【多选题】
What are three valid disk configurations for the vSphere Data Protection 6.x Appliance? (Choose three.)___
A. 500GB
B. 1TB
C. 1.5TB
D. 2TB
E. 4TB
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相关试题
【多选题】
Which three connection types are available when configuring a vSwitch in the vSphere Web Client? (Choose three.)___
A. VMkernel Network Adapter
B. Physical Network Adapter
C. Virtual Machine Port Group for a Standard Switch
D. vMotion Network Adapter
E. vSAN Network Adapter
【多选题】
Which three features can be enabled for a new host cluster? (Choose three.)___
A. Storage Distributed Resource Scheduling
B. High Availability
C. Fault Tolerance
D. Distributed Resource Scheduling
E. Virtual SAN
【多选题】
An administrator receives a report that no real time statistics are available for a virtual machine in the vCenter Server inventory. Which two statements indicate likely causes of the problem? (Choose two.)___
A. The virtual machine is powered off.
B. The host containing the virtual machine is disconnected from vCenter Server.
C. There is insufficient real time data to display the information.
D. The vCenter Server service is not running.
【多选题】
Your manager has given you a bash script that retrieves data for ESXi 6.x host configurations. This data needs to be collected right after the installation of a host and must be run directly on the host. Which two actions can be used to run this script on an ESXi host? (Choose two.)___
A. Connect to the host with Ruby vSphere Console and run the script from there.
B. Enable SSH access from the Direct Console User Interface.
C. Enable the ESXi Shell from the
D. irect Console User Interface.
【多选题】
Which two are true about the Risk badge in vRealize Operations? (Choose two.)___
A. The Risk badge indicates potential future problems that may degrade the performance of the system.
B. Risks may require attention in the near future.
C. The Risk badge indicates problems that are degrading performance of the system.
D. Risks require attention now to correct system performance problems.
【多选题】
vSphere Update Manager allows which two virtual machine attributes to be upgraded? (Choose two.)___
A. Virtual machine firewall policies for NSX.
B. Software Packages in the virtual machine.
C. Virtual machine Hardware Version.
D. VMware Tools Upgrade.
【多选题】
What are two benefits of using NFS 4.1 with vSphere 6.x as compared to NFS 3? (Choose two.)___
A. NFS 4.1 supports Kerberos Authentication
B. NFS 4.1 supports multipathing
C. NFS 4.1 supports IPv6
D. NFS 4.1 supports hardware acceleration
【多选题】
Which three statements are true regarding Fault Tolerance? (Choose three.)___
A. Applications need to be continuously available to users.
B. Applications without native clustering capabilities can be protected.
C. Custom clustering solutions are complicated to configure and maintain.
D. Applications that have 16 vCPUs are supported.
E. Prevents application crashes by analyzing the workload and correcting problems.
【多选题】
Which two statements are true regarding VMware vSphere Flash Read Cache (vFRC)? (Choose two.)___
A. Cache fills and cache evictions happen in the granularity of a cache block size.
B. vFRC caches data from both read and write I/Os, but write I/Os are always serviced by the underlying storage.
C. vFRC caches data from both read and write I/Os, but write I/Os are always serviced by the underlying cache data.
D. Cache fills and cache evictions happen in the granularity of the disk block size.
【多选题】
What are two possible causes of Storage Distributed Resource Scheduler (SDRS) being disabled on one or more virtual machine disks in a datastore cluster? (Choose two.)___
