仅仅允许到主机1.1.1.1的SMTP邮件服务的命令是()。
第1题:
在 Cisco 路由器匕用扩展访问控制列表封禁 1P 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2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3题:
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?()
A.access-list 101 deny tcp 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
B.access-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
C.access-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any any
D.access-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any any
第4题:
第5题:
要创建一个扩展命名访问控制列表cisco,仅允许HTTP流量进入网络196.15.7.0/24,下面命令是错误的有()。
第6题:
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?()
第7题:
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5.What command should be issued to accomplish this task?()
第8题:
仅仅允许到主机1.1.1.1的SMTP邮件服务的命名访问控制列表语句是()。
第9题:
Which item represents the standard IP ACL?()
第10题:
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?()
第11题:
ip access-list standard cisco permit smtp host 1.1.1.1
ip access-list extended cisco permit ip smtp host 1.1.1.1
ip access-list standard cisco permit tcp any host 1.1.1.1 eq smtp
ip access-list extended cisco permit tcp any host 1.1.1.1 eq smtp
第12题:
access-list 10 permit smtp host 1.1.1.1
access-list 110 permit ip smtp host 1.1.1.1
access-list 10 permit tcp any host 1.1.1.1 eq smtp
access-list 110 permit tcp any host 1.1.1.1 eq smtp
第13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14题:
下面是在防火墙中的部分配置命令,请解释其含义:
global(outside)1 202.134.135.98-202.134.135.100(8)
conduit permit tcp host 202.134.135.99 eq www any(9)
access-list 10 permit ip any any(10)
第15题:
只封禁一台地址为193.62.40.230主机的access-list的正确配置是
A.access-list 110 permit ip any any access-list 110 deny ip host 193.62.40.230 any access-list 110 deny ip any host 193.62.40.230
B.access-list 110 deny ip host 193.62.40.230any access-list 110 deny ip any host 193.62.40.230 access-list 110 permit ip any any
C.access-list 110 deny ip host 193.62.40.230 any access-list 110 deny ip any host 193.62.40.230
D.access-list 110 deny ip host 193.62.40.230 any access-list 110 permit ip any any access-list 110 deny ip any host 193.62.40.230
第16题:
计费服务器的ip地址在192.168.1.0/24子网内,为了保证计费服务器的安全,不允许任何用户telnet到该服务器,则需要配置的访问列表条目为:()
第17题:
仅允许HTTP流量进入网络196.15.7.0,下面命令错误的是()。
第18题:
Which of the following IOS commands can detect whether the SQL slammer virus propagates in yournetworks?()
第19题:
Which item represents the standard IPACL?()
第20题:
哪个选项代表了标准的IP ACL?()
第21题:
Which item represents the standard IP ACL?()
第22题:
access-list 50 deny 192.168.1.1 0.0.0.255
access-list 110 permit ip any any
access-list 2500 deny tcp any host 192.168.1.1 eq 22
access-list 101 deny tcp any host 192.168.1.1
第23题:
access-list 101 deny tcp 192.168.1.128 0.0.015 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
access-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any any
access-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any any
access-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
access-list 101 deny ip 192.168.1.128 0.0.0.240 192.158.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
access-list 101 deny ip 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any