Bidirectional CHAP is support by which storage initiator?____答案

【单选题】

Bidirectional CHAP is support by which storage initiator?___

A. software FCoE HBA

B. Fibre Channel HBA

C. independent hardware iSCSI HBA

D. dependent hardware iSCSI HBA

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【单选题】

What is a pool of raw storage capacity that a storage system can provide to Virtual Volumes?___

A. protocol endpoint

B. storage container

C. storage provider

D. datastore

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【单选题】

vSphere 6.5 DRS is now Network-Aware. Based on network utilization, when will DRS balance VMs?___

A. DRS will balance VMs when a network resource pool is configured for VMs.

B. DRS will balance VMs when Network I/O Control is enabled.

C. DRS will place VMs on initial boot for hosts that have network utilization lower that the threshold.

D. DRS will vMotion VMs when network utilization is higher than the threshold on a particular host.

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【单选题】

A scripted upgrade of ESXi fails due to an incorrect parameter in the upgrade script. What file must the administrator modify to correct the problem?___

A. vmreconfig.pl

B. hostinfo.pl

C. ks.cfg

D. boot.cfg

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【单选题】

A VM folder contains VM1 and VM2. Group A has permission to power on virtual machines, defined on the VM folder and its children. Group B has permission to power off virtual machine VM2. If a user is a member of group A and B, what action can the user perform?___

A. Suspend VM2.

B. Power off VM1.

C. Power on and power off VM1.

D. Power on and power off VM2.

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【单选题】

The networking team has requested to have a dedicated network for iSCSI traffic. This task has been assigned to the vSphere Administrator. What is the VMware-recommended way to accomplish this?___

A. Configure Static Routes on each ESXi Server.

B. Configure the right subnet.

C. Create a custom IP Stack.

D. Define a dedicated gateway for the iSCSI vmkernel.

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【单选题】

To prevent possible failures or issues during a vSphere upgrade, which component should be upgraded first?___

A. ESXi Hosts

B. virtual machines

C. datastores

D. vCenter Server

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【单选题】

What is the command for updating an ESXi host?___

A. esxcli software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip

B. esxupdate software update –d”/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”

C. esxcli software update –d “/vmfs/volumes/Datastore/DirectoryName/PatchName.zip”

D. esxupdate software vib update –d /vmfs/volumes/Datastore/DirectoryName/PatchName.zip

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【单选题】

A vSphere Administrator would like to identify which physical NUMA node their virtual machine is currently residing on. What esxtop metric would provide this information?___

A. GST_ND[x]

B. OVD_ND[x]

C. NRMEM

D. NHN

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【单选题】

How can a vSphere administrator ensure that two virtual machines never run on the same datastore in a datastore cluster, while permitting the VMs to be load-balanced?___

A. Use an Intra-VM Anti-Affinity Rule.

B. Configure a storage DRS VM override.

C. Disable storage

D. RS for the VMs.

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【单选题】

What is the VMware-recommended way to move a physical adapter out of Network I/O Control’s scope?___

A. Set the teaming policy to “Route Based on Physical NIC Load.”

B. Add the vmnic to the Net.NetNiocAllowOverCommit parameter in Advanced System Settings.

C. Add the vmnic to the Net.IOControlPnicOptOut parameter in Advanced System Settings.

D. Move the vmnic to a different vmUplink port on the Distributed Switch.

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【单选题】

A VM folder contains VM1 and VM2. Group A has permission to power on virtual machines, defined on the VM folder and its children. Group B has permission to power off virtual machines, defined on the VM folder and its children. If a user is a member of Groups A and B, what will be the user’s effective permission on VM1 and VM2?___

A. Power on

B. Power off.

C. Power on and Power off.

D. Reset.

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【单选题】

Group 1 is granted console interaction on a VM folder. User 1 is granted no console interaction on the same VM folder. What will be the outcome if User 1 tries to access the console of a virtual machine?___

