【判断题】
测量隔离开关闸刀磨合处厚度,在自由状态下两弹簧片间距离≤7.5mm,闸刀接触部分厚度≥9mm。( )
A. 对
B. 错
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【判断题】
CRH2A统型动车组一级检修作业中,轮对内侧距1352~1355 mm。( )
A. 对
B. 错
【判断题】
CRH2A统型动车组,受电弓专项检查时,检查弓角无裂纹,表面磨损纵向宽度大于4mm时更换( )
A. 对
B. 错
【判断题】
CRH2A统型动车组一级检修作业中原则上动车组润滑件、磨耗件、紧固件故障以及在1小时左右可以处理完毕的故障属于一级修处理的范围。( )
A. 对
B. 错
【判断题】
CRH2A统型动车组保压试验须保压2分钟,确认总风压力下降不得大于20kpa。(只需试验一端,试验期间用风设备停用。) ( )
A. 对
B. 错
【判断题】
CRH380A统型动车组辅助电源装置在1、5、8 车。( )
A. 对
B. 错
【判断题】
CRH2A统型动车组电源系统采用冗余性设计,当发生故障时,能够进行切换,保证列车正常运行
A. 对
B. 错
【判断题】
CRH2A统型动车组的APU由APU输入辅助整流器、PWM三相输出逆变器、逆变器输出变压器、CVCF输出变压器、辅助变压器等构成
A. 对
B. 错
【判断题】
CRH2A统型动车组空调显示设定器使用的是非稳定单相AC100V系统供电
A. 对
B. 错
【判断题】
CRH2A统型动车组更换转向架时空气弹簧不用排气
A. 对
B. 错
【判断题】
CHR2A统动车组手动开闭头罩前,应先将联解限位开关NFB置于ON位
A. 对
B. 错
【判断题】
CRH2A统型动车组重连作业时,两动车组(连接状态)进入摘解线路停车,动车组均处于缓解状态
A. 对
B. 错
【判断题】
动车组由配属局、段负责统一管理、统一调配
A. 对
B. 错
【判断题】
CRH2A统型动车组主变压器温度继电器的保护温度是135℃
A. 对
B. 错
【判断题】
CRH2A统型动车组通常快速制动指令贯穿线(152线)向BCU传输得电信号,BCU启动快速制动,即在152线失电时,保持快速制动为关闭状态
A. 对
B. 错
【判断题】
CRH2A统型动车组车端103线是AC100v的电源线
A. 对
B. 错
【判断题】
CRH2A统型动车组MTr是动车组辅助变压器的代号
A. 对
B. 错
【判断题】
CRH2A统型动车组153K是紧急制动用接触器
A. 对
B. 错
【判断题】
CRH2A统型动车组重联作业完成后,第一编组司机需确认两列动车组受电弓升起的车号,正常情况下应为4和12,或者为6和12
A. 对
B. 错
【判断题】
CRH2A统型动车组供电设备布置在4,6号车顶,电传动设备布置在2、3、5、6、7车的车底
A. 对
B. 错
【判断题】
自动过分相装置使用的最高大气温度到最低大气温度为40℃~-40℃
A. 对
B. 错
【判断题】
CRH2A统型动车组不得通过半径小于190m的曲线,不得侧向通过小于9号道岔和6号对开道岔
A. 对
B. 错
【判断题】
CRH2A统型动车组抗蛇形减震器的安装螺栓的紧固力矩为350 N.m
A. 对
B. 错
【判断题】
牵引变流器冷却方式采用液体沸腾冷却机械通风方式,冷却介质采用环保的氟化碳
A. 对
B. 错
【判断题】
重联时,禁止‘后’‘前’升弓模式”,即前组动车组6号车的受电弓与后组动车组4号车的受电弓不能同时升起
A. 对
B. 错
【判断题】
处理主变压器三次侧接地故障时,断开相应单元的辅助电源装置控制NFB(APUCN),会造成相应动力单元的空调自动减半
A. 对
B. 错
【判断题】
当出现制动不足故障时,列车自动施行紧急制动作用
A. 对
B. 错
【判断题】
主空气压缩机电机的电源为三相AC400V
A. 对
B. 错
【判断题】
客室用电加热器的电源为非稳定的AC100V
A. 对
B. 错
【判断题】
辅助空压机装置是用于控制受电弓上升、VCB的开关和EGS开闭
A. 对
B. 错
【判断题】
再生电制动力的大小是随列车减速度大小成正比的
A. 对
B. 错
【判断题】
CRH2A统型动车组闭合BKK扩展供电时,无需用电设备功率降载,都可正常功率工作
A. 对
B. 错
【判断题】
CRH2A统型动车组闭合BKK扩展供电时,空调会自动减半
A. 对
B. 错
【判断题】
CRH2A统型动车组在供电状态,两侧驾驶台的制动控制手柄都未开锁时,两端都显示红色标志灯
A. 对
B. 错
【判断题】
检修CRH2C型动车组受电弓时如只需更换1条滑板时,注意新旧滑板的高度差不应超过1 mm,否则应同时更换前后滑板
