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【填空题】
91.DC600V供电客车触摸屏正常运行状态每隔___min记录一次车厢的运行电气参数。___
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92.客车各型电子防滑器系统工作正常时,KNORRMGS2型防滑正常显示代码为___。___
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93.DC600V供电客车逆变器启动方式为___。___)
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94.客车逆变器启动不实行___的方式称为强迫启动或突投。___
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95.三极管放大电路共有三种类型;___;共集电极电路;共基极电路。___
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96.DC600V供电列车的DC110V电力连接器采用___结构,容量为130A。___
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97.DC600V供电列车客车干线容量为___,选用的电压等级为750V。___
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98.DC600V供电列车的网络不但能实现全列监控,还能实现全列___。___
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99.25T型车的行车安全监测系统包括KAX型行车安全监测系统和___系统。___
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100.25T型客车带___的轴端轴温,超过外温43℃时,观察运行;外温+60℃或绝对温度超过90℃,应停车检查。___
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101.半导体是指导电能力介于导体和___之间的物体。___
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102.使用___前,应先将表进行开路和短路测试,检查是否良好。___
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103.把发电机三个绕组的___接在一起,自三个始端引出三根相线向外送电,这种方式叫三相电源的星形连接。___
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104.电工常用的___按其在正常运用条件下允许的最高工作温度分级,称为耐热等级。___
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105.表头内阻包括动圈绕线的直流电阻、___和固定引线的直流电阻。___
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106.电子防滑器中的___对制动缸的控制形式有排气、充气、保压三种。___
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107.放大器的级间耦合有阻容耦合、直接耦合和___三种形式。___
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108.三相感应电动机常用的起动方式有___起动和降压起动等两种。___
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109.发电机的运行特性包括空载特性、___特性、外特性等三种。___
【填空题】
110.三相鼠笼式电动机采用降压起动的目的是___。___
【填空题】
111.DC600V供电客车综合控制柜控制Q15、Q16、Q25、Q26、Q7为隔离开关,严禁___操作。___
【填空题】
112.DC600V供电客车综合控制柜控制熔断器规格必须符合要求。FU1、FU2、FU3严禁___操作。___
【填空题】
113.TCDS由车载安全监控系统、车载无线传输装置、客列检WLAN联网设备,客车整备所、___、铁路局、铁道部TCDS设备,应用以及各级中心的联网组成。___
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114.DC600V供电客车的空气预热器。___三相电流值最大。___值与平均值的偏差___时,应在10s内切断空气预热器电源进行保护。___
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115.25T型客车污物箱液位指示灯“100%位”亮时,在列车运行途中适当的位置,操作应急排放开关,排放污水。排放时间不得超过___分钟。___
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116.DC600V供电列车单车漏电电流不得大于___mA。___
【填空题】
117.DC600V供电列车单车在只有客室电热负载时,其漏电电流不得大于___mA。___
【填空题】
118.铁路客车供电方式有单独供电、___、集中供电。___
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119.目前广泛采用的直流稳压电路有两种基本形式,一是并联型稳压管稳压电路,一是___型晶体管稳压电路。___
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120.单车子车的配线绝缘电阻值应大于___。___
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121.单车母车的配线绝缘电阻值应大于___。___
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122.逆变器是将直流电变换成___的装置。 ___
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123。___Y-2。___型逆变器插座有___个接线端。___
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124.J5型发电机由___部分和转动部分组成。___
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125.蓄电池按电极和电解液的物质不同,可分为酸性蓄电池。___和___两大类。___
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126.熔断器在电路中起限制通过___电流的作用。___
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127.车电固定设备是指除车电机具以外的___装置。___
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128.普通客车配线按用途可分为_配线和播音配线两大系统。___
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129.客车电气装置由供电部分、配电、输电和连接部分及___器部分组成。___
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130.车电机具是指发电机及___装置、蓄电池、电扇和轴报器等。___
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131.接触器是用来接通或___主电路的一种控制电器。___
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A vSphere administrator manages a cluster which includes critical and non-critical virtual machines. The cluster requires different permissions for contractors and non-contractors. How can the administrator exclude the contractor group from some of the critical VMs?___
A. Apply permission for both contractors and non-contractors on the cluster level.
B. Apply permission for both contractors and non-contractors on the cluster level. Remove permission on the critical VMs for contractors.
