【填空题】
9.ERMe记录容量___,采样周期___
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答案
512M|100ms
解析
暂无解析
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【填空题】
10.PIS系统中,车载数字电视机顶盒输出2路音频1路视频给___,然后将模拟信号转换为数字信号发送到PIS以太网络上。
【填空题】
11.每台空调机组制冷时部件启动顺序为___。
【填空题】
12.空调制热时启动顺序为___。
【填空题】
13.___用于对列车音频总线传来的信号进行功率放大,使乘客听到各种所需的到发信息。
【填空题】
14.空调机组高压压力开关动作值为___断开,___ 接通。
【填空题】
15.空调机组低压压力开关动作值为___ 接通,___断开。
【填空题】
16.当列车处于非ATO 模式下时,保持制动的施加由制动系统负责,保持制动的缓解由___负责。
【填空题】
17.当TCMS故障时,保持制动的管理全部由___自身负责。
【填空题】
18.在ATO 模式下,TCMS 仅接受来自___ 的保持制动命令。
【填空题】
19.长沙地铁2号线一期车辆转向架的轮缘润滑方式采用___。
【填空题】
停放制动不同于一般的充气→制动,排气→缓解,它是通过___而产生制动作用,能满足列车较长时间断电停放的要求。
【多选题】
简述长沙地铁2号空压机空气净化单元工作流程___。
A. 进入本单元的压缩空气首先通过气水分离器分离压缩空气中的液态水、油和部分固体粒子,分离出来的液态水、油和固体粒子等污染物通过电磁排污阀自动排出;
B. 经气水分离器初步分离净化的压缩空气接着进入高效过滤器进行过滤净化,过滤凝聚的水(雾)、油(雾)及各种粒子等污染物通过电磁排污阀自动排出;
C. 经高效过滤器过滤后的压缩空气接着进入吸附式干燥器进行干燥净化以去除压缩空气中的水蒸汽;经吸附式干燥器干燥后的压缩空气接着进入灰尘过滤器过滤净化以去除吸附式干燥器在运行过程中产生并由压缩空气携带的粉尘,过滤聚结的粉尘通过手动排污阀人工定期排放;
D. 经灰尘过滤器过滤后的压缩空气最后进入用气端。
【多选题】
保压制动是为防止车辆在停车前的冲动,使车辆平稳停车,EBCU内部设定的执行程序,请简述它是如何实施的___。 它分两个阶段实施:
A. 第一阶段:当列车制动到速度低于设定的摩擦制动介入值后,牵引控制单元触发保压制动信号,同时输出给EBCU,这时,由牵引控制单元控制的电制动逐步退出,由EBCU控制的气制动替代。
B. 第二阶段:接近停车时,一个小于制动指令的保压制动由EBCU开始自动实施,即瞬时地将制动缸压力降低。
【多选题】
在什么情况下才可以实现开门?___
A. 零速信号激活
B. 使能信号激活
C. 有开门指令
D. 此外必须出现下列情况:车门未隔离,紧急装置未操作
E. 如果上述任一情况未出现,无法实现开门。
【多选题】
TCMS检测进行牵引封锁的条件是什么? ___
A. 司机室联锁故障;牵引系统方向故障
B. 车门未全部关闭,且无“车门旁路”信号
C. 列车停放制动未缓解,且无“停放制动缓解旁路”信号
D. 列车安全环路断开或者列车完整性环路断开
E. 列车发出牵引指令后,5秒内列车仍然不能缓解所有制动
F. 列车总风管压力低于600kPa;
G. 3个及以上DCU故障;
H. 7个及以上转向架制动被切除。
【多选题】
简要描述主电路中主隔离开关、高速断路器、差分电流传感器、充电接触器、短接接触器、主接地开关的作用?___
A. 主隔离开关用于主电路的隔离以及通过机械连锁开关将支撑电容器的两端通过低值电阻连接后释放能量;
B. 高速断路器用于主电路的故障保护;
C. 差分电流传感器用于检测后续电路的接地故障;
D. 充电接触器用于支撑电容器的预充电;
E. 短接接触器用于电网直接向牵引逆变器供电;
F. 主接地开关用于主电路的接地隔离等。
【多选题】
简述制动斩波单元功能 ___
A. 再生制动时,若电容两端电压上升至一定值时,触发电阻制动斩波模块,调节斩波模块开关元件导通角,将电容两端电压稳定在一定的电压值,此时为再生和电阻混合制动。