A. User 1 will not be able to access the virtual machines in the VM folder.

B. User 1 will not have access to the virtual machine console.

C. User 1 will have access to the virtual machine console.

D. User 1 will have console access only via the vSphere Web Client.

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【单选题】

Which statement is true regarding the use of VMFS3 datastores with vSphere 6.5?___

A. VMFS3 datastores can be used but not created.

B. VMFS3 datastores can be neither used nor created.

C. VMFS3 datastores will be present but unmounted.

D. VMFS3 datastores can be created and used.

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【单选题】

In the Exhibit, each VM has a 1GHz non-expandable reservation. If all VMs are powered on in sequence, what would be the outcome?___

A. VM4 cannot be powered on.

B. VM5 cannot be powered on.

C. VM6 cannot be powered on.

D. VM3 cannot be powered on.

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【单选题】

vSphere 6.5 introduced MAClearning capabilities for VMware’s virtual switches. What three benefits will it provide? (Choose three.)___

A. Reduced memory consumption.

B. Reduced consumption of extra CPU cycles.

C. Increased network throughput.

D. Prevent packet flooding inside the vSwitch.

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【单选题】

What is the default pathing policy for most active-active arrays?___

A. Fixed

B. Most Recently Used

C. Dynamic

D. isk Morroring

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【单选题】

Which command will show the iSCSI sessions on a ESXi 6.5 host?___

A. esxcli storage iscsi session get

B. esxcli iscsi session get

C. esxcli storage iscsi session

D. esxcli iscsi session list

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【单选题】

Which of the following is not a parameter for traffic filtering or marking?___

A. virtual port ID

B. Protocol

C. Traffic Direction

D. DSCP value

E. Traffic redirection

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【单选题】

A vSphere administrator wants to enable a virtual machine with Secure Boot, but in VM setting, Secure Boot option was not found under Boot Options. What could be the cause?___

A. The virtual hardware is not compatible.

B. The virtual machine has missing drivers.

C. The virtual machine OS does not support secure boot.

D. VMware Tools is not upgraded.

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【单选题】

A virtual machine is connected on a distributed port group where the average bandwidth configured in the traffic shaping policy is 100 Mbps. The VM network adapter is configured with a reservation of 200 Mbps. What is the VM’s effective bandwidth?___

A. 200 Mbps

B. 100 Mbps

C. 150 Mbps

D. 400 Mbps

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【多选题】

What are two reasons why a datastore in a Storage DRS cluster cannot enter maintenance mode?(Choose two.)___

A. Storage latency is too high to allow Storage DRS initiate Storage vMotion.

B. Storage DRS is configured for a VMFS3 datastore.

C. Storage

D. RS is disabled on the virtual disk.

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【多选题】

What two methods are used to configure VMware vSphere Storage I/O Control shares and limits? (Choose two.)___

A. Assign shares and limits to VM virtual disks.

B. Assign shares and limits to datastores.

C. Assign shares and limits to Storage (DRS) clusters.

D. Assign shares and limits using VM storage policies.

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【多选题】

ESXi 6.5 introduces VMFS6, which supports both 512e and 512n devices. What three configurations are supported when using these devices? (Choose three.) ___

A. Hosts with both 512e and 512n devices.

B. Storage vMotion between both 512e and 512n devices.

C. Datastore Extents spanned between both 512e and 512n devices.

D. Storage DRS clusters containing only both 512e and 512n devices.

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【多选题】

A vSphere Administrator observes that the Primary VM configured with Fault Tolerance is executing slowly. After further investigation, it is determined that the Secondary VM is on an overcommitted ESXi host. What two methods will correct the problem? (Choose two.)___

A. Use Storage vMotion to migrate the Secondary VM to another datastore.

B. Use vMotion to migrate the Secondary VM to a different ESXi host.

C. Configure a CPU limit on the Primary VM which will also apply to the Secondary VM.

D. Turn off and turn on FT in order to recreate the Secondary VM on a different datastore.

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Which two features require the use of Host Profiles? (Choose two.)___

A. Host Customizations

B. shared storage

C. Auto

D. eploy

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【多选题】

What three processes on the vCenter Server Appliance (VCSA) does“vmware-watchdog monitor? (Choose three.) ___

