【单选题】
Which storage feature always requires the use of third-party software on ESXi?___
A. Hardware Acceleration for NAS devices
B. VVOL
C. Hardware Acceleration for Block
D. evices
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相关试题
【单选题】
An ESXi host's VMCA-Signed certificate has expired. How can the certificate be renewed?___
A. In the vSphere Web Client, browse to the host in question. Click the Manage tab and select settings. Select System and click Certificate, then click the Renew button.
B. In the vSphere Web Client, browse to the host in question. Click the Manage tab and select settings. Select System and click Certificate, then click the Refresh CA Certificates button.
C. Run the command /sbin/generate-certificates on the affected host.
D. Disconnect the host from vCenter Server and reconnect it.
【单选题】
Which is the correct order for upgrading vSphere components?___
A. vCenter Server, ESXi hosts, VMware Tools, Virtual Machine hardware
B. VMware Tools, Virtual Machine hardware, ESXi hosts, vCenter Server
C. vCenter Server, Virtual Machine hardware, VMware tools, ESXi hosts
D. ESXi hosts, vCenter Server, Virtual Machine hardware, VMware Tools
【单选题】
Which iSCSI initiator type can be used with any network interface card?___
A. Software iSCSI initiator
B. Software FCoE adapter
C. Hardware Independent iSCSI initiator
D. Hardware Dependent iSCSI initiator
【单选题】
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?___
A. Set a 2GB memory reservation on the VM.
B. Mount the virtual disk from the affected VM on to another virtual machine and free up space from within the OS.
C. Enable vSphere HD admission control on the cluster in which the VM resides.
D. Set a 2GB memory limit on the VM.
【单选题】
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?___
A. vSphere 6.5 does not support manual UNMAP.
B. The manual UNMAP operation has been moved to the vSphere web client.
C. The VASA version is use is incompatible.
D. UNMAP is automated for VMFS6.
【单选题】
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?___
A. Perform a storage rescan on VMFS volumes.
B. Unmount the NFSv3 datastore, and then mount as NFSv4.1 datastore.
C. Nothing. All NFSv3 mounted datastores are upgraded automatically during vSphere upgrades.
D. Perform a scan of new storage devices.
【单选题】
An administrator wants to restore the vCenter Server Appliance 6.5 from backup. Where can this be accomplished?___
A. from the ESXi Host Client
B. from the VMware vSphere Appliance Management Interface
C. from within the VMware vSphere Web Client
D. from the vCenter Server Appliance Installer
【单选题】
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.
C. VM-K2 will be unable to power on because only 2GHz are reserved for RP-KID.
D. VM-K2 will receive resource priority and will be able to power on this scenario.
【单选题】
Which is the block size on the VMFS6 datastore?___
A. All small and large file blocks are 8MB.
B. All small and large file blocks are 1MB.
C. Small file blocks are 512KB. large file blocks are 64MB.
D. Small file blocks are 1MB, large file blocks are 512MB.
【单选题】
When installing vCenter Converter Standalone, why must an administrator perform a client-server installation instead of a local installation?___
A. to manage conversion tasks remotely
B. to convert virtual machines as well as physical machines
C. to allow installation of the Converter agent on remote source machines
D. to hot clone physical or virtual machines
【单选题】
Which is required by vCenter Converter Standalone to convert a physical Red Hat Enterprise Linux 7 machine to a virtual machine?___
A. The Linux machine must be powered off.
B. The Linux machine must have the SSH daemon started.
C. The Linux machine must use a static IP address.
D. The Linux machine must have a fully-qualified domain name.
【单选题】
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
B. /var/log/vpxa.log
C. /var/log/hostd.log
D. /var/log/auth.log
【单选题】
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.
【单选题】
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
C. 15 milliseconds
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.
【单选题】
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.
【单选题】
Which Host Profile Subprofile configuration is used to configure firewall settings for ESXi hosts?___
A. Advanced Configuration Settings
B. General System Settings
C. Security
D. Networking
【单选题】
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
C. NSX Virtual Wire
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
【单选题】
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
【单选题】
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
B. Microsoft SQL Server Standard 2012R2
C. PostgreSQL
D. Oracle DB 11g
【单选题】
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.
【单选题】
An administrator sets the Failover Capacity for both CPU and Memory at 25%. Based on the Exhibit below, how much of the cluster’s total CPU resources are still available to power on additional virtual machines?___
A. 45%
B. 25%
C. 70%
D. 60%
【单选题】
Which statement applies to the vSphere Replication appliance?___
A. Only one vSphere Replication appliance can be deployed per vCenter Server instance.
B. VMware Tools in the vSphere Replication appliance can be upgraded.
C. A single vSphere Replication appliance can manage a maximum of 4000 replications.
D. vSphere Replication is available only with the vSphere
E. ssentials Plus license.
【单选题】
Which esxcli namespace can a vSphere Administrator use to adjust the queue depth?___
A. esxcli system module parameters
B. esxcli storage core device
C. esxcli system module set
D. esxcli storage core adapter
【单选题】
Which statement regarding datastore clusters meets VMware’s recommended best practices?___