B. 若电容两端电压或电网电压回落,则由电阻制动转换为再生制动。
C. 牵引或制动工况时,通过触发导通斩波模块,能抑制因空转等原因引起的瞬时过电压。
【多选题】
简述人工广播失效的检查方法___。
A. 将激活端切换到对面司机室,如果可以进行人工广播则为广播控制盒故障。
B. 如果单节车厢有没广播则为该车厢功放设备故障。
C. OCC广播开关处于闭合状态时会造成人工广播暂时失效。
D. 检查广播控制盒面板上的“激活”指示灯是否亮起,没有亮表示处于非激活端状态,无法进行人工广播。
【多选题】
TCMS 可以对列车运行的相关参数进行积累计算和保存,便于列车检修和维护。记录的参数包括哪些内容?___
A. 列车累计运行里程(km);
B. 列车日运行里程(km);
C. 列车累计牵引能耗(kWh);
D. 列车累计电制动能耗(kWh);
E. 列车累计辅助系统能耗(kWh);
F. TCMS 系统累计运行时间(h)。
【多选题】
请阐述高速断路器以及隔离开关的功能。___
A. 高速断路器的功能:当在电路中出现严重的干扰情况时,比如过流、牵引逆变器故障或短路等,高速断路器能安全断开牵引设备与接触电网的连接,以此来保护牵引逆变器等设备。
B. 隔离开关的功能:一个是用于车间电源转换,另一个则是高速断路器前的隔离接地
【多选题】
DCU软件主要由如下控制功能软件组成?___
A. 变流器逻辑保护及特性控制。
B. 速度处理及斩波控制。
C. 粘着利用控制。
D. 牵引电机控制
【多选题】
牵引逆变器输入电路中线路电感器的作用是什么?___
A. 牵引系统中的线路电感器与电容器组成LC滤波电路,作用是减少线路电压的瞬变和谐波,稳定逆变单元的输入直流电压。
B. 保证逆变单元得到一个优质的直流电压。
C. 同时线路电感器也起扼流作用,目的是防止电感器后端在引起接地短路或逆变单元故障产生的瞬间浪涌电流时,起到扼制突变和平顺电流的作用。
D. 因此线路电感器通常也会称为平波电感器。
【多选题】
简述牵引箱中电容器充放电的过程 ___
A. 当列车牵引准备好,主电路高速断路器(HB)闭合后,闭合接触器(KM2),通过受流器(+206=11-X11)输入的高压电源经隔离开关(MQS)、充放电电阻(R1)给支撑电容(C)充电,当电容电压在一定时间且上升到一定值时, KM1 闭合,电容充电完成。
B. 在正常情况下,电容的放电由固定放电电阻(R4)完成,将电容端电压放电到 50V 以下的时间小于5min。
C. 当对高压电路和 VVVF 逆变器检修或维护保养时,则充放电电阻(R1)与隔离开关的联锁辅助开关( MQS1 )形成直流支撑电容的快速放电回路,从而使电容通过放电电阻快速放电。
【多选题】
辅助高压箱的工作原理是什么? ___
A. 在刀开关BQS 置于运行位同时刀开关 AQS 置于运行位情况下,受流装置输入的 DC1500V 高压通过刀开关BQS,刀开关AQS 和熔断器 AF 为辅助电源提供电源,熔断器 AF 对主电路起保护作用。当采用车间电源对辅助电源供电时,将BQS 置于车间位,辅助电源即转为车间电源供电。该电路有联锁功能,即当使用车间电源供电或置于切除位时,受流装置被禁止升弓动作。
B. 车间电源实现互锁电路,辅助高压箱车间电源柜门处设有限位开关 KT1,实现两 TC 车车间电源互锁功。柜门闭合时,KT1 处于“断开”状态;当柜门打开时,KT1 变为“闭合”状态,外部控制继电器线圈得电,地面电源通过车间电源为 SIV 供电,当另一车辅助高压箱车间电源柜门打开时,本车外部控制继电器线圈失电,无法送入高压。即实现当一车辅助高压箱使用车间电源供电,另一车辅助高压箱车间电源柜门不允许打开功能。
【多选题】
试分析LC 滤波电路作用?___
A. LC 滤波电路吸收直流输入端的谐波电压,对输入电源网络的高频信号和电压尖峰干扰有抑制作用,
B. 同时又能抑制逆变器对输入电源网络的干扰,并使电容器C两端电压保持稳定并将电压波动限制在允许范围内。
【多选题】
试分析跳主断的原因?___
A. 差分电流大于50A、充电超时、充电接触器(KM2)卡合、短接接触器(KM1)卡合;
