刷题
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【多选题】
【多选题】CSCF是IMS 系统的呼叫控制核心,它主要包括:( )。
A. S-CSCF
B. P-CSCF
C. C-CSCF
D. I-CSCF
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答案
ABD
解析
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相关试题
【多选题】
【多选题】对于从eHRPD-LTE重选的相关参数的说明错误的有:( )。
A. ThreshServing:指eHRPD系统小区信号强度。只有当终端接收的eHRPD信号质量低于该门限时,才会去比较LTE系统的信号是否强于一定门限。
B. EARFCNPriortity:指的是LTE系统的优先级,设置范围0~255,建议设置比eHRPD系统小区的服务优先级高。
C. RxLevMinEUTRA:最小接收EUTRA信号强度,单位dBm,取值范围【0,96】,实际门限取值(-44-RxLevMinEUTRA)-dBm。
D. Serv_priority:指的是当前eHRPD系统小区的优先级,设置范围是1~7,设计时需要比LTE系统的优先级要低。
【多选题】
【多选题】上行PUCCH反馈的控制信令包括( )
A. QoS
B. PMI
C. CQI
D. RI
【多选题】
【多选题】S6a接口信令流程包括( )
A. 周期TA更新流程
B. 位置管理流程
C. 用户数据处理流程
D. 鉴权流程
【多选题】
【多选题】在初始E-RAB连接建立过程中,可能导致异常释放(从UE收到rrcConnectionSetup到rrcConnectionRelease消息之间不足百毫秒)的原因是( )
A. S1链路断链
B. 弱覆盖
C. 硬件故障
D. 参数设置不合理
【多选题】
【多选题】PNUSCH支持的调制方式为( )。
A. 64QAM
B. BPSK
C. QPSK
D. 16QAM
【多选题】
【多选题】NPRACH信道中CP的长度可以配置成( )。
A. 266.7 us
B. 5.2 us
C. 4.7 us
D. 66.7 us
【多选题】
【多选题】5G空口下行物理信道包括( )。
A. xPRACH
B. xPDSCH
C. xPBCH
D. ePBCH
【多选题】
【多选题】5G支持在( )上的RLM。
A. Scell
B. Spcell
C. Pscell
D. Pcell
【多选题】
【多选题】与PUSCH有关的上行参考信号有哪些?( )
A. SRS
B. DM-RS
C. PT-RS
D. CSI-RS
【多选题】
【多选题】EN-DC下可以建立哪些SRB ?( )
A. SRB3
B. SRB0
C. SRB1
D. SRB2
【多选题】
【多选题】EN-DC下哪些SRB支持被配置成Split SRB ?( )
A. SRB3
B. SRB0
C. SRB1
D. SRB2
【多选题】
【多选题】CDMA2000-1X前向用不同的( )区分不同的cell,反向用不同的( )区分不同的MS,同一个cell下或对于同一个MS用不同的( )区分不同的前,反向信道。( )。
A. 长PN码
B. Walsh码
C. 短PN码偏置
D. 长PN码偏置
E. 短PN码
【多选题】
【多选题】和传统的MSTP相比,IPRAN在哪些方面存在优势()。
A. 具有丰富的数据业务处理能力
B. 具有很强的可靠性和可维护性
C. 支持L3功能
D. 提供柔性管道,提高了带宽的利用率
【多选题】
【多选题】关于VLANs说法正确的两项是:( )
A. 一个VLAN是一组交换机,这些交换机表现的不连接
B. ?在以太网中VLANs用于防止环路
C. —个VLAN是一组属于同一广播域下的交换机端口
D. VLANs用来分开同一以太网连接下不同数据流
【多选题】
【多选题】室内分布系统主要由 ( )等有源器件组成。
A. 干放
B. 合路器
C. 直放站
D. RRU
【多选题】
【多选题】 影响无线覆盖的主要因素有( )
