【单选题】
根据易燃液体储运特点和火灾危险性的大小,易燃液体分为甲. 乙. 丙三类。甲类是指___。
A. 闪点<28℃的液体
B. 28℃≤闪点<60℃的液体
C. 闪点≥60℃的液体
D. 闪点≥40℃的液体
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相关试题
【单选题】
根据易燃液体储运特点和火灾危险性的大小,易燃液体分为甲. 乙. 丙三类。乙类是指___。
A. 闪点<28℃的液体
B. 28℃≤闪点<60℃的液体
C. 闪点≥60℃的液体
D. 闪点≥40℃的液体
【单选题】
根据易燃液体储运特点和火灾危险性大小的分类,我国《建筑设计防火规范》将易燃液体分为甲. 乙. 丙三类。丙类是___。
A. 闪点<28℃的液体
B. 28℃≤闪点<60℃的液体
C. 闪点≥60℃的液体
D. 闪点≥40℃的液体
【单选题】
消防员隔热防护服隔热层阻燃性能的要求为:试样放置在温度为180℃±5℃干燥箱内,5min后取出,沿经、纬向尺寸变化率不大于___,试样表面无明显变化。
A. 2.5%
B. 5%
C. 7%
D. 8%
【单选题】
下列关于消防员隔热防护服的维护保养要求,错误的是___。
A. 灭火或训练后,应及时清洗、擦净、晾干
B. 隔热层和外层可以一起清洗
C. 清洗时不能使用硬刷或用强碱,以免影响防水性能
D. 晾干时不能在加热设备上烘烤。若使用中受到灼烧,应检查各部位是否损坏。如无损坏,可继续使用
【单选题】
下列关于消防员隔热防护服的穿着要求,错误的是___。
A. 穿着前,应检查消防员隔热防护服表面和面罩是否有裂痕、炭化等损伤
B. 穿着前,应检查消防员隔热防护服的接缝部位是否有脱线、开缝等破损,衣扣、背带是否牢固齐全。如有破损,应停止使用
C. 穿着时,首先应佩戴好防护头盔、防护手套、防护靴和空气呼吸器。然后穿着消防员隔热防护服,并将隔热头罩、隔热手套、隔热脚盖分别穿戴在防护头盔、防护手套和防护靴的外部,将空气呼吸器储气瓶放在背囊中。
D. 在灭火战斗中,穿着消防员隔热防护服可以进入火焰区或与火焰直接接触
【单选题】
固体、液体和气体物质都有热传导的性能。它们的强弱顺序为____。___
A. 固体物质最强,液体物质次之,气体物质较弱。
B. 气体物质最强,液体物质次之,固体物质较弱
C. 液体物质最强,固体物质次之,气体物质较弱
D. 液体物质最强,气体物质次之,固体物质较弱。
【单选题】
下列关于热辐射的说法,正确的是____。___
A. 热源温度愈高,与受辐射物体之间的距离越大,辐射越大。
B. 热源温度愈高,与受辐射物体之间的距离越小,辐射越大
C. 热源温度愈低,与受辐射物体之间的距离越大,辐射越大。
D. 热源温度愈低,与受辐射物体之间的距离越小,辐射越大。
【单选题】
关于热对流与通风口的关系,下列说法正确的是_____。___
A. 通风口的面积愈大、高度愈低,热对流速度愈快
B. 通风口的面积愈大、高度愈高,热对流速度愈快
C. 通风口的面积愈小、高度愈低,热对流速度愈快
D. 通风口的面积愈小、高度愈高,热对流速度愈快
【单选题】
对人员疏散方法的描述错误的是___
A. 做好防护,低姿撤离
B. 鱼贯地撤离
C. 自身着火,快速奔跑
D. 利用建、构筑物内配备的消防救生器材或选择落水管道和窗户进行逃生
【单选题】
对组织物质疏散的要求说法不正确的是。___
A. 将参加疏散的职工或群众编成组,指定负责人,使整个疏散工作有秩序地进行
B. 受水、火、烟威胁最大的物资最后疏散
C. 尽量利用各类搬运机械进行疏散
D. 怕水的物资应用苫布进行保护
【单选题】
对初期灭火要领说法不正确的是。___
A. 离火灾现场最近的人员,应根据火灾的种类正确有效地利用附近灭火器等设备与器材进行灭火
B. 灭火人员在使用灭火器具的同时,要利用最近的室内消火栓进行初期火灾扑救
C. 灭火时要考虑水枪的有效射程,尽可能靠近火源,压低姿势,向燃烧着的物体喷射
D. 灭火人员在使用灭火器具的同时,要利用安全的室内消火栓进行初期火灾扑救
【单选题】
对初期灭火要领说法不正确的是____ 。___
A. 丶离火灾现场最近的人员,应根据火灾的种类正确有效地利用附近灭火器等设备与器材进行灭火
B. 灭火人员在使用灭火器具的同时,要利用最近的室内消火栓进行初期火灾扑救
C. 灭火时要考虑水枪的有效射程,尽可能靠近火源,压低姿势,向燃烧着的物体喷射
D. 灭火人员在使用灭火器具的同时,要利用安全的室内消火栓进行初期火灾扑救
【单选题】
人员密集场所应制订安全疏散计划。以下说法不正确的是____。___
A. 人员的分布情况,制订在火灾等紧急情况下的安全疏散路线,并绘制平面图,用醒目的箭头标示出出入口和疏散路线
B. 路线要尽量简捷,安全出口的利用率要平均
C. 对工作人员要明确分工,平时要进行训练,以便火灾时按疏散计划组织人流有秩序地进行疏散
D. 发生火灾时,要按照单位领导的要求进行疏散
【单选题】
人员密集场所应保证安全通道畅通无阻。以下说法不正确的是_____。___
A. 在经营时间里,工作人员要坚守岗位,并保证安全走道、楼梯和出口畅通无阻
B. 安全出口不得锁闭,通道不得堆放物资
C. 组织疏散时应进行宣传,稳定情绪,使大家能够积极配合,按指定路线尽快将在场人员疏散出去
D. 发生火灾时,应保证在场领导首先顺利通过安全出口进行疏散
【单选题】
____是我国唯一的、专门的消防法律,是消防工作的基本法。___
A. 宪法
B. 机关、团体、企事业单位消防安全管理规定
C. 国务院关于进一步加强消防工作的意见
D. 消防法
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A vSphere content library administrator is attempting to unpublish the content library, but the option is grayed out as shown in the Exhibit. Which statement identifies the reason for not being able to unpublish? ___