B. 元件故障、硬件判断网压过压、硬件判断直流过压、硬件判断直流过流、斩波1过流、斩波2过流、电源故障、板不在位;
C. 软件判断网压过压、软件判断中间电压过压、MCU生命信号中断、主断线圈减载故障。
【多选题】
在哪些情况下,TCMS 将取消发向所有的DCU 的牵引指令及牵引/制动设定值: ___
A. 司机室连锁故障;牵引系统方向故障;
B. 车门未全部关闭,且无“车门旁路”信号;
C. 列车停放制动未缓解,且无“停放制动缓解旁路”信号;
D. 列车安全环路断开或者列车完整性环路断开;
E. 制动系统触发紧急制动 (针对紧急制动列车线到某个制动系统的硬线断落这种情况);
F. 列车发出牵引指令后,5 秒内列车仍然不能缓解所有制动;
G. 列车总风管压力低于 5.5bar,且无“总风压力旁路”信号;
H. 列车速度大于 5Km/h,非制动工况下检测到列车制动未缓解。
【多选题】
试分析扩展供电逻辑? ___
A. 当网压达到额定值且持续15 秒后,才进行扩展供电逻辑 ;
B. 检测到一台 SIV 通信故障、380V 输出不正常或者SIV 的KMA 继电器未闭合 ;
C. 向空调发送减载指令 ;
D. 如果在 15S 内接收不到空调完成减载的反馈,再将空调设置为通风模式(空调在与网络通信中断的情况下,必须保证不得处于全载工况) ;
E. 当空调处于半载或者通风工况下, TCMS 通过DXM 输出“扩展供电”指令(高电平有效);
F. SIV 恢复正常工作后,TCMS 立即撤销“扩展供电”指令,5S 后再撤销“空调减载”指令;
G. TCMS 发出“扩展供电”指令后1 秒内收不到“扩展供电反馈”信号,TCMS 报“扩展供电接触器故障”。
【多选题】
在哪些情况下,TCMS 系统的HMI 会提示司机进入紧急牵引模式: ___
A. 出现两个或两个以上DCU 通信故障(由VCMe 诊断);
B. 出现操作端 HMI 通信故障(由HMI 诊断);
C. 出现两个或两个以上BCU 通信故障(由VCMe 诊断);
D. 司机控制器牵引/制动手柄电位器故障(由VCMe 诊断)。
【多选题】
当主电路断开时,如何对滤波电抗器进行放电?___
A. 通过续流二极管V1和阻尼电阻R2组成续流支路,
B. 在主电路断电时,用以释放滤波电抗器中的能量。
【多选题】
哪些条件均满足时 ,闭合充电接触器。 ___
A. 主断反馈状态为闭合
B. 方向手柄非零位
C. 网压大于1300V
D. 无斩波开通标志
【多选题】
哪些条件均满足时 ,闭合短接接触器。 ___
A. 充电接触器反馈状态为闭合已达3s
B. 中间电压不低于1300V且大于网压的85%
C. 方向手柄非零位
【多选题】
试分析空调预冷模式:___
A. 如果系统一开机即检测到室内温度 Ti≥31.5℃,则执行预冷模式。
B. 首先四台通风机均运行,同时新风阀关闭,回风阀打开,延时35s后两点断开,以下动作同全冷模式相同;
C. 若在自动模式下,ACCU如有收到MVB发过来的“关闭预冷信号”则立即退出预冷模式,执行UI553自动模式。
D. 当Ti温度降到Tic-1℃以下,或者预冷持续15分钟后,预冷状态结束,此时系统根据目标温度和室内温度差值工作在相应工作模式,新风阀,回风阀均打开。
【多选题】
当那些条件同时满足时,TCMS通过DXM输出“扩展供电”指令(高电平有效): ___
A. 检测到一台SIV通信故障、380V输出不正常或者SIV的KMA继电器未闭合 ;
B. 向空调发送减载指令 ;
C. 如果在15S内接收不到空调完成减载的反馈,再将空调设置为通风模式(空调在与网络通信中断的情况下,必须保证不得处于全载工况) ;
D. 当空调处于半载或者通风工况下, TCMS通过DXM输出“扩展供电”指令(高电平有效)SIV恢复正常工作后,TCMS立即撤销“扩展供电”指令,5S后再撤销“空调减载”指令,
E. TCMS发出“扩展供电”指令后1秒内收不到“扩展供电反馈”信号,TCMS报“扩展供电接触器故”。
【多选题】
年检作业动态调试中,需要做哪些旁路试验?___
A. 门零速旁路功能检查;
B. 门关好旁路功能检查;
C. 所有制动缓解旁路功能检查;
