【单选题】
Which command can be run to troubleshoot connectivity problems with vmkernal network interfaces?___
A. esxcli network
B. vmkping
C. net-status
D. vicfg-vmknic
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答案
B
解析
暂无解析
相关试题
【单选题】
What counter should an administrator check to determine if a virtual machine is ballooning?___
A. swapinRate
B. vmmemctltarget
C. swapped
D. vmmemctl
【单选题】
By default, how often is the vCenter vpx user password automatically changed?___
A. 15 days
B. 60 days
C. 30 days
D. 45 days
【单选题】
Which metric in the Exhibit would identify high latency for a virtual machine operating system?___
A. QAVG/cmd
B. KAVG/cmd
C. DAVG/cmd
D. GAVG/cmd
【单选题】
What VM Monitoring setting would ensure that the failure interval for a virtual machine is defined as 120 seconds?___
A. High
B. Normal
C. Low
D. Medium
【单选题】
The business managers have asked the IT administrator to ensure configuration compliance in the vSphere infrastructure. The IT administrator wants to use Host Profiles to accomplish this, but is unable to do so. Why is the administrator unable to use Host Profiles?___
A. The infrastructure uses a vSphere Standard license.
B. The infrastructure has servers with various CPU families.
C. The user has only the “Administrator” role.
D. Host Profiles apply only to storage settings.
【单选题】
What is the result of a “Consolidate” action on a virtual machine?___
A. All snapshots on the virtual machines will be deleted.
B. The virtual machine will be reverted to its last snapshot.
C. Redundant delta disks will be combined and deleted.
D. A new snapshot with memory state will be created.
【单选题】
A Telco customer is implementing NFV using vSphere as the virtualization platform. Which feature can help achieve a high packet rate with lower CPU consumption?___
A. Network I/O Control
B. SplitRX
C. ERSPAN
D. LACP
【单选题】
What is the VMware-recommended best practice for Fibre Channel zoning?___
A. soft zoning
B. single-initiator-multiple-target zoning
C. single-initiator zoning
D. single-initiator-single-target zoning
【单选题】
How can a vSphere administrator ensure that a set of virtual machines run on different hosts in a DRS cluster?___
A. Use a VM-Host affinity rule.
B. Add the VMs to a vApp.
C. Use a VM-VM affinity rule.
D. Place the VMs in different folders.
【单选题】
vCenter Server Appliance Instance can be backed up using which Client Interface?___
