【单选题】
为了实现快速、无损、智能的全自动化道路检测，为管理养护计划提供全面准确科学依据，最有效的设备为_______。___
A. 高清摄像头
B. 智能道路检测车等移动监测设施
C. 无人机
D. 人工巡查车
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相关试题
【单选题】
"BIM"的全称是_______。___
A. 建筑信息模型
B. 全球卫星定位系统
C. 北斗卫星定位系统
D. 建筑定位系统
【单选题】
_____是负责对物联网收集到的信息进行处理、管理、决策的后台计算处理平台。___
A. 感知层
B. 网络层
C. 云计算平台
D. 物理层
【单选题】
_____是物联网识别物体，采集信息的来源。 ___
A. 网络层
B. 感知层
C. 应用层
D. 云计算平台
【单选题】
RFID卡_____可分为：主动式标签（TTF）和被动式标签（RTF）。___
A. 按供电方式
B. 按工作频率
C. 按通信方式
D. 按标签芯片
【单选题】
云计算中SaaS是指____。 ___
A. 平台即服务
B. 软件即服务
C. 基础设施即服务
D. 通信即服务
【单选题】
以下特征中不属于物联网特征的是_____。 ___
A. 全面感知
B. 可靠传输
C. 智能处理
D. 虚拟化
【单选题】
由第三方服务商为用户提供的能够使用的云称为_____。 ___
A. 私有云
B. 公有云
C. 混合云
D. 社区云
【单选题】
车道车辆检测器计数精度偏差为≤0.1%，实测方法为人工记数核对，要大于_____。___
A. 100辆
B. 300辆
C. 500辆
D. 1000辆
【单选题】
电动栏杆起落总时间规定为≤4.0s，实测方法为_____。___
A. 秒表测10次，取平均值
B. 秒表测20次，取平均值
C. 秒表测50次，取平均值
D. 秒表测100次，取平均值
【单选题】
收费天棚信号灯的色度和亮度应符合_____。___
A. GB 14885
B. GB 14886
C. GB 14887
D. GB 14888
【单选题】
收费读写卡设备的响应时间以及对异常卡的处理实测次数为_____。___
A. 20次
B. 40次
C. 60次
D. 100次
【单选题】
实测过程为任意流程时关闭车道控制器(车道计算机)电源，要求车道工作状态正常，加电后数据无丢失。该测试为______。___
A. 断电数据完整性测试
B. 突发事件测试
C. 断网测试
D. 误码测试
【单选题】
ETC系统中与车载单元OBU通信完成收费交易的是______。___
A. 车道天线
B. 路测设备控制
C. 车道控制器
D. 路侧单元RSU
【单选题】
ETC系统收费方式的优越性和先进性十分突出，故适用于______。___
A. 所有的路网
B. 交通量大的高速路网
C. 城市交通主干线
D. 高等级公路
【单选题】
脚踏报警所属的系统是______。___
A. 人口车道设备
B. 出口车道设备
C. 紧急电话系统
D. 内部有线对讲系统
【单选题】
云台水平转动角规定值为______。___
A. ≥180°
B. ≥270°
C. 350°
D. ≥360°
【单选题】
云台垂直转动角规定值为______。___
A. 上仰≥10°，下俯≥70°
B. 上仰≥15°，下俯≥80°
C. 上仰≥15°，下俯≥90°
D. 上仰≥30°，下俯≥90°
【单选题】
收费视频监视系统主要单体设备包括______。___
A. 雨刷
B. 视频切换控制矩阵
C. 计算机
D. 交换机
【单选题】
过负荷保护电器，应装设在回路 或导体载流量减小处。___
【单选题】
电子信息系统机房内的业务主设备应由不间断电源系统供电。不间断电源系统应有自动和____装置，避免系统故障或维修时中断电源。___
A. 手动旁路
B. 静态旁路
C. 自动旁路
D. 手动变频旁路
【单选题】
电缆应按设计要求编号，颜色应符合：保护线（PE线）应为 色，中性线（N线）应为淡蓝色，L1相线应用黄色，L2相线应用绿色，L3相线应用 色。___
A. 黄绿相间、红
B. 黄红相间、红
C. 蓝白相间、绿
D. 红白相间、绿
【单选题】
发电机与机房的距离不得小于 米，并且发电机排出的油烟不得影响空调机组的正常运行。___
