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【填空题】
161.要求再度显示信号昼问的显示方式为拢起的旗,右臂向右方___ 摇动。
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【填空题】
162联系用手信号显示股道号码时,星间右臂向上直伸,左臂向左平伸,表示股道开通___道。
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163联系用手信号显示十、五、三车距离信号中的“三车”1433m)信号时,昼问的显示方式为展开的绿色信号旗单臂平伸下压___次。
【填空题】
164.联系用手信号显示十、五、三车距离信号时,昼间用展开的绿色信号旗单臂平伸,在距离停留车五车时连续下压两次,是表示距停留车约(
【填空题】
165.联系用手信号的连结信号:夜问一红、绿色灯光(无绿色灯光的人员,用白色灯光(  )。
【填空题】
166.在显示手信号时,儿昼问持有手信号旗的人员,左手应持___旗。
【填空题】
167.在显示手信号时,凡昼问持有手信号旗的人员,应将信号旗___。
【填空题】
168.降弓手信号夜间的显示为白色灯光___重复摇动。
【填空题】
169.脱轨表示器显示带白边的绿色圆牌及月白色灯光一表示线路在___状态。
【填空题】
170.警冲标设在两会合线路线问距离为___的中间J454
【填空题】
43.线路标志,按___ 方向设在线路左侧。J454
【填空题】
144.机车综合无线通信设备通信模式转换提示标志采用涂有白底色、黑框、写有黑___ 字样的方形板。
【填空题】
145.警冲标设在两会合线路线问距离为___的中问 J454
【填空题】
146.预告标设在进站信号机及线路所通过信号机外方___m、1000m及1100m处,但在设有预告或接近信号机及自动闭塞的区段,均不设预告标。J454
【填空题】
147.在双线区段反向运行时,列车标志显示方式为机车前端一个头灯及中部右侧一个() 灯光。 
【填空题】
148.当重复鸣示听觉信号时,须问隔___ 以上。 J460 
【填空题】
149.听觉信号,长声为3s,短声为1s,音响问隔为___ J460
【填空题】
150.发现线路有危及行车安全的不良处所时,应鸣示()信号。
【填空题】
151.在接近鸣笛标、道口、桥梁、隧道、行人,施工地点或天天气不良时,应鸣示___信号。
【填空题】
153.进人停车线停车时,提前确认LKJ显示距离与地面信号位置是否一致,准确掌握___ 、 制动距离和减压量,应做到一次停妥。
【填空题】
154.机车库内整备完毕要道准备出段时,机班必须确认调车信号或股道号码信号、道岔开通信号、道岔表示器(),厉行确认呼唤(应答),鸣笛动车(限鸣区段除外)。
【填空题】
155.机车到达站、段分界点停车,签认出段时分,了解挂车股道和经路,执行___, 按信 号显示出段。
【填空题】
156进人挂车线后,应严格控制机车速度,执行十、五、三车和度停车规定, 确认___、 防护信号及停留车位置。
【填空题】
157.活塞的冷却方式有:喷射冷却、振荡冷却、(二种。
【填空题】
158.辅助机油泵的功能是从油底壳吸人机油,使机油进入机油热交换器进行___ ,然后送到柴油机内。
【填空题】
159.柴油机启动时油水温度不得低于___。
【填空题】
160.更换联合调节器工作油时,往联合调节器内加的工作油或清洗用柴油,均须经___ 过滤并经加油口滤网慢慢加入调节器内。
【填空题】
161.柴油机增压压力不足,将使气缸内空气充量减少,排气温度___,增加燃油消耗。
【填空题】
162.多缸柴油机曲轴的各曲柄按一定规律、一定角度位置的布置方式称为___。
【填空题】
163.活塞在进气冲程上止点前42*20曲轴转角时,该缸进气凸轮使___的升程按技术要求为0.38mm,这一数值叫做0.38尺寸。
【填空题】
164.活塞环与环槽问隙过大时,会造成泵油量增大,使过多的机油窜人___,既浪费机油,又易产生积炭。
【填空题】
165.喷油器喷油压力调整过高,不仅功率损失大,而且会引起本身工.作条件恶化,影响其使用寿命和工作的()。
【填空题】
166.在联合调节器的功调滑阀回油油路中,分别设有增载和碱载针阀,其作用是在回油腔内形成定的背压,以增加功率调节过程中的___。
【填空题】
167.机车喷机油的主要原因一是机油进入气缸,二是___漏油。
【填空题】
168.柴油机运用中,发现膨胀水箱靠水时,可逐缸停止___,并打开示功阀,检查水箱是否涨水。
【填空题】
169运行中差示压力计CS动作造成柴油机停机后,若发现加油口盖处冒燃或柴油机抱缸,这时不要育目打开曲轴箱( )盖或启动柴油机。
【填空题】
170.冷却系统的功用是保证柴油机气缸套、气缸盖、增压器、中冷器及()得到适当的冷却。
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171.柴油机曲轴自由端装有___ 、曲轴齿轮、簧片硅抽碱振器和万向轴。
【填空题】
172.东风4B型机车柴油机最低稳定工作转速()
【填空题】
173.柴油机除装设水温、润滑、曲轴箱防爆、柴油机超速保护环节, 此外还有曲轴箱防爆阀、盘车机构的___和紧急停车按钮。
【填空题】
174油压继电器是柴油机机油压力的一种保护装置,它的精构包括 )和执行机构。
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【单选题】
What is the command for updating an ESXi host?___
A. esxcli software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip
B. esxupdate software update –d”/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”