A. 对
B. 错
【判断题】
CRH2A统型动车组受电弓为保证输出压力稳定,溢流孔和主排气孔始终有压缩空气间歇性排出,属正常现象
A. 对
B. 错
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冰雪天气动车组接触网导线结冰受电弓取流不畅时,限速160km/h及以下
A. 对
B. 错
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CRH2A统型动车组线号800~899代表AC220V系统
A. 对
B. 错
【判断题】
CRH2A统型动车组在速度110km/h以下、操作耐雪制动开关并操作司机制动控制器手柄可以进行耐雪制动
A. 对
B. 错
【判断题】
CRH2A统型动车组二级检修质量标准中:在绝缘测试中,主回路501C~大地间≥0.2MΩ(使用500V兆欧表)
A. 对
B. 错
【判断题】
电动空气压缩机更换润滑油时,压缩机停止后,约30分钟以后才可打开排油口,以防止润滑油温度过高导致烫伤
A. 对
B. 错
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【判断题】
齿轮的齿侧间隙分为12 个等级
A. 对
B. 错
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在机械设备中,凸轮表面误差将会引起扭转振动
A. 对
B. 错
【单选题】
What happens to the status of users already logged into ESXi Shell when a vSphere administrator enables lockdown mode?___
A. Users remain logged in and can run commands, except to disable lockdown mode.
B. Users remain logged in and can run commands, including disabling lockdown mode.
C. Users are immediately logged out of ESXi Shell.
D. Users are logged out after a timeout specified by the vSphere administrator.
【单选题】
What is the effective vSphere licensing level during the 60 day evaluation period?___
A. vSphere Foundation Essentials Plus
B. vSphere Standard
C. vSphere Enterprise
D. vSphere
E. nterprise Plus
【单选题】
To comply with security requirements, an administrator with a vCenter Server Appliance needs to force logoff of the vSphere web client after 10 minutes of inactivity.What should the administrator do to meet the requirement?___
A. Edit: /var/lib/vmware/vsphere-client/webclient.properties, modify session.timeout=10
B. Edit: /opt/vmware/vsphere-client/webclient.properties, modify session.timeout=600
C. Edit: /var/lib/vmware/vsphere-client/webclient.properties modify session.timeout=600
D. Edit: /opt/vmware/vsphere-client/webclient.properties, modify session.timeout=10
【单选题】
An administrator enables High Availability (HA) on a Virtual SAN cluster.Which network is used for HA Network Heatbeat configuration?___
