64、An administrator is preparing for a deployment of a new vCenter Server Appliance. The following information has been provided to complete the deployment:•ESXi Host name (FQDN): esx0l.corp local . ESXi IP Address: 172.20.10.200 •vCenter Server Name (FQDN): vcsa01 corp.local •vCenter Server IP Address: 172.20 10.100 •NTP Server: 172.20.10.20 •DNS Server: 172.20.10.1 •Deployment Size: Tiny •Storage Size: Default Which two actions must the administrator complete before starting the installation of the vCenter Server Appliance? (Choose two.)

解析：解析: The bronze tier VM is entitled to 30，000 IOPS， which is the maximum number of IOPS that the datastore supports. Storage I/O Control (SIOC) does not limit the IOPS of any VM unless the datastore latency exceeds the threshold， which is 30 ms in this case. Therefore， as long as the datastore latency is below 29 ms， the bronze tier VM can use up to 30，000 IOPS.解释青铜级虚拟机有权获得30，000 IOPS，这是数据存储区支持的最大IOPS数量。存储I/O控制(SIOC)不会限制任何虚拟机的IOPS，除非数据存储延迟超过阈值，在本例中为30毫秒。因此，只要数据存储延迟低于29毫秒，青铜级虚拟机就可以使用多达30，000 IOPS。

解析：解析: Installing VMware Tools will enable the graceful restart option for the virtual machine， as well as other features such as time synchronization and guest OS customization.安装VMware Tools将启用虚拟机的正常重启选项，以及其他功能，如时间同步和来宾操作系统自定义。

解析：解析: Option D is correct because it indicates that Enhanced Linked Mode must be configured to allow the administrator to manage the VMware vCenter inventories in both sites from a single vSphere Client session. Enhanced Linked Mode allows multiple vCenter Server instances to share information such as tags， licenses， roles， permissions， and policies. Option A is incorrect because VMware Certificate Authority is a service that provides certificates for vSphere components and does not affect inventory management. Option B is incorrect because VMware Site Recovery Manager is a solution that provides disaster recovery and business continuity for vSphere environments and does not affect inventory management. Option C is incorrect because vCenter Single Sign-On is a service that provides authentication and authorization for vSphere components and does not affect inventory management.选项D是正确的，因为它表示必须配置增强链接模式，以允许管理员从单个vSphere Client会话管理两个站点中的VMware vCenter清单。增强链接模式允许多个vCenter Server实例共享信息，如标记、许可证、角色、权限和策略。选项A不正确，因为VMware Certificate Authority是一项为vSphere组件提供证书的服务，不会影响清单管理。选项B不正确，因为VMware Site Recovery Manager是一种为vSphere环境提供灾难恢复和业务连续性的解决方案，不会影响库存管理。选项C不正确，因为vCenter Single Sign-On是一项为vSphere组件提供身份验证和授权的服务，不会影响清单管理。

解析：解析:The security policy that must be configured at the port group level to allow all traffic to be forwarded regardless of the destination is promiscuous mode set to accept， which allows receiving all traffic on a virtual switch port.必须在端口组级别配置安全策略，以允许转发所有流量，而不管目的地是哪里，将混杂模式设置为接受，这允许在虚拟交换机端口上接收所有流量。

解析：

69、 An administrator set up the following configuration: • The distributed switch has four ESXi hosts， and each host has two 10 Gbps NICs. • In the Network I/O Control configuration， the amount of bandwidth reserved for virtual machine (VM) traffic if 4 Gbps. The administrator wants to guarantee that VMs in the Retail distributed port group can access 50 percent of the available reserved bandwidth for VM traffic. Given this scenario， what should the size (in Gbps ) of the Retail network resource pool be?

解析：解析: 4Gbps*8Nic=32Gbps*50%=16Gbps

解析：解析:Powered on (does not include memory) Reverts to the parent snapshot and the virtual machine is powered off. Powered off (does not include memory) Reverts to the parent snapshot and the virtual machine is powered off.启动(不包括内存)恢复到父快照，虚拟机关闭。关闭(不包括内存)恢复到父快照，虚拟机关闭。

解析：解析: Option A is correct because it allows the administrator to clone a VM to the content library as a VM templatetype， which can be used to create and manage different versions of these templates in the content library.Option B is incorrect because it requires the administrator to convert a VM to a template in the vCenter inventory first， which is an extra step. Option C is incorrect because it requires the administrator to export a VM to an OVF template and import it into the content library， which are extra steps. Option D is incorrect because it requires the administrator to convert a VM to a template in the vCenter inventory and clone it to the content library， which are extra steps.选项A是正确的，因为它允许管理员将虚拟机作为虚拟机模板类型克隆到内容库中，这可用于在内容库中创建和管理这些模板的不同版本。选项B不正确，因为它要求管理员首先将虚拟机转换为vCenter清单中的模板，这是一个额外的步骤。选项C不正确，因为它要求管理员将虚拟机导出到OVF模板，然后导入到内容库中，这是额外的步骤。选项D不正确，因为它要求管理员将虚拟机转换为vCenter清单中的模板，并将其克隆到内容库，这是额外的步骤。

解析：解析:Option B is correct because it allows the administrator to create a cold clone of the physical server using VMware vCenter Converter， which will create an image of the guest OS and application that can be moved to this remote data center without requiring network connectivity or affecting the application’s data. Option A is incorrect because creating a hot clone of the physical server using VMware vCenter Converter will require network connectivity and may affect the application’s data due to changes during conversion. Option C is incorrect because restoring the guest OS from a backup will require network connectivity and may not include the latest changes in the application. Option D is incorrect because using storage replication to replicate the guest OS and application will require network connectivity and may not be feasible for a physical server.选项B是正确的，因为它允许管理员使用VMware vCenter Converter创建物理服务器的冷克隆，这将创建来宾操作系统和应用程序的映像，这些映像可以移动到该远程数据中心，而不需要网络连接或影响应用程序的数据。选项A不正确，因为使用VMware vCenter Converter创建物理服务器的热克隆需要网络连接，并且可能会由于转换期间的更改而影响应用程序的数据。选项C不正确，因为从备份恢复来宾操作系统需要网络连接，并且可能不包括应用程序中的最新更改。选项D不正确，因为使用存储复制来复制来宾操作系统和应用程序需要网络连接，对于物理服务器来说可能不可行。

解析：The administrator should take these three steps to perform an update to vSphere clusters that are running vSAN: Configure vSphere Lifecycle Manager with an image for the cluster, which allows the administrator to specify the desired ESXi version and firmware for the hosts in the cluster. Register the vendor hardware management system as a vCenter Server extension, which allows the administrator to update the firmware on the hosts using vSphere Lifecycle Manager. The vendor hardware management system can also provide the firmware updates to vSphere Lifecycle Manager, so there is no need to download them from the vendor website separately. Run a hardware compatibility check using vSphere Lifecycle Manager, which verifies that the new software and firmware versions are compatible with the vSAN Hardware Compatibility List.管理员应采取以下三个步骤来对运行vSAN的vSphere集群执行更新:使用集群映像配置vSphere Lifecycle Manager，这允许管理员为集群中的主机指定所需的ESXi版本和固件。将供应商硬件管理系统注册为vCenter Server扩展，这允许管理员使用vSphere Lifecycle Manager更新主机上的固件。供应商硬件管理系统还可以向vSphere Lifecycle Manager提供固件更新，因此无需单独从供应商网站下载。使用vSphere Lifecycle Manager运行硬件兼容性检查，验证新的软件和固件版本是否与vSAN硬件兼容性列表兼容。