C. Remove permission for contractors on the cluster level. Apply permission on the critical VMs for noncontractors.
D. Apply permission for both contractors and non-contractors on the VMs. Remove permission on the critical VMs for contractors.
【单选题】
In an ESXi 6.5 cluster only "NFS datastore has running or registered virtual machines" returns. A vSphere HA cluster with four hosts has admission control configured to tolerate one host failure. Which statement is true if a fifth host is added?___
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What counter should an administrator check to determine if a virtual machine is ballooning?___
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Which metric in the Exhibit would identify high latency for a virtual machine operating system?___
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What VM Monitoring setting would ensure that the failure interval for a virtual machine is defined as 120 seconds?___
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The business managers have asked the IT administrator to ensure configuration compliance in the vSphere infrastructure. The IT administrator wants to use Host Profiles to accomplish this, but is unable to do so. Why is the administrator unable to use Host Profiles?___
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【单选题】
What is the result of a “Consolidate” action on a virtual machine?___
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What is the VMware-recommended best practice for Fibre Channel zoning?___
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How can a vSphere administrator ensure that a set of virtual machines run on different hosts in a DRS cluster?___
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vCenter Server Appliance Instance can be backed up using which Client Interface?___
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What tool can capture network traffic at the uplinks, or vSwitch, or virtual port levels?___
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Which storage feature always requires the use of third-party software on ESXi?___
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An ESXi host's VMCA-Signed certificate has expired. How can the certificate be renewed?___
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Which is the correct order for upgrading vSphere components?___
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Which iSCSI initiator type can be used with any network interface card?___
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An administrator is attempting to power on a virtual machine with 32GB of memory. The operation fails with the following error: <Could not power on VM: No space left on device> <Checking the space on the virtual machine's datastore, there is 30GB free.> Which action would allow the VM to power on?___
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An administrator attempts to manually reclaim space on thin-provisioned VMFS6 volumes but finds that no additional space is being recovered. Which could be causing this?___
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An administrator has upgraded to vSphere 6.5 and also wants to use Kerberos authentication for NFS. Which can be done to the existing NFSv3 volumes to enable this feature?___
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An administrator wants to restore the vCenter Server Appliance 6.5 from backup. Where can this be accomplished?___
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The administrator wants to power on VM-K2, which has a 2GHz CPU reservation. VM-M1, VM-M2, and VM-K1 are all powered on. VM-K2 is not powered on. The exhibit shows the parent and child resource reservations. If Resource Pool RP-KID is configured with an expandable reservation, which statement is true?___
A. VM-K2 will be unable to power on because there are insufficient resources.
B. VM-K2 will be able to power on since resource pool RP-KID has 2GHz available.
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D. VM-K2 will receive resource priority and will be able to power on this scenario.
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Which is the block size on the VMFS6 datastore?___
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When installing vCenter Converter Standalone, why must an administrator perform a client-server installation instead of a local installation?___
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Which is required by vCenter Converter Standalone to convert a physical Red Hat Enterprise Linux 7 machine to a virtual machine?___
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An administrator is troubleshooting network communications between a vCenter Server and an ESXi 6.5 host. Which log shows the related events between these components?___
A. /var/log/fdm.log
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An administrator has recently upgraded from vSphere 6.0 to 6.5, and can no longer see the software iSCSI named vmhba33. Which could be the reason for this?___
