The load between two steam-driven alternators operating in p

题目
单选题
The load between two steam-driven alternators operating in parallel may be adjusted by varying ()
A

the speed of the alternators

B

the field strength of the machines

C

the power factor of the alternators

D

steam supply to the prime movers

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第1题:

The operation of _______two alternators requires the voltages to be equal and also in phase

A.paralleling

B.series-mounting

C.running

D.controlling


正确答案:A

第2题:

In which two locations in an enterprise network can an IPS sensor be placed?()

  • A、bridging VLANs on two switches
  • B、bridging two VLANs on one switch
  • C、between two Layer 2 devices withtrunking
  • D、between two Layer 2 devices withouttrunking
  • E、between a Layer 2 device and a Layer 3 device withtrunking

正确答案:C,D

第3题:

The division of kilowatt load between two paralleled alternators is determined by the

A.amount of field excitation of the leading machine

B.load-speed characteristics of the governors

C.amount of field excitation to the lagging machine

D.type of alternator


正确答案:B

第4题:

Which three statements about anycast RP are true? ()

  • A、MSDP is running between anycast RPs
  • B、Anycast RP provides redundancy and load-sharing capabilities
  • C、Multicast BGP is running between anycast RPs
  • D、In anycast RP,two or more RPs are configured with the same multicast IP address on loopback interfaces
  • E、In anycast RP,two or more RPs are configured with the same unicast IP address on loopback interfaces

正确答案:A,B,E

第5题:

SQ L*Loader is a utility that can perform which two tasks?()

  • A、Load data from a disk, tape, or named pipes.
  • B、Load data into an Oracle database using DML statements.
  • C、Extract, reorganize, and insert data within an Oracle database.
  • D、Load data from external files into tables in an Oracle database.
  • E、Load data into an Oracle database using operating system commands.
  • F、Load data directly from a non-Oracle database to an Oracle database.

正确答案:A,D

第6题:

The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.

A.load limit settings

B.idle speed settings

C.speed limit settings

D.speed droop settings


正确答案:D

第7题:

What are two characteristics of Server Load Balancing router mode?()

  • A、 The design supports multiple server subnets Cisco 642-874: Practice Exam
  • B、 An end-user sees the IP address of the real server
  • C、 SLB routes between the outside and inside subnets
  • D、 The source or destination MAC address is rewritten, but the IP addresses left alone
  • E、 SLB acts as a "bump in the wire" between servers and upstream firewall or Layer 3 devices

正确答案:A,D

第8题:

Diesel engines driving alternators operating in parallel must maintain a set frequency regardless of load changes. The governor characteristic used to accomplish this is known as _______.

A.actuation

B.sensitivity

C.compensation

D.promptness


正确答案:C

第9题:

In which two locations in an enterprise network can an IPS sensor be placed? ()

  • A、 bridging VLANs on two switches
  • B、 bridging two VLANs on one switch
  • C、 between two Layer 2 devices with trunking
  • D、 between two Layer 2 devices without trunking
  • E、 between a Layer 2 device and a Layer 3 device with trunking

正确答案:C,D

第10题:

When load balancing traffic between two web servers, which of the following technologies provides the LOWEST cost solution?()

  • A、 Active/passive cluster
  • B、 Active/active cluster
  • C、 Log shipping
  • D、 DNS round robin

正确答案:D

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