单选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 193.62.40.230 any
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

【正确答案】 B

【答案解析】[解析] 使用access-list命令配置模式：access-list access-list-number{permitldeny}protocol source wildcard-mask destination eildcard-mask[operator][operand]。