【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
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相关试题
【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.
【多选题】
Which two parameters are required when adding an iSCSI target to an iSCSI Software Adapter using Dynamic Discovery? (Choose two.)___
A. The iSCSI device's IP Address or Fully Qualified Domain Name
B. The Port Number
C. The iSCSI device's iSCSI Qualified Name (IQN)
D. The Default Gateway IP Address
【多选题】
Which two SMTP Notification Event Details are specific to alarms triggered by events? (Choose two.)___
A. User Name
B. Summary
C. Old Status
D. Target
【多选题】
Which two High Availability ___ Cluster admission control policies can help avoid resource fragmentation? (Choose two.)(AC)
A. Define failover capacity by static number of hosts
B. Define failover capacity by reserving a percentage of the cluster resources
C. Use dedicated failover hosts
D. Use Virtual Machine Monitoring
【多选题】
An attempt to enable vSphere Fault Tolerance for a powered-on virtual machine fails. Which two scenarios would result in this failure? (Choose two.)___
A. The virtual machine has three vCPUs configured.
B. The host on which the virtual machine is running has insufficient memory resources.
C. The virtual machine has insufficient resources to accommodate full reservation plus the overhead memory.
D. VMware High Availability is enabled on the cluster of which this host is a member.
【多选题】
A vApp template recently added to a Content Library is not displayed. Which two actions could correct this problem? (Choose two.)___
A. Manually synchronize the library
B. Select the Download all library content immediately option
C. Select the Sync subscribed library option
D. Manually download the vApp template
【多选题】
What are three valid disk configurations for the vSphere Data Protection 6.x Appliance? (Choose three.)___
A. 500GB
B. 1TB
C. 1.5TB
D. 2TB
E. 4TB
【多选题】
Which three connection types are available when configuring a vSwitch in the vSphere Web Client? (Choose three.)___
A. VMkernel Network Adapter
B. Physical Network Adapter
C. Virtual Machine Port Group for a Standard Switch
D. vMotion Network Adapter
E. vSAN Network Adapter
【多选题】
Which three features can be enabled for a new host cluster? (Choose three.)___
A. Storage Distributed Resource Scheduling
B. High Availability
C. Fault Tolerance
D. Distributed Resource Scheduling
E. Virtual SAN
【多选题】
An administrator receives a report that no real time statistics are available for a virtual machine in the vCenter Server inventory. Which two statements indicate likely causes of the problem? (Choose two.)___
A. The virtual machine is powered off.
B. The host containing the virtual machine is disconnected from vCenter Server.
C. There is insufficient real time data to display the information.
D. The vCenter Server service is not running.
【多选题】
Your manager has given you a bash script that retrieves data for ESXi 6.x host configurations. This data needs to be collected right after the installation of a host and must be run directly on the host. Which two actions can be used to run this script on an ESXi host? (Choose two.)___
A. Connect to the host with Ruby vSphere Console and run the script from there.
B. Enable SSH access from the Direct Console User Interface.
C. Enable the ESXi Shell from the
D. irect Console User Interface.
【多选题】
Which two are true about the Risk badge in vRealize Operations? (Choose two.)___
A. The Risk badge indicates potential future problems that may degrade the performance of the system.
B. Risks may require attention in the near future.
C. The Risk badge indicates problems that are degrading performance of the system.
D. Risks require attention now to correct system performance problems.
【多选题】
vSphere Update Manager allows which two virtual machine attributes to be upgraded? (Choose two.)___
A. Virtual machine firewall policies for NSX.
B. Software Packages in the virtual machine.
C. Virtual machine Hardware Version.
D. VMware Tools Upgrade.
【多选题】
What are two benefits of using NFS 4.1 with vSphere 6.x as compared to NFS 3? (Choose two.)___
