相关试题
【单选题】
3GPP定义的5G核心网架构的接口中，UE与AMF的接口名称为? 答案：___
【单选题】
在NR系统中一个CCE由() 个REG组成 答案：___
【单选题】
用户面业务分离点在LTE的是 答案___
A. option3
B. option3A
C. option3x
D. option2
【单选题】
在5G的组网方式中，下列哪种属于独立组网() 答案___
A. Opti on7
B. Option2
C. Option3
D. Option3x
【单选题】
目前NSA组网主流采用哪种架构 答案___
A. Option 3x
B. Option 7
C. Option 7x
D. Option 3
【单选题】
我们通常将() Hz以下称为低频 答案___
A. 12G
B. 8G
C. 6G
D. 10G
【单选题】
以下哪个不是AMF的功能 答案___
A. 上行数据分类路由转发
B. 接入认证
C. AS安全控制
D. 注册区管理
【单选题】
根据3GPP空口协议栈，gNodeB可分 为CU和DU两部分。RRC和 ()上移到CU,其它下移到DU 答案___
A. RLC
B. PDCP
C. PHY
D. MAC
【单选题】
NR核心网中用于会话管理的模块是 答案___
A. AMF
B. UDM
C. SMF
D. PCF
【单选题】
RAN切分后，CU和DU之间的接口是 答案___
【单选题】
在NR系统中15Khz子载波支持的最大带宽是 答案___
A. 20Mbps
B. 50Mbps
C. 200Mbps
D. 100Mbps
【单选题】
我司NR产品CU/DU分离的协议层位置为: 答案___
A. PDCP层和RLC层之间
B. RLC层和MAC层之间
C. MAC层和PHY层之间
D. RRC层和PDCP层之间
【单选题】
只能在高频使用子载波间隔是 答案___
A. 30K
B. 120K
C. 60K
D. 15K
【单选题】
当前eMBB场景100M带宽下，5G低频的子载波数是 答案___
A. 1200
B. 3168
C. 3364
D. 3276
【单选题】
5G NR Sub6G低频3. 5GHz, eMBB链路预算中默认终端天线配置是: 答案___
A. 2T4R
B. 1T2R
C. 2T2R
D. 4T4R
【单选题】
以下那一条不是UPF的功能 答案___
A. 3GPP网络内跨CN信令传递
B. 上行数据分类路由转发
C. 数据网与外部PDU会话的互通
D. 数据包校验和用户面的策略规则执行
【单选题】
gnodeB与ng- enb之间的接口是 答案___
【单选题】
在5G的组网方式中，下列哪种属于独立组网 答案___
A. Option3
B. Option2
C. Option7
D. Option3x
【单选题】
用于测量PDCCH的DM-RS的天线端口是 答案___
A. 2000
B. 4000
C. 3000
D. 1000
【单选题】
关于5G Cloud RAN描述正确的是 答案___
A. CU处理非实时功能，采用通用处理器
B. Low-PHY部分移入AAU/RU,降低前传new CPRI带宽需求
C. 以上都对
D. DU专注实时处理，采用专用处理器
【多选题】
相比option3, option7组网有哪些缺点 答案___
A. 无法支持5GC引入的新业务
B. 需要推动5G到2G/3G网络的CSFB的语音回落流程
C. LTE需升级改造为eLTE,改动较大
D. 需要新建5GC，建网进度依赖于5GC产业成熟度
【多选题】
FR1频段支持哪些SCS 答案___
A. 60kHz
B. 30kHz
C. 120kHz
D. 15kHz
【多选题】
NR系统中下行物理信号有哪些 答案___
A. 辅同步信号(Secondary synchronization si gnal, SSS)
B. 信道状态信息参考信号(Channel -state information reference signal, CSI -RS)
C. 解调参考信号(Demodulation reference signals, DM-RS)
D. 相位跟踪参考信号(Phase-tracking reference signals, PT-RS)
E. 主同步信号(Primary synchronization signal, PSS)
【多选题】
NR系统中上行物理信号有哪些 答案___
A. 解调参考信号(Demodulation reference signals, DM-RS)