A. The upgrade has changed the vmhba name.
B. vSphere 6.5 automates iSCSI configurations.
C. vSphere 6.5 no longer supports software iSCSI.
D. The upgrade has deleted the vmhba.
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An administrator is trying to vMotion a VM from his datacenter to a recovery site. Which is the maximum allowed RTT (Round-Trip Time) latency between source and destination host?___
A. 100 milliseconds
B. 150 milliseconds
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D. 10 milliseconds
【单选题】
Which is required for configuring iSCSI Software Adapter network port binding?___
A. VMkernel of the iSCSI traffic must be load balanced using Route based on IP Hash algorithm.
B. VMkernel of the iSCSI traffic must be load balanced using Route based on Source Virtual Port ID algorithm.
C. VMkernel of the iSCSI traffic must be load balanced using Route based on Source MAC Hash algorithm.
D. VMkernel of the iSCSI traffic must be bound to only one active network adapter.
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In vSphere Data Protection 6.1, which is the function of a Backup Verification job?___
A. None. Backup Verification job is not a feature of vSphere Data Protection
B. It is a manual task -Power it on -Verify the guest OS -Check started applications
C. It is an automatic process -Restore a virtual machine -Power it on -Verify that the guest OS is booted by communicating with the Backup Verification agent
D. It is an automatic process -Restore a virtual machine -Power it on -Verify that the guest OC is booted by detecting the VMware ToolsTM "heartbeats"
【单选题】
An administrator has enabled vSphere Distributed Switch Health Check. The hosts connected to that Distributed Switch all display an alert:< vSphere Distributed Switch MTU supported status > .The administrator has all of the VMkernel ports MTU sizes set to 1600. Which action will remedy this problem?___
A. Configure the Distributed Switch to MTU 9100.
B. Disconnect and reconnect the physical network cable.
C. Configure the physical switch to MTU 1600.
D. Disable the Distributed Switch MTU.
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Which Host Profile Subprofile configuration is used to configure firewall settings for ESXi hosts?___
A. Advanced Configuration Settings
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C. Security
D. Networking
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Where would a vSphere administrator find general vCenter Server logs on a vCenter Server Appliance?___
A. /var/log/vmware/vpxd/
B. /var/log/messages
C. /etc/vmware-vpx/
D. /var/log/vmware/vsan-health/
【单选题】
An administrator wishes to enable network port mirroring based on source port. Which feature should be enabled?___
A. vSphere standard switch port
B. ERSPAN
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D. VLAN
【单选题】
Which CLI command shows the physical uplink status for a vmnic?___
A. esxcli network ip connection list
B. esxcli network ip neighbor list
C. esxcli network nic get
D. esxcli network nic list
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Which is the maximum number of block devices (LUNs) that are supported by ESXi hosts that are running version 6.5?___
A. 1024
B. 512
C. 2048
D. 256
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When performing a vCenter Server 5.5 for Windows with Microsoft SQL Server Express database migration to vCenter Server Appliance 6.5, which will be the target database?___
A. Microsoft SQL Server Express 2012R2
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C. PostgreSQL
D. Oracle DB 11g
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An administrator has multiple vCenter Server 6.5 systems but cannot enable Storage I/O Control (SIOC) on a datastore shared by ESXi hosts managed by the vCenter Server systems. Which action should the administrator take to resolve the issue?___
A. Unmount the datastore and then enable SIOC on the vCenter Server system.
B. Configure the datastore to be managed by a single vCenter Server system.
C. Configure Storage DRS and then enable SIOC on the vCenter Server system.
D. Enable Raw Device Mapping (RDM) on the
E. SXi hosts.
【单选题】
“OneAppServer” is a VM template stored in a content library named “LibraryOne”, but the vSphere administrator is not able to use this template for deployment. Why is the administrator unable to deploy OneAppServer?___
A. OneAppServer must be updated before it can be deployed.
B. LibraryOne is a subscribed library and OneAppServer is not downloaded yet.
C. LibraryOne is published and optimized for syncing over HTTP.
D. OneAppServer was imported from a local file on the system.
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