【单选题】
机房内通信设备及其供电设备正常不带电的金属部分，进机房电缆的保安装置接地端，以及电缆的金属护套均应作 。___
A. 通信回路接地
B. 保护接地
C. 中性点接地
D. 防雷接地
【单选题】
变压器安装的垂直偏差应小于（），水平度偏差应小于（）。___。
A. 1.2mm/m 1.5 mm/m
B. 1.2mm/m 1.8 mm/m
C. 1.5mm/m 2 mm/m
D. 1.8 mm/m 1.5 mm/m
【单选题】
高速公路供配电设施中户内盘柜安装中，母线平置时支持夹板的上部应与母线保存______的间隙；母线立置时，上部压板应与母线保持______的间隙。___
A. 1mm~1.5mm 1.5mm~2mm
B. 1mm~1.2mm 1.2mm~2mm
C. 1mm~1.5mm 1.2mm~1.8mm
D. 1mm~1.5mm 1.2mm~1.8mm
【单选题】
全彩色LED 显示屏的基色不包括______。___
【单选题】
隧道上方和洞口外______范围内，严禁从事采矿、采石、取土、倾倒废弃物、爆破作业等危及公路隧道安全的活动___
A. 50m
B. 80m
C. 150m
D. 100m
【单选题】
公路隧道养护应______，加强预防性养护保持公路隧道正常的使用状态。___
A. 贯彻“落实安全第一,预防为主,防消结合”的方针
B. 贯彻“落实安全第一,预防为主,综合治理”的方针
C. 贯彻“预防为主、防消结合”的方针
D. 贯彻“预防为主、防治结合”的方针
【单选题】
下列属于路网环境参数一级参数的是 ______。 ___
A. 路面温度
B. 路面状态
C. 风速
D. 降水量
【单选题】
全国公路网视频监测设施技术要求摄像机的平均无故障时间不小于______。___
A. 20000h
B. 30000h
C. 40000h
D. 50000h
【单选题】
计算机、服务器、网络设备、道路摄像机、车检器、可变情报监测器故障应在______内修复或更换。___
A. 12小时
B. 24小时
C. 48小时
D. 72小时
【单选题】
机房内无线电干扰场强，在频率范团0.15-1000MHz时不应大于______dB。___
A. 126
B. 136
C. 150
D. 200
【单选题】
通信机房浪涌保护器连接导线就平直，其长度不宜大于______m。___
A. 0.5
B. 1
C. 1.5
D. 2.0
【单选题】
下列哪个设施不属于计算机网络设施。___
A. 服务器
B. 工作站
C. 交换机
D. SDH传输设备
【单选题】
部、省级路网平台之间应建立备用传输链路，备用传输链路可基于公网或专网的传输通道实现，其带宽不小于______ 。___
A. 5Mbit/s
B. 10 Mbit/s
C. 16 Mbit/s
D. 20 Mbit/s
【单选题】
路段分中心计算机系统一般采用的网络结构是______。___
A. 单絞线星型
B. 双绞线星型
C. 单胶线树形
D. 双绞线树形
【单选题】
公路网联网及数据接口技术要求的传输网络性能中错包率的上限值为 ______。 ___
A. 1*10-2
B. 1*10-4
C. 1*10-3
D. 1*10-5
【单选题】
高速公路干线传输网为每个路段收费分中心提供______以太网传输通路。___
A. 10/100Mbit/s
B. 10/1000Mbit/s
C. 10Mbit/s
D. 100/1000Mbit/s
【单选题】
______是当今现有局域网采用的最通用的通信协议标准。___
A. 以太网
B. 令牌环网（token ring）
C. FDDI
D. ARCNET
【单选题】
目前河南省高速公路收费站备份路由系统采用的设备型号是______ 。___
A. ICG3000
B. ICG2000
C. ICG4000
D. ICG5000
推荐试题
【单选题】
An administrator has just configured the IP address on an ESXi host from the Direct Console User Interface. How can the configuration be validated as correct without any additional tools?___
