相关试题
【判断题】
在 35/0.4kV的配电系统中，应在变压器的高低压侧分别装设阀型避雷器做防雷保护
【判断题】
10kV 架空线路的线间距离在档距40m及以下时一般为0.6m
【判断题】
在高压线路发生火灾时，应迅速拉开隔离开关，选用不导电的灭火器材灭火
【判断题】
人体触电时，大脑易损期最为敏感，也最容易受到伤害而发生昏迷，而导致血液循环中止死亡
【判断题】
人体触电急救时，如果触电者有呼吸，无心跳则应该实施胸外挤压法急救
【判断题】
10kV 架空线路导线与地面最小距离，在不同的区域可有所不同，在居民区最小是7.5 米，在非居民区最小是 5.5 米
【判断题】
弹簧操作机构可根据实际情况在机构处就近完成分合闸操作，以提高工作效率
【判断题】
感应型过流继电器需配时间继电器和中间继电器才可构成过流保护
【判断题】
在继电保护中常采用中间继电器来增加触点的数量
【判断题】
自动重合闸动作后，需将自动重合闸手动复位，准备下次动作
【判断题】
有两个频率和初相位不同的正弦交流电压u1 和 u2, 若他们的有效值相同，则瞬时值也相同
【判断题】
旋转电机发生火灾时，禁止使用干粉灭火器和干沙直接灭火
【判断题】
人体触电时，通过人体电流的大小和通电时间的长短时电击事故严重程度的基本决定因素，当通电电流与通电时间乘积达到30mA.1s 时即可使人致死
【判断题】
万用表测量电压时是通过改变并联附加电阻的阻值来改变测量不同电压的量程
【判断题】
如果将电流表并联在线路中测量，则电流表有可能会因过载而被烧坏
【判断题】
用数字万用表测量直流电压时，极性接反会损坏数字万用表
【判断题】
对某支路的电气设备合闸时，其倒闸顺序是先合隔离开关，其次是负荷开关，最后是断路器
【判断题】
任何单位和个人不得干预本系统的值班调度员发布或执行调度命令，值班调度员有权拒绝各种干预
【判断题】
消弧线圈对接地电容电流的补偿实际应用时都采用过补偿方式
【判断题】
高峰负荷是指电网或用户在一天时间内所发生的最高负荷值
【判断题】
临时遮拦设置在可能发生人体接近带电体的巡视通道和检修设备的周围
【判断题】
变配电设备应有完善的屏护装置。安装在室外地上的变压器，以及安装在车间或公共场所的变配电设备， 均需安装遮拦作为屏护
【判断题】
操作开关时，由于开关的灭弧能力不够强，触头在断开瞬间有可能发生电弧燃烧引起操作过电压
【判断题】
检查架空线路导线接头有无过热，可通过观察导线有无变色现象
【判断题】
高低压同杆架设，在低压线路工作时，工作人员与最上层高压带电导线的垂直距离不得小于0.7m
【判断题】
雷电时，应禁止屋外高空检修、试验等作业，若是正在做此类作业，除特殊情况外应立即停止作业
【判断题】
静电电压可达到很高，有时可达数万伏，但静电能量较小，一般不会使人遭电击死亡，但其引发的火灾等二次事故则易使人死亡
【判断题】
把电气设备正常情况下不带电的金属部分与电网的保护零线连接，称作保护接零，目的是为了防止间接触电
【判断题】
对于高压电气设备，无论是否有绝缘或双重绝缘，均应采用屏护或其他防止接近的措施
【判断题】
电流通过人体会对人体的内部组织造成破坏，严重时导致昏迷，心室颤动乃至死亡
【判断题】
为了保证防雷措施的有效性，防雷接地装置应定期检查测定，对10kV 以下每 3 年一次， 10kV 以上每 1 年一次
【判断题】
可移动手车式高压开关柜在断路器手车未推到工作位置或拉到试验位置时断路器都不能正常合闸
【判断题】
与断路器串联的隔离开关，必须在断路器分闸状态时才能进行操作
【判断题】
高压开关柜之间送电的顺序是：计量柜- 保护柜 - 电源柜 - 各馈出柜 - 电容补偿柜
【判断题】
在变压器的保护中，过电压保护是位于后备保护
【判断题】
变压器电源侧发生故障时，变压器的电流速断装置应动作
【判断题】
蓄电池是用以储蓄电能的，能把化学能储存起来，使用时把化学能转化为电能释放出来
推荐试题
【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
【单选题】
During the installation of ESXi 6.0, the following error message is reported: Hardware Virtualization is not a feature of the CPU, or is not enabled in the BIOS. Which condition would generate this message? ___
A. LAHF/SAHF is not enabled in the BIOS.
B. NX/XD is not enabled in the BIOS.
C. SSE3 is not enabled in the BIOS.
D. Hyperthreading is not enabled in the BIOS.
【单选题】
An administrator is unable to login to vCenter Server when using the vSphere web client. The administrator successfully accessed vCenter Server using the client earlier the same day. What is the most appropriate first step the administrator should take to resolve this issue? ___
A. Verify the web browser being used has Adobe Flash plugin version 11.5 or later
B. Verify the vCenter Single Sign-On service is running on the vCenter Server
C. Verify the vSphere Web Server service is running on the vCenter Server
D. Verify the administrator has permissions configured in vCenter Server
【单选题】
An administrator has configured an alarm to be notified when a virtual machine meets two conditions: <high virtual CPU> <high active memory consumption> The alarm is malfunctioning and triggering when either condition is met instead of both. What can be done to correct the issue? ___
A. Edit the alarm and select Trigger if ALL of the following conditions are satisfied.
B. Edit the alarm and select Trigger if ANY of the following conditions are satisfied.
C. Create two separate alarms, one for CPU and one for memory.
D. Delete the existing alarm and create a new event based alarm.
【单选题】
What must be enabled to ensure that VM Component Protection (VMCP) works in a High Availability cluster? ___
A. VMware Tools Virtual Machine Communication Interface (VMCI)
B. Fault Tolerance
C. Atomic Test and Set (ATS)
D. All Paths Down (APD) Timeout
【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