A. The virtual machine has vSphere Fault Tolerance disabled.
B. The virtual machine is a template.
C. The virtual machine swap file is on a shared datastore.
D. The disk is a CD-ROM/ISO file.
【多选题】
An administrator attempts to install vCenter Single Sign-On Server. The installer returns an error message indicating that the installation failed. Prior to the installation, all setup prerequisites were met. The administrator has generated a vCenter Server Single Sign-On support bundle. Which two files should the administrator analyze to determine the cause of the failure? (Choose two.)___
A. Server\utils\logs\imsTrace.log
B. Server\utils\logs\install.txt
C. %TEMP%\utils\logs\vminst.log
D. %TEMP%\vminst.log
【多选题】
An administrator is unable to remove an ESXi 6.x host from a vSphere Distributed Switch. What are two likely reasons for this issue? (Choose two.)___
A. Vmkernel interfaces on the switch are still in use.
B. VM Network port group adapters are connected to different switch.
C. Physical NICs are migrated to different switch.
D. VM Network adapters are connected to this switch.
【多选题】
Which two Identity Sources are available to add for vCenter Single Sign-On authentication? (Choose two.)___
A. LocalOS
B. OpenLDAP
C. NIS as an LDAP Server
D. VCMSDS
【多选题】
What are three goals of resource management within a cluster? (Choose three.)___
A. To prevent virtual machines from monopolizing resources and to guarantee predictable service rates.
B. To exploit undercommitted resources and overcommit with graceful degradation.
C. To provide solutions to potential problems that you might encounter when using vCenter Server.
D. To control the relative importance of virtual machines and provide flexible dynamic partitioning.
E. To provide additional network administration capabilities.
【多选题】
Which three actions can be taken as a result of executing the vSphere Update Manager 6.x scan and remediation wizards? (Choose three.)___
A. Install and upgrade software in virtual machines.
B. Upgrade the firmware on ESXi host devices.
C. Upgrade and Patch ESXi hosts.
D. Install and update third-party software on hosts.
E. Upgrade virtual machine hardware.
【多选题】
Which two statements are true about deploying and using vSphere Replication? (Choose two.)___
A. ESXi hosts managed by a single vCenter Server instance require a connection between the two vSphere Replication appliances.
B. Sites managed by different vCenter Server instances require a connection between the two vSphere Replication appliances.
C. Sites managed by different vCenter Server instances require the use of Site Recovery Manager and a connection between the two vSphere Replication appliances.
D. ESXi hosts managed by a single vCenter Server instance require a single vSphere Replication appliance.
【多选题】
An administrator is attempting to power on a virtual machine, but the task is hanging at 95%. What three scenarios best explain why this problem is happening? (Choose three.)___
A. A virtual machine question is currently being posed to the administrator.
B. Another task for the virtual machine or other component is already in progress.
C. The VMware High Availability cluster has insufficient resources to guarantee failover.
D. The host has lost access to the storage device containing the virtual machine files.
E. The host is under resource contention and unable to power on the virtual machine.
【多选题】
Which three features are not supported when using Fault Tolerance in vSphere 6.x? (Choose three.)___
A. Virtual Volumes (VVOLS)
B. Storage vMotion
C. Virtual Machine Component Protection
D. vMotion
E. vSphere Distributed Switches
【多选题】
Which two storage controller configurations can be used with Virtual SAN? (Choose two.)___
A. SAS controllers in Passthrough mode
B. SAS controllers in RAID0 mode
C. SAS controllers in RAID1 mode
D. SAS controllers in RAID10 mode
【多选题】
Which three are requirements when using vMotion to move a virtual machine across vCenter Server systems? (Choose three.)___