A. Add the host to vCenter Server and if it works, then all networking settings are ok.
B. Select the Test Management Network option from the DCUI.
C. Connect to the host with the vSphere Client and click the Test Network option.
D. Use PowerCLI to connect to the host and initiate a network test.
【单选题】
An administrator is installing vCenter Server for an environment that has 40 ESXi 6.x Hosts and 150 virtual machines. Which database would meet the minimal requirements needed for this task? ___
A. vFabric Postgres
B. Microsoft SQL Express 2008
C. Microsoft SQL Server 2014
D. Oracle 11g
【单选题】
What is a requirement when enabling a Virtual SAN cluster in an existing High Availability (HA) and Distributed Resource Scheduler (DRS) Cluster? ___
A. Disable DRS and HA before enabling Virtual SAN
B. Enable DRS before enabling Virtual SAN
C. Disable HA before enabling Virtual SAN
D. Enable Storage DRS before enabling Virtual SAN
【单选题】
The vSphere administrator attempts to connect to an ESXi host via an SSH client and receives the following security alert: The vSphere administrator needs to determine whether the RSA key fingerprint shown in the security alert is the fingerprint of the intended ESXi host. Which tool should the vSphere administrator use? ___
A. Direct Console User Interface
B. vSphere Client
C. vSphere Web Client
D. vSphere Management Assistant
【单选题】
An administrator needs to monitor traffic on vSwitches in a vSphere 6.x environment. Which option, if configured, would accomplish this task? ___
A. Forged Transmits
B. MAC Address Changes
C. Promiscuous Mode
D. Notify Switches
【单选题】
What is true regarding datastores on ESXi 6.x? ___
A. NFS 4.1 datastore does not support Fault Tolerance (FT)
B. VMFS3 and VMFS5 datastores can be newly created
C. NFS datastore can be concurrently mounted using NFS 4.1 on one host and NFS on another
D. NFS 3.0 datastore does not support Fault Tolerance (FT)
【单选题】
An administrator is cloning and configuring five new web server virtual machines. What would be the benefit of configuring resource shares for the new VMs? ___
A. To prioritize access to a resource during contention.
B. To guarantee access to a resource during contention.
C. To prioritize access to a resource before contention occurs.
D. To guarantee access to a resource before contention occurs.
【单选题】
An administrator logs into the vSphere Web Client and sees the warning shown in the Exhibit. During a change control window, the warning was addressed. What should be done to verify that the host is no longer showing the warning? ___
A. Run a Remediate host operation.
B. Recheck the compliance of the host.
C. Restart the host to get rid of the warning.
D. Install VMware tools to clear the warning.
【单选题】
A vApp named Sales has a Memory Limit of 32 GB and a CPU Limit of 12,000 MHz. There are three virtual machines within the vApp: <Sales-DB -- Has a memory reservation of 20 GB. > <Sales-DC -- Has a memory reservation of 8 GB. > <Sales-Web -- Has a memory reservation of 8 GB.> Which statement is correct? ___
A. All three virtual machines can power on, but will have memory contention.
B. All three virtual machines can power on without memory contention.
C. Only two of the three virtual machines can power on.
D. Only one of the virtual machines can power on.
【单选题】
You are editing the management network configuration of an ESXi 6.x Host from the vSphere Web Client. You mistakenly put the incorrect VLAN in place for the management network. What action do you need to take to correct this? ___