A. vmware-eam

B. vmcad

C. vmware-vpostgres

D. vpxd

E. vsan-health

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What three processes on the vCenter Server Appliance (VCSA) does“vmware-watchdog monitor? (Choose three.) ___

A. vmware-eam

B. vmcad

C. vmware-vpostgres

D. vpxd

E. vsan-health

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Which two statements correctly describe VM-Host affinity rules? (Choose two.) ___

A. When there is more than one VM-Host affinity rule in a vSphere DRS cluster, the rules are applied equally.

B. After creating a VM-Host affinity rule, its ability to function in relation to other rules is predetermined.

C. When there is more than one VM-Host affinity rule in a vSphere

D. RS cluster, the rules will be ranked.

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【多选题】

An administrator wants to enable proactive HA by moving virtual machines automatically if a hardware alert is triggered. What are the three required settings? (Choose three.)___

A. Set vSphere DRS Automation to Partially Automated.

B. Turn on Proactive HA.

C. Set the Proactive HA Automation Level to Manual.

D. Set the Proactive HA Automation Level to Automated.

E. Turn on vSphere HA and vSphere DRS.

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If vCenter Server 5.5 installation has one or more services deployed remotely, which three services are relocated to vCenter Server 6.5 on upgrade? (Choose three.)___

A. vCenter Inventory Services

B. vSphere Authentication Proxy

C. vSphere Web Client

D. vSphere

E. SXi Dump Collector

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【多选题】

What two debugging levels can a virtual machine be configured to? (Choose two.)___

A. Verbose

B. Debugging

C. Statistics

D. Trivia

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【多选题】

What are three benefits of using a few large-capacity LUNs instead of many small-capacity LUNs? (Choose three.) ___

A. Better performance because there is less contention for a single volume.

B. More flexibility for resizing virtual disks.

C. Less wasted storage space.

D. More flexibility to create virtual machines without adding new LUNs.

E. Fewer VMFS datastores to manage.

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【多选题】

Which two configurable options are available in Boot Options for a virtual machine? (Choose two.)___

A. Tools Upgrades

B. Encryption

C. Firmware

D. Force BIOS setup

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Which three VMware-recommended best practices should an administrator follow before upgrading to vSphere 6.5? (Choose three.)___

A. Disconnect ESXi host from vCenter.

B. VMware Tools are installed in the virtual machine.

C. Ensure that the system hardware complies with ESXi requirements.

D. Back up the host.

E. Check the interoperability of any other software integrated with vSphere.

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What are two requirements to enable EVC in vSphere DRS cluster? (Choose two.)___

A. CPUs must be from the same vendor.

B. EVC must use the lowest possible baseline supported by the hardware.

C. CPUs must be in the same family and of the same speed.

D. No VMs may be running in the cluster.

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【多选题】

What three conditions could result in VMware Flash Read Cache being unable to claim a disk? (Choose three.)___

A. The disk is not listed in the VMware hardware compatibility guide.

B. The disk is not detected as an SSD.

C. The disk is not detected as local.

D. The disk is in use by VMFs.

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Boot from SAN is supported on which three storage technologies? (Choose three.)___

A. VMware vSAN

B. FCoE

C. NFS 4.1

D. iSCSI

E. FC

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【多选题】

Which two components are part of storage I/O multipathing on ESXi? (Choose two.)___

A. SATP

B. VASA

C. PSP

D. VAAI

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【多选题】

Which two statements are true about Highly Available vSphere Auto Deploy infrastructure? (Choose two.)___

A. It helps prevent data loss.

B. It is a prerequisite for using vSphere Auto Deploy with stateful install.

C. It requires two or more Auto

D. eploy servers.

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【多选题】

The virtual machine log rotation size can be changed for all VMs by which two interfaces? (Choose two.)___

A. PowerCLI

B. vSphere Web Client

C. ESXi host client

D. esxcli

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在2015年9月的RAN #69会议上经过激烈的PK，（）和（）的融合产物胜出，这就是NB-IoT。