A. The Management network.
B. The vMotion network.
C. The Virtual SAN network.
D. The Provisioning Traffic network.
【单选题】
A user wants to monitor a business-critical virtual machine to ensure that it doesn't run out of resources. What metric could be monitored in vRealize Operations to address this concern?___
A. Time Remaining badge
B. Compliance badge
C. Reclaimable Waste badge
D. Density badge
【单选题】
An administrator has recently installed a new ESXi 6.x Host, and during the configuration notices sporadic network problems. To check whether the issue occurred sometime during the configuration, the administrator would like to reset the system.How can this be accomplished in the shortest amount of time?___
A. Run the ESXi installer again and reinstall the host.
B. Select the Reset System Configuration option from the vSphere Client when connected directly to the host.
C. From the
D. irect Console User Interface, select Reset System Configuration.
【单选题】
A vApp is running out of compute resources when overall activity is high within the resource pool. At other times, everything is fine.What should be done to resolve this issue?___
A. Increase the size of the resource pool Shares.
B. Set the vApp's CPU and Memory Reservation Type to Expandable.
C. Set the vApp's CPU and Memory Limit to Unlimited.
D. Create a new resource pool with the existing hardware configuration.
【单选题】
A virtual machine has been renamed and an administrator is unable to find files with the new virtual machine name in the datastore.What is the reason for this?___
A. The names of the files on the datastore do not change.
B. The names of the files on the datastore have been corrupted.
C. The virtual machine needs to be re-added to the inventory.
D. The Distributed Resource Scheduler moved the virtual machine to another host.
【单选题】
An administrator has configured network connectivity for a new virtual machine, as shown in the Exhibit.What will occur with the network traffic of this virtual machine when communicating externally from vSwitch1?___
A. The virtual machine will communicate on both uplinks
B. The virtual machine will only communicate on vmnic1
C. The virtual machine will only communicate on vmnic2
D. The virtual machine will fail to communicate externally
【单选题】
An administrator is unable to create the first group in a new vRealize Operations environment. What is the likely cause of the problem?___
A. There are no group types defined.
B. The group is not defined in SSO.
C. There are more than 32 group types defined.
D. The description for the group is not provided.
【单选题】
A new vApp was built and tested in the corporate headquarters datacenter running vSphere 6.x. What condition would explain why the virtual machine is failing to boot in an offsite datacenter running on vSphere 5.5?___
A. The virtual machine was built with the default hardware version.
B. The VMFS 5 datastore is not compatible with virtual machines configured with vSphere 6.x.
C. a
D. RS 5.5 cluster cannot run virtual machines configured with vSphere 6.x.
【单选题】
An administrator is evaluating whether to deploy vCenter Server on a Windows server or on a vCenter Server appliance. The administrator has the following requirements: <A web browser will be utilized to manage the vSphere environment.> <16 ESXi hosts will be deployed.> <Licenses must be shared with a vCenter Server at another site.> <An external Oracle 10g database server will be used to host the vCenter Server database.> Why will the administrator need to deploy vCenter Server on a Windows server?___
A. Linked Mode is a requirement for the solution.
B. Oracle 10g is a requirement for the solution.
C. The vSphere web client is a requirement for the solution.
D. Management of more than 5 hosts is a requirement for the solution.
【单选题】
What is a benefit of using VMware Data Protection ?___
A. Provides support for guest-level backups and restores of Microsoft SQL Servers, Exchange Servers, and Share Point Servers.
B. Provides support for advanced storage services including replication, encryption, deduplication, and compression.
C. Provides direct access to VDP configuration integrated into the vSphere Client.
D. Reduces disk space consumed by virtual machine data using deduplication.
【单选题】
An administrator enables vSphere High Availability (HA) on an existing cluster with a large number of hosts and virtual machines. The administrator notices that the setup of vSphere HA on some of the hosts is failing. What step, if taken, might resolve this issue?___