A. You need to manually edit the configuration on the host with command line utilities.
B. No action is required. By default ESXi rolls back configuration changes that disconnect the host.
C. The ESXi host system configuration will need to be restored to the factory configuration to fix the issue.
D. The change can be reverted in the vSphere Web Client by simply editing the switch again.
【单选题】
What is true about resource pools created on a Distributed Resource Scheduler (DRS) cluster?___
A. A root resource pool is created with the specified values.
B. A root resource pool is automatically created using the aggregate total of the ESXi host resources in the cluster.
C. A root resource pool is automatically created using the aggregate total of all resources in the datacenter.
D. A root resource pool is not needed when creating resource pools on a DRS cluster.
【单选题】
An administrator attempts to enable Enhanced vMotion Compatibility (EVC) on a cluster. The operation results in a compatibility error, as shown in the exhibit. What is the likely cause of this error? ___
A. The CPUs in the ESXi host are not AMD CPUs.
B. The CPUs in the ESXi host do not support hardware virtualization capabilities.
C. The XD/NX CPU features have not been enabled in the BIOS of the server.
D. There is no shared storage between the hosts in the cluster.
【单选题】
What condition would prevent an administrator from creating a new VMFS3 datastore on an ESXi 6.x host using the vSphere Web Client? ___
A. A VMFS3 datastore cannot be created on an ESXi 6.x host.
B. The VMFS3 kernel module is not loaded.
C. A VMFS3 datastore cannot be mounted on an ESXi 6.x host.
D. VMFS3 datastores are not compatible with virtual machines created on an
E. SXi 6.x host.
【单选题】
During a new vSphere Distributed Switch configuration, where does the Maximum Transmission Unit (MTU) value get modified? ___
A. Uplink Settings
B. Switch Settings
C. Portgroup Settings
D. NIC Teaming Settings
【单选题】
A small company wants to use VMware products for its production systems. The system administrator needs to recommend a solution that will deliver High Availability to the company's production applications. What is minimum vSphere offering that will support this requirement? ___
A. vSphere Essentials
B. vSphere Essentials Plus
C. vSphere Hypervisor
D. vSphere Standard
【单选题】
Which scenario shows a reason for VMware Tools failing to install? ___
A. Virtual machine has a CD-ROM configured.
B. Guest OS Antivirus is blocking the VMware Tools installation.
C. Guest OS has 64-bit ldd (list dynamic dependencies) utility installed.
D. Virtual machine is powered on.
【单选题】
An administrator is configuring an ESXi 6.x host to use multiple NICs to resolve a management network redundancy error. After configuring a second NIC, the server is not able to communicate when the primary connection is taken down. The administrator analyzes the Exhibit shown here. Based on the exhibit, what is the likely cause of the issue? ___
A. vmnic4 is not attached to a vSwitch.
B. vmnic2 is not connected to a physical switch.
C. E1000 is the incorrect NIC
D. river for this card.
【单选题】
What information is required as part of an interactive ESXi 6.x installation? ___
A. Keyboard layout
B. IP Address
C. Root password
D. DNS information
【单选题】
What is the default load balancing policy for a newly created VMkernel port on a vSphere Distributed Switch? ___
A. Route based on orginating virtual port ID
B. Route based on IP Hash
C. Route based on source mac address
D. Route based on physical NIC load
【单选题】
An administrator deploys vCenter Server using the embedded Platform Services Controller. After testing the deployment for a couple of months, it is determined that the environment would be better served with an external Platform Services Controller. What should the administrator do to meet this new requirement? ___
A. Deploy a fresh instance of vCenter Server with an external Platform Services Controller.
B. Perform a fresh install of an external Platform Services Controller.
C. Migrate the embedded Platform Services Controller to an external Platform Services Controller.
D. Upgrade the embedded Platform Services Controller to an external Platform Services Controller.
【单选题】
Why are some virtual machines orphaned after rebooting a High Availability (HA) enabled host? ___
