海船船员考试
单选题The ARQ mode should be applied（）.A when two stations communicate with each otherB in any radio system and at any timeC when one ship sends a message to another stationD for communication among some stations
题目
when two stations communicate with each other
in any radio system and at any time
when one ship sends a message to another station
for communication among some stations
相似问题和答案
第1题：
If wire rope clips are used to make a joint in a wire lashing，be sure that ______．
A.the saddle portion of the clip should be applied to the live load segment and the U-bolt to the dead or shortened end segment
B.the saddle portion and the U-bolt of the clip should be applied to the dead or shortened end
C.neither the saddle portion nor the U-bolt of the clip should be applied to the live load segment
D.the U-bolt of the clip should be applied to the live load segment and the saddle portion to the dead or shortened end segment
第2题：
Which two statements describe the behavior of the server's SQL mode?（）
- A、The server's SQL mode determines how the server should behave when performing data validation check and interpreting different forms of syntax
- B、The server's SQL mode determines whether the server should be read-only or should accept commands such as INSERT and UPDATE
- C、The server's SQL mode can be changed at the session level with a SET SESSION sql_mode="new_value" command
- D、The server's SQL mode, when globally set on a slave server, applies to events sent from the master
正确答案:A,C
第3题：
A.static
B.final
C.const
D.abstract
第4题：
Which three statements accurately describe IOS Firewall configurations？（）
- A、The IP inspection rule can be applied in the inbound direction on the secured interface
- B、The IP inspection rule can be applied in the outbound direction on the unsecured interface
- C、The ACL applied in the inbound direction on the unsecured interface should be an extendedACL.
- D、For temporary openings to be created dynamically by Cisco IOS Firewall， the access-list for thereturning traffic must be a standard ACL
正确答案:A,B,C
第5题：
Which statement best describes configuring access control lists to control Telnet traffic destined to therouter itself？（）
- A、The ACL applied to the vty lines has no in or out option like ACL being applied to an interface.
- B、The ACL is applied to the Telnet port with the ip access-group command.
- C、The ACL must be applied to each vty line individually.
- D、The ACL should be applied to all vty lines in the in direction to prevent an unwanted user from connecting to an unsecured port.
正确答案:D
第6题：
A GRE tunnel is configured between a local and a remote site. Where should the service policy be applied to classify packets based on the pretunnel header? （）
- A、in global configuration mode， apply the service policy and use the qos pre-classify
- B、in global configuration mode， apply the service policy but do not use the qos pre-classify command
- C、apply the service policy on the physical interface but do not use the qos pre-classify
- D、apply the service policy on the tunnel interface but do not use the qos pre-classify command
- E、apply the service policy on the tunnel interface and use the qos pre-classify command
正确答案:C
第7题：
You are configuring an 802.1Q trunk between a Layer 2 switch and a firewall. You read in the documentation that the best way to set up a trunk is to set the port as dynamic desirable. The trunk is not coming up. Which one of these options would be a valid explanation？ （）
- A、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode ON
- B、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode to OFF
- C、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode asauto.
- D、The firewall does not support DTP. You should set the switchport trunk mode to ON
正确答案:D
第8题：
(c) Describe the audit procedures you should perform. to determine the validity of the amortisation rate of five
years being applied to development costs in relation to Plummet. (5 marks)
(c) Audit procedures to determine the validity of the amortisation rate of five years being applied to development costs in relation
to the product Plummet would include the following:
– Obtain the papers documenting market research carried out on Plummet. Review and ascertain that the market research
supports a product life span of five years.
– Review actual sales patterns since the launch of Plummet and compare to the predicted sales per the market research
document.
Tutorial note: this will help to demonstrate the accuracy of the predicted sales forecast of Plummet.
– Read the assumptions underpinning the market research sales projections, and consider whether these assumptions
agree with the auditors’ understanding of the business.
– Discuss sales trends with the sales/marketing directors and ascertain whether sales are in line with management’s
expectations.
– Read correspondence with retail outlets to ensure there is continued support for selling Plummet.
– Obtain marketing/advertising budgets and ascertain enough expenditure is continuing on Plummet to support continued
sales.
第9题：
Which three statements about IOS Firewall configurations are true？（）
- A、The IP inspection rule can be applied in the inbound direction on the secured interface.
- B、The IP inspection rule can be applied in the outbound direction on the unsecured interface.
- C、The ACL applied in the outbound direction on the unsecured interface should be an extended ACL.
- D、The ACL applied in the inbound direction on the unsecured interface should be an extended ACL.
- E、For temporary openings to be created dynamically by Cisco IOS Firewall，the access-list for thereturning traffic must be a standard ACL.
- F、For temporary openings to be created dynamically by Cisco IOS Firewall，the IP inspection rule must be applied to the secured interface.
正确答案:A,B,D
第10题：
Multicast is being deployed in the network， and only ip pim sparse-dense mode has been configured on all interfaces in the network to support a new video streaming application. No other multicast configuration was applied anywhere in the network. Since enabling multicast， the network monitoring tools show periodic spikes in link utilization throughout the network， even in areas where the video application is not being used. What could be a possible cause？（）
- A、PIM sparse mode is being used.
- B、PIM dense mode is being used.
- C、The BGP multicast address family has not been configured.
- D、IGMP version 3 is being used.
- E、IP PIM neighbor filters have not been applied.
正确答案:B