相关试题
【单选题】
下列关于职业健康检查的作用说法错误的是___
A. 检索和发现职业危害易感人群
B. 为行政执法提供证据
C. 可杜绝职业危害
【单选题】
在有风的环境中焊接时,下列焊接方法中保护效果最好的是___
【单选题】
安全规程规定___大风时不得登高焊割作业。
【单选题】
在焊接不锈钢时,氧气和氩气混合保护气体中氧气的体积分数宜为___
A. 1%-5%
B. 5%-10%
C. 3%-6%
【单选题】
在气焊气割工艺中,关于切割速度的说法正确的是___
A. 随氧气纯度的增高而降低
B. 随割件厚度的增加而减小
C. 切口后拖量较大时,应增大切割速度
【单选题】
电子束焊设备应装置专用地线,且接地电阻应小于___Ω。
【单选题】
737焊补燃料容器和管道的常用安全措施有两种,称为___
A. 置换焊补、带压置换焊补
B. 置换焊补、带压不置换焊补
C. 大电流焊补、带料焊补
【单选题】
登高焊割严禁将焊接电缆或气焊、气割的橡皮管___
A. 放在身上
B. 缠绕在身上
C. 放在操作点上
【单选题】
LU-150型等离子弧粉末堆焊机的组成部分不包括___
【单选题】
电磁场对人体的伤害作用___逐渐积累。
【单选题】
可燃气体易与空气混合的条件不包括___
A. 容器设备内部
B. 室内通风不良
C. 容器设备外部
【单选题】
下列关于纯钨极的描述不正确的是___
A. 熔点和沸点都很高
B. 易熔化挥发
C. 电子发射力比人钨极和铺钨极差
【单选题】
二氧化碳焊短路过渡焊接所用的焊丝较细,若焊丝伸出过短,则以下说法错误的是___。
A. 喷嘴至工件距离减小
B. 气体保护效果差
C. 暗嘴挡着视线,看不见坡口和熔池状态
【单选题】
高频电流对人体的伤害程度比工频交流电___
【单选题】
下列属于小孔型等离子弧焊特点的是___
A. 一股不需采取其他措施,即可实现个位置焊接
B. 孔隙低
C. 焊接可变参数少,规范区间宽
【单选题】
小孔型焊接保护气体流量一般在___
A. 15-30L/min
B. 5-10L/min
C. 40-80L/min
【单选题】
圆形筒体的对接环缝的埋弧焊要采用调速装置的滚胎，如果要采用双面焊,焊接位置首先是___。
【单选题】
可能引起管道发生燃烧爆炸的行为是___。
A. 氧气管道阀门上有油脂存在
B. 管道过分离热源10米以外
C. 气体在管内流动时,发生与管道的摩擦,静电电压100V时，静电放电
【单选题】
等离子弧焊产生的噪声能量集中在___
A. <2000Hz的范围
B. 2000-8000Hz的范围
C. >10000Hz的范围
【单选题】
焊接未清洗过的油罐、油桶,会造成___事故。
【单选题】
在更换焊条或焊丝时,必须戴手套,并要求手套保持___可靠
【单选题】
乙炔管道着火,立即关闭阀门是属于___灭火方法。
【单选题】
焊接操作现场应该保持必要的通道,人行通道的宽度不得小于___ m
【单选题】
带压置换焊补必须连续保证容器内___的正压。
【单选题】
焊接作业发生火灾逃生时,要尽量贴近地面撤离,主要原因是___
A. 看得清地上有无障碍物
B. 燃烧产生的有毒热烟在离地面近的地方浓度较小,可降低中毒几率
C. 以免碰着别人
【单选题】
LU-150型等离子弧粉末堆焊机可用于堆焊圆形工件的且任为小于___
【单选题】
不属于预防高处坠落事故的措施是___
A. 提高机具要经常维修保养、检查,禁止超载和违章作业
B. 危险地段或坑井边、陡坎处增设警示、警灯、维护栏杆，夜间增加施工照明亮度
C. 电动机械设备按规定接地接零
【单选题】
手工电弧维焊时,焊机空载电压不能太高,一般直流焊机电源的电压≤___V
【单选题】
在气焊气割工艺中,火焰能率的选择依据是___。
A. 焊件的厚度、母材的熔点和导热性及焊缝的空间位置
B. 焊件的厚度和坡口形式
C. 火焰的种类
【单选题】
___和氯、次氯酸盐等化合会发生燃烧和爆炸
【单选题】
下列关于浓硫酸的物理性质错误的是___
A. 强烈的吸水性
B. 具有氧化作用
C. 有色液体
【单选题】
液化石油气的火焰温度比乙炔火焰的温度___
推荐试题
【多选题】
Which three statements are correct regarding booting an ESXi Host from Fibre Channel SAN? (Choose three.)___
