Before switching on gyro-compass，you should make sure that the power supply on board is（）...

第1题

A、Switch on the deck light! B、Switch on the anchor light! C、Switch on the cargo light! D、Switch on the hold light!

第2题

[多选题] Refer to the exhibit. You have a non-Cisco switch that is not communicating properly while connected to the distribution-layer Cisco switching fabric. Which two best-practice actions can you take to overcome this problem? （）(Choose two.)

A、Turn off MST (802.1s) on all switches. B、Turn on MST (802.1s) on all switches. C、Turn on RSTP (802.1w) on all switches. D、Turn off RSTP (802.1w) on all switches.

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第3题

[单选题] The sensing line for the low pressure cutout switch to a refrigeration system is located （）.

A、in the chill box B、before the receiver C、on the suction side of the compressor D、on the discharge side of the compressor

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第4题

[单选题] On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

A、a router with subinterfaces configured on the physical interface that is connected to the switch B、a router with an IP address on the physical interface connected to the switch C、a switch with an access link that is configured between the switches D、a switch with a trunk link that is configured between the switches

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第5题

[单选题] On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

A、a router with subinterfaces configured on the physical interface that is connected to the switch B、a router with an IP address on the physical interface connected to the switch C、a switch with an access link that is configured between the switches D、a switch with a trunk link that is configured between the switches

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第6题

[单选题] On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

A、a router with subinterfaces configured on the physical interface that is connected to the switch B、a router with an IP address on the physical interface connected to the switch C、a switch with an access link that is configured between the switches D、a switch with a trunk link that is configured between the switches

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第7题

[单选题] The limit switches on a ships survival-craft winch system（）.

A、stop the winch just before the craft reaches the final stowage position B、limit the amount of cable on the drum C、limit the ascent rate D、stop the winch in case the craft weighs too much

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第8题

[单选题] A user is unable to connect to the network. A network technician is able to determine that there is a problem on the switch. All other users on that switch are able to connect successfully to the network. Which of the following is a probable cause？（）

A、Switching loop is occurring on the switch. B、Wrong subnet mask on the switch. C、Incorrect SNMP settings on the switch. D、Port is misconfigured on the switch.

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第9题

[] If the head pressure is too high,（）

A、A.the relief valve should open before the high-pressure cutout B、B.the relief valve should open and let excess refrigerant go to receiver C、C.the high-pressure cutout switch should operate before the relief valve opens D、D.close in on the suction valve

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Before switching on gyro-compass，you should make sure that the power supply on board is（）.

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