海船船员考试
单选题That REMOVE ANY LIST ON THE V/L AFTER EACH WATCH END means that（）.A any list，no matter where it is posted，shall be removed prior to ending his watch by the OOWB the vessel should not be removedC any and all lists on board the vessel should be taken off
题目
any list，no matter where it is posted，shall be removed prior to ending his watch by the OOW
the vessel should not be removed
any and all lists on board the vessel should be taken off
the inclination of the vessel should be corrected prior to ending his watch by the OOW
参考答案和解析
相似问题和答案
第1题：
用扩展访问控制列表配置封禁ICMP协议，只允许l68．27．95．0／24子网的ICMP数据包通过路由器，正确的配置是(61) 。
A．access-list 90 deny icmp l68．27．95．0 255．255．255．0 any access-list 90 deny icmp any anyaccess—list 90 permit ip any any
B．access-list l00 permit icmp l68．27．95．0 0．0．0．255 any access-list l00 permit ip any any
C．access—list l l o permit icmp l68．27．95．0 255．255．255．0 any access—list l lo deny icmp any any
D．access-list l20 permit icmp l68．27．95．0 0．0．0．255 any access—list l20 deny icmp any any access—list l20 permit ip any any
要点解析：路由器扩展ACL(访问控制列表)的表号范围是l00～199、2000～2699。而选项A的ACL号“90”属于标准ACL的表号范围，据此可先排除选项A。
在全局配置模式下，使用命令access．1ist access．1ist-number{permit l deny}protocol source wildcar
D．mask destination wildcar
D．mask『operator][operand]配置标准访问控制列表。依题意，允许168．27．95．0／24子网的ICMP数据包通过该路由器的某接口，相应的配置语句是：access．1ist ll0 permit icmp l68．27．95．0 0．0．0．255 any。
注意到题目“在该路由器接口上只封禁ICMP协议”中“只”字的要求，需要先使用命令 access．1ist llo deny icmp any any，再使用命令access．1ist llo permit ip any any才能完成这一要求。 选项8中缺少了封禁ICMP协议的命令access—list llo deny icmp any any。
选项c有两个错误之处：①配置语句中使用的是子网掩码255．255．255．0，而正确的配置语句应该使用的是访问控制列表通配符(Wildcard—Mask)形式，即0．0．0．255；②缺少命令access—list ll0 permit ip any any，它将封禁除l68．27．95．0／24子网的ICMP数据包通过之外的所有通信。
第2题：
()means a list of the people employed by a company showing how much each one earns.
A. expertise
B. franchise
C. payroll
D. reluctant
第3题：
定义一个用于封禁ICMP协议而只允许转发166.129.130.0/24子网的ICMP数据包的访问控制列表，Cisco路由器的正确配置是
A．access-list 198 permit icmp 166.129.130.0 255.255.255.0 any access-list 198 deny icmp any any access-list 198 permit ip any any
B．access-list 198 permit icmp 166.129.130.0 0.0.0.255 any access-list 198 deny icmp any any access-list 198 permit ip any any
C．access-list 99 permit icmp 166.129.130:0 0.0.0.255 any access-list 99 deny icnip any any access-list 99 permit ip any any
D．access-list 100 permit icmp 166.129.130.0 0.0.0.255 any access-list 100 permit ip any any access-list 100 deny icmp any any
第4题：
After a seaman is discharged，at the end of the voyage，the final payment of wages due must be made at the earlier of within 24 hours after the cargo has been discharged or______.