A. Direct connect topology is supported.
B. Each host must have its own boot LUN.
C. ESXi hosts do not require local storage.
D. Multipathing to a boot LUN on an active-passive array is supported.
E. Hosts can share one common boot LUN.
【多选题】
Which two tasks should a vSphere administrator perform if the vmkernel log reports VMFS metadata errors? (Choose two.)___
A. contact VMware technical support
B. reformat the datastore
C. check the device with VOMA
D. ignore the messages
【多选题】
Which two statements are true for a vCenterServer user account that is used for vSphere Data Protection (VDP)? (Choose two.)___
A. The user account must be assigned with Administrator role.
B. The password for the user account cannot contain spaces.
C. The user account should be created in the Single Sign-On domain
D. The user account cannot inherit required permissions from a group role.
【多选题】
Which three storage protocols are supported by Virtual Volumes? (Choose three.)___
A. FCIP
B. FCoE
C. iSCSI
D. NFS v3
E. NFS v4
【多选题】
A vSphere administrator observes a CPU spike on one of the web servers (view the Exhibit.) Which two statements can describe the cause of this activity? (Choose two.)___
A. The network packet size is too large.
B. VMware Tools is not installed.
C. Disk latency is present on the datastore.
D. The network packet size is too small.
【多选题】
Which three operations can cause VMFS metadata updates? (Choose three.)___
A. Restarting a VM using the guest OS.
B. Launching a VM console.
C. Migrating a VM with vMotion.
D. Powering a VM on or off.
E. Expanding a VMFS datastore.
【多选题】
*What two services run on all nodes in a vCenter Server HA cluster? (Choose two.)___
A. vmware-vmon
B. vmware-vpostgres
C. vmare-rbd-watchdog
D. vmware-vcha
【多选题】
Which two statements are true regarding Auto Deploy in version 6.5? (Choose two.)___
A. Auto Deploy can be configured and managed via PowerCLI.
B. Auto Deploy can be configured and managed via the vSphere Client.
C. Auto
D. eploy can be configured and managed via the vSphere Web Client.
【多选题】
What three options can improve network performance for a virtual machine? (Choose three.)___
A. MLD
B. TSO
C. NetFlow
D. LRO
E. SR-IOV
【多选题】
Which two storage technologies are supported for MSCS? (Choose two.)___
A. NFS
B. VAAI
C. iSCSI
D. FC
【多选题】
When upgrading a VMware vSAN cluster to version 6.5, which two tasks must be completed to comply with upgrade requirements and VMware-recommended best practices? (Choose two.)___
A. Use RVC to upgrade the hosts.
B. Use the latest available ESXi version.
C. Back up all VMs.
D. Use only the “Full data migration” maintenance mode option.
【多选题】
What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)___
A. Support for 4k native disks
B. Support for 512e disks
C. GPT storage device partitioning
D. Automatic space reclamation
【多选题】
Which two statements describe why a vSphere DRS cluster would report load imbalance? (Choose two.)___
A. The configured migration threshold is too high.
B. The configured migration threshold is too low.
C. DRS is configured for Partially Automated.
D. Enhanced vMotion Compatibility (EVC) is enabled.
【多选题】
A vSphere Administrator must ensure that vCenter Server service is running in a domain user account rather than Local System Account. To accomplish this, the user account should have which two permissions? (Choose two.)___
A. Log on as a service.
B. Act as part of the operating system.
C. Log on as a batch job.
D. Log on locally.
【多选题】
A virtual machine fails to power on after being deployed from a template. What two remediation steps could correct this issue? (Choose two.)___
A. Increase CPU reservation
B. Decrease memory reservation
C. Increase memory reservation
D. Increase datastore capacity
E. Decrease CPU reservation
【多选题】
Which three directories are available under the vcsa-cli-installer folder of the vCenter Server Appliance installation media? (Choose three.)___
A. \mac
B. \ovftool
C. \migration-assistant
D. \win32
E. \lin64
【多选题】
What are three considerations when booting ESXihost from SAN software FCoE? (Choose three.)___
A. The VMware_FCoE_vSwitch that the installer automatically created cannot be changed.
B. Boot LUN cannot be shared with other hosts even on shared storage.
C. Multipathing is not supported at pre-boot.
D. Software FCoE boot configuration cannot be changed from within
E. SXi.
【多选题】
Which two choices are applicable to vSphere Availability? (Choose two.)___
A. Heartbeat Datastores
B. VM Startup/Shutdoown
C. Power Management
D. Admission Control
【多选题】
A user is a member of groups A and B. -VM10 and VM20 are in VM Folder. -Group A is assigned permission “Read-only” on VM Folder. What two configurations will allow the user to edit the settings for only VM10? (Choose two.)___
A. Assign group B permission “virtual machine power user” to VM10.
B. Assign group B permission “virtual machine console user” to VM10.
C. Assign group A permission “virtual machine console user” to VM10.
D. Assign group A permission “virtual machine power user” to VM10.
【多选题】
Which two new vSphere 6.5 features enable an Administrator to locate configuration options when creating or editing host profiles more easily than in previous versions? (Choose two.)___