A. The content library is optimized for syncing over HTTP.
B. A synchronization operation is in progress with this content library.
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Assuming a mirrored (RAID-1) object configuration, how many hosts must contribute storage in a non-stretched VMware vSAN cluster to satisfy the “Number of failures to tolerate” policy option?“n” is the desired “Number of failures to tolerate” value for all options.___
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An administrator must change the statistics level for short-term performance monitoring and wants to collect metrics for all counters, excluding minimum and maximum rollup values. What would be the statistics level?___
A. Level 3
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C. Level 2
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【单选题】
In a vSphere environment, two resource pools are created as shown in the Exhibit. Each VM is configured with 1 GB of memory. When the administrator tried to power on VM3, the operation failed. What action in the resource pool settings will allow VM3 to power on successfully?___
A. Deselect Expandable Memory Reservation
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C. Deselect Expandable CPU Reservation
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【单选题】
Which network is used by vSphere HA when VMware vSAN is enabled?___
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【单选题】
Which statement is correct when migrating from a Windows vCenter Server to the vCenter Server Appliance 6.5?___
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B. Migration deployments support DHCP on the source vCenter Server.
C. Migration deployments allow the source vCenter Server to remain powered on afterwards.
D. Migration deployments support custom ports for all services on the source vCenter Server.
【单选题】
How can failback of a recovered virtual machine in vSphere Replication be performed?___
A. No action required, because failback is automatically performed to the source site.
B. Configure a new replication in the reverse direction at the target site.
C. Disable or Stop the virtual machine replication on the source site.
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【单选题】
After upgrading the vSphere infrastructure and VMware Tools to version 6.5, the “Upgrade VM Compatibility” option is grayed out in the vSphere Web Client. (See Exhibit.) What must the administrator do to enable the VM compatibility upgrade?___