D. 停放制动旁路功能试验;
E. 警惕旁路功能。
【单选题】
司机台气压表里白色指针表示___。
A. Tc车主风管压力
B. 主风管压力
C. Tc车主风缸压力
D. 主风缸压力
【单选题】
司机台气压表里红色指针表示___。
A. Tc车主风管压力
B. 主风管压力
C. Tc车第一轴制动缸压力
D. 主风缸压力
【单选题】
受电弓升弓气压为___
A. 550kpa
B. 700kpa
C. 500kpa
D. 450kpa
【单选题】
当主风管压力小于___时,列车封锁牵引。
A. 550kpa
B. 600kpa
C. 500kpa
D. 450kpa
【单选题】
当主风管压力小于___时,列车产生紧急制动。
A. 550kpa
B. 700kpa
C. 500kpa
D. 450kpa
推荐试题
【单选题】
An administrator wants to add a web server to an existing multi-tier application consisting of three virtual machines: <A web server> <A database server An application server> The web server should be added to the application when the primary web server reaches: <70% vCPU utilization> <55% active memory> Which option will achieve this result? ___
A. Create a virtual machine alarm with an action to run a script that starts a new instance of the web server.
B. Create a host cpu and memory alarm with an action to run a script that starts a new instance of the webserver.
C. Configure HA application monitoring for the web server and set it to trigger deployment of a new instance of the web server.
D. Configure Fault Tolerance on the virtual machine and leave the secondary machine disabled until needed.
【单选题】
An administrator has an application that requires connection directly to PCI devices through a virtual machine. What is a limitation of this configuration? ___
A. Devices must be reserved for PCI passthrough on at least one host on which the virtual machine will run.
B. Snapshots are not supported with DirectPath I/O passthrough devices.
C. A maximum of 18 PCI vSphere
D. irectPath devices can be added to a virtual machine.
【单选题】
The vSphere administrator is configuring directory services for an ESXi host: What should the vSphere administrator do to configure the host to use CAM services? ___