A. vSphere Client Interface
B. vSphere Web Client Interface
C. VMware Host Client Interface
D. Virtual Appliance Management Interface
【单选题】
What tool can capture network traffic at the uplinks, or vSwitch, or virtual port levels?___
A. tcpdump-uw
B. wireshark
C. pktcap-uw
D. pcap
【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
【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
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【单选题】
(31346)康明斯K系列PT泵的执行器有___颗安装螺栓(或螺母)。
A. 2
B. 3
C. 4
D. 5
【单选题】
(31347)康明斯K系列PT泵的执行器采用的电源为___。
A. DC24V
B. AC24V
C. DC48V
D. AC48V
【单选题】
(31348)将皮带张紧力量规(工具代号:ST-1293)放在皮带上,转动充电发电机调节连接杆的中间段,以调节皮带张紧程度,直至在量规上取得___的读数。
A. 50~60磅
B. 60~80磅
C. 10~40磅
D. 100~110磅
【单选题】
(31349)拧紧充电发电机的调节连接杆在发电机上的螺钉扭矩为___的。
A. 88~102牛•米
B. 40~60牛•米
C. 50~72牛•米
D. 48~62牛•米
【单选题】
(31350)拧紧充电发电机的调节连接杆在水泵支座上的螺钉扭矩为___。
A. 20~30牛•米
B. 54~61牛•米
C. 10~21牛•米
D. 34~51牛•米
【单选题】
(31351)更换柴油机水泵前应___。
A. 关闭水滤清器座上的冷却液截止阀。
B. 拆下水滤清器。
C. 拆除水泵与节温器壳之间的旁通管总成。
D. 以上都是
【单选题】
(31352)更换柴油机水泵前需做的,其中正确的是___。
A. 拆除水泵与节温器壳之间的旁通管总成。
B. 拆除机油滤清器。
C. 拆卸空滤器
D. 拆下燃油滤清器
【单选题】
(31353)取下柴油机水泵时,应注意___。
A. 应使泵体与柴油机保持平行
B. 一直平行向后退出
C. 以便让开驱动轴与螺柱。
D. 以上都对
【单选题】
(31354)废气涡轮增压器安装座锁紧螺母扭矩为___ 。
A. 30~38牛•米
B. 10~18牛•米
C. 20~28牛•米
D. 60~88牛•米
【单选题】
(31355)将装好衬垫的空气跨接管接头套在空气跨接管上,拧紧螺钉到___。
A. 31~37牛•米
B. 21~27牛•米
C. 41~47牛•米
D. 51~57牛•米
【单选题】
(31356)更换废气涡轮增压器需要做的___。
A. 装上涡轮增压器回油管。
B. 安装涡轮增压器进油管,用夹箍和管螺帽将之紧固。
C. 以洁净机油润滑O形圈,将空气跨接管放入进气口或涡轮增压器压气机的壳体内。
D. 以上都是
【单选题】
(31357)更换发电机励磁系统AVR等元件需要做的是___。
A. 机组停机后,打开发电机励磁箱盖。
B. 检查励磁箱内各电气连接线,清除箱内积尘。
C. 记录AVR等元件的各连接线线号,依次拆除接线,最后拆除AVR等元件固定座螺钉。安装新换AVR等元件固定座螺钉并紧固,按原接线依次接上AVR等元件各端子的连接线。
D. 以上全对
【单选题】
(31358)更换发电机励磁系统AVR 后的质量标准是___。Ⅰ:AVR各端子接线紧固,连接线号与图纸保持一致。Ⅱ:AVR安装紧固无松动,励磁箱盖安装紧固。Ⅲ:励磁箱内清洁无积尘,杂物。Ⅳ:发电机负载试验工作正常,输出电压能恒定在规定范围内。
A. Ⅰ+Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅲ+Ⅳ
C. Ⅰ+Ⅱ+Ⅳ
D. Ⅱ+Ⅲ+Ⅳ
【单选题】
(31359)下列不属于发电机励磁系统元件的是___。
A. AVR
B. 电抗器
C. 旋转整流器
D. 油温传感器
【单选题】
(31360)更换蓄电池前的步骤有___。
A. 停机,关闭发电车各控制电源开关,断开启动电源箱空气开关。
B. 打开蓄电池箱,松开被换蓄电池桩头的连接线,松开的线须用绝缘胶布包扎好连接头。
C. 小心将被换电池从电池箱中拉出,妥善放置在地上。
D. 按A→B→C的顺序进行
【单选题】
(31361)更换完蓄电池后的要求有___。
A. 清洁蓄电池桩头氧化物,接好蓄电池接线,紧固连接螺母,并涂抹凡士林。
B. 清洁各蓄电池表面卫生,清扫箱内积尘,杂物。
C. 检查其余蓄电池连接线,涂抹凡士林。
D. 以上全是
【单选题】
(31362)蓄电池电解液密度不小于___。
A. 1.03 g/cm3
B. 0.23 g/cm3
C. 1.83 g/cm3
D. 1.23 g/cm3
【单选题】