C. esxcli software update –d “/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”
D. esxupdate software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip
【单选题】
A vSphere Administrator would like to identify which physical NUMA node their virtual machine is currently residing on. What esxtop metric would provide this information?___
A. GST_ND[x]
B. OVD_ND[x]
C. NRMEM
D. NHN
【单选题】
How can a vSphere administrator ensure that two virtual machines never run on the same datastore in a datastore cluster, while permitting the VMs to be load-balanced?___
A. Use an Intra-VM Anti-Affinity Rule.
B. Configure a storage DRS VM override.
C. Disable storage
D. RS for the VMs.
【单选题】
What is the VMware-recommended way to move a physical adapter out of Network I/O Control’s scope?___
A. Set the teaming policy to “Route Based on Physical NIC Load.”
B. Add the vmnic to the Net.NetNiocAllowOverCommit parameter in Advanced System Settings.
C. Add the vmnic to the Net.IOControlPnicOptOut parameter in Advanced System Settings.
D. Move the vmnic to a different vmUplink port on the Distributed Switch.
【单选题】
A VM folder contains VM1 and VM2. Group A has permission to power on virtual machines, defined on the VM folder and its children. Group B has permission to power off virtual machines, defined on the VM folder and its children. If a user is a member of Groups A and B, what will be the user’s effective permission on VM1 and VM2?___
A. Power on
B. Power off.
C. Power on and Power off.
D. Reset.
【单选题】
Group 1 is granted console interaction on a VM folder. User 1 is granted no console interaction on the same VM folder. What will be the outcome if User 1 tries to access the console of a virtual machine?___
A. User 1 will not be able to access the virtual machines in the VM folder.
B. User 1 will not have access to the virtual machine console.
C. User 1 will have access to the virtual machine console.
D. User 1 will have console access only via the vSphere Web Client.
【单选题】
Which statement is true regarding the use of VMFS3 datastores with vSphere 6.5?___
A. VMFS3 datastores can be used but not created.
B. VMFS3 datastores can be neither used nor created.
C. VMFS3 datastores will be present but unmounted.
D. VMFS3 datastores can be created and used.
【单选题】
In the Exhibit, each VM has a 1GHz non-expandable reservation. If all VMs are powered on in sequence, what would be the outcome?___
A. VM4 cannot be powered on.
B. VM5 cannot be powered on.
C. VM6 cannot be powered on.
D. VM3 cannot be powered on.
【单选题】
vSphere 6.5 introduced MAClearning capabilities for VMware’s virtual switches. What three benefits will it provide? (Choose three.)___