A. NFS 4.1 supports Kerberos Authentication
B. NFS 4.1 supports multipathing
C. NFS 4.1 supports IPv6
D. NFS 4.1 supports hardware acceleration
【多选题】
Which three statements are true regarding Fault Tolerance? (Choose three.)___
A. Applications need to be continuously available to users.
B. Applications without native clustering capabilities can be protected.
C. Custom clustering solutions are complicated to configure and maintain.
D. Applications that have 16 vCPUs are supported.
E. Prevents application crashes by analyzing the workload and correcting problems.
【多选题】
Which two statements are true regarding VMware vSphere Flash Read Cache (vFRC)? (Choose two.)___
A. Cache fills and cache evictions happen in the granularity of a cache block size.
B. vFRC caches data from both read and write I/Os, but write I/Os are always serviced by the underlying storage.
C. vFRC caches data from both read and write I/Os, but write I/Os are always serviced by the underlying cache data.
D. Cache fills and cache evictions happen in the granularity of the disk block size.
【多选题】
What are two possible causes of Storage Distributed Resource Scheduler (SDRS) being disabled on one or more virtual machine disks in a datastore cluster? (Choose two.)___
A. The virtual machine has vSphere Fault Tolerance disabled.
B. The virtual machine is a template.
C. The virtual machine swap file is on a shared datastore.
D. The disk is a CD-ROM/ISO file.
【多选题】
An administrator attempts to install vCenter Single Sign-On Server. The installer returns an error message indicating that the installation failed. Prior to the installation, all setup prerequisites were met. The administrator has generated a vCenter Server Single Sign-On support bundle. Which two files should the administrator analyze to determine the cause of the failure? (Choose two.)___
A. Server\utils\logs\imsTrace.log
B. Server\utils\logs\install.txt
C. %TEMP%\utils\logs\vminst.log
D. %TEMP%\vminst.log
【多选题】
An administrator is unable to remove an ESXi 6.x host from a vSphere Distributed Switch. What are two likely reasons for this issue? (Choose two.)___
A. Vmkernel interfaces on the switch are still in use.
B. VM Network port group adapters are connected to different switch.
