海船船员考试
单选题Which system may be useful for messages，such as local storm warnings or a shore-to-ship distress alert，for which it is inappropriate to alert all ships in the satellite coverage area?（）A NAVTEXB EGCC AMVERD DSC
题目
NAVTEX
EGC
AMVER
DSC
相似问题和答案
第1题：
A. show system boot-messages
B. show chassis messages
C. show file system boot-messages
D. show boot-log messages
第2题：
A. Run a System Restore
B. Check Device Manager
C. Check the Event Logs
D. Check the System Information
第3题：
(ii) Briefly explain the extent to which the application of sensitivity analysis might be useful in deciding
which refrigeration system to purchase and discuss the limitations inherent in its use. (3 marks)
(ii) Sensitivity analysis could be used to assess how responsive the NPV calculated in part (a) in respect of each decision
option change is to changes in the variables used to calculate it. The application of sensitivity analysis requires that the
net present values are calculated under alternative assumptions in order to determine how sensitive they are to changing
conditions. In this particular example then a relatively small change in the forecast cash flows might lead to a change
in the investment decision. The application of sensitivity analysis can indicate those variables to which the NPV is most
sensitive and the extent to which these variables may change before an investment results in a negative NPV. Thus the
application of sensitivity analysis may provide management with an indication of why a particular project might fail. The
directors of Stay Cool Ltd should give consideration to the potential variations in the independent variables which feature
in the decision-making process such as:
– estimated revenues
– estimated operating costs
– estimated working lives
– estimated repair costs
– the estimated discount rate i.e. cost of capital of each alternative investment.
Sensitivity analysis has some serious limitations. The use of the method requires changes in each variable under
consideration are isolated. However management may be focused on what happens if changes occur in two or more
critical variables. Another problem relating to the use of sensitivity analysis to forecast outcomes lies in the fact that it
provides no indication of the likelihood of the occurrence of changes in critical variables.
第4题：
When replacing a laptop’s hard drive, which of the following may need to be updated?（）
- A、The CD drive
- B、The network drivers
- C、The system OS
- D、The system BIOS
正确答案:D
第5题：
What are three methods that may be use d to allow a switch to determine which ports to forward IP multicast messages to?（）
- A、IGMP
- B、IGMP snooping
- C、PIM
- D、CGMP
- E、static assignment
- F、CDP
正确答案:B,D,E
第6题：
A.system and chassisd
B.syslog-messages and NVRAM
C.messages and interactive-commands
D.authorization and events
第7题：
Which categories of NAVTEX messages may not be selectively rejected through receiver programming ________．
A.Navigational warnings
B.Weather warnings
C.SAR and distress alert information
D.All of the above
第8题：
系统通过下发『____』消息，告知处于空闲态和连接态的UE，系统消息已经改变。(If the system messages have changed,what message the system will use to inform. UE which are in idle and the connected state『____』?)
Paging
第9题：
After factory-defaults have been loaded, which two syslog files will be present in the configuration?（）
- A、system and chassisd
- B、syslog-messages and NVRAM
- C、messages and interactive-commands
- D、authorization and events
正确答案:C
第10题：
A customer reports that error messages occasionally appear and quickly disappear. Which of thefollowing is the BEST place for a technician to begin troubleshooting this issue?（）
- A、Run a System Restore
- B、Check Device Manager
- C、Check the Event Logs
- D、Check the System Information
正确答案:C