A. Reduced memory consumption.
B. Reduced consumption of extra CPU cycles.
C. Increased network throughput.
D. Prevent packet flooding inside the vSwitch.
【单选题】
What is the default pathing policy for most active-active arrays?___
A. Fixed
B. Most Recently Used
C. Dynamic
D. isk Morroring
【单选题】
Which command will show the iSCSI sessions on a ESXi 6.5 host?___
A. esxcli storage iscsi session get
B. esxcli iscsi session get
C. esxcli storage iscsi session
D. esxcli iscsi session list
【单选题】
Which of the following is not a parameter for traffic filtering or marking?___
A. virtual port ID
B. Protocol
C. Traffic Direction
D. DSCP value
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【单选题】
A vSphere administrator wants to enable a virtual machine with Secure Boot, but in VM setting, Secure Boot option was not found under Boot Options. What could be the cause?___
A. The virtual hardware is not compatible.
B. The virtual machine has missing drivers.
C. The virtual machine OS does not support secure boot.
D. VMware Tools is not upgraded.
【单选题】
A virtual machine is connected on a distributed port group where the average bandwidth configured in the traffic shaping policy is 100 Mbps. The VM network adapter is configured with a reservation of 200 Mbps. What is the VM’s effective bandwidth?___
A. 200 Mbps
B. 100 Mbps
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【多选题】
What are two reasons why a datastore in a Storage DRS cluster cannot enter maintenance mode?(Choose two.)___
A. Storage latency is too high to allow Storage DRS initiate Storage vMotion.
B. Storage DRS is configured for a VMFS3 datastore.
C. Storage
D. RS is disabled on the virtual disk.
【多选题】
What two methods are used to configure VMware vSphere Storage I/O Control shares and limits? (Choose two.)___
A. Assign shares and limits to VM virtual disks.
B. Assign shares and limits to datastores.
C. Assign shares and limits to Storage (DRS) clusters.
D. Assign shares and limits using VM storage policies.
【多选题】
ESXi 6.5 introduces VMFS6, which supports both 512e and 512n devices. What three configurations are supported when using these devices? (Choose three.) ___
A. Hosts with both 512e and 512n devices.
B. Storage vMotion between both 512e and 512n devices.
C. Datastore Extents spanned between both 512e and 512n devices.
D. Storage DRS clusters containing only both 512e and 512n devices.
【多选题】
A vSphere Administrator observes that the Primary VM configured with Fault Tolerance is executing slowly. After further investigation, it is determined that the Secondary VM is on an overcommitted ESXi host. What two methods will correct the problem? (Choose two.)___
A. Use Storage vMotion to migrate the Secondary VM to another datastore.
B. Use vMotion to migrate the Secondary VM to a different ESXi host.
C. Configure a CPU limit on the Primary VM which will also apply to the Secondary VM.
D. Turn off and turn on FT in order to recreate the Secondary VM on a different datastore.
【多选题】
Which two features require the use of Host Profiles? (Choose two.)___
A. Host Customizations
B. shared storage
C. Auto
D. eploy
【多选题】
What three processes on the vCenter Server Appliance (VCSA) does“vmware-watchdog monitor? (Choose three.) ___
A. vmware-eam
B. vmcad
C. vmware-vpostgres
D. vpxd
E. vsan-health
【多选题】
What three processes on the vCenter Server Appliance (VCSA) does“vmware-watchdog monitor? (Choose three.) ___
A. vmware-eam
B. vmcad
C. vmware-vpostgres
D. vpxd
E. vsan-health
【多选题】
Which two statements correctly describe VM-Host affinity rules? (Choose two.) ___
A. When there is more than one VM-Host affinity rule in a vSphere DRS cluster, the rules are applied equally.
B. After creating a VM-Host affinity rule, its ability to function in relation to other rules is predetermined.
C. When there is more than one VM-Host affinity rule in a vSphere
D. RS cluster, the rules will be ranked.
【多选题】
An administrator wants to enable proactive HA by moving virtual machines automatically if a hardware alert is triggered. What are the three required settings? (Choose three.)___