A. NB-LTE

B. NB-CIoT

C. LTE-M

D. EC-GSM

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通过现场测试可以发现（）等问题。

A. 基站过载

B. 覆盖不足

C. 导频污染

D. 越区覆盖

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B. 是天线在其最大辐射方向的增益。

C. dBi 是天线增益相对于半波振子的参考值

D. dBd=dBi+2.15

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现有一张数据业务核心网，当终端用户数量增加时，PGW突然开始拒绝会话请求以下哪两项可以用来定位此问题？( )

A. 安全管理

B. 性能管理

C. 故障管理

D. 软件管理

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单站点验证测试网优人员需要完成哪些工作任务。（）

A. 数据业务接入功能测试

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C. 客户指定的验证测试，例如天线分集检查

D. 一些特殊场覆盖场景下，需要步测完成单站验证测试

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切换分为（）．（）．（）等3种阶段。

A. 切换准备

B. 测量报告

C. 切换执行

D. 切换完成

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NB-IoT的PCI规划要遵循以下哪些原则？（）

A. 邻区导频位置尽量错开

B. 同一小区所有的邻区列表中不能有相同的PCI

C. 即相邻的两个小区的PCI模3后余数不能相同

D. 即相邻的两个小区的PCI模4后余数不能相同

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TDD与FDD的差别（）

A. 帧结构差异：FDD．TDD帧结构不同?

B. 多址方式差异：FDD．TDD多址方式不同?

C. 带宽差异：FDD．TDD支持的带宽不同

D. 双工模式差异：FDD．TDD双工方式不同

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EUTRAN内切换包括（）。

A. eNodeB内的切换

B. 基于S1接口的切换

C. WCDMA的切换

D. 基于X2接口的切换

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一旦UE接收到时间提前命令，下列哪些信道将会调整提前发送时刻( )。

A. PUSCH

B. PUCCH

C. SRS

D. DMRS

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UE附着获取IP地址的方式有哪些？( )

A. 通过DHCPv6方式获取

B. 通过DHCPv4方式获取

C. 通过DHCPv8方式获取

D. 从AttachAccept消息中获取

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以下哪种情况一定会使直放站干扰基站（）。

A. 上行输出噪声电平过高

B. 自激

C. 下行交调产物串入上行

D. 室内分布系统天线过多

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在Google Earth中创建的点,线可以另存为哪种格式的文件？（）

A. KML

B. TXT

C. TAB

D. KMZ

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P-CSCF 发现过程的机制包括( )。

A. DHCP 方式

B. Attach 方式

C. 动态配置在 UE 中

D. 静态配置在 UE 中

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【多选题】

IMS系统中用于与其他网络互通的网元有( )。

A. BGCF

B. MGCF

C. I-BCF

D. IM MGW

E. PDF

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【多选题】

NB-IOT中支持3个SRB，分别是（）。

A. SRB1

B. SRB0

C. SRB1bis

D. SRB2

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5G中CCE聚合等级包括（）。

A. 2

B. 1

C. 8

D. 16

E. 4

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以下哪些是RRC建立原因？( )

A. HighPriorityAccess

B. MT-access

C. MO-data

D. MO-sigaling

E. emergency

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关于S5接口以下哪些表述是正确的？( )

A. SGW和PGW之间可以采用GTP_C协议

B. SGW和PGW之间的接口

C. SGW负责为UE分配IP地址

D. SGW和PGW之间只支持GTP隧道协议

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CDMA系统通过软切换可以提高系统质量，体现在：（）

A. 降低掉话率

B. 改善话音质量

C. 控制手机干扰

D. 改善小区覆盖

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直放站中的关键技术有（）。

A. 增益,功率控制技术

B. 低噪放电路技术

C. 收发双工技术

D. RAKE接收技术

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【多选题】

单站验证测试过程中，发现小区之间切换不及时，下列哪种解决办法是错误的？( )