A. Check the Use vSphere Authentication Proxy checkbox.
B. Set Select Directory Service Type to CAM services.
C. Specify CAM$ for the
D. omain.
【单选题】
Which statement is true regarding the licensing of vCenter Server? ___
A. The license for vCenter Server must be provided at the time of installation.
B. Changing the license assigned to vCenter Server requires a restart of the vCenter Server service.
C. Virtual machines can still be powered on if the vCenter Server license expires.
D. Licensing for a single vCenter Server installation is determined by the number of managed virtual machines.
【单选题】
When configuring vSphere Replication for a virtual machine, what is the lowest Recovery Point Objective (RPO) that can be selected? ___
A. 1 min
B. 5 min
C. 10 min
D. 15min
【单选题】
A developer needs to create a multi-tier development stack for a home lab. Which vSphere product will support the architecture required for the least software cost? ___
A. vSphere Hypervisor
B. vSphere Essentials
C. VMware Player
D. VMware Workstation
【单选题】
An administrator is installing Windows into a virtual machine. The DVD has been mounted on the Host and configured for the virtual machine as shown in the Exhibit. Based on the exhibit, when the virtual machine is booted, why would it attempt to search for a PXE server? ___
A. The CD/DVD device is not connected.
B. The ISO is in the incorrect storage location.
C. The OS minimum requirements have not been met.
D. The CD/DVD device is not set to Client Device.
【单选题】
What component must be installed prior to deploying a vCenter Server in vSphere 6.x? ___
A. vCenter Identity Services
B. Platform Services Controller
C. vCenter Single Sign-On
D. Client Integration Plug-In
【单选题】
What is a valid plug-in status for a plug-in that has been added to a vSphere client? ___
A. Disabled
B. Unknown
C. Stopped
D. Installed
【单选题】
Users of an application are reporting performance issues. The following performance values are observed in the vSphere Web Client: <Host CPU utilization is 90%> <Virtual Machine memory utilization is consistently greater than 90% CPU Ready values are higher than 20%> What could be the cause of the application performance issue? ___
A. The host is lacking the CPU resources required to meet the demand.
B. The host is lacking the memory resources required to meet the demand.
C. The virtual machine is lacking the CPU resources required to meet the demand.
D. The virtual machine is lacking the memory resources required to meet the demand.
【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 re-provisioning an ESXi host and moving it to another datacenter. Which DCUI option should the administrator use to revert the system configuration to the default settings? ___
A. Reset System Configuration
B. Rebuild Default System Configuration
C. Revert System Configuration
D. Renew Default System Configuration
【单选题】
An administrator has just completed installing an ESXi 6.x host, but doesn't know what address has been configured. Where is the ESXi host IP address configured? ___
A. RVC console
B. Direct Console User Interface
C. vSphere Web Client
D. vSphere Client
【单选题】
When is it possible to place a VMFS5 datastore in maintenance mode? ___
A. When it is a member of a Storage DRS cluster
B. When it is a member of Virtual SAN cluster
C. When it is a member of a multi-extent datastore
D. When it is a member of a Virtual Volume
【单选题】
Immediately after installing ESXi, an administrator observes that the Configure Lockdown Mode option is grayed out in the Direct Console User Interface (DCUI). What is the most likely explanation? ___
A. The host has not yet been added to a vCenter Server.
B. The BIOS on the host does not have NX/XD enabled.
C. The ESXi host is running in evaluation mode.
D. The host requires a reboot before this feature is available.
【单选题】
Immediately after installing ESXi, an administrator observes that the Configure Lockdown Mode option is grayed out in the Direct Console User Interface (DCUI). What is the most likely explanation? ___
A. The host has not yet been added to a vCenter Server.
B. The BIOS on the host does not have NX/XD enabled.
C. The ESXi host is running in evaluation mode.
D. The host requires a reboot before this feature is available.
【单选题】
Which Single Sign-On deployment mode should an administrator use for two 6.x vCenter Servers configured with linked mode? ___
A. Basic Single Sign-On with vCenter Server Heartbeat
B. Multisite Single Sign-On
C. Basic Single Sign-On
D. Single Sign-On with Linked Mode
【单选题】
What is required when changing a virtual machine name using the vSphere Web Client? ___
A. Verify connectivity to the ESXi host where the virtual machine is running and its inventory list is accessible.
B. Verify in which datastore the virtual machine resides and that you have access and its inventory list is accessible.
C. Verify that virtual machine files are stored in the same datastore and can be accessed in the datastore browser list.
D. Verify the virtual machine is not running in Fault Tolerant mode and that it is not in a Distributed Resource Scheduler cluster.