A. The Orphaned virtual machines have HA restart disabled.
B. The Orphaned virtual machines moved recently and the change did not persist.
C. The host is attached to failed storage.
D. The host just came out of maintenance mode.
【单选题】
Which vSphere 6 Standard Edition feature will allow an organization to ensure that critical multi-threaded applications have the maximum possible uptime? ___
A. Fault Tolerance
B. High Availability
C. Distributed Resource Scheduler
D. App HA
【多选题】
An application running in a virtual machine is experiencing performance issues. When utilizing performance monitoring utilities, it is noted that the CPU Utilization of the application is at 100%. Which two scenarios are probable causes of the CPU contention for the application? (Choose two.)___
A. There is a network I/O constraint.
B. There is a storage I/O constraint.
C. There is insufficient disk space assigned to the virtual machine.
D. The application is not virtualization aware.
【多选题】
A Fault Tolerance (FT) virtual machine with four vCPUs is experiencing high latency when performing ICMP and Application tests. What are three potential causes that may be attributing to this latency? (Choose three.)___
A. The FT network has insufficient bandwidth and is running on a 1GB Link.
B. The FT network is on a particularly high latency link.
C. The FT network has been configured with Network I/O Control.
D. The FT virtual machine is running an e1000 network adapter.
E. The
F. T virtual machine is running on poor performing network-based storage.
【多选题】
A virtual machine is experiencing performance issues. The following performance metrics are observed: <CPU usage value for the virtual machine is above 90%> < CPU ready value for the virtual machine is above 20%> Which two activities will likely resolve the performance issues? (Choose two.)___
A. Set a CPU reservation for the virtual machine.
B. Increase the CPU limit on the virtual machine.
C. Decrease CPU shares equally for all virtual machines on the host.
D. Increase CPU shares equally for all virtual machines on the host.
【多选题】
An administrator is upgrading a vSphere Distributed Switch. The existing switch is version 6.0 and the administrator wants to upgrade to the latest version possible. The environment contains several ESXi 6.1 hosts. Which two options are available to ensure that the upgraded switch will be compatible with these hosts? (Choose two.)___
A. Upgrade the vSphere Distributed Switch to 6.0
B. Upgrade the ESXi 5.5 hosts to version 6.0, then upgrade the vSphere Distributed Switch to 5.5
C. Upgrade the vSphere Distributed Switch to 5.1
D. Upgrade the
E. SXi host switches to 5.5, then upgrade the vSphere Distributed Switch to 5.5
【多选题】
An administrator attempts to create a Thick Provisioned Virtual Disk (VMDK) on an NFS datastore; but it fails. Which two reasons would explain the failure? (Choose two.)___
A. Datastore is on an NFS 3 storage server that does not support Hardware Acceleration
B. Datastore is on an NFS 4.1 storage server
C. Only VMFS datastores support "Thick Provisioned" VMDK
D. The NFS datastore was not created on a "Thick Provisioned" device
【多选题】
Which two NFS Protocol versions does vSphere 6 support? (Choose two.)___
A. Version 3
B. Version 3.1
C. Version 4
D. Version 4.1
【多选题】
Which three operations occur during a cold migration of a virtual machine? (Choose three.)___
A. The virtual machine disks are moved if the datastore is being changed.
B. The virtual machine is registered with the destination server.
C. The source virtual machine is removed from the old hosts.
D. The virtual machine hardware is upgraded.
E. The virtual machine files are quiesced prior to the migration.
【多选题】
A 4 GB Memory virtual machine is experiencing extended memory issues, as shown in the Exhibit. What potential issues could be attributed to this memory pressure?___
A. A limit is imposed on the virtual memory of this virtual machine.
B. The Balloon driver has been uninstalled.
C. A limit has been imposed on the Virtual CPU of the virtual machine.
D. Storage IO control has been enabled for the virtual machine causing the swapped memory.
【多选题】
You are creating a virtual machine in the Web Client using the New Virtual Machine wizard. Which two steps are required? (Choose two.)___