A. Clusters should contain only datastores presented from the same storage array.
B. Clusters should contain only datastores with equal hardware acceleration capability.
C. Clusters should contain only datastores with the same capacity.
D. Clusters should contain only datastores using the same connection method (iSCSI, FC, etc.).
【单选题】
What VM Monitoring setting would ensure that the maximum reset window for a virtual machine is 24 hours?___
A. Medium
B. Low
C. High
D. Normal
【单选题】
What is the default space threshold for vSphere Storage DRS?___
A. 80%
B. 70%
C. 90%
D. 95%
【单选题】
Which is the correct sequence to upgrade a vSphere infrastructure?___
A. vCenter Server>ESXi host> VMware Tools>VM compatibility
B. ESXi host>vCenter Server> VMware Tools>VM compatibility
C. vCenter host> ESXi host> VM compatibility> VMware Tools
D. ESXi host>vCenter Server> VM compatibility>VMware Tools
【单选题】
An administrator has a large boot from SAN cluster and wants to ensure consistent configuration by using host profiles. What special considerations are required for boot from SAN hosts?___
A. Change the “Device is shared clusterwide” setting to “false” in the host profile.
B. Verify that the boot LUN is correctly identified as the boot device in the host profile.
C. The boot from SAN device must report as a local device.
D. Host profiles are incompatible with boot from SAN hosts.
【单选题】
When using VMware Converter to import a Windows server and improve the consistency of the destination virtual machine, which optional step can be performed immediately prior to powering down the source server?___
A. Perform a final synchronization task.
B. Remove the server from the network.
C. Uninstall production applications.
D. Remove the server from the Active Directory domain.
【单选题】
Restoration of the vCenter Server Appliance is accomplished using which interface?___
A. vSphere Web Client
B. vSphere Client
C. vCenter Server Appliance Management Interface
D. vCenter Server Appliance GUI Installer
【单选题】
When attempting to migrate a virtual machine to another host in the same cluster, the error message, “Select a valid compute resource” returns. What could cause this error?___
A. Both hosts run different versions of ESXi.
B. Both hosts are not sharing the same datastore.
C. VMware Tools is not installed.
D. Virtual machine has an ISO attached.
【单选题】
When will vSphere Data Protection delete the expired backup image of a Platform Service Controller?___
A. Immediately after the retention period has expired.
B. After the expired backup image is restored.
C. During the next backup window following expiry.
D. During the next maintenance window following expiry.
【单选题】
Group A has permission to download files in Content Library. Group B does not have permission to download files in Content Library. If a user is a member of both groups, what will be the result?___
A. The user cannot download file from Content Library.
B. The user can download file from Content Library.
C. The user cannot access Content Library.
D. The user can access Content Library.
【单选题】
An administrator is trying to set up Host Partial Failure Response, but the Automated option is grayed out. What can the administrator change to enable the Automated option?___
A. Change the vSphere DRS Automation level to Partially Automated.
B. Change the vSphere DRS Automation level to Fully Automated.
C. Enable vSphere HA Host Monitoring.
D. Change the vSphere DPM Automation level to Automatic.
【单选题】