【单选题】
An administrator deploys vRealize Operations into a vSphere 6.x environment. After the deployment, the administrator notices that badges are not appearing. What is a likely cause of this behavior? ___
A. Badges do not appear until you register vRealize Operations with vCenter Server.
B. Badges do not appear until you register a vCenter Server in vRealize Operations.
C. The vRealize Operations appliance needs to be redeployed.
D. The vCenter Server appliance needs to be redeployed.
【单选题】
How are ports scaled on vSphere Standard Switches (vSS)? ___
A. Ports on a vSS can be dynamically scaled up and down.
B. Ports on a vSS can only be statically scaled up or down.
C. Ports on a vSS can only be dynamically scaled down.
D. Ports on a vSS can only be dynamically scaled up.
【单选题】
A High Availability (HA) cluster is configured to respond to a given number of host failures. The cluster contains virtual machines configured with these settings: VM1 has a 1GHz CPU reservation and no Memory reservation VM2 has a 2GHz CPU reservation and no Memory reservation VM3 has no CPU reservation and no Memory reservation . Given this information, what is the correct slot size for the cluster? ___
A. The CPU Reservation should be set to 32MHz and the memory reservation should be set to 32MB plus memory overhead.
B. The CPU reservation should be set to 1 GHz and the memory reservation should be set to 0MB plus memory overhead.
C. The CPU reservation should be set to 2 GHz, and the memory reservation should be set to 0MB plus the virtual machine memory overhead.
D. The CPU reservation should be set to 2 GHz, and the memory reservation should be set to 32MB, plus the virtual machine memory overhead.
【单选题】
An administrator is planning a vSphere infrastructure with the following specific networking requirements: <The ability to shape inbound (RX) traffic> <Support for Private VLANs (PVLANs)> <Support for LLDP (Link Layer Discovery Protocol)>. What is the minimum vSphere Edition that will support these requirements? ___
A. vSphere Essentials Plus
B. vSphere Standard
C. vSphere Enterprise
D. vSphere
E. nterprise Plus
【单选题】
When you add an ESXi 6.x host to a new Cluster, which vSphere object owns the CPU and Memory resources of the hosts? ___
A. vCenter Server
B. Datacenter
C. Cluster
D. Host
【单选题】
A user is trying to retrieve objects from a SharePoint server and finds the request is taking an excessive amount of time. An administrator tries to isolate the issue and notes the following: Application performance is poor when compared to virtual machines on other hosts. Performance improves when the virtual machine is moved to another host. The virtual machine encounters higher than expected CPU %Ready times. What conclusion can be reached regarding the performance issues for this virtual machine? ___
A. Host Power Management is directly impacting virtual machine performance.
B. The virtual machine has a large number of snapshots.
C. The Path Selection Policy for the storage device is set differently on the affected host.
D. Network I/O control is configured for the portgroup.
【单选题】
A virtual machine template is accidently removed from the vCenter Server Inventory. Which method would be used to recover the template back into the environment?___
A. Use the datastore browser to locate the template, then right click and add the .vmtx file to inventory.
B. Use the datastore browser to locate the template, then right click and add the .vmx file to inventory.
C. Using the Managed Object Browser and adding the template from the ManagedObjectReference:GuestFileManager object.
D. Using the Managed Object Browser and adding the template from the ManagedObjectReference:VirtualDiskManager object.
【单选题】
A vSphere administrator needs to backup a virtual machine that has a Microsoft SQL Server Database installed. Which solution allows for an application quiesce to occur during backup?___
A. VMware vCenter Converter
B. VMware vCenter Site Recovery Manager
C. VMware vSphere Replication
D. VMware vSphere Data Protection Advanced
【单选题】
An administrator is migrating a virtual machine from a Test cluster to a Production cluster. The two environments do not have any shared storage. What is the easiest way to accomplish this task? ___
A. Perform a Storage vMotion.
B. Perform a regular vMotion.
C. Perform a Virtual to Virtual migration.
D. Perform a backup and restore using VMware Data Protection.
【单选题】
An administrator must determine an appropriate backup solution, given these conditions: 50 of the virtual machines are in a resource pool named Finance. 50 of the virtual machines are in a resource pool named QA. Which solution allows an administrator the ability to backup 100 virtual machines? ___
