【判断题】
信号机按类型分为色灯信号机、臂板信号机和机车信号机
A. 对
B. 错
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相关试题
【判断题】
信号及通信设备,应装有防止强电及雷电危害的保安设备,电子设备应符合电磁兼容有关规定
A. 对
B. 错
【判断题】
进站色灯信号机两个黄色灯光表示准许列车按限速要求越过该信号机,经道岔侧向位置进入站内通过
A. 对
B. 错
【判断题】
在进站端、出站端及区间适当地点设置点式应答器,必要时设置特定用途的应答器
A. 对
B. 错
【判断题】
计算机联锁在现场模拟联锁试验之前,电务段应进行全面的联锁仿真试验,并认真做好试验记录
A. 对
B. 错
【判断题】
计算机联锁设备试验应进行同步故障倒机及人工切换试验
A. 对
B. 错
【判断题】
架空线线路下面,地下光缆和电缆线路上面,禁止植树
A. 对
B. 错
【判断题】
直接涉及行车安全的TDCS、CTC等系统,必须自成体系,单独成网,独立运行,同时可以与其他系统直接联网
A. 对
B. 错
【判断题】
TDCS、CTC应实行系统冗余,局部故障有时可以影响整个系统
A. 对
B. 错
【判断题】
对设有加锁加封的信号设备,应加锁加封,必要时可装设计数器,电务人员应负责其完整
A. 对
B. 错
【判断题】
加封设备启封使用后,应及时通知车务部门加封
A. 对
B. 错
【判断题】
采用计算机联锁设备实现加锁加封功能时,应使用密码操作
A. 对
B. 错
【判断题】
在确定设置信号机地点时,除满足信号显示距离的要求外,还应考虑到该信号机不致被误认为邻线的信号机
A. 对
B. 错
【判断题】
主体信号机未开放时,进路信号机不能开放
A. 对
B. 错
【判断题】
当列控车载设备接收到轨道电路允许行车信息,而缺少应答器提供的线路数据或限速数据时,最高限速值为45km/h
A. 对
B. 错
【判断题】
自动闭塞区段的车站,办理发车前不应向接车站预告
A. 对
B. 错
【判断题】
道岔编号,从列车到达方向起顺序编号,上行为双号,下行为单号
A. 对
B. 错
【判断题】
出站信号机有两个及其以上的运行方向,而信号显示不能分别表示进路方向时,应在信号机上装设进路表示器
A. 对
B. 错
【判断题】
双线自动闭塞区间反方向进站信号机前方应设置预告标
A. 对
B. 错
【判断题】
信号机应设在列车运行方向的左侧或其所属线路的中心线上空
A. 对
B. 错
【判断题】
进站色灯信号机两个黄色灯光表示准许列车按限速要求越过该信号机,经道岔侧向位置进入站内通过
A. 对
B. 错
【判断题】
铁路运输企业应当按照国家有关规定,建立、健全本企业的应急预案,明确应急指挥、救援等事项
A. 对
B. 错
【判断题】
四显示自动闭塞区段的进站信号机前方第一、第二架通过信号机的机柱上,应分别涂三条、一条黑斜线,以与其他通过信号机相区别
A. 对
B. 错
【单选题】
关于安全生产工作的机制,表述错的是___:
A. 政府监管
B. 生产经营单位参与
C. 行业自律
D. 社会监督
【单选题】
公历的12月21日前后是___ 这一天是北半球冬季的开始。注意防寒 、保暖。
A. 大雪
B. 冬至
C. 小寒
【单选题】
依法为从业人员缴纳工伤保险和给予民事赔偿,是___的法定义务
A. 公司股东
B. 工会
C. 安全管理部门和从业人员
D. 生产经营单位
【单选题】
《安全生产法》共计有7章114条,其中条款最多的是___。
A. 第二章:生产经营单位的安全生产保障
B. 第三章:从业人员的权利和义务
C. 第四章:安全生产的监督管理
D. 第六章:法律责任
【单选题】
段防洪应急指导小组___指导基层单位开展一次应急演练,要熟知应急救援程序和工作任务。
A. 每年
B. 每半年
C. 每季度
【单选题】
下列选项中,___是从业人员必须履行的法定义务,这是保障从业人员人身安全和生产经营单位安全生产的需要。
A. 遵章守规、服从管理
B. 接受安全培训,掌握安全生产技能
C. 对佩戴和使用劳动防护用品
D. 发现事故隐患或者其他不安全因素及时报告
【单选题】
重大或特大级突发火灾事故发生后,应启动___应急响应。
A. 一级响应
B. 二级响应
C. 三级响应
【单选题】
触电事故中, 是导致人身伤亡的主要原因。___
A. 人体受到电流伤害
B. 烧伤
C. 电休克
【单选题】
《安全生产法》对___的安全生产工作任务、职责、措施、处罚等方面做出了明确的规定。
A. 各级行政机关及其安全生产监督管理部门
B. 各级行政机关及其生产经营单位主要负责人
C. 各级人民政府及其安全生产监督管理部门
D. 各级人民政府及其生产经营单位主要负责人
【单选题】
两个以上生产经营单位在同一作业区域进行生产经营活动,可能危及对方安全时,对的处理方式是___:
A. 互相提醒注意安全后继续进行各自的生产经营活动
B. 由各自安全主管部门确定生产经营活动方案
C. 各方自行采取安全措施
D. 签订安全生产管理协议,明确各自安全职责和应当采取的安全措施,并指定专职安全管理人员进行安全检查和协调
【单选题】
电冰箱的放置,其背部要与墙有___左右的距离,以保证散热。
A. 5厘米
B. 10厘米
C. 15厘米
【单选题】
无适当保存条件的散装食品保质期为烧熟后___,其再加热中心温度必须达到
A. 3小时,60℃
B. 2小时,70℃
C. 4小时,60℃
D. 1小时,100℃
【单选题】
任何单位、个人都有维护消防安全、保护___、预防火灾、报告火警的义务。
A. 消防环境
B. 公共设施
C. 消防设施
D. 工作场所
【单选题】
作为生产经营单位,其主要负责人不包括___:
A. 法人代表
B. 分管负责人
C. 安全管理机构负责人
D. 外设机构负责人
【单选题】
《安全生产法》确立了___的安全生产监督管理体制。
A. 国家监察与地方监管相结合
B. 国家监督与行业管理相结合
C. 综合监管与专项监管相结合
D. 行业管理与社会监督相结合
【单选题】
《安全生产法》规定,生产经营单位因违法造成重大生产安全事故,从业人员依法获得工伤保险后,___要求生产经营单位给予赔偿的权利。
A. 自动丧失
B. 不得享有
C. 应当放弃
D. 依然享有
【单选题】
最高气温达到___以上,应停止室外露天作业
A. 38℃
B. 39℃
C. 40℃
【单选题】
较大或重大级突发火灾事故发生后,应启动___应急响应。
A. 一级响应
B. 二级响应
C. 三级响应
推荐试题
【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?___
A. Apply permission for both contractors and non-contractors on the cluster level.
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?___
A. CPU and Memory capacity will be set to 50%.
B. CPU and Memory capacity will be set to 30%.
C. CPU and Memory capacity will be set to 25%.
D. CPU and Memory capacity will be set to 20%.
【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
【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.