A. Increase the value of the config.vpxd.das.electionWaitTimeSec setting.
B. Set the value of vpxd.das.aamMemoryLimit to 256.
C. Set the value of the das.useDefaultIsolationAddress setting to False.
D. Increase the value of the das.iostatsinterval setting.
【单选题】
An ESXi 6.x host consists of 24 logical cores. Hyperthreading is enabled on the host. What is the maximum number of vCPUs that can be assigned to a virtual machine on this host?___
A. 24
B. 48
C. 64
D. 128
【单选题】
By default, each ESXi 6.x host is provisioned with a certificate from which root certificate authority?___
A. RedHat Certificate Authority
B. VMware Certificate Authority
C. DigiCert Certificate Authority
D. Verisign Certificate Authority
【单选题】
An administrator is adding an NFS datastore as shown in the Exhibit. What is the purpose of the Servers to be added list?___
A. It contains the IP addresses of the NFS Storage Server to provide multipathing capability.
B. It contains the IP addresses of the ESXi hosts that mount the datastore.
C. It contains the IP addresses used for
D. ynamic Discovery of targets.
【单选题】
An administrator reports that the System Event log data is only available for 24 hours when reviewing the Hardware Status tab. Which condition could be responsible for the loss of data?___
A. A Reset event log was executed.
B. The statistical collection level was set to a value of 1.
C. The boot disk of the host is corrupt.
D. Syslog has been configured at the vCenter Server level.
【单选题】
During an upgrade, the ESXi 6.x installer finds an existing version of ESXi and a VMFS3 volume. No virtual machines exist on the host or VMFS3 volume. The requirement is to upgrade to VMFS5. Which option should be chosen to meet this requirement?___
A. Upgrade ESXi and preserve the VMFS datastore
B. Install ESXi and preserve the VMFS datastore
C. Install ESXi and overwrite the VMFS datastore
D. Upgrade
E. SXi and overwrite the VMFS datastore
【单选题】
A vSphere 6.x Standard Switch is configured with 4 virtual machine portgroups, as shown in the exhibit. Which portgroup would be utilized by default when creating a new virtual machine?___
A. Access Network
B. DMZ Network
C. VM Network
D. Virtual Machine Network
【单选题】
Which vSphere 6.x feature will allow an organization to utilize native snapshots?___
A. Virtual Volumes
B. Virtual SAN
C. VMFS3
D. VMFS5
【单选题】
An administrator is creating a new vSphere Distributed Switch that will be utilized with a specific vSphere Cluster. The cluster itself contains a mix of ESXi 5.x and 6.x Hosts. Which Distributed Switch version should be created to support this configuration?___
A. Distributed Switch: 6.0.0
B. Distributed Switch: 5.0.0
C. Distributed Switch: 5.1.0
D. Distributed Switch: 5.5.0
【单选题】
Which load balancing policy, previously limited to vSphere Distributed Switches, is now available on vSphere Standard Switches with vSphere 6.x?___
A. Route based on physical NIC workload
B. Route based on IP Hash
C. Route based on the originating virtual port
D. Route based on Source MAC Hash
【单选题】
A storage administrator is not seeing full utilization of all bandwidth from an ESXi host. The vSphere administrator observes the adapter details, as shown in the Exhibit. What is the probable cause of this issue?___
A. Another path needs to be used to allow full utilization of the bandwidth.
B. The array is not setup to use the correct multipathing policy.
C. There are no virtual machines on the host.
D. No traffic is being sent across it because a path failed.
【单选题】
A storage administrator is not seeing full utilization of all bandwidth from an ESXi host. The vSphere administrator observes the adapter details, as shown in the Exhibit. What is the probable cause of this issue?___
A. Another path needs to be used to allow full utilization of the bandwidth.
B. The array is not setup to use the correct multipathing policy.
C. There are no virtual machines on the host.
D. No traffic is being sent across it because a path failed.
【单选题】
An administrator has just completed performing an interactive installation of ESXi 6.x and is booting the host. How is the network initially configured?___
A. The network is configured by Automatic Private IP Addressing (APIPA).
B. The network is configured based on the settings detected in DNS.
C. The network is configured with the address as specified in the installer.
D. The network is automatically configured by DHCP.
【单选题】
You have just installed an ESXi 6.x Host. As part of your company security regulations, a security banner must be presented on the console of the host. How can this action be accomplished?___
