【填空题】
98.DC600V供电列车的网络不但能实现全列监控,还能实现全列___。___
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答案
集中控制
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102.使用___前,应先将表进行开路和短路测试,检查是否良好。___
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103.把发电机三个绕组的___接在一起,自三个始端引出三根相线向外送电,这种方式叫三相电源的星形连接。___
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108.三相感应电动机常用的起动方式有___起动和降压起动等两种。___
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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.___
A. 2n+2
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【单选题】
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?___
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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?___
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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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【单选题】
How can failback of a recovered virtual machine in vSphere Replication be performed?___
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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?___
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【单选题】
What availability mode does vCenter HA provide?___
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【单选题】
In which scenario will vSphere DRS balance resources when set to Fully Automated?___
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【单选题】
What VMware technology can be used to move physical servers to the vSphere infrastructure?___
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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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【单选题】
What is a potential downside of having more than four paths per datastore?___
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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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【单选题】
What advanced parameter defines a custom isolation IP address for a vSphere HA cluster?___
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【单选题】
Which method is supported for backing up the virtual machine that contains vCenter Server?___
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【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?___
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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
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【单选题】
Which guest operating system supports PVRDMA?___
A. Windows (32-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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【单选题】
The vSphere Data Protection performance analysis results in the “Conditionally Passed” status. What can cause this condition?___
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【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?___
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【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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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?___
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【单选题】
By default, how often is the vCenter vpx user password automatically changed?___
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【单选题】
Which metric in the Exhibit would identify high latency for a virtual machine operating system?___
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【单选题】
What VM Monitoring setting would ensure that the failure interval for a virtual machine is defined as 120 seconds?___
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【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?___
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【单选题】
What is the result of a “Consolidate” action on a virtual machine?___
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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?___
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【单选题】
What is the VMware-recommended best practice for Fibre Channel zoning?___
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【单选题】
How can a vSphere administrator ensure that a set of virtual machines run on different hosts in a DRS cluster?___
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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
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【单选题】
What tool can capture network traffic at the uplinks, or vSwitch, or virtual port levels?___
A. tcpdump-uw
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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
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D. Hardware Dependent iSCSI initiator