A. Both vCenter Servers must be using Enhanced Linked Mode.
B. Both vCenter Servers must be in the same Single Sign-On Domain.
C. Time must be synchronized.
D. Duplicate VM MAC addresses must be configured.
E. Both vCenter Servers must have High Availability enabled on source and destination clusters.
【多选题】
Which two components can be used when configuring Enhanced Linked Mode? (Choose two.)___
A. vCenter Server Appliance
B. vRealize Operations Manager
C. vSphere Management Appliance
D. vCenter Server for Windows
【多选题】
An organization has a number of virtual machines that would benefit from Fault Tolerance. These include: <A single vCPU Apache Server> < A dual vCPU vCenter Server> < A quad vCPU SQL Server> <An eight vCPU Hadoop Server>. Which two virtual machines can be configured to use VMware Fault Tolerance? (Choose two.)___
A. Apache Server
B. vCenter Server
C. SQL Server
D. Hadoop Server
【多选题】
Which two badges are major badges in vRealize Operations? (Choose two.)___
A. Risk
B. Efficency
C. Workload
D. Faults
【多选题】
An administrator is deploying multiple Windows 2003 Virtual Machines from the same template. What two steps should be taken to avoid network conflicts? (Choose two.)___
A. Customize the guest operating system.
B. Install VMware Tools into the new virtual machines.
C. Copy the Microsoft Sysprep tools onto the vCenter Server system.
D. Ensure the e1000 vmnic is selected for each new virtual machine.
【多选题】
Which three conditions would prevent Storage I/O Control from being enabled on a group of datastores? (Choose three.)___
A. The datastores planned for the solution are used by different vSphere clusters.
B. A datastore planned for the solution is configured as a Raw Device Mapping file.
C. A datastore planned for the solution has three extents.
D. A datastore planned for the solution is configured as NFS.
E. The organization has an Enterprise license.
【多选题】
Which two actions are prerequisites to adding ESXi 6.x hosts to a vSphere Distributed Switch? (Choose two.)___
A. Verify that there is at least one Distributed Port Group on the Distributed Switch.
B. Verify that the Distributed Port Group have active uplinks configured in its teaming and failover policy.
C. Verify that the
D. istributed Switch has been configured with a Network Profile.
【多选题】
An organization has configured Distributed Power Management (DPM) on a vSphere 6 cluster. The organization wants to be alerted when an ESXi host has been powered down by DPM. Which two options represent the type and name of the alarm that would accomplish this? (Choose two.)___
A. DrsEnteringStandbyModeEvent
B. DrsEnteredStandbyModeEvent
C. Event-based
D. Condition-based
【多选题】
Which two allow for the disabling of Network Rollback operations? (Choose two.)___
A. Modifying the vpxd advanded configuration options and adding the config.vpxd.network.rollback key
B. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the<rollback> xml tag
C. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the <networkrollback> xml tag
D. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\firstboot\vpxd-service- spec.prop file and adjusting the <rollback> xml tag
【多选题】
An administrator is tasked with performing a vMotion migration of a virtual machine. The virtual machine is configured as follows: <vSphere Flash Read Cache (vFRC) enabled> <Is part of a Distributed Resource Cluster (DRS) Cluster> Which two statements are true? (Choose two.)___
A. Each ESXi host in the cluster supports multiple virtual flash resources.
B. Each ESXi host in the cluster supports one virtual flash resource.
C. DRS treats powered-on virtual machines with Flash Read Cache as having a preferred affinity to their current host and moves them only for mandatory reasons.
D. DRS treats powered-on virtual machines with Flash Read Cache as having a required affinity to their current host and does not move them.
【多选题】
An administrator is using the Host Failures to Tolerate Admission Control Policy for a vSphere High Availability ___ cluster. When configuring this setting on the cluster, the administrator sees this error message: <Insufficient resources to satisfy HA failover level on cluster > What are two likely causes for the error? (Choose two.)(AB)
A. The hosts in the cluster are disconnected.
B. A host in the cluster is displaying an HA error.
C.
D. istributed Resource Scheduler has not been configured on the cluster.
【多选题】
What are two ways to identify TCP/IP stack information? (Choose two.)___
A. Using the vSphere Web Client
B. Using esxcli network ip netstack
C. Using esxcfg-netstack
D. Using the vSphere Client
【多选题】
Which two actions are required when enabling vFlash Read Cache for a virtual machine's virtual disk? (Choose two.)___
