Access-list 1 deny 172.16.10.1是建立一个标准的访问控制列表。
第1题:
拒绝转发所有IP地址进与出方向的、端口号为1434的UDP和端口号为4444的TCP数据包,下列正确的access-list配置是
A)Router (config)#access-list 30 deny udp any any eq 1434
Router (config)#access-list 30 deny tcp any any eq 4444
Router (config)#access-list 30 permit ip any any
B)Router (config)#access-list 130 deny udp any any eq 1434
Router (config)#access-list 130 deny tcp any any eq 4444
Router (config)#access-list 130 permit ip any any
C)Router (config)#access-list 110 deny any any udp eq 1434
Router (config)#access-list 110 deny any any tcp eq 4444
Router (config)#access-list 110 permit ip any any
D)Router (config)#access-list 150 deny udp ep 1434 any any
Router (config)#access-list 150 deny tcp ep 4444 any any
Router (config)#access-list 150 permit ip any any
第2题:
只封禁一台IP地址为203.168.47.59主机的access-list的正确配置是(41) 。
A.access-list 110permit ip any any access-list 110deny ip host 203.168.47.59 any access-list 110deny ip any host 203.168.47.59
B.access-list 110deny ip host 203.168.47.59any access-list 110deny ip any host 203.168.47.59 access-list 110permit ip any any
C.access-list 110deny ip host 203.168.47.59 any access-list 110deny ip any host 203.168.47.59
D.access-list 110deny ip host 203.168.47.59 any access-list 110permit ip any any access-list 110deny ip any host 203.168.47.59
第3题:
(22)下面的访问控制列表中,( )禁止所有TELNET访问子网10.10.1.0/24。
A) access-list 15 deny udp any 10.10.1.0 255.255 255.0 eq 23
B) access-list 115 deny tcp any 10.10.1.0 0.0.0.255 eq 23
C) access-list 115 deny udp any 10.10.1.0 eq telnet
D) access-list 15 deny telnet any 10.10.1.0 0.0.0.255 eq 23
第4题:
A. Router(config)# access-list 1 deny 172.31.212.74 any
B. Router(config)# access-list 1 deny 10.6.111.48 host
C. Router(config)# access-list 1 deny 172.16.4.13 0.0.0.0
D. Router(config)# access-list 1 deny 192.168.14.132 255.255.255.0
E. Router(config)# access-list 1 deny 192.168.166.127 255.255.255.255
第5题:
Cisco路由器执行show access-list命令显示如下一组控制列表信息:
Standard IP acceSS list 30
deny 127.0.0.0,wildcard bits 0.255.255.255
deny 172.16.0.0,wiidcard bits 0.15.255.255
permft any
根据上述信息,正确的access-list配置是______。
A) Router(config)#access-list 30 deny 127.0.0.0 255.255.255.0
Router(config)#access-list 30 deny 172.16.0.0 255.240.0.0
Router(config)#access-list 30 permit any
B) Router(config-std-nacl)#access-list 30 deny 127.0.0.0 0.255.255.255
Router(config-std-nael)#access-list 30 deny 172.16.0.0 0.15.255.255
Router(config-std-nacl)#access-list 30 permit any
C) Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255
Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255
Router(config)#access-list 30 permit any
D) Router(config)#access-list 30 deny 127.0.0.0 0.255.255.255
Router(config)#access-list 30 permit any
Router(config)#access-list 30 deny 172.16.0.0 0.15.255.255
A.
B.
C.
D.
第6题:
如果要在路由器的某端口上过滤所有端口号为 1434 的 UDP 数据包,那么使用的 access-list 命令是
A)access-list 100 deny udp any any lt 1434
B)access-list 100 deny udp any any gt 1434
C)access-list 100 deny udp any any eq 1434
D)access-list 100 deny udp any any neq 1434
第7题:
要禁止内网中IP地址为198.168.46.8的PC访问外网,正确的ACL规则是(11)。
A.access-list 1 permit ip 192.168.46.00.0.0.255 any access-list 1 deny ip host 198.168.46.8 any
B.access-list 1 permit ip host 198.168.46.8 any access-list 1 deny ip 192.168.46.00.0.0.255 any
C.access-list 1 deny ip 192.168.46.00.0.0.255 any access-list 1 permit ip host 198.168.46.8 any
D.access-list 1 deny ip host 198.168.46.8 any access-list 1 permitip 192.168.46.00.0.0.255 any
第8题:
在Cisco路由器上,用扩展访问控制列表封禁IP地址为211.102.33.24的主机,正确的配置语句是______。
A.access-list 99 deny ip host 211.102.33.24 any access-list 99 deny ip any host 211.102.33.24 access-list 99 permit ip any any
B.access-list 100 permit ip any any access-list 100 deny ip host 211.102.33.24 any access-list 100 deny ip any host 211.102.33.24
C.access-list 199 deny ip host 211.102-33.24 any access-list 199 deny ip any host 211.102.33.24 access-list 199 permit ip any any
D.access-list 166 deny ip host 211.102.33.24 any access-list 166 permit ip any any
第9题:
只封禁一台地址为192.168.1.230主机的access-list正确配置是 (5) 。 A.access-list 110 permit中anyany access-list 110 deny中host 192.168.1.230 any access-list 110 deny ip anyhost 192.168.1.230
B.access-list 110 deny中host 192.168.1.230 any access-list 110 deny中any host 192.168.1.230 access-list 110 permit ip anyany
C.access-list 110 deny ip host 192.168.1.230 any access-list 110 deny ip any host 192.168.1.230
D.access-list 110 deny ip host 192.168.1.230 any access-list 110 permit ip anyany access-list 110 deny ip any host 192.168.1.230
第10题:
A. access-list 15 deny telnet any 10.10.1.0 0.0.0.255 eq 23
B. access-list 115 deny udp any 10.10.1.0 eq telnet
C. access-list 15 deny tcp 10.10.1.0 255.255.255.0 eq telnet
D. access-list 115 deny tcp any 10.10.1.0 0.0.0.255 eq 23
E. access-list 15 deny udp any 10.10.1.0 255.255.255.0 eq 23