A. Select a valid name.
B. Select a cluster for the compute resource.
C. Select a network adapter.
D. Select the virtual machine compatibility.
【多选题】
An administrator has been given requirements to configure vMotion for a new virtual machine. The configuration should: <Provide Network Redundancy Use VLAN 550> <Be secured against anyone trying to spoof communication The vSwitch1 configuration is shown in the Exhibit.> Which three changes should be made to meet the stated requirements? (Choose three.)___
A. The VLAN ID must be set appropriately.
B. The default values for MAC Address Changes and Forged Transmits must be altered.
C. The teaming and failover adapters must be set appropriately.
D. The Traffic Shaping configuration must be altered.
E. The Load Balancing Policy must be set appropriately.
【多选题】
Which three traffic types are available services options when configuring a vmkernel port? (Choose three.)___
A. Provisioning Traffic
B. Virtual Volumes Traffic
C. vSphere Replication NFC Traffic
D. Virtual SAN Traffic
E. FCoE Traffic
【多选题】
An administrator logs into the vSphere Web Client, but is unable to see any hosts and clusters. Which two options could fix the problem? (Choose two.)___
A. Verify that the client web browser and vCenter Server are in the same broadcast domain.
B. Verify that the vCenter Server system is registered with the same Platform Services Controller as the vSphere Web Client.
C. Log in to the vCenter Server as a user within the Active
D. irectory domain.
【多选题】
Which three VLAN Tagging modes are available in vSphere 6.x? (Choose three.)___
A. External Switch Tagging
B. Private VLAN Tagging
C. Virtual Switch Tagging
D. VXLAN Tagging
E. Virtual Guest Tagging
【多选题】
Which two statements are true about VMFS5 datastores on ESXi 6.x? (Choose two.)___
A. Virtual Disk (VMDK) size can be larger than 2TB.
B. Datastore extent size can be larger than 2TB.
C. Only Physical Mode Raw
D. evice Map (Passthrough-RDM) can be larger than 2TB.
【多选题】
Which two statements are correct when turning off a Distributed Resource Scheduler (DRS) Cluster? (Choose two.)___
A. The resource pool hierarchy of the DRS cluster is maintained.
B. The resource pool hierarchy of the DRS cluster is removed.
C. The affinity settings of the
D. RS cluster are removed and not maintained when DRS is re-enabled.
【多选题】
An administrator is creating a new Virtual SAN cluster on a Layer 2 network. There is an existing Virtual SAN cluster on the same Layer 2 network. Which two actions would allow the new Virtual SAN cluster to coexist with the older cluster? (Choose two.)___
A. Change the default Multicast Address on the new Virtual SAN cluster.
B. Change the default Unicast Address on the new Virtual SAN Cluster.
C. Create a separate VLAN for each cluster.
D. Create an ARP Alias for the Virtual SAN VMkernel Network Adapter.
【多选题】
A vCenter Operations Manager 5.7 environment is upgraded to vRealize Operations. After the upgrade, the analytics services fail to start. Which three steps must be taken to resolve the problem? (Choose three.)___
A. Take the vRealize Operations cluster offline.
B. Delete the activity persistence files.
C. Bring the cluster back online.
D. Remove any unresponsive nodes.
E. Stop the CaSA service.
【多选题】
An organization has an ESXi 6.x host that contains two resource pools. The host is being relocated to a DRS cluster. What two actions can be taken to integrate the host into the cluster, and what would happen to the existing ESXi resource pool hierarchy as a result? (Choose two.)___
A. Place all of the host's virtual machines into the DRS cluster root resource pool. The resource pools present on the host will be deleted.
B. Create a resource pool for the ESXi host's virtual machines and resource pools. The resource pools present on the host will be deleted.
C. Place all of the host's virtual machines into the DRS cluster root resource pool. The resource pools present on the host will be preserved.
D. Create a resource pool for the
E. SXi host's virtual machines and resource pools. The resource pools present on the host will be preserved.