A. 内置电倾角和机械倾角
B. 天线水平半功率角和垂直半功率角
C. 天线的增益
D. 天线的挂高和方向
【多选题】
【多选题】在小区重选评估过程中,UE何时会删除专用信号提供的优先级?( )
A. UE执行切换
B. 根据NAS的请求执行PLMN选择
C. 专用优先级有效时间(T320)过期
D. UE进入RRC_CONNECTED状态
【多选题】
【多选题】PUSCH功率控制的闭环功控有( )。
A. 平均值
B. 最大值
C. 绝对值
D. 累积值
【多选题】
【多选题】RRC连接态的终端可以通过以下哪些方式回落到CDMA网络?( )
A. PS切换
B. CS切换
C. 基于测量的重定向
D. 盲重定向
【多选题】
【多选题】移动互联网业务感知测试APP主要测试哪几类业务?( )
A. 游戏类
B. 即时通讯类
C. 视频类
D. 网页浏览类
【多选题】
【多选题】LTE系统中A4事件涉及到的参数包括( )。
A. Ofn
B. Thresh
C. Off
D. Hys
E. Ocn
【多选题】
【多选题】低优先级小区重选判决准则:当同时满足以下哪些条件,UE重选至低优先级的异频小区?( )
A. 低优先级邻区的Snonservingcell,x>Threshx,low
B. 在一段时间(Treselection-EUTRA)内,Snonservingcell,x一直好于该阈值(Threshx,low)
C. Sservingcell<="" div="">
D. UE驻留在当前小区超过1s,高优先级和同优先级频率层上没有其它合适的小区
【多选题】
【多选题】CX接口用于CSCF与HSS之间的信息交互与传输,主要交互的信息包含:( )。
A. CSCF从HSS下载IMS用户接入鉴权所需的安全参数
B. HSS向CSCF传送IMS会话过滤签约数据
C. CSCF到HSS的路由信息查询
D. I-CSCF选择S-CSCF所需的必要信息
【多选题】
【多选题】eSRVCC组网中新增加了( )和( )逻辑网元作为本地信令/媒体锚点,因此切换过程中的中断时间缩短,性能得以优化。
A. ATGW
B. MRFC
C. MGCF
D. ATCF
【多选题】
【多选题】影响下行FTP下载速率的因素有( )。
A. 文件下载的进程数
B. FTP服务器的性能
C. 小区正在做业务的用户数量
D. UE所处无线环境的RSRP/SINR
【多选题】
【多选题】路测时发现小区间疑似天线接反可能的原因有:( )。
A. 如果使用了多通道智能天线,天线端口与馈线没有对应
B. BBU与RRU光纤接反
C. RRU与天线的跳线接反
D. PCI参数配错
【多选题】
【多选题】LTE网络规划的内容有哪些?( )
A. PCI规划
B. LAC规划
C. PRACH规划
D. TA和TAL规划
【多选题】
【多选题】单站点验证测试工程人员需要完成哪些工作任务。( )
A. 连接模式下的小区状态和业务连接情况
B. 确认核心网是否正常工作
C. 空闲模式下的小区状态
D. 检查各个小区的基本功能是否正常
【多选题】
【多选题】下列属于用户QoS属性参数的是:( )
A. 最小业务保证速率
B. 业务时延
C. 最大业务速率
D. 误包率
E. 用户优先级
【多选题】
【多选题】PA参数的取值可能值是( )
A. -3
B. -4.77
C. -1.77
D. 0
【多选题】
【多选题】对于切换区的位置和长度,说法正确的是( )。
A. 切换区的长度规划和覆盖场景无关。
B. 不要把切换区放在十字路口,高话务地区以及VIP服务区。
C. 切换区的位置应该尽量避免在拐角,因为拐角本身的阻挡会带来额外的传播损耗并造成信号的迅速衰减从而减小切换区的长度。
D. 对于切换区的位置和长度,应该在规划时就有初步的考虑。
【多选题】
【多选题】无线网络规划阶段,对无线参数进行初步的规划,主要包括:( )。
A. 邻区规划
B. 参数规划
C. 码资源规划
D. 频率规划
【多选题】
【多选题】A3和A5事件的判决条件都包含的参数有( )。
A. Off
B. Thresh
C. Ocn
D. Hys
【多选题】
【多选题】NB-IoT主要优点有哪些?( )
