相关试题
【多选题】
通风系统的组成： 空气压力波动控制装置。 ___
A. 通风机
B. 进排风装置
C. 风道
D. 空气净化设备
【多选题】
通风系统的组成：进排风装置、 、空气压力波动控制装置。 ___
A. 通风机
B. 贮液器
C. 风道
D. 空气净化设备
【多选题】
动车组制冷系统主要由压缩机、节流装置、 等部分组成， ___
A. 速度传感器
B. 冷凝器
C. 空气压力波动控制装置
D. 蒸发器
【多选题】
动车组制冷系统主要由节流装置、 等部分组成。 ___
A. 压缩机
B. 冷凝器
C. 速度传感器
D. 蒸发器
【多选题】
动车组制冷系统主要由 、节流装置和蒸发器等部分组成。 ___
A. 压缩机
B. 冷凝器
C. 速度传感器
D. 空气压力波动控制装置
【多选题】
动车组制冷系统主要由 、和蒸发器等部分组成。 ___
A. 压缩机
B. 冷凝器
C. 节流装置
D. 速度传感器
【多选题】
动车组制冷系统主要由 、冷凝器、节流装置等部分组成。 ___
A. 压缩机
B. 空气压力波动控制装置
C. 速度传感器
D. 蒸发器
【多选题】
动车组制冷系统主要由 等部分组成。 ___
A. 压缩机
B. 冷凝器
C. 节流装置
D. 蒸发器
【多选题】
，使动车组车厢保持一定的适宜温度。 ___
A. 降温
B. 补偿加热
C. 净化
D. 冷却
【多选题】
湿空气的状态通常用 等参数来描述。 ___
【多选题】
空气处理过程的焓-湿图上的表示，等温加热过程、 四个过程。 ___
A. 等湿冷却过程
B. 加湿冷却过程
C. 加湿过程
D. 减湿冷却过程
【多选题】
在铁道车辆制冷系统中，常见的制冷方法有： 、空气制冷、半导体制冷等。 ___
A. 蒸气压缩式制冷
B. 冰盐混合物制冷
C. 干冰
D. 液氮制冷
【多选题】
常见氟里昂主要有 等。 ___
A. R12
B. R22
C. R134a
D. R407C
【多选题】
根据补偿方法不同而有 等制冷方法。车辆上目前应用最广的是蒸气压缩式制冷。 ___
A. 蒸气压缩制冷
B. 蒸气喷射制冷
C. 吸入式制冷
D. 空气制冷
【多选题】
是保证车内环境舒适性的基本设备。 ___
【多选题】
CRH380B型动车组空调系统配备有两个车压力波传感器，分别安装在 车。 ___
A. EC01
B. IC03
C. IC06
D. EC08
【多选题】
CRH380B型动车组废排风道位于车辆两侧处， 之间， ___
【多选题】
CRH380B型动车组空调控制系统中可执行下列操作模式：空调工作（标准模式）、应急通风、空调关闭、空调紧急关闭、 。 ___
A. 整备模式
B. 降低模式
C. 清洗模式
D. 隧道模式
【多选题】
CRH380B型动车组空调控制模式中可以通过显示屏上的左侧司机人机界面或乘务员人机界面启用： 。 ___
A. 空调工作
B. 整备模式
C. 应急通风
D. 空调关闭
【多选题】
CRH380B型动车组内部照明系统分为： 。 ___
A. 主要照明
B. 紧急照明
C. 阅读灯
D. 射灯
【多选题】
CRH380B型动车组内部照明系统中阅读灯分布在车内位置有 。 ___
A. VIP车
B. 一等车
C. 观光区
D. VIP包间
【多选题】
通风机组是通风系统的动力装置，主要由 组成。 ___
A. 轴流式通风机
B. 电动机
C. 离心式通风机
D. 横流式通风机
【多选题】
诱导器是诱导通风的送风设备，由 和一次风连接管热交换器等部分构成。 ___
A. 外壳
B. 喷嘴
C. 静压箱
D. 蒸发器
【多选题】
空调客车上使用的电热采暖装置采用的电热元件有几种形式有 、半导体式等。 ___
A. 电热管式
B. 温水预热式
C. 冷凝放热式