A. Set vSphere DRS Automation to Partially Automated.
B. Turn on Proactive HA.
C. Set the Proactive HA Automation Level to Manual.
D. Set the Proactive HA Automation Level to Automated.
E. Turn on vSphere HA and vSphere DRS.
【多选题】
If vCenter Server 5.5 installation has one or more services deployed remotely, which three services are relocated to vCenter Server 6.5 on upgrade? (Choose three.)___
A. vCenter Inventory Services
B. vSphere Authentication Proxy
C. vSphere Web Client
D. vSphere
E. SXi Dump Collector
【多选题】
What two debugging levels can a virtual machine be configured to? (Choose two.)___
A. Verbose
B. Debugging
C. Statistics
D. Trivia
【多选题】
What are three benefits of using a few large-capacity LUNs instead of many small-capacity LUNs? (Choose three.) ___
A. Better performance because there is less contention for a single volume.
B. More flexibility for resizing virtual disks.
C. Less wasted storage space.
D. More flexibility to create virtual machines without adding new LUNs.
E. Fewer VMFS datastores to manage.
【多选题】
Which two configurable options are available in Boot Options for a virtual machine? (Choose two.)___
A. Tools Upgrades
B. Encryption
C. Firmware
D. Force BIOS setup
【多选题】
Which three VMware-recommended best practices should an administrator follow before upgrading to vSphere 6.5? (Choose three.)___
A. Disconnect ESXi host from vCenter.
B. VMware Tools are installed in the virtual machine.
C. Ensure that the system hardware complies with ESXi requirements.
D. Back up the host.
E. Check the interoperability of any other software integrated with vSphere.
【多选题】
What are two requirements to enable EVC in vSphere DRS cluster? (Choose two.)___
A. CPUs must be from the same vendor.
B. EVC must use the lowest possible baseline supported by the hardware.
C. CPUs must be in the same family and of the same speed.
D. No VMs may be running in the cluster.
【多选题】
What three conditions could result in VMware Flash Read Cache being unable to claim a disk? (Choose three.)___
A. The disk is not listed in the VMware hardware compatibility guide.
B. The disk is not detected as an SSD.
C. The disk is not detected as local.
D. The disk is in use by VMFs.
【多选题】
Boot from SAN is supported on which three storage technologies? (Choose three.)___
A. VMware vSAN
B. FCoE
C. NFS 4.1
D. iSCSI
E. FC
【多选题】
Which two components are part of storage I/O multipathing on ESXi? (Choose two.)___
A. SATP
B. VASA
C. PSP
D. VAAI
【多选题】
Which two statements are true about Highly Available vSphere Auto Deploy infrastructure? (Choose two.)___
A. It helps prevent data loss.
B. It is a prerequisite for using vSphere Auto Deploy with stateful install.
C. It requires two or more Auto
D. eploy servers.
【多选题】
The virtual machine log rotation size can be changed for all VMs by which two interfaces? (Choose two.)___
A. PowerCLI
B. vSphere Web Client
C. ESXi host client
D. esxcli
【多选题】
Which two configuration options can exclude virtual disks from snapshot operations? (Choose two.)___
A. Use RDM in virtual mode for virtual disk.
B. Use virtual disks in Independent – Persistent mode.
C. Use a virtual disk larger than 2 TB in size.
D. Use RDM in physical mode for virtual disk.
【多选题】
Which two storage configurations on the source server are unsupported with VMware Converter? (Choose two.)___
A. Linux LVM
B. software RAID
C. GPT/MBR hybrid disks
D. Windows basic volumes
E. Windows dynamic volumes
【多选题】
Which two statements about vCenter HA are correct? (Choose two.)___
A. ESXi 5.5 or later is required.
B. vCenter HA network latency between nodes must be less than 50 ms.
C. NFS datastore is supported.
D. It must be deployed on a 3
E. SXi host cluster with DRS enabled.
【多选题】
An attempt to delete NFS datastore from a ESXi host returns the error: Sysinfo error on operation returned the following status:< Busy> Which two statements could explain this failure? (Choose two.)___
A. NFS datastore is a part of Storage DRS Cluster.
B. NFS.VolumeRemountFrequency value is set to 30.
C. Storage I/O Control is enabled on NFS datastore.
D. NFS datastore has running or registered virtual machines.
【多选题】
An administrator finds that the Microsoft Exchange virtual machines are exhibiting network latency. What two in-guest changes can help decrease latency? (Choose two.)___
A. LRO
B. TSO
C. SR-IOV
D. PVRDMA
【多选题】
Which two types of iSCSI adapters require VMkernel networking configuration? (Choose two.)___
A. dependent hardware
B. in-guest
C. software
D. independent hardware
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