A. 超强覆盖
B. 超低成本
C. 超大连接
D. 超低功耗
【多选题】
【多选题】可以采用QPSK调制方式的信道有( )。
A. NPUSCH
B. NPHICH
C. NPUCCH
D. NPRACH
【多选题】
【多选题】PUSCH信道承载的信息包括( )。
A. 参考信号
B. 解调信号
C. 控制信息
D. 上行数据信息?
【多选题】
【多选题】5G 空中接口RRC子层的功能包括( )。
A. RRC连接控制
B. 测量报告配置
C. 移动性管理
D. 系统信息广播
【多选题】
【多选题】BWP切换有哪些方式?5G NR中SSB组成
A. Timer
B. RMSI
C. DCI
D. TCI
【多选题】
【多选题】以下属于5G网元SMF的功能是( )。
A. 会话管理
B. 认证,授权
C. 下行链路数据到达的通知
D. UE IP地址分配,管理
【多选题】
【多选题】关于5G RLM下面描述正确的是( )。
A. 所有资源都比Q_out差,就上报OOS
B. 所有资源都比Q_in差,就上报OOS
C. 至少有一个资源比Q_in好,就上报IS
D. 至少有一个资源比Q_out好,就上报IS
推荐试题
【单选题】
What can prevent Storage DRS from functioning on a datastore?___
A. The datastore is configured for Virtual Machine Swapfile location.
B. The datastore is shared across multiple datacenters.
C. The datastore is connected to a host that is running Storage I/O Control.
D. Storage DRS advanced option IgnoreAffinityRulesForMaintenance is set to 1.
【单选题】
When troubleshooting VMware vCenter Server issues, when logging level provides maximum detail?___
A. Verbose
B. Trivia
C. Info
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【单选题】
What new feature is introduced in NFS 4.1 on ESXi 6.5?___
A. IPv6
B. KRB5i
C. AUTH_SYS
D. Storage DRS
【单选题】
What configuration option would ensure that a virtual NUMA topology is defined on VMs having more than eight virtual CPUs?___
A. cupid.coresPerSocket
B. numa.vcpu.followcorespersocket
C. numa.vcpu.maxPerVirtualNode
D. numa.vcpu.min
【单选题】
What is the minimum disk space required to deploy vSphere Data Protection (VDP) with 8 TB configuration?___
A. 4 TB
B. 16 TB
C. 8 TB
D. 12 TB
【单选题】
What advanced option for vSphere HA defines a maximum number of reset attempts by VMCP for a virtual machine?___
A. das.maxterminates
B. das.isolationshutdowntimeout
C. das.maxresets
D. fdm.isolationpolicydelaysec
【单选题】
What vSphere technology enables the administrator to ensure consistent configuration at scale?___
A. PowerCLI
B. Host Profiles
C. esxcli
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【单选题】
Which port is used for vSphere HA agent-to-agent communication?___
A. 443
B. 8182
C. 22
D. 902
【单选题】
Which log file would assist in identifying an issue that occurred during the database export phase of a vCenter Server upgrade process?___
A. vcdb_import.out
B. export.json
C. export-upgrade-runner.log
D. vcdb_export.out
【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
【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
【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.
【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
【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.
【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.
【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
【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
【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
【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.
【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.
【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.
【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.
【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.
【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.
【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.
【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
【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
【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
【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.
【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
【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.
【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.
【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.
【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.
【多选题】
Which two features require the use of Host Profiles? (Choose two.)___
A. Host Customizations
B. shared storage
C. Auto
D. eploy
【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
【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
【多选题】
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.
【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.
【多选题】
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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