多項(xiàng)選擇題僅允許HTTP流量進(jìn)入網(wǎng)絡(luò)196.15.7.0,下面命令錯(cuò)誤的是()。

A、access-list 100 permit tcp any 196.15.7.0 0.0.0.255 eq www
B、access-list 10 deny tcp any 196.15.7.0 eq www
C、access-list 100 permit 196.15.7.0 0.0.0.255 eq www
D、access-list 110 permit ip any 196.15.7.0 0.0.0.255
E、access-list 110 permit www 196.15.7.0 0.0.0.255


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1.單項(xiàng)選擇題僅僅允許到主機(jī)1.1.1.1的SMTP郵件服務(wù)的命令是()。

A、access-list 10 permit smtp host 1.1.1.1
B、access-list 110 permit ip smtp host 1.1.1.1
C、access-list 10 permit tcp any host 1.1.1.1 eq smtp
D、access-list 110 permit tcp any host 1.1.1.1 eq smtp

2.多項(xiàng)選擇題你需要?jiǎng)?chuàng)建一個(gè)標(biāo)準(zhǔn)命名訪問(wèn)控制列表cisco用來(lái)拒絕主機(jī)172.16.198.94/19所在的子網(wǎng),表示錯(cuò)誤的有()。

A、ip access-list standard cisco deny 172.16.192.0 0.0.31.255
B、ip access-list standard cisco deny 172.16.0.0 0.0.255.255
C、ip access-list standard cisco deny 172.16.172.0 0.0.31.255
D、ip access-list standard cisco deny 172.16.188.0 0.0.15.255
E、ip access-list standard cisco deny 172.16.192.0 0.0.15.255

3.單項(xiàng)選擇題創(chuàng)建一個(gè)標(biāo)準(zhǔn)命名訪問(wèn)控制列表cisco用來(lái)拒絕網(wǎng)絡(luò)192.168.160.0到192.168.191.0內(nèi)的主機(jī),下面表達(dá)式正確的是()。

A、ip access-list standard cisco deny 192.168.160.0 255.255.240.0
B、ip access-list standard cisco deny 192.168.160.0 0.0.191.255
C、ip access-list standard cisco deny 192.168.160.0 0.0.31.255
D、ip access-list standard cisco deny 192.168.0.0 0.0.31.255

4.多項(xiàng)選擇題要?jiǎng)?chuàng)建一個(gè)擴(kuò)展命名訪問(wèn)控制列表cisco,僅允許HTTP流量進(jìn)入網(wǎng)絡(luò)196.15.7.0/24,下面命令是錯(cuò)誤的有()。

A、ip access-list extended cisco permit tcp any 196.15.7.0 0.0.0.255 eq www
B、ip access-list extended cisco deny tcp any 196.15.7.0 eq www
C、ip access-list extended cisco permit 196.15.7.0 0.0.0.255 eq www
D、ip access-list extended cisco permit ip any 196.15.7.0 0.0.0.255
E、ip access-list extended cisco permit www 196.15.7.0 0.0.0.255

5.單項(xiàng)選擇題僅僅允許到主機(jī)1.1.1.1的SMTP郵件服務(wù)的命名訪問(wèn)控制列表語(yǔ)句是()。

A、ip access-list standard cisco permit smtp host 1.1.1.1
B、ip access-list extended cisco permit ip smtp host 1.1.1.1
C、ip access-list standard cisco permit tcp any host 1.1.1.1 eq smtp
D、ip access-list extended cisco permit tcp any host 1.1.1.1 eq smtp