A. A value in the Virtual Flash Read Cache text box must be entered.
B. A Flash Resource Pool for Cache size reservation must be entered.
C. The Device backing and the block size must be configured.
D. The
E. nable virtual flash host swap cache check box must be selected.
【多选题】
What two IT infrastructure components are virtualized by vSphere Essentials? (Choose two.)___
A. Networks
B. Applications
C. Storage
D. Management
【多选题】
When attempting to access a virtual machine, an administrator is unable to login using the vSphere credentials. What two options are probable causes of the authentication failure? (Choose two.)___
A. The vSphere credentials have not been granted permissions.
B. The vSphere credentials are granted read-only permissions.
C. The vSphere credentials are granted no-access permissions.
D. The vSphere credentials are not a member of the local administrator group.
【多选题】
An administrator is performing a scripted installation of ESXi 6.x. In which three locations does the script need to be? (Choose three.)___
A. PXE Server
B. HTTPS
C. FTP
D. NFS
E. VVOLs Datastore
【多选题】
In order for a company to meet regulatory requirements, all ESXi 6.x Hosts must be configured to direct logs to a syslog server. What are two ways ESXi hosts can configured for this action? (Choose two)___
A. Use the esxcli system syslog command.
B. Edit them in the ESXi host Advanced System Settings.
C. From the Syslog collector user interface of the Web Client.
D. Syslog logging is not available for
E. SXi Hosts.
【多选题】
Which three actions can be executed when an alarm is triggered? (Choose three.)___
A. Send an email.
B. Send an SNMP trap.
C. Run a script or command.
D. Run an Orchestrator workflow.
E. Send a trigger to syslog.
【多选题】
An administrator is attempting to power on a virtual machine, but is unable to do so. Which two reasons are probable causes of the failure? (Choose two.)___
A. Storage access to the virtual machine swap file has been lost.
B. One of the virtual machine VMDK files is locked.
C. Virtual machine is running CentOS 7.0 64-bit.
D. Virtual machine has Hyper-Threading enabled.
【多选题】
An administrator has configured a host profile so that ESXi 6.x hosts will point to the corporate NTP server for time synchronization. The NTP server is located at 10.0.30.213, but time has not been synchronized properly across the ESXi hosts. The administrator reviews Host Profile settings as shown in the Exhibit. Which two steps are required to resolve the issue? (Choose two.)___
A. Correct the NTP server IP address.
B. Check the host for host profile compliance.
C. Remediate the host based on the updated host profile.
D. Change the NTP server to the FQDN as IP Addresses are not supported.
【多选题】
An administrator is attempting to migrate a large Hadoop virtual machine using vMotion. The administrator notices a delay when the machine is quiesced. The Hadoop virtual machine is processing many transactions a second to an in-memory database. Which two actions would help reduce the amount of time needed to perform a vMotion on this virtual machine? (Choose two.)___
A. Use multiple NICs for the vMotion vmkernel port.
B. Use a 10Gbps Network card for the vMotion vmkernel port.
C. Add an additional management network to help transmit the data quicker.
D. Disable Fault Tolerance before performing the vMotion.
推荐试题
【单选题】
在何种构型下加油电源10分钟后自动切断?___
A. 由勤务汇流条供电时
B. 由热汇流条供电时
C. 上述两项都对
D. 不确定
【单选题】
何时勤务汇流条有电?___
A. 当飞机电网全部接通时
B. 当客舱顶板MAINTBUS开关放ON位
C. 当加油盖板打开时
D. A和B对
【单选题】
何种构型下电瓶提供加油电源?___
A. 勤务汇流条有电
B. 勤务汇流条无电,加油盖板打开时,加油开关放正常位
C. 勤务汇流条无电,加油盖板打开时,加油开关放ON位
D. 只要加油盖板打开时,加油开关放ON位
【单选题】
在冷飞机外形(无交流或直流供电)，在哪儿可检查电瓶电压？___
A. 在ECAM电气页面
B. 在电源控制面板上
C. 无指示
D. 不确定
【单选题】
静变流机将来自电瓶汇流条的直流电压转换成：___
A. 单相115伏，400赫兹交流
B. 三相115/200伏，400赫兹交流
C.
