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A pump is defined as device that（）

题目
单选题
A pump is defined as device that（）
A

produces pressure

B

imparts energy to a fluid to move it from level ‘A’ to level ‘B’

C

creates a vacuum to move a liquid in all installation

D

is to develop a pressure differential

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相似问题和答案

第1题：

While configuring a new adapter using cfgmgr, an administrator receives a warning message indicating that some device packages are not installed. Additionally, the adapter displays in the Defined state.Which command will resolve the issue and make the adapter available?（）

A.shutdown -Fr

B.cfgmgr -i <lpp_source>

C.mkdev -l <device_name>

D.mknode /dev/<device_name>


参考答案：B

第2题：

The amount of fuel delivered by a helical plunger fuel injection pump is controlled by ______.

A.varying the pump discharge pressure

B.varying the pump return pressure

C.rotation of the pump plunger

D.rotation of the pump barrel


正确答案：C

第3题：

When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be______.

A.disengaging the clutch firstly, then stopping the main engine

B.stopping the main engine firstly, then disengaging the clutch

C.stopping the cooling water pump firstly, then stopping the main engine

D.stopping the main engine and disengaging the clutch at the same time


正确答案：A

第4题：

While configuring a new adapter using cfgmgr, an administrator receives a warning message indicating that some device packages are not installed. Additionally, the adapter displays in the Defined state. Which command will resolve the issue and make the adapter available?（）

  • A、shutdown -Fr
  • B、cfgmgr -i <lpp_source>
  • C、mkdev -l <device_name>
  • D、mknode /dev/<device_name>

正确答案:B

第5题：

In which situations does the Oracle Data Pump use external tables and not the direct path load whileexporting a table（）

  • A、if a table is not in a cluster
  • B、if a table has an active trigger
  • C、if a table has an encrypted
  • D、if a table has a column of data type LONG defined on it
  • E、if a table has a referential integrity constraint defined on it

正确答案:B,C,E

第6题：

An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.

A.stabilizing the ship speed

B.increasing the fuel pump setting

C.braking the crankshaft

D.cutting power off the engine


正确答案：D

第7题：

You are configuring an active/passive cluster of SRX Series devices as the firewall enforcer on a MAG Series device.Which statement is true?（）

  • A、Multiple Infranet Enforcer instances are created with a single serial number of an SRX Series device defined in each configuration.
  • B、A single Infranet Enforcer instance is created with both serial numbers of the clustered SRX Series devices defined in the configuration.
  • C、Multiple Infranet Enforcer instances are created with a single IP address of an SRX Series device defined in each configuration.
  • D、A single Infranet enforcer instance is created with the VIP of the clustered SRX Series device defined in the configuration.

正确答案:B

第8题：

When configuring a single SRX210 as a firewall enforcer to a MAG4610 active／passive cluster, which statement supports a fault－tolerant configuration?()

A. The cluster VIP is defined on the MAG4610 cluster, and the VIP of the cluster is defined as an instance on the SRX Series device.

B. The cluster VIP is not defined on the MAG4610 cluster, and the IP address of both the active and passive nodes of the cluster are defined as separate instances on the SRX Series device.

C. The cluster VIP is defined on the MAG4610 cluster, and the IP address of the active node is defined as an instance on the SRX Series device.

D. The cluster VIP is not defined on the MAG4610 cluster, and the IP address of the passive node is defined as an instance on the SRX Series device.


参考答案：A

第9题：

Overlay Transport Virtualization （OTV） overlay interface is a logical multiaccess and multicast- capable interface that must be explicitly defined by the user and where the entire OTV configuration is applied. Which statements are true about OTV overlay interface？（）

  • A、 When an OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the overlay interface.
  • B、 The OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the join interface toward the routed domain.
  • C、 When the OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the join interface.
  • D、 The OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the overlay interface toward the routed domain.

正确答案:A,B

第10题：

While configuring a new adapter using cfgmgr， an administrator receives a warning message indicating that some device packages are not installed.  Additionally， the adapter displays in the Defined state.  Which command will resolve the issue and make the adapter available？（）  

  • A、shutdown -Fr
  • B、cfgmgr -i 
  • C、mkdev -l 
  • D、mknode /dev/

正确答案:B

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