C. Physical NICs are migrated to different switch.
D. VM Network adapters are connected to this switch.
推荐试题
【单选题】
消防员隔热防护服是消防员在灭火救援靠近___区受到强辐射热侵害时穿着的防护服
【单选题】
以下关于隔热防护服维护保养说法错误的是：___
A. 灭火或训练后，消防员隔热防护服应及时清洗、擦净、晾干
B. 隔热层和外层可以一起清洗，清洗时不能使用硬刷或用强碱，以免影响防水性能。
C. 消防员隔热防护服在运输中应避免与油、酸、碱等易燃、易爆物品或化学药品混装。
D. 消防员隔热防护服应贮存在干燥、通风的仓库中。
【单选题】
以下关于避火防护服维护保养说法错误的是：___
A. 使用后可用干棉纱将消防员避火防护服表面烟垢和熏迹擦净
B. 镀金视窗应用软布擦拭干净，并覆盖一层PVC膜保护，以备再用
C. 消防员避火防护服应保存在干燥通风处，防止受潮和污染
D. 衣服上的污垢可用软毛刷蘸中性洗涤剂刷洗，并用清水冲洗净，可以用水浸泡或捶击
【单选题】
电绝缘装具是消防员在具有7000V以下高压电现场作业时穿着的用于保护自身安全的防护装具，具有耐高电压、___耐酸、碱等性能。
【单选题】
以下关于电绝缘装具说法错误的是：___
A. 电绝缘装具具有优良的耐电压性能，能与火焰及熔化物直接接触。
B. 电绝缘装具在使用前，要认真检查有无破损，如有破损及漏电现象，严禁使用。
C. 电绝缘装具在保存期间，严禁受热及阳光照射，不许洗涤，不许接触活性化学物质及各种油类。
D. 电绝缘装具在符合标准规定的条件下保存，保质期为二年
【单选题】
防化手套适用于消防员在处置___事故现场作业时的手部和腕部防护。
A. 火场灾害
B. 辐射灾害
C. 化学灾害
D. 有毒灾害
【单选题】
下列不属于消防人员基本防护装备的是___。
A. 消防头盔
B. 灭火防护服
C. 一级防护服
D. 空气呼吸器
【单选题】
下列哪类不属于重大灾害事故应急救援中的个人防护等级___。
【单选题】
下列哪项内容不属于洗消处理___。
A. 场地洗消
B. 器材洗消
C. 人员洗消
D. 车辆洗消
【单选题】
公安消防部队在参与重大灾害事故应急救援中，二级个人防护为___。
A. 全身、封闭式防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐
B. 全身、内置式重型防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐
C. 全身、简易防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐
D. 呼吸、简易防化服、战斗服、简易滤毒罐、面罩或口罩、毛巾等防护器材
【单选题】
公安消防部队在参与重大灾害事故应急救援中，三级个人防护为___。
A. 全身、封闭式防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐
B. 全身、内置式重型防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐
C. 全身、简易防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐
D. 呼吸、简易防化服、战斗服、简易滤毒罐、面罩或口罩、毛巾等防护器材
【单选题】
处置大型化工装置、设施、油罐等事故，应及时要求___到场协助，及时控制火势，遏制爆炸。
A. 各级消防部队灭火救援专家
B. 特勤中队携带相关救援装备
C. 事发单位的技术人员
D. 安检、环保、公安、武警等有关部门。
【单选题】
下列哪任务不属于公安消防部队承担的各种事故的抢险救援___。
A. 地震
B. 危险化学品泄漏事故
C. 建筑物倒塌事故
D. 交通事故
【单选题】
下列哪任务不属于公安消防部队承担的各种自然灾害的抢险救援___。
A. 地震
B. 风灾
C. 水灾
D. 建筑物倒塌
【单选题】
下列哪特点不属于公安消防部队抢险救援任务特点___。
A. 多样性
B. 复杂性
C. 艰巨性
D. 突发性
【单选题】
下列哪内容不属于公安消防部队抢险救援的基本原则___。
A. 政府领导，统一指挥
B. 快速行动，科学处置
C. 以人为本，救人优先
D. 加强调度，连续作战
【单选题】
公安消防部队在参加抢险救援行动中进入剧毒重度危险区时，应实施___级防护。
【单选题】
公安消防部队在参加抢险救援行动中进入剧毒轻度危险区时，应实施___级防护。
【单选题】
公安消防部队在参加抢险救援行动中进入低毒中度危险区时，应实施___级防护。
【单选题】
公安消防部队在参与重大灾害事故应急救援中: 全身、内置式重型防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐属于___级防护。
【单选题】
公安消防部队在参与重大灾害事故应急救援中: 全身、封闭式防化服、全棉防静电内外衣、正压式空气呼吸器或全防型滤毒罐属于___级防护。
【单选题】
公安消防部队在参与重大灾害事故应急救援中: 呼吸、简易防化服、战斗服、简易滤毒罐、面罩或口罩、毛巾等防护器材属于___级防护。