D. 电热板式
【多选题】
电热元件主要由 及接线柱等组成。 ___
A. 导热介质
B. 不锈钢绕片
C. 电阻丝
D. 不锈钢管
【多选题】
四通换向阀有四个根接管和三根毛细管，阀体内装有 。 ___
【多选题】
动车组空调运行控制系统一般分为传感器、变送器、 等部分组成。 ___
A. 贮液器
B. 控制器
C. 执行器
D. 控制对象
【多选题】
动车组空调运行控制系统一般分为变送器、 、执行器、控制对象等部分组成。 ___
A. 传感器
B. 控制器
C. 贮液器
D. 差压阀
【多选题】
动车组空调运行控制系统一般分为变送器、控制器、 、控制对象等部分组成。 ___
A. 传感器
B. 贮液器
C. 执行器
D. 差压阀
【多选题】
动车组空调运行控制系统一般分为传感器、变送器、 、控制对象等部分组成。 ___
A. 贮液器
B. 控制器
C. 执行器
D. 差压阀
【多选题】
动车组空调运行控制系统一般分为传感器、变送器、 、执行器等部分组成。 ___
A. 贮液器
B. 控制器
C. 差压阀
D. 控制对象
【多选题】
动车组空调运行控制系统一般分为传感器、 、控制器、执行器等部分组成。 ___
A. 变送器
B. 贮液器
C. 差压阀
D. 控制对象
【多选题】
动车组空调运行控制系统一般分为传感器、控制器、 、控制对象等部分组成。 ___
A. 变送器
B. 贮液器
C. 执行器
D. 差压阀
【多选题】
动车组空调运行控制系统一般分为传感器、 等部分组成。 ___
A. 变送器
B. 控制器
C. 执行器
D. 控制对象
【多选题】
动车组空调系统的运行控制原则：冷凝风机与压缩机联锁； ；控制通风机低速与高速运行的电路互锁；避免压缩机频繁起动及多台压缩机同时起动，每台压缩机在冷凝风机起动后延时起动，多台压缩机间隔顺序起动；为使同一机组中的两台压缩机运行时间尽量一致，在控制电路中两台压缩机在单机工作时轮流工作。 ___
A. 通风与制冷及制暖联锁
B. 制冷与制暖互锁
C. 通风与制暖互锁
D. 制冷与制暖联锁
【多选题】
动车组空调系统的运行控制原则： ；控制通风机低速与高速运行的电路互锁；避免压缩机频繁起动及多台压缩机同时起动，每台压缩机在冷凝风机起动后延时起动，多台压缩机间隔顺序起动；为使同一机组中的两台压缩机运行时间尽量一致，在控制电路中两台压缩机在单机工作时轮流工作。 ___
A. 通风与制冷及制暖联锁
B. 制冷与制暖互锁
C. 冷凝风机与压缩机联锁
D. 制冷与制暖联锁
【多选题】
动车组空调系统的运行控制原则：通风与制冷及制暖联锁； ；避免压缩机频繁起动及多台压缩机同时起动，每台压缩机在冷凝风机起动后延时起动，多台压缩机间隔顺序起动；为使同一机组中的两台压缩机运行时间尽量一致，在控制电路中两台压缩机在单机工作时轮流工作。 ___
A. 通风与制冷及制暖互锁
B. 冷凝风机与压缩机联锁
C. 制冷与制暖互锁
D. 控制通风机低速与高速运行的电路互锁
【判断题】
空调制冷时，制冷剂进入蒸发器后，在特定的压力(蒸发压力)和温度(蒸发温度)下吸收被冷却物体的热量而沸腾汽化(蒸发)。
【判断题】
制冷剂进入蒸发器后，在特定的湿度和温度(蒸发温度)下吸收被冷却物体的热量而沸腾汽化(蒸发)。
【判断题】
制冷剂进入蒸发器后，在特定的压力(蒸发压力)和湿度下吸收被冷却物体的热量而沸腾汽化(蒸发)。
推荐试题
【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?___
【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
【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