A. VMware Tools should be upgraded last.
B. Restart the ESXi server.
C. Uninstall VMware Tools.
D. Power off the virtual machine.
【单选题】
What availability mode does vCenter HA provide?___
A. Active-Passive
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【单选题】
In which scenario will vSphere DRS balance resources when set to Fully Automated?___
A. Hosts with only shared storage
B. Hosts are part of a vSphere HA cluster
C. Power Management is set to Balanced on hosts
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【单选题】
What VMware technology can be used to move physical servers to the vSphere infrastructure?___
A. VMware vMotion
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【单选题】
Upgrading vCenter Server with Microsoft SQL database fails with the following error message: The DB User entered does not have the required permissions needed to install and configure vCenter Server with the selected DB. Please correct the following error(s): %sWhat could cause this error?___
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C. incorrect compatibility mode on the SQL server
D. incorrect permission on SQL Server database
【单选题】
What is a potential downside of having more than four paths per datastore?___
A. limits the storage protocols
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【单选题】
Which feature facilitates the sharing of templates via vCenter Server?___
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【单选题】
A vSphere Administrator is in the process of configuring replication for a virtual machine, but is not able to select the Recovery Point Objective (RPO) value of 5 minutes. Which statement could explain why the RPO value cannot be lower than 15 minutes?___
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B. The virtual machine hardware version is not compatible.
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【单选题】
What advanced parameter defines a custom isolation IP address for a vSphere HA cluster?___
A. das.usedefaultisolationaddress
B. das.isolationshutdowntimeout
C. fdm.isolationpolicydelaysec
D. das.isolationaddress
【单选题】
Which method is supported for backing up the virtual machine that contains vCenter Server?___
A. differential
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C. full image
D. individual disks
【单选题】
A vSphere Administrator must ensure that a user is able to view and manage the system configuration in vSphere Web Client. In the vCenter Single Sign-On domain, which group should the user be a part of?___
A. SystemConfiguration.BashShellAdministrators
B. ComponentManager. Administrators
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【单选题】
What is the minimum number of hosts that must contribute capacity to a non-ROBO single site VMware vSAN cluster?___
A. 1
B. 64
C. 3
D. 2
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Which guest operating system supports PVRDMA?___
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C. Windows (64-Bit)
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【单选题】
What is the correct way to replace the certificate on an existing vCenter Server that is part of a vCenter HA configuration?___
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B. Shut down Passive and Witness nodes and replace the certificate on the Active node.
C. Remove the Passive and Witness nodes, replace the certificate, reconfigure the cluster.
D. Replace the certificate while all nodes are participating in the cluster.
【单选题】
The vSphere Data Protection performance analysis results in the “Conditionally Passed” status. What can cause this condition?___
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C. The read and write tests were successful but the seek test failed.
D. The read and write tests were successful but the seek test skipped.
【单选题】
A vSphere Administrator wants to reserve 0.5 Gbps for virtual machines on each uplink on a disturbed switch that has 10 uplinks. What is the quota that should be reserved for the network resource pool?___
A. 10 Gbps
B. 5 Gbps
C. 100 Gbps
D. 0.5 Gbps
【单选题】
A vSphere administrator manages a cluster which includes critical and non-critical virtual machines. The cluster requires different permissions for contractors and non-contractors. How can the administrator exclude the contractor group from some of the critical VMs?___
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B. Apply permission for both contractors and non-contractors on the cluster level. Remove permission on the critical VMs for contractors.
C. Remove permission for contractors on the cluster level. Apply permission on the critical VMs for noncontractors.
D. Apply permission for both contractors and non-contractors on the VMs. Remove permission on the critical VMs for contractors.
【单选题】
In an ESXi 6.5 cluster only "NFS datastore has running or registered virtual machines" returns. A vSphere HA cluster with four hosts has admission control configured to tolerate one host failure. Which statement is true if a fifth host is added?___
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【单选题】
Which command can be run to troubleshoot connectivity problems with vmkernal network interfaces?___
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【单选题】
What counter should an administrator check to determine if a virtual machine is ballooning?___
A. swapinRate
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【单选题】
By default, how often is the vCenter vpx user password automatically changed?___
A. 15 days
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【单选题】
Which metric in the Exhibit would identify high latency for a virtual machine operating system?___
A. QAVG/cmd
B. KAVG/cmd
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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
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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
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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