【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
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相关试题
【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
【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%
推荐试题
【单选题】
63.工业机器人可通过___和离线计算机编程两种方式控制机器人按照预想的路径进行工作。
A. 示教自动编程
B. 示教手动编程
C. 离线PLC编程
D. 在线PLC编程
【单选题】
64.设累加器AC2中的低四位存有十进制数3，现执行以下指令，则指令的执行结果VW40的内容是___。
A. 0008H；
B. 08H；
C. 03H；
D. 0003H；
【单选题】
65.高速计数器HSC0有___种工作方式。
A. 8种；
B. 1种；
C. 12种；
D. 9种；
【单选题】
66.高速计数器2的控制字节是___ 。
A. SMB37；
B. SMB47；
C. SMB57；
D. SMB137；
【单选题】
67.定义高速计数器指令的操作码是___。
A. HDEF；
B. HSC；
C. HSC0；
D. MODE；
【单选题】
68.以下不属于PLC的中断事件类型的是___ 。
A. 通讯口中断；
B. I/O中断；
C. 时基中断；
D. 编程中断；
【单选题】
69.若波特率为1200，若每个字符有12位二进制数，则每秒钟传送 的字符数为___个。
A. 120；
B. 100；
C. 1000；
D. 1200；
【单选题】
70.重复定位精度是指机器人在做___次以上重复动作时，与初始位置之间的最大偏差。
A. 2000
B. 20000
C. 1000
D. 10000
【单选题】
1. 固体半导体摄像元件 CCD 是一种___。
A. PN 结光电二极管电路
B. PNP 型晶体管集成电路
C. MOS 型晶体管开关集成电路
D. NPN 型晶体管集成电路
【单选题】
2.一幅灰度级均匀分布的图像，其灰度范围在[0，255]，则该图像像素的存储位数为___。
【单选题】
3.图像与灰度直方图间的对应关系是___。
A. 一一对应
B. 多对一
C. 一对多
D. 多对多
【单选题】
4.下列关于区域开关的特征描述中，不正确是___。
A. 矩形度是物体面积与其最小外接矩形面积之比；
B. 边界的开关数具有平移、旋转和比例缩放不变性；
C. 当区域为圆时， 圆形度达到最大值 1；
D. 归一化的中心矩具有平移、旋转、比例绽放不变性。
【单选题】
5.计算机显示器的颜色模型为___。
A. CMYK
B. HIS
C. RGB
D. YIQ
【单选题】
6.大小为 1024×1024，灰度级别为 256 色的图像文件大小为___。
A. 512KB
B. 1MB
C. 1.5MB
D. 2MB
【单选题】
7．下列图像边缘检测算子中抗噪性能最好的是___。
A. 梯度算子
B. Prewitt 算子
C. Roberts 算子
D. Laplacian 算子
【单选题】
8.下列图像平滑算法中既能有效地平滑噪声又可以避免边缘模糊效应的是___。
A. 领域平均法
B. 中值滤波法
C. 低通滤波法
D. 灰度变换法
【单选题】
9.关于数学形态学处理，以下说法正确的是___。
A. 先膨胀后腐蚀的运算称为开运算。
B. 先腐蚀后膨胀的运算称为闭运算。
C. 细化是将一个曲线型物体细化为一条单像素宽的线，以图形化显示出其拓扑性质。
D. 消除连续区域内的小噪声点，可以通过连续多次使用开闭运算。
【单选题】
10.能够检测 45o 斜线的模版是___。
A. -1 -1 -1
B. -1 -1 2
C. -1 2 -1
D. 2 -1 -1
【单选题】
11.使用 200 万像素(1600×1200)的相机拍摄一个 50mm×50mm 大小的工件，能达到的 最高定位精度是多少 mm/pix？___
A. 0.104
B. 0.042
C. 0.025
D. 0.015
【单选题】
12.拍摄一个宽度为 30mm，高度为 100mm 的目标，选用的 CCD 芯片宽度为 3.2mm，高度 为 3.6mm，拍摄距离为 300m m，应该选用多少 mm 的焦距？___
A. 28mm
B. 16mm
C. 12mm
D. 8mm
【单选题】
13.CCD 芯片尺寸为 1/2 英寸时，应选多大尺寸的镜头？___
A. 1 英寸
B. 1/2 英寸
C. 1/3 英寸
D. 1/4 英寸
【单选题】
给一个黄色物体打光，为了尽可能突出特征值应打什么颜色的光？___
【单选题】
15．假设相机视野范围是 400mm×200mm，应该选用多大尺寸的标定板？___
A. 400mm
B. 300mm
C. 200mm
D. 100mm
【单选题】
16．用户坐标标定时，使用 200 万像素的相机，像元尺寸应填多少？___
A. 2.2um
B. 4.4um
C. 4.8um
D. 5.6um
【单选题】
17．用户坐标标定时，标定误差应该控制在多少个像素之内？___
A. 1.5
B. 1.2
C. 1
D. 0.5
【单选题】
18．创建边缘模板时，如何判断模板质量的好坏？___
A. 绿色线条越平行越好
B. 绿色线条越接近目标轮廓越好
C. 绿色线条越多越好
D. 绿色线条越少越好
【单选题】
19.CCD 摄像机按照其使用的 CCD 器件可以分为线阵式和___。
A. 点阵式
B. 面阵式
C. 矩阵式
D. 旋转矩阵式
【单选题】
20.运动目标检测算法分为静态背景下运动检测和动态背景下运动检测，下列属于静态 背景下运动目标检测常用方法的是___。
A. 块匹配法
B. 背景差分法
C. 光流估计法
D. 图像匹配法
【单选题】
21.光源是机器视觉系统中的关键组成部分，下面关于 LED 光源描述正确的是___。
A. 能量集中，散射小
B. 好扩散性好，适合大面积均匀照射
C. 效率高.稳定性
D. 亮度高，响应速度慢
【单选题】
22.图像分辨率的单位是___。
A. DPI
B. CPI
C. PPI
D. MPI
【单选题】
23.C 接口镜头与 CS 接口镜头的主要区别是镜头定位面至相机感光元器件光敏面的距离 不同，C 接口为 17.5mm，CS 接口为___mm，
A. 19.5
B. 15.5
C. 12.5
D. 10.5
【判断题】
在操作工业机器人时，操作员应严格按照工业机器人操作规程进行操作，因为工业机器人本身运动速度快，不可预测性较大，因此 在操作之前一定要确认周围环境是否安全
【判断题】
一般工业机器人示教器上的使能器按钮分为两档，在手动模式下按下第一档，机器人会处于防护装置停止状态，按下第二档后，机 器人才将处于伺服电机开启状态
【判断题】
使能器按钮是工业机器人为保证操作人员人身安全而设置的。当发生危险时，人会本能地将该按钮松开或握紧，则机器人会马上停 下来，保证安全
【判断题】
工业机器人是典型的机电一体化产品，但其使用难度较小，操作者应无需具有机、电、液、气等专业知识
【判断题】
ABB工业机器人在空间中进行运动主要有四种方式，关节运动、线性运动、圆周运动和绝对位置运动
【判断题】
ABB工业机器人的编程软件是Robotguide
【判断题】
分水滤气器属于二次过滤器，具有较强的滤灰能力
【判断题】
气动三联件是由油雾器、气压表、减压阀构成的
【判断题】
电气安装接线图与原理图不同，接线图中同一电器的不同部分须画在一起