D.
【单选题】
对于TR变压整流器,有哪些保护功能?___
A. 过热保护和最小电流保护
B. 过热保护和过压保护
C. 过热保护和过流保护
D. 不确定
【单选题】
在空中，如果所有发电机都故障，应急发电机不工作，DCESSBUS由谁供电：___
A. 电瓶热汇流条2
B. ESSTR
C. 以上都正确
D. 不确定
【单选题】
在空中，如果应急发电机工作，DCESSBUS由谁供电：___
A. 电瓶热汇流条2
B. ESSTR
C. 以上都正确
D. 不确定
【单选题】
DC电源系统中包括有（——）台主电瓶，安装在：___
A. 两台；飞机左侧电子舱内
B. 两台；飞机右侧电子舱内
C. 一台；飞机左侧电子舱内
D. 一台；飞机右侧电子舱内
【单选题】
安装在驾驶舱头顶板应急电源面板上的“EMERGENTEST”（应急发电机测试）电门，其功用是：___
A. 在任何情况下对应急马达发电机进行测试
B. 在空中状态下对应急马达发电机进行测试
C. 在地面任何状态下，对应急马达发电机进行测试
D. 在地面状态及蓝液压系统工作的情况下，对应急马达发电机进行测试
【单选题】
变压器整流器（）的功用是：___
A. 将飞机115VAC电源转换成28VDC电源，提供给飞机直流汇流条
B. 将飞机115VAC电源转换成28VAC电源，提供给飞机交流汇流条
C. 将飞机28VDC电源转换成115VAC电源，提供给飞机交流汇流条
D. 将飞机28VAC电源转换成28VDC电源，提供给飞机直流汇流条
【单选题】
当GEN2（右发电机）不可用，飞机2号电网将可从哪些电源获得电能？___
A. GEN1（左发电机）、APU发电机、地面电源
B. GEN1（左发电机）、APU发电机
C. GEN1（左发电机）
D. 应急发电机
【单选题】
当发现跳开关面板上有跳开关被拔出或跳开的情况下，应当如何进行处理：___
A. 无须理会，直接执行手上的维护工作
B. 大致检查系统状况正常后即可闭合
C. 检查是否有合法的拔出标示牌；如果没有，必须先确认该跳开关是否与系统状况相符合或造成跳开关跳出的故障已经排除，确认后才能闭合
D. 检查是否有合法的拔出标示牌；如果没有，先闭合该跳开关并对系统进行测试，以确认系统是否存在故障
【单选题】
当工作人员看到驾驶舱头顶板35VU电源面板上“EXTPWR”按钮电门上的“AVAIL”标示燃亮，这表明：___
A. 地面电源已经连接到飞机电网
B. 地面电源已经连接好
C. 地面电源不可用
D. 地面电源已经连接到勤务汇流条
【单选题】
当工作人员连接地面电源电缆到外电源插座后，电源插座托架上琥珀色的“EXTPWR/AVAIL”灯及白色的“EXT/PWRNOTINUSE”灯燃亮，这表明：___
A. 外部电源质量良好，但电源并没有连接到飞机电网上
B. 外部电源质量有缺陷，但电源并没有连接到飞机电网上
C. 外部电源质量良好，但电源已经连接到飞机电网上
D. 外部电源电缆未正确连接到飞机外电源插座上
【单选题】
电源分配系统中，电路跳开关（断路器）端头的颜色分有几种，其区别是：___
A. 1种：黑色。没有不同点
B. 2种：黑色和绿色。黑色是正常构型，绿色包含有连接到SDAC的辅助线路
C. 3种：黑色、绿色、黄色。黑色是正常构型，绿色包含有连接到SDAC的辅助线路，黄色表示处于同一系统的电路上
D. 4种：黑色、绿色、黄色、红色。黑色是正常构型，绿色包含有连接到SDAC的辅助线路，黄色表示处于同一系统的电路上，红色表明为重要系统的电路跳开关
【单选题】