A. 增大切换时延

B. CIO变小

C. 增大切换门限

D. CIO变大

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针对弱覆盖导致的初始E-RAB连接建立失败，可能的调整措施包括（）

A. 调整对应小区的RS Power

B. 调整天线的方位角

C. 调整对应小区的各信道功率参数

D. 调整天线的下倾角

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【多选题】

5G的含义包括：无所不在,超宽带,（）的无线接入。

A. 高可靠

B. 低延时

C. 高可信

D. 高密度

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【多选题】

CDMA系统中，切换失败的原因包括（）。

A. 目标小区导频覆盖和业务信道覆盖不一致

B. 目标小区资源不可用

C. 声码器速率不匹配

D. 制定小区不存在

E. 恢复到原信道失败

F. 切换过程超时

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【多选题】

衰减器的主要用途是（）。

A. 改变相位

B. 吸收射频功率

C. 调整电路中信号的大小

D. 改善阻抗匹配

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【多选题】

逻辑上所有的交换机都由（）和（）两部分组成。

A. 数据转发逻辑

B. 输入/输出接口

C. 交换模块

D. MAC地址表

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【多选题】

移动TDDLTE的F频段小区上行干扰源可能来自（）

A. 联通或电信LTE信号干扰

B. 邻小区下终端的上行信号干扰

C. 邻近存在时钟故障的LTE小区干扰

D. 共站的GSM900谐波或DCS1800互调杂散干扰

E. 共站的TDS互调干扰

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【多选题】

跟踪区的设计原则包括：()。

A. 对于LTE的接入网和核心网保持相同的跟踪区域的概念

B. 在LTE系统中应尽量减少因位置改变而引起的位置更新信令

C. 当UE处于空闲状态时，核心网能够知道UE所在的跟踪区

D. 当处于空闲状态的UE需要被寻呼时，必须在UE所注册的跟踪区的所有小区进行寻呼

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【多选题】

以下哪些QCI值的承载是默认承载？（）

A. QIC=1

B. QCI=9

C. QCI=2

D. QCI=5

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【多选题】

VOLTE接通率为成功完成呼叫次数/终端发起呼叫总数。每次通话中，主叫UE发送第一条（）后收到网络侧下发的（）消息为成功完成呼叫。

A. SIPINVITE

B. SIP180Ring

C. PRACK200

D. SIP200OK

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【多选题】

LTE下行采用了哪些多天线技术？()。

A. SFBC

B. MU-MIMO

C. FSTD

D. 波束赋形

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【多选题】

影响小区平均吞吐率的因素（）。

A. 系统带宽：系统的不同带宽决定了系统的总RB数

B. 本小区负载：直接影响本小区可使用的RB数

C. 数据信道可用带宽：公共信道的开销进一步决定了用户可以实际使用的资源，其中下行主要包括PDCCH和系统消息，上行主要包括PUCCH，SRS，PRACH

D. 邻区负载：DL/UL负载直接影响本小区平吞吐率

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【多选题】

LTE支持两种RRC状态（）

A. RRC_IDLE

B. RRC_ConnectionRequest

C. RRC_CONNECTED

D. RRC_Disconnect

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【多选题】

NB-IoT系统中，包含的无线承载有（）。

A. SRB0

B. SRB1bis

C. SRB1

D. SRB2

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【多选题】

NB-IOT支持DCI模式有（）。

A. FormatN0

B. FormatN3

C. FormatN1

D. FormatN2

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【多选题】

OFDMnumerology是OFDM系统的基础参数集合，包含（）。

A. 子载波间隔

B. 系统带宽

C. 循环前缀长度

D. TTI长度

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【多选题】

CDMA20001X系统反向功控包括：（）

A. 开环功控

B. 精确功控

C. 闭环功控

D. 外环功控

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【多选题】

CDMA20001X支持（）帧长。

A. 20ms

B. 80ms

C. 40ms

D. 60ms

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【多选题】

手机发起位置登记流程可能基于以下（）情况。

A. 基于覆盖

B. 基于时间

C. 基于位置

D. 开关机

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