A. Add the configuration option to favorites.
B. Navigate the option tree.
C. Search for the configuration option.
D. Copy the configuration option from a different profile.
【多选题】
What are the two valid storage controller types for VMs on ESXi 6.5? (Choose two.)___
A. FCoE
B. SATA
C. NVMe
D. iSCSI
【多选题】
Which two options can optimize conversion with VMware Converter? (Choose two.)___
A. Disable real-time antivirus scanners.
B. Remove the source from Active Directory.
C. Remove third-party device drivers.
D. Exclude diagnostic partitions from conversion.
E. Disable Volume Shadow Copy (VSS).
【多选题】
vSphere Availability considers which two factors for virtual machine restarts? (Choose two.)___
A. Host Isolation Response
B. file accessibility
C. NUMA node size
D. resource reservations
【多选题】
Which two virtual NICs support Wake-on-Lan to resume a virtual machine that is in standby mode? (Choose two)___
A. Flexible
B. E1000E
C. E1000
D. vmxnet 3
【多选题】
Which two logs should be examined to troubleshoot a Windows vCenter Server upgrade failure? (Choose two.)___
A. vminst.log
B. vim-um-msi.log
C. firstboot.log
D. pkgmgr.log
【多选题】
Which are two supported storage primitives for VAAI NAS? (Choose two.)___
A. Full File Clone
B. Reserve Space
C. hardware assisted locking
D. block zeroing
【多选题】
Which two parameters must be configured for Windows in-guest disk mirroring? (Choose two.)___
A. scsi#.returnNoConnectDuringAPD = “FALSE”
B. scsi#.terminateVMOnPDL = “TRUE”
C. scsi#.returnBusyOnNoConnectStatus = “FALSE”
D. scsi#.returnNoConnectDuringAPD = “TRUE”
【多选题】
Which two items are required to enable NPIV in a virtual machine? (Choose two.)___
A. use of physical RDMs
B. physical HBA support
C. use of virtual disks
D. hardware version 11 or higher
【多选题】
A vSphere Administrator has VM Component Protection (VMCP) enabled, but the VM was not restarted when one of the VMFS datastores experienced an All Paths Down (APD) failure. What two scenarios would explain why the virtual machine was not restarted? (Choose two.)___
A. VM Monitoring is required in order for VMCP to failover during an APD event.
B. VMware Tools is not installed on the guest operating system for the VM.
C. Insufficient Capacity is available on the failover ESXi hosts.
D. The APD failure was corrected before the VM could be restarted.
【多选题】
What are two requirements in order to restore a Resource Pool Tree from a snapshot? (Choose two.)___
A. vSphere DRS must be turned on.
B. A restore can only be performed on a vSphere DRS cluster within the original vCenter Server.
C. vSphere
D. RS must be turned off.
【多选题】
Which three vSphere features are compatible with vSphere Replication? (Choose three.)___
A. vSphere High Availability
B. vSphere Fault Tolerance
C. vSphere Storage
D. RS
【多选题】
What two VMware Remote Console Options can be defined in the virtual machine settings? (Choose two.)___
A. Boot Delay
B. Maximum number of sessions
C. Guest OS lock
D. Total video memory
【多选题】
VMware Converter can import a powered off virtual machine from which two virtual machine platforms?(Choose two.)___
A. Microsoft Hyper-V
B. Citrix Xen
C. VMware Workstation
D. Linux with KVM
【多选题】
Which two options allow storage space reclamation? (Choose two.)___
A. Use VMFS6 datastores.
B. Use esxcli storage vmfs unmap.
C. Use the SAN console (management tool).
D. Use the vSphere Web Client.
【多选题】
An administrator must reprovision 25 hosts with a new image profile that he has created. Which two methods can the administrator use to change the image profile? (Choose two.)___
A. From the vSphere Web client home page, select the Deploy Rules tab in the Auto Deploy section.
B. Run the Copy-Deploy Rule and specify the Replace Item parameter with Power CLI.
C. From the vSphere Web client home page, select the Assign Rules tab in the Auto
D. eploy section.
【多选题】
What are three parameters for traffic filtering or marking? (Choose three.)___
A. Protocol
B. Traffic Direction
C. DSCP value
D. virtual Port ID
【多选题】
The vSphere administrator must change the path selection policy (PSP) to comply with best practices. Which two interfaces can be used to change the PSP? (Choose two.)___
A. ESXi shell
B. vSphere Client
C. ESXi host client
D. vSphere Web Client
【多选题】
In what two ways can Storage DRS load balance virtual machines? (Choose two.)___
A. anti-affinity rules
B. virtual storage controller
C. guest OS family
D. I/O latency
【多选题】
What two reasons can explain why a host cannot be removed from a vSphere Distributed Switch? (Choose two.)___
A. There are virtual machine network adapters connected to the switch.
B. There are blocked ports on the switch.
C. There are LACP LAGs configured on the switch.
D. There are VMkernel network adapters connected to the switch.
【多选题】
Which three requirements are true for the vCenter Server HA network? (Choose three.)___
A. Network latency between all nodes must be less than 10 milliseconds.
B. IP addresses for all nodes must be static.
C. HA network IP addresses for all nodes can be on different subnets.
D. IP addresses must be on the same network as the management network.
E. A default gateway must be configured.