电源分配系统中，某些电路跳开关头部有明显的黄色标示圈，其功用是：___
A. 标识标志，表明这些跳开关与SDAC有直接的线路联系
B. 标识标志，表明这些跳开关属飞机重要的操作系统
C. 警告标志，说明这些跳开关不允许断开
D. 帮助工作人员在跳开关面板上更容易的发现这些跳开关
【单选题】
电源分配系统中，有些处于闭合状态下的电路跳开关（断路器）头部套有红色的衬套，其功用是：___
A. 相关电路条开关处于MEL放行的构型状态下
B. 避免这些电路跳开关在空中被机组复位，以确保飞行安全
C. 同一系统的电路跳开关标识，帮助辨认和查找
D. 重要系统的电路跳开关，在通电状态下禁止拔开
【单选题】
电源系统维护中，能否在地面状态下脱开发动机上的IDG（内部脱开与发动机附件齿轮箱的连接）？___
A. 可以在地面任何情况下通过按压相应IDG电门完成脱开工作
B. 在地面且发动机必须运转的情况下，可通过按压相应IDG电门来完成脱开工作
C. 必须将飞机模拟到控制状态后，通过按压相应的IDG电门完成脱开工作
D. 必须将飞机模拟到控制状态后且发动机运转的情况下，通过按压相应的IDG电门完成脱开工作
【单选题】
电源系统中，APU发电机的输出电源性能：___
A. 115V/200V、三相、400HZ
B. 220V/380V、三相、400HZ
C. 115V/200V、单相、400HZ
D. 115V/200V、三相、50HZ
【单选题】
电源系统中，IDG（整体驱动发电机）脱开电门安装在：___
A. 驾驶舱49VU（头顶跳开关面板）
B. 驾驶舱120VU（后跳开关面板）
C. 前登机门过道头顶2000VU（跳开关面板）
D. 驾驶舱20VU（头顶控制面板），并有红色保护盖保护
【单选题】
电源系统中，安装了（——）个电瓶。___
【单选题】
电源系统中，共有两台EGIU（ElectricalGenerationInterfaceUnit）它门被安装在：___
A. 驾驶舱120VU面板（后跳开关面板）
B. 电子设备舱90VU设备架上
C. 前登机过道顶部的2000VU面板上
D. 后登机过道顶部的2001VU面板上
【单选题】
电源系统中，静变流机的作用是：___
A. 将BAT1的直流电转换为115V、400HZ交流电
B. 将BAT1的直流电转换为220V、50HZ交流电
C. 将115V的交流电转换为28V直流电
D. 将220V的交流电转换为28V直流电
【单选题】
电源系统中，每台发动机均附带一台整体驱动发电机（IDG），IDG位于发动机的：___
A. 发动机左侧，风扇包皮内
B. 发动机右侧，风扇包皮内
C. 发动机左侧，核心机匣内
D. 发动机右侧，核心机匣内
【单选题】
电源系统中，外电源的接通是通过：___
A. 操作驾驶舱头顶ELEC面板上的“EXTPWR”电门，由GCU1控制接通外部电源
B. 操作驾驶舱头顶ELEC面板上的“EXTPWR”电门，由GCU2控制接通外部电源
C. 操作驾驶舱头顶ELEC面板上的“EXTPWR”电门，由GPCU控制接通外部电源
D. 操作前登机过道顶部的2000VU面板上的“MAINTBUS”电门，由GPCU控制接通外部电源
【单选题】
电源系统中，整体驱动发电机（IDG）安装在：___
A. 发动机附件齿轮箱上
B. 发动机燃油泵上
C. 发动机滑油泵上
D. 发动机液压泵上
【单选题】
电源系统中26V交流电源由（）提供。___
A. 静变流机（STATINV）
B. 变压整流器（TR）
C. 3台115/26V变压器
D. 应急马达发电机（CSM/G）
【单选题】