A.within 4 days after the seaman's discharge
B.prior to the vessel's departure on the next voyage
C.prior to loading any out-bound cargo
D.prior to any change of Master
第5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6题：
若要求路由器的某接口上只封禁ICMP协议，但允许159.67.183.0/24子网的ICMP数据包通过，那么使用的access-list命令是______。
A．access-list 120 deny icmp 159.67.183.0 0.0.0.255 any access-list 120 permit ip any any
B．access-list 10 permit icmp 159.67.183.0 0.0.0.255 any access-list 10 deny icmp any any access-list 10 permit ip any any
C．access-list 99 permit icmp 159.67.183.0 0.0.0.255 any access-list 99 deny icmp any any
D．access-list 110 permit icmp 159.67.183.0 0.0.0.255 any access-list 110 deny icmp any any access-list 110 permit ip any any
解析：依题意，允许159.67.183.0/24子网的ICMP数据包通过该路由器的某接口，相应的配置语句是：access-list 110 permit icmp 159.67.183.0 0.0.0.255 any。
注意到题目“在该路由器接口上只封禁ICMP协议”中“只”字的要求，需要先使用命令access-list 110 deny icmp any any，再使用命令access-list 110 permit ip any any才能完成这一要求。
选项A中的“access-list 120 deny icmp 159.67.183.0 0.0.0.255 any”表示，禁止159.67.183.0/24子网的ICMP数据包通过，因此选项A不符合题意要求。
选项B中的“10”和选项C中的“99”都是标准访问控制列表的表号，而标准访问控制列表的配置命令是access-list access-list-number {permit|deny} source-address wildcard-mask。而选项B和选项C的配置语句中包含了目的IP地址范围(any)，不符合标准访问控制列表的语法格式，因此可排除选项B和选项C。
第7题：
定义一个用于封禁ICMP协议而只允许转发l66．129．130．0／24子网的ICMP数据包的访问控制列表，Cisc0路由器的正确配置是（ ）。
A.access-list 198 permit icmp 166．129．130．0 255．255．255．0 anyaccess-list 198 deny iemp any anyaccess-list 198 permit ip any any
B.access-list 198 permit icmp 166．129．130．0 0．0．0．255 anyaccess-list 198 deny iemp any anyaccess-list 198 permit ip any any
C.access-list 99 permit icmp 166．129．130．0 0．0．0．255 anyaccess-list 99 deny iemp any anyaccess-list 99 permit ip any any
D.access-list 100 permit icmp 166．129．130．0 0．0．0．255 anyaccess-list 100 permit ip any anyaccess-list 100 deny icmp any any
标准访问控制列表标号为1～99，1300～1999。100～199，2000～2699为扩展控制列表。标准访问控制列表只能检查数据包的源地址，因此其功能有很大的局限性，扩展访问控制列表可以检查数据包的源地址和目的地址，还可以对数据包头中的协议进行过滤，如IP协议，ICMP协议和TCP协议等，因此排除C。访问控制列表的通配符是子网掩码的反码。所以A项错误。而D项先执行"access-list100per-mitipanyany"，那么所有的IP地址都不禁封，而后面命令的将不执行，D项错。所以选B。
第8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 1 10 deny ip any host 193．62．40．230
B．access—list 110 denv 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
解析：考查配置访问控制列表ACL，需要特别注意的是ACI。语句顺序。因为路由器接口执行，哪条ACI.是按配置的访问控制列表中的条件语句，从第一条开始顺序执行的。数据包只有在跟第一个判断条件不匹配时，才能交给ACI.中的下一个条件语句进行比较。经判断知，答案选B)。
第9题：
In writing up the logbook at the end of your watch，you make an error in writing an entry. What is the proper means of correcting this error?
A.Cross out the error with a single line，and write the correct entry，then initial it
B.Carefully and neatly erase the entry and rewrite it correctly
C.Remove this page of the log book，and rewrite all entries on a clean page
D.Blot out the error completely and rewrite the entry correctly
第10题：
That REMOVE ANY LIST ON THE V/L AFTER EACH WATCH END means that ______．
A.any list，no matter where it is posted，shall be removed prior to ending his watch by the OOW
B.the vessel should not be removed
C.any and all lists on board the vessel should be taken off
D.the inclination of the vessel should be corrected prior to ending his watch by the OOW