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单选题
The Vessel can be（）in lawful trades between ports，anchorages or places where it is customary for similar size vessels to lie safely aground.
A
Permalloyed
B
Destroyed
C
Deployed
D
employed
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Which statement about vlan operation on cisco catalyst switches is true?()
A. when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table.B. unkown unicast frames are retransmitted only to the ports that belong to the same vlanC. ports between switches should be configured in access mode so that vlans can span across the portsD. broadcast and multicast frames are retransmitted to ports that are configured on different vlan.
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It has been decided that to be lawful merchandise， goods loaded under the charter-party must not only be such as can be loaded without breach of the law in force at the port of loading， but must also be such as can lawfully be carried and discharged at the ________ ．A.port of dischargeB.port of sailingC.port of flagD.port of departure
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Free Radio Pratique will be granted by the Port Health Office in the following case ______ ．A.Vessel with a case or suspected case of infectious disease on boardB.Vessel with a dead body on boardC.Vessel which has visited plague-infected ports during the current voyageD.Cargo vessel which hasn't called at any plague infected ports during the current voyage and on which there is not any case of infectious disease，or any dead body
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No person may serve as the person in charge of both the vessel and the facility during oil transfer operations unless ______.A.there is ready access between the twoB.the vessel and facility are immediately adjacentC.the person in charge has a rapid means of transportation between the twoD.the Captain of the Port authorizes such procedure
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In charter-party，a clause states： the vessel to be employed between good and safe ports or places where she can ______.A.safe lie always floatB.safely lie always floatC.safe lie always afloatD.safely lie always afloat
考题
A vessel is "in sight" of another vessel when ______.A.she can be observed by radarB.she can be observed visually from the other vesselC.she can be plotted on radar well enough to determine her headingD.her fog signal can be heard
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The vessel shall be employed in such lawful trades between safe ports and places within Northern America as the ______ or their agents shall direct．A.CharterersB.Cargo ownersC.OwnersD.The merchants
考题
CAN YOU BEACH means ______.A.can you go to the beachB.can you run the vessel upon a beach to prevent its sinking in deep waterC.can you handle the vessel along the beachD.can berth along the beach
考题
Leeway is the ______.A.difference between the true course and the compass courseB.momentum of a vessel after her engines have been stoppedC.lateral movement of a vessel downwind of her intended courseD.displacement of a vessel multiplied by her speed
考题
Which two statements about voice VLANs are correct？（）A、Voice VLANs eliminate the need for QoS configurationB、Voice VLANs are used on trunk links to eliminate the need for QoS CoS markingsC、Voice VLANs are mainly used to reduce the number of access switch ports that are used in the networkD、Voice VLANs can be configured to forward existing CoS priorities or override themE、Voice VLANs are mainly used between access layer switches and distribution layer switchesF、Voice VLANs can be configured on Layer 2 ports only
考题
The DAI feature has been implemented in the Company switched LAN. Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）A、 DAI can be performed on ingress ports only.B、 DAI can be performed on both ingress and egress ports.C、 DAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports. D、 DAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.E、 DAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.F、 DAI is supported on access and trunk ports only.
考题
Which statement about vlan operation on cisco catalyst switches is true?（）A、when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table.B、unkown unicast frames are retransmitted only to the ports that belong to the same vlanC、ports between switches should be configured in access mode so that vlans can span across the portsD、broadcast and multicast frames are retransmitted to ports that are configured on different vlan.
考题
单选题Following a collision or accident，the Master of each vessel involved must render assistance to persons affected by the collision or accident（）.A
if he can do so without any risk to his vesselB
if he can do so without undue delayC
if he can do so without serious danger to his vessel or to individuals on boardD
without regard to any danger to his vessel
考题
单选题Refer to the exhibit.All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?（）A
The access link needs to be configured in multiple VLANs.B
The link between the switches is configured in the wrong VLAN.C
The link between the switches needs to be configured as a trunk.D
VTP is not configured to carry VLAN information between the switches.E
Switch IP addresses must be configured in order for traffic to be forwarded between the switches
考题
单选题According to the passage, what are characterized by their less centralized trades negotiated between dealers?A
secondary markets.B
over-the-counter markets.C
auction markets.
考题
单选题The provisional pratique by radio （） a vessel to proceed directly to berths or working anchorages and begin normal business activities without the inspection of the Port Health Officer．A
permitB
permittingC
is permittedD
permits
考题
单选题In stopping distances of vessels，head reach can best be described as the（）.A
difference between the vessel's speed through the water at any instant and the new speed ordered on the telegraphB
distance the vessel has actually run through the water since a change of speed was orderedC
distance the vessel will run between taking action to stop her and being stationary in the waterD
speed at which a vessel should proceed to ensure that she will run a predetermined distance，once her engines have been stopped
考题
多选题The DAI feature has been implemented in the Company switched LAN. Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）ADAI can be performed on ingress ports only.BDAI can be performed on both ingress and egress ports.CDAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.DDAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.EDAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.FDAI is supported on access and trunk ports only.
考题
单选题The inner bottom is the（）.A
tank topB
compartment between the tank top and shell of the vesselC
inner side of the vessel's shellD
space between two transverse bottom frames
考题
单选题Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.A
not exceed bare steerageway during the transitB
take a strain as soon as you can to control the towC
come up to speed very slowly and maintain a safe speedD
come up to speed quickly，then cut back power considerably to ease the strain
考题
多选题Which two statements are true about voice ports on a router？（）ACalls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.BCalls to the PSTN can be made via FXS or T1/E1 trunk ports.CAnalog and IP phones can be connected to the VoIP network via FXO or T1/E1 trunk ports.DCalls between analog phones that are attached to the FXS ports in a VoIP network can be completely processed by voice-enabled routers.
考题
单选题Sometimes the charter-party（）that the vessel must only use safe ports within a certain area.A
improvesB
installsC
containsD
requests
考题
单选题Which statement about vlan operation on cisco catalyst switches is true?（）A
when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address tableB
unkown unicast frames are retransmitted only to the ports that belong to the same vlanC
ports between switches should be configured in access mode so that vlans can span across the portsD
broadcast and multicast frames are retransmitted to ports that are configured on different vlan.
考题
单选题In charter-party，a clause states: the vessel to be employed between good and safe ports or places where she can（）.A
safe lie always floatB
safely lie always floatC
safe lie always afloatD
safely lie always afloat
考题
单选题A vessel is “in sight” of another vessel when（）.A
she can be observed by radarB
she can be observed visually from the other vesselC
she can be plotted on radar well enough to determine her headingD
her fog signal can be heard
考题
单选题Leeway is the（）.A
difference between the true course and the compass courseB
momentum of a vessel after her engines have been stoppedC
lateral movement of a vessel downwind of her intended courseD
displa ement of a vessel multiplied by her speed
考题
单选题Leeway is the（）.A
difference between the true course and the compass courseB
momentum of a vessel after her engines have been stoppedC
lateral movement of a vessel downwind of her intended courseD
displacement of a vessel multiplied by her speed
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