电源系统中发电机控制器（GCU）的主要功能包括：___
A. 通过励磁电流控制发电电压的产生
B. 通过控制GLC（发电机电路接触器）和发电机励磁电流来保护发电机
C. 提供系统自检功能，发送关联的警告
D. A、B、C均是GCU主要功能
【单选题】
电源系统中辅助电源来自APU发电机，其作用是：___
A. 在飞行中替换一个或两个失效的发动机GEN向飞机供电；在地面状态下替换不可用的地面电源向飞机供电
B. 在飞行中仅替换一个失效的发动机GEN向飞机供电；在地面状态下替换不可用的地面电源向飞机供电
C. 在飞行中和发动机GEN共同向飞机供电；在地面状态下替换不可用的地面电源向飞机供电
D. 在飞行中和发动机GEN共同向飞机供电；在地面与地面电源共同向飞机供电
【单选题】
电源系统中通常使用什么颜色来分别标识三相电源？___
A. 红、黄、绿
B. 红、黄、蓝
C. 黄、绿、蓝
D. 红、黄、黑
【单选题】
飞机电源系统向厨房提供电能，其控制是通过：___
A. 通过驾驶舱头顶板35VUELEC面板上的“GALLEY”（部分构型为：GALY&CAB）按钮电门来控制
B. 通过驾驶舱头顶板35VUELEC面板上的“GEN1”按钮电门，通过GCU1进行控制
C. 通过驾驶舱头顶板35VUELEC面板上的“GEN2”按钮电门，通过GCU2进行控制
D. 通过驾驶舱头顶板35VUELEC面板上的“APUGEN”按钮电门，通过APUGCU进行控制
【单选题】
飞机在地面的状况下，飞机的主电源来源可能是：___
A. 左、右发电机
B. 左、右发电机；APU发电机
C. 左、右发电机；APU发电机；地面外电源
D. 左、右发电机；地面外电源
【单选题】
飞机在飞行中，正常情况下电源由（——）提供___
A. APU发电机
B. APU发电机或左、右发电机
C. APU发电机或左发电机或右发电机
D. 左、右发电机
【单选题】
关于GCU维护测试的描述，正确的是：___
A. 只能在地面状态下，并且IDG已经停止工作
B. 可以在任何状态下，但IDG已经停止工作
C. 只能在地面，但允许IDG处于任何状态
D. 系统在任何状态下均允许进行GCU的维护测试
【单选题】
驾驶舱20VU（头顶控制面板）中电源控制面板上用红色保护盖保护的左右IDG（整体驱动发电机）电门，其功用是：___
A. 接通电门，使相应的发电机开始工作
B. 接通电门，使相应的发电机向飞机提供电源
C. 接通电门，使得相应的发电机衔接到发动机上，并开始发电
D. 在故障情况下，用来脱开相应发动机IDG
【单选题】
驾驶舱内分布有哪些重要的电路跳开关面板？___
A. 49VU；105VU
B. 120VU；106VU
C. 105VU；106VU；2000VU
D. 49VU；120VU
【单选题】
驾驶舱头顶板35VUELEC面板上的两个液晶式电压表用来指示：___
A. 两台主发电机输出电压
B. TR1及TR2的输出电压
C. APU发电机及CSM/G（应急马达发电机）输出电压
D. BAT1和BAT2的电压
【单选题】
控制操作地面勤务汇流条的“MAINTBUS”电门位于：___
A. 驾驶舱49VU面板（头顶跳开关面板）
B. 驾驶舱20VU面板（头顶控制面板）
C. 驾驶舱120VU面板（后跳开关面板）
D. 前登机过道顶部的2000VU面板
【单选题】
前登机过道顶部的2000VU面板上“MAINTBUS”电门被用于：___
A. 接通客舱灯光电源
B. 接通客舱电源插座电源
C. 接通勤务汇流条电源
D. 接通厨房电源