(31363)拆卸主空气开关(AH-6B型)的内容包括有___。Ⅰ:拧松主空气开关左右侧的固定用蝶形螺钉,取出手把,将主空气开关的固定螺钉松开,抽出手把挂在抽出杆销上。Ⅱ:按手分按钮,搬下止动杠杆将抽出手把往下压,主空气开关外移,当止动杠杆复位时,主空气开关处于试验位置。Ⅲ:主空气开关继续往外抽,重复Ⅱ步骤,止动杠杆复位后处于断开位置。Ⅳ:主空气开关在断开位置,将止动杠杆按下来,捏住拉手向外拉,逐渐使主空气开关与抽出框架的滑道脱离。
A. Ⅰ+Ⅱ+Ⅲ
B. Ⅰ+Ⅲ+Ⅳ
C. Ⅱ+Ⅲ+Ⅳ
D. Ⅰ+Ⅱ+Ⅲ+Ⅳ
【单选题】
(31364)更换新的主空气开关(AH-6B型)内容有___。Ⅰ:将新的主空气开关两侧导轨插入框架滑道。Ⅱ:按手分按钮,搬下止动杠杆,将主空气开关插入,依次推至断开位置、试验位置、连接位置,并使止动杠杆复位。Ⅲ:用主空气开关左右固定螺钉将主空气开关固定在抽出框架上。Ⅳ: 抽出手把。
A. Ⅰ+Ⅱ+Ⅲ+Ⅳ
B. Ⅱ+Ⅲ+Ⅳ
C. Ⅰ+Ⅲ+Ⅳ
D. Ⅰ+Ⅱ+Ⅲ
【单选题】
(31365)下面哪个位置不属于更换主空气开关(AH-6B型)插入框架滑道经过的位置。___
A. 断开位置
B. 试验位置
C. 连接位置
D. 可靠位置
【单选题】
(31366)更换电动输油泵前应___。
A. 关断输油泵电源、油路。
B. 拆卸输油泵外部电路、管路。
C. 拆卸输油泵安装螺栓、分离输油泵与电动机的连接。
D. 以上都需要
【单选题】
(31367)更换输油泵后应___。
A. 将新输油泵与电动机进行连接,紧固输油泵安装螺栓。
B. 安装输油泵外部电路、管路。
C. 开启输油泵电源、油路,对输油泵进行性能试验。
D. 以上都需要
【单选题】
(31368)柴油机输油泵的活塞与泵体,是经过选配和___而达到高精度配合的,故无互换性。
A. 珩磨
B. 圆磨
C. 研磨
D. 光磨
【单选题】
(31369)更换手动输油泵前应___。
A. 关断输油泵油路。
B. 拆卸输油泵外部管路。
C. 拆卸输油泵安装螺栓
D. 以上都需要。
【单选题】
(31370)更换输油泵后应___。
A. 紧固新输油泵安装螺栓。
B. 安装输油泵外部管路。
C. 开启输油泵油路,对输油泵进行性能试验。
D. 以上都需要。
【单选题】
(31371)柴油机输油泵的活塞与泵体,是经过选配和___而达到高精度配合的,故无互换性。
A. 珩磨
B. 圆磨
C. 研磨
D. 光磨
【单选题】
(31372)下面哪个不是1FC5系列发电机AVR中三个内整定电位器?___
A. USOL(电压内整定调整)
B. VR(放大倍数调整)
C. VOLTARJ电压调整电位器
D. TN(动态时间调整)
【单选题】
(31373)下面哪个不是MP-T系列发电机APRl25—5型电压调节器内的三个可调整电位器?___
A. FREQ频率调整电位器
B. USOL(电压内整定调整)
C. STAB稳定性调整电位器
D. VOLTARJ电压调整电位器
【单选题】
(31374)下面哪个不属于MP-T系列发电机的精度调整?___
A. 频率调整
B. 稳定性调整
C. 电压调节(整定)
D. 电流调整
【单选题】
(31375)柴油机喷油泵的供油拉杆由___控制。
A. 调速器
B. 油量限制器
C. 调速杠杆
D. 手动控制器
【单选题】
(31376)发电车负载试验台的操作包括___。
A. 将发电车强电输出线与户外箱对应的插座联接好。
B. 连接好户外箱内信号放大盒与发电车控制表盘上仪表之间的接线。
C. 打开负载间防雨设施使负载在测试过程中能够充分散热,检查负载间有无异物或其它导电物,保证冷却系统能够正常工作。
D. 以上全部要。
【单选题】
(31377)下面哪个不是发电车负载试验过程需要的?___
A. 检查试验台各仪表显示是否与发电车各仪表显示一致。
B. 检查柴油机各部是否存在渗漏、烟色是否正常。
C. 检查发电机绕组、接线、轴承有无异常温升。
D. 检查空调机组制冷情况。
【单选题】
(31378)使用发电车负载试验台的质量标准为___。
A. 负载试验台使用前必须认真检查,保证性能良好,负载状况达到试验要求。
B. 试验期间必须做好安全防护,严禁无关人员操作。
C. 试验期间发现问题必须及时处理后,再进行下一步试验。
D. 以上都对。
【单选题】
(31379)柴油机调速器调速弹簧变软,会导致柴油发动机___。
A. 最高转速下降
B. 最高转速上升
C. 启动困难
D. 怠速下降
【单选题】
(31380)EFC电子调速器上转速降调整旋钮能调整转速降的范围是___。
A. 1%~3%
B. 2%~5%
C. 2%~3%
D. 0~5%
【单选题】
(31381)当要增高柴油机转速时,对机械调速器应___。
A. 降低调速弹簧预紧力
B. 增加调速弹簧刚度
C. 增加调速弹簧直径
D. 增大调速弹簧预紧力
【单选题】
(31382)发电车中48V蓄电池的充电电流一般不超过___。
A. 10A
B. 30A
C. 40A
D. 35A
【单选题】
(31383)下列说法不正确的是?___
A. 充电装置可对24V蓄电池充电
B. 机组自带充电机和充电装置可同时对24V蓄电池充电
C. 机组自带充电机可对24V蓄电池充电
D. 充电装置可对48V蓄电池充电
【单选题】
(31384)发电车上油箱控制在自动位时,当油位至___时,电动输油泵自动泵油。
A. “1/2”
B. “1/4”
C. “1/3”
D. “1”
【单选题】
(31385)发电车上油箱控制在自动位时,当油位至___时,电动输油泵自动停止。
A. “1/4”
B. “3/4”
C. “1”
D. “1/3”