When you attempt to open a virtual machine console from the vSphere Web Client, the console does not connect. The following error message appears:<HTTP ERROR 404> <Problem accessin/.Reason: Not Found>. Why did not connect?___
A. Port 443 is in use.
B. Port 9443 is in use.
C. Port 8443 is in use.
D. Port 22443 is in use.
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【单选题】
绝缘鞋和绝缘手套耐压等级 KV。 ___
A. 15
B. 20
C. 35
D. 70
【单选题】
未经通风和检测合格,任何人员不得进入有限空间作业,检测的时间不得早于作业开始前 分钟。 ___
A. 15
B. 30
C. 45
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【单选题】
有限空间作业过程中应当采取通风措施,保持空气流通,注意检查通风设备有无停止运转,有限空间内氧含量浓度不超出 范围,易燃易爆有毒气体浓度不大于25%LEL,超过限值必须立即停止有限空间作业。 ___
A. 11.5-15.5%
B. 20.5-24.5%
C. 24.5-29.5%
D. 29.5-33.5%
【单选题】
有限空间,是指 ,与外界相对隔离,出入口较为狭窄,作业人员不能长时间在内工作,自然通风不良,易造成有毒有害,易燃易爆物质积聚或者氧含量不足的空间。 ___
A. 部分封闭
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【单选题】
凡进入有限空间进行施工,检修,清理作业的,必须经 审批。 ___
A. 应急处置人
B. 作业防护人
C. 作业负责人
【单选题】
有限空间照明电压应小于等于 V。 ___
A. 12
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【单选题】
在罐体内作业照明电压应小于等于 V,且绝缘良好。 ___
A. 12
B. 24
C. 48
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【单选题】
遇有能见度不足 m的大雾,暴风雨(雪),雷电密集,扬沙等恶劣天气时,禁止上道作业。 ___
A. 150
B. 200
C. 250
D. 300
【单选题】
接地防护必须采用接触网与地(钢轨) 连接的方式。 ___
A. 开路
B. 间接短路
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【单选题】
氧气瓶,乙炔瓶禁止靠近火源或在阳光下曝晒,使用时安全距离不少于 m;二者严禁混放,且间距不得少于5m。 ___
A. 10
B. 15
C. 20
【单选题】
露天工作场所遇有 以上大风时禁止高空作业。 ___
A. 四级
B. 五级
C. 六级
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携带危险品上车。 ___
A. 可以
B. 不可以
C. 视情况而定
【单选题】
在执行职务时,必须坚守岗位,穿着规定的服装,佩戴易于识别的证章或携带相应的证件,讲 。 ___
A. 英语
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C. 普通话
【单选题】
从停留车辆的端部搬运材料、工具横越时,留有的安全距离不少于( )米。 ___
A. 3
B. 4
C. 5
D. 6
【单选题】
氧气瓶与乙炔瓶距明火应在 ( )米以上。 ___
A. 3
B. 5
C. 7
D. 10
【单选题】
凡超过2米高的各种脚手架、走台、扶梯等,应设有牢固的防护栏杆,其高度不低于 ( ) 米。 ___
A. 0.5
B. 1
C. 1.2
D. 1.5
【单选题】
移动照明灯应装有防护罩, 电压不得超过( )V。 ___
A. 24
B. 36
C. 50
D. 110
【单选题】
易燃、易爆的作业场所、危险品库等处的照明灯,需装( )装置。 ___
A. 防护罩
B. 保护接地
C. 防爆
D. 短路开关
【单选题】
一切电动机械、工具,其电压在( )伏以上的,都要采取保护性接地或接零措施。 ___
A. 36
B. 50
C. 110
D. 110
【单选题】
使用手提式风钻、电钻作业时,钻孔高度不得超过工作者( )。 ___
A. 头部
B. 肩部
C. 腹部
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【单选题】
检修车辆时,使用脱轨器,前后两端防护距离不得少于 ( )米。 ___
A. 5
B. 10
C. 15
D. 20
【单选题】
电气化区段携带的任何物件与接触网设备的带电部分应保持 ( )米以上。 ___
A. 0.5
B. 1
C. 1.5
D. 2
【单选题】
从停留车辆的端部横过线路时;徒手不少于3米,搬运材料、工具时不少于( )米。 ___
A. 3
B. 4
C. 5
D. 6
【单选题】
严禁扒乘机车 ( ),以车代步。 ___
A. 汽车
B. 拖拉机
C. 摩托车
D. 车辆
【单选题】
铁路职工违反规章制度,致使发生铁路运营安全事故,造成严重后果的,处 ( )年以下有期徒刑或者拘役;造成特别严重后果的,处三年以上七年以下有期徒刑。 ___
A. 3
B. 4
C. 5
D. 6
【单选题】
接触网导线折断、下垂搭在车辆上或其他物品与接触网接触时,任何人员不得进行处理,应保持 ( )米以上距离。 ___
A. 4
B. 6
C. 8
D. 10
【单选题】
轨边作业时,工具、材料、配件的堆放,必须与电气化有关设备隔开 ( )米以上的距离。 ___
A. 0.5
B. 1
C. 1.5
D. 2
【单选题】
三级(段、车间、班组)安全教育的时间合计不得少于 ( )课时。 ___
A. 20
B. 32
C. 40
D. 48
【单选题】
一切电动机械、工具,其电压在 ( )伏以上的,都要采取保护性接地或接零措施。 ___
A. 36
B. 50
C. 110
D. 220
【单选题】
使用手提式风钻、电钻作业时,钻孔高度不得超过工作者 ( )。 ___
A. 头部
B. 肩部
C. 腹部
D. 臀部
【单选题】
移动照明灯应装有防护罩,电压不得超过 ( ) V。 ___
A. 24
B. 36
C. 50
D. 110
【单选题】
用水浇灭距离接触网 ( )米以外的燃着物时,接触网可以不停电,但水流向接触网带电部分应保持2米的安全距离。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
氧气瓶与乙炔瓶之间应留有 ( )米以上的安全距离。 ___
A. 1
B. 3
C. 5
D. 10
【单选题】
机械搬运车在段内行驶时,其最高速度不应超过 ( )公里/小时。 ___
A. 1
B. 5
C. 8
D. 10
【单选题】
接触网额定电压是 ( ) 。 ___
A. 29KV
B. 27.5KV
C. 25KV
D. 19KV
【单选题】
高压是指正确地电压在( )。 ___
A. 220V以上
B. 250V以上
C. 380V以上
D. 19KV以上
【单选题】
低压是指正确地电压在 ( )。 ___
A. 36V及以下
B. 220V及以下
C. 250V及以下
D. 380V及以下
【单选题】
接触网断线时,在未接地线前,任何人不得进入 ( )范围内。 ___
A. 2米
B. 4米
C. 8米
D. 10米
【单选题】
设备在安装,工具、材料、配件的堆放,必须与电气化有关设备隔开 ( )米以上距离。 ___
A. 0.5
B. 1
C. 2
D. 3
【单选题】
通过人体安全电流是 ( ) 。 ___
A. 50mA
B. 60mA
C. 80mA
D. 1A