【单选题】
事故现场有易燃易爆气体或有毒有害物质扩散时，在扩散区___选择进攻路线接近扩散区。
A. 上风、侧上风方向
B. 上风方向
C. 下风、侧上风方向
D. 下风方向
【单选题】
下列哪项设备不属于洗消设备___。
A. 消防部队装备的专用洗消车、洗消帐篷
B. 军队防化部门装备的供人员洗消用的洗消车和供地面洗消用的喷洒车
C. 消防水罐车、环卫洒水车
D. 防爆水泵
【单选题】
液化石油气泄漏事故特点为___。
A. 扩散迅速，危害范围大、易发生爆炸燃烧事故和处置难度大。
B. 扩散迅速，危害大、易造成大量人员中毒伤亡和污染环境，洗消困难。
C. 易发生爆炸燃烧事故、易造成人员中毒伤亡和污染环境。
D. 突发性强，危害大；易造成大量人员中毒伤亡；易造成交叉感染；政治影响大和救援难度大。
【单选题】
液化石油气处置过程中进入现场或警戒区内的人员必须___。
A. 佩戴隔绝式呼吸器，穿着全封闭式消防防化服
B. 佩戴隔绝式呼吸器，穿着简易消防防化服
C. 可穿纯绵战斗服，扎紧裤口袖口，勒紧腰带裤带
D. 全身浇湿
【单选题】
液化石油气处置过程中驱散稀释不得使用___水枪，以免强水流冲击产生静电。
【单选题】
液氯常温下为___的气体。
A. 黄色、有强烈刺激性臭味
B. 黄绿色、有强烈刺激性臭味
C. 黄色、无味
D. 黄绿色、 无味
【单选题】
液化石油气泄漏事故处置的程序和措施为___。
A. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、排除险情和清理移交
B. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生
C. 接警出动、个人防护、现场询情、侦察检测、排除险情、现场急救、作好灭火准备和清理移交。
D. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、控毒排险、现场急救、洗消处理、清理移交
【单选题】
氯气泄漏事故处置的程序和措施为___。
A. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、排除险情和清理移交
B. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生
C. 接警出动、个人防护、现场询情、侦察检测、排除险情、现场急救、作好灭火准备和清理移交。
D. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、控毒排险、现场急救、洗消处理、清理移交
【单选题】
液化石油气处置过程中倒罐、转移必须在___的掩护下进行，以确保安全。
A. 喷雾水枪
B. 消防水炮
C. 泡沫枪
D. 直流水枪
【单选题】
液氯泄漏事故进入事故现场的救援人员必须佩戴隔绝式呼吸器，进入内部执行关阀堵漏任务的救援人员要按___防护标准加强个人防护。
【单选题】
公路交通事故特点为___。
A. 事故频率高、人员伤亡大、易引发次生灾害和救援难度大
B. 事故地点不确定、物质性质难判定、事故危险性大和处置难度大
C. 易引发次生灾害、人员伤亡大、堵塞隧道交通、经济损失大和救援困难
D. 人员伤亡重、容易引发次生灾害、造成交通中断和救援困难
【单选题】
隧道交通事故特点为___。
A. 事故频率高、人员伤亡大、易引发次生灾害和救援难度大
B. 事故地点不确定、物质性质难判定、事故危险性大和处置难度大
C. 易引发次生灾害、人员伤亡大、堵塞隧道交通、经济损失大和救援困难
D. 人员伤亡重、容易引发次生灾害、造成交通中断和救援困难
【单选题】
公路交通事故处置程序与措施为___。
A. 接警出动、侦察检测、设立警戒、救生排险、现场急救、清理移交
B. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散人员、排除险情、洗消处理和清理移交。
C. 接警出动、现场侦检、设立警戒、开展人员救助、排除险情搞好保障、清理移交
D. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、排除险情、现场急救、搞好保障、清理移交
【单选题】
隧道交通事故处置程序与措施为___。
A. 接警出动、侦察检测、设立警戒、救生排险、现场急救、清理移交
B. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散人员、排除险情、洗消处理和清理移交。
C. 接警出动、现场侦检、设立警戒、开展人员救助、排除险情搞好保障、清理移交
D. 接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、排除险情、现场急救、搞好保障、清理移交
【单选题】
交通事故处理过程中，使用破拆工具破拆车体时，应使用___掩护，防止金属碰撞产生火花，引起油蒸气爆炸，发生火灾。
A. 雾状水
B. 直流水
C. 直流水或开花水
D. 泡沫液
【单选题】
事故现场有易燃易爆气体或有毒有害物质扩散时，消防车要选择___的适当位置停靠。
A. 上风方向或侧上风方向
B. 上风方向C、侧上风方向 D、下风方向
