-OSPF inner area,E1-OSPF external type 1
E2-OSPF external type 2,E-EGP,I-IS-IS,L1-IS-IS level-1,
L2-IS-IS level-2,*-Candidate default,U-per-user static route
Gateway of last resort is not set
192.168.0.0/24 is subnetted,6 subnets
C 192.168.65.0 is dkrectly connected,Seriall
R 192.168.66.0 [120/1]via (10) ,00:00:08,Serial1
[120/1]via 192.168.67.2,00:00:10, (11)
C 192.168.67.0 is directly connected,Serial0
C 192.168.100.0 is directly connected, (12)
R 192.168.200.0 [120/1]via 192.168.65.1.00:00:12,Sedal1
R 192.168.300.0[120/ (13) ] via 192.168.67.2,00:00:12,Serial0
第10题:
某单位网络结构如图1-1所示,网络中所有路由器均使用RIP协议。
图1-1
在网络部署完成后进行如下测试:
1.在主机host101上对Router2的F0/0口及网络1的host1进行了连通性测试,结果如图1-2和图1-3所示。
host101>ping 192.168.0.1
Pinging 192.168.0.1 with 32 bytes of data:
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Ping statistics for 192.168.0.1:
Packets: Sent = 4,Received = 4,Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms,Maximum = 1ms,Average = 1ms
图1-2
host101>ping 192.168.0.2
Pinging 192.168.0.2 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.2:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
图1-3
2.在主机host3上对网络1进行了连通性测试,结果如图1-4所示。
host13>ping 192.168.0.2
Pinging 192.168.0.1 with 32 bytes of data:
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Ping statistics for 192.168.0.1:
Packets: Sent = 4,Received = 4,Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms,Maximum = 1ms,Average = 1ms
图1-4
3.查看路由器Router3的路由表,结果如图1-5所示。
Router3>show ip route
R 192.168.0.0/24 [120/1] via 202.117.112.1, 00:00:24,Serial2/0
C 192.168.1.0/24 is directly connected,FastEthemet0/0
R 192.168.2.0/24 [120/1] via 202.117.114.1,00:00:01,Serial3/0
202.117.112.0/30 is subnetted,1 subnets
C 202.117.112.0 is directly connected,Serial2/0
R 202.117.113.0/30 [120/1] via 202.117.112.1,00:00:24,Serial2/0
[120/1] via 202.117.114.1,00:00:01,Serial3/0
202.117.114.0/30 is subnetted,1 subnets
C 202.117.114.0 is directly connected,Serial3/0
图1-5
【问题1】(6分)
请填写hostl的Internet协议属性参数。
IP地址: (1)
子网掩码: (2)
默认网关: (3)
图1-2和图1-3连通性测试很快得知Router2的F0/0接口和host1的IP地址分别是192.168.0.1和192.168.0.2。图1-5中Router3路由表中学习到192.168.0.0/24的路由,可见对于host1而言,其网卡参数为中,IP地址为192.168.0.2,子网掩码为255.255.255.0,其网关为Router2的F0/0接口地址即192.168.0.1。
【问题1】(6分,每空2分)
(1)192.168.0.2
(2)255.255.255.0
(3)192.168.0.1