A. Configure the Advanced Settings > Annotations screen of the ESXi host.
B. This is configured from the Direct Console User Interface configuration menu.
C. It is not possible to configure a security banner for the ESXi host.
D. From vCenter Server, this setting is configured globally in the vCenter Server configuration.
【单选题】
An administrator is only able to see the Health Badge when using the vRealize Operations user interface. What is the likely cause of this behavior?___
A. The vRealize Operations Foundation License is in use.
B. The vmware-sps service failed to start.
C. The vRealize Operations Standard License is in use.
D. The vmware-rbd-watchdog service failed to start.
【单选题】
An administrator has configured an alarm to be notified when a virtual machine meets either of these conditions: <High virtual CPU> <High active memory consumption.> <The alarm is only triggering when both of the conditions are met.> What can be done to correct the alarm behavior?___
A. Edit the alarm and select Trigger if ANY of the following conditions are satisfied.
B. Edit the alarm and select Trigger if ALL of the following conditions are satisfied.
C. Create two separate alarms, one for CPU and one for memory and link them together with ESXCLI.
D. Delete the existing alarm and create a new event based alarm.
【单选题】
An administrator creates an ESXi cluster using vSphere Auto Deploy. The ESXi hosts are configured to get a management IP address from a DHCP server. The administrator needs to troubleshoot the management network on one of the hosts. Which DCUI option should the administrator use to renew the DHCP lease? ___
A. Restart Management Network
B. Restore Network Settings
C. Test Management Network
D. Configure Management Network
【单选题】
An administrator is attempting to restore a number of files in a directory within the Operating System of a virtual machine. How can the administrator restore the files from a previous backup? ___
A. Use the File Level Restore option from the selected backup of the virtual machine in the vSphere Web Client.
B. Connect to the File Level Restore tool from a web browser in the virtual machine.
C. Connect to the File Level Restore tool from the VMware
D. ata Protection appliance.
【单选题】
After selecting an object in vRealize Operations, how can a user compare the badge values of related child objects? ___
A. Use the Scoreboard tab
B. Use the Relationship tab
C. Use the Members tab
D. Use the Overview tab
【单选题】
You want to deploy a vApp and dynamically assign IP addresses without a DHCP server on the network. Which action would you take to accomplish this task? ___
A. Enable IP pools.
B. Configure a local DHCP server in the vApp.
C. Enable NAT on the vApp router.
D. Configure the guest OS for workgroup and WINS.
【单选题】
What is the optimal configuration when building a virtual machine for a single-threaded Windows application? ___
A. Deploy single-threaded applications on uniprocessor virtual machines.
B. Deploy single-threaded applications on symmetric multi-processor virtual machines.
C. Tune single-threaded applications to take advantage of symmetric multi-processor resources.
D. Tune Single-threaded applications at the hypervisor level.
【单选题】
An administrator has created the resource pool configuration shown in the Exhibit. Based on the exhibit, which virtual machine(s) can be successfully powered on? ___
A. VM-M1 only
B. VM-K1 only
C. VM-K1 and VM-K2 only
D. VM-K1, VM-K2, and VM-M1
【单选题】
Which vSphere 6 Enterprise Edition feature will allow an organization to ensure that critical multi-threaded applications have the maximum possible uptime? ___
A. Fault Tolerance
B. High Availability
C. Distributed Resource Scheduler
D. App HA
【单选题】
An administrator has a virtual machine that requires four times the compute resources than other virtual machines on the same ESXi 6.x host. How should the administrator configure the virtual machine settings, in order to be prepared for any resource contention? ___
A. Set the shares of the priority virtual machine to High and the rest to Low.
B. Set the shares of the priority virtual machine to High.
C. Set the shares of the priority virtual machine to High and the rest to Normal.
D. Set the shares of the priority virtual machine to Normal and the rest to Low.
【单选题】
Which type of Adapter does not require vmkernel networking? ___
A. Independent Hardware iSCSI Adapter
B. Dependent Hardware iSCSI Adapter
C. Software iSCSI Adapter
D. Software FCoE Adapter