A. Use Snapshot Manager on the vCenter Server to backup the virtual machines.
B. Use the VMware Consolidated Backup (vcb) tool on the ESXi Host to backup the virtual machines.
C. Use the VMware Data Recovery (VDR) Appliance on the vCenter Server to backup the virtual machines.
D. Use the VMware Data Protection (VDP) Appliance on one of the
E. SXi Hosts to backup the virtual machines.
【单选题】
What is a benefit of using Enhanced vMotion Compatibility for an environment? ___
A. EVC masks CPU features to allow compatibility between hosts that are dissimilar.
B. EVC allows for cross platform vMotion to occur.
C. EVC enables Long
D. istance vMotion.
【单选题】
How many Link Aggregation Groups (LAGs) can be configured on a vSphere 6.x Distributed Switch? ___
A. 64
B. 96
C. 128
D. 256
【单选题】
How many Link Aggregation Groups (LAGs) can be configured on a vSphere 6.x Distributed Switch? ___
A. 64
B. 96
C. 128
D. 256
【单选题】
An administrator needs to verify that vMotion operations can be performed in a vSphere data center.What round trip time (RTT) latency is the maximum value that will allow vMotion operations to succeed? ___
A. 50ms RTT
B. 100ms RTT
C. 150ms RTT
D. 200ms RTT
【单选题】
A storage administrator has reported that full utilization of all bandwidth from an ESXi 6.x host is not being seen. In troubleshooting the issue, the Adapter details are shown in the Exhibit. Based on the exhibit, what is cause of the issue? ___
A. The array is not setup to use the correct multipathing policy.
B. There are no virtual machines on the ESXi host.
C. Not all links are used because a path is disabled.
D. Another path needs to be configured.
【单选题】
An administrator is migrating a powered-on virtual machine, as shown in the exhibit. Which option should be selected to perform a Storage vMotion of the VM? ___
A. Change storage only
B. Change VM compute resource only
C. Change both compute resource and storage, changing the compute resource first.
D. Change both compute resource and storage, changing the storage resource first.
【单选题】
An administrator is attempting to enable Storage I/O Control on a datastore, but it is failing. What is the likely reason for this failure? ___
A. The host is connected to a datastore is running on ESX 4.0.
B. The host is connected to a Fibre Channel storage array.
C. The datastore has multiple extents.
D. The datastore is managed by a single vCenter Server.
【单选题】
A mission-critical virtual machine built on vSphere 4.1 needs to be moved to an ESXi 6.x host.Which virtual hardware version is needed to move the virtual machine without upgrading? ___
A. 6
B. 7
C. 10
D. 11
【单选题】
An administrator is analyzing a virtual machine as shown in the Exhibit. What is the current long term risk for this virtual machine? ___
A. The virtual machine may run out of memory before April 27.
B. The virtual machine may continue to function after April 27.
C. The virtual machine has adequate memory configured for operation for the next 120 days.
D. The virtual machine has adequate memory reservation configured for operation for the next 120 days.
【单选题】
An administrator is monitoring a High Availability (HA) and Distributed Resource Scheduler (DRS) enabled cluster and has noticed that virtual machines in the cluster are being migrated without user intervention. Why is this happening? ___
A. The DRS Automation level is set to Fully Automated.
B. The Automation level is set to Automatic.
C. The
D. PM Threshold is set to Aggressive.
【单选题】
An administrator attempts to migrate a suspended virtual machine to a newly deployed vSphere 6.x cluster. The compatibility check fails. What condition could cause this behavior?___
A. The new vSphere 6.x cluster is running Intel CPUs instead of AMD CPUs.
B. A suspended virtual machine cannot be migrated.
C. The hardware virtualization feature of the CPU is not enabled on the new hosts.
D. A vSphere Distributed Switch is required to migrate a suspended virtual machine.
【单选题】
A vSphere administrator has been using vSphere in evaluation mode and now wants to deploy an environment that provides the same features. Which edition of vSphere provides similar functionality to evaluation mode? ___
A. Enterprise Plus
B. Enterprise
C. Standard
D. Essentials