B. 相位跟踪参考信号(Phase tracking reference signals, PT-RS)
C. 探测参考信号(Sounding reference signal, SRS)
D. 信道状态信息参考信号(Channel -state information reference signal, CSI-RS)
【多选题】
5G有哪些关键应用场景 答案___
A. mMTC
B. URLLC
C. NB-IOT
D. eMBB
【多选题】
NR工作频段分为 答案___
A. FDD
B. SDL
C. SUL
D. TDD
【多选题】
ITU定义的5G场景有哪些? 答案___
A. mMTC
B. eMBB
C. URLLC
D. eMTC
【多选题】
下列哪些组网方式属于非独立组网方式 答案___
A. Option7x
B. Option3
C. Option3x
D. Option7
【多选题】
如下哪些架构是Non-Standal one组网 答案___
A. Option4
B. Option7
C. Option2
D. Option3
【多选题】
NR中FR1使用的下行参考信号包括() 答案___
A. PT-RS
B. DMRS
C. OCSI-RS
D. SSB-RS
【多选题】
Option2组网的优势有哪些 答案___
A. 引入5GC,提供5G新功能新业务
B. 团可快速部署，直接引入5G新网元，不需要对现网改造
C. 不影响现网2G/3G/4G用户
D. 对现有2G /3G/4G网络无影响
【多选题】
NSA中Sn释放会发生在如下哪些场景? 答案___
A. Sn变更
B. 离开Mn覆盖范围
C. 离开Sn覆盖范围
D. Mn切换
【多选题】
NR帧结构包含如下哪些元素 答案___
A. 参考子载波间隔
B. 纯下行符号slot数目
C. 上行符号数目
D. 配置周期
E. 下行符号数目
F. 纯上行符号slot数目
【多选题】
下列哪些是NSA组网的优势 答案___
A. NSA标准冻结早，产业更成熟，业务连续性更好
B. 对4G LTE网络无影响，建网一步到位
C. 5G按需投资，快速建网，投资回报更快
D. 5G建设和4G LTE强绑定，NSA到SA的过程需要无线网和核心网多次升级
【多选题】
URLLC主要关注哪些指标 答案___
A. 频谱效率
B. 可靠性
C. 时延
D. 连接密度
【多选题】
BWP具备哪些优点 答案___
A. 前向兼容，新技术可以在新的BWP中提供，保证系统的前向兼容性
B. 提高系统灵活性，每个BWP可采用不同的配置，系统根据业务需要切换合适的BWP,提高系统灵活性
C. 降低能耗，当 UE业务量较低或者没有业务时，UE可以切换到带宽较小的BWP上，降低能耗
【多选题】
5G波束管理分为哪几大过程 答案___
A. P2：只进行TRP发射波束扫描
B. P3：只进行UE接收波束扫描
C. 以上均不正确
D. P1：TRP发射波束扫描+ UE接收波束扫描
【多选题】
gNb具备如下哪些功能 答案___
A. 控制面的信息AMF路由选择
B. 无线资源管理功能:无线承载控制、无线接纳控制、移动性管理，上/ 下行链路资源动态分配(调度)
C. UE RRC_ INACTIVE状态支持
D. 用户平面数据UPF路由选择
【多选题】
RAN切分的好处有哪些 答案___
A. CU内的移动性可以在内部处理，减少核心网负荷
B. CU的覆盖范围大，CU下移动可以不换PDCP锚点，降低时延，为无维移动提供可能
C. 相对原有的一体化基站，移出部分CU功能到云端，有利于站点侧降低复杂度，节能降耗
D. CU能作为双连接的锚点(4/5G、 高低频)，由于部署在传输节点汇聚机房，可以节省传输带宽和降低时延
【判断题】
NR中终端可以同时在正常载波和SUL载波上进行业务。 答案
推荐试题
【多选题】
Which two storage configurations on the source server are unsupported with VMware Converter? (Choose two.)___
A. Linux LVM
B. software RAID
C. GPT/MBR hybrid disks
D. Windows basic volumes
E. Windows dynamic volumes
【多选题】
Which two statements about vCenter HA are correct? (Choose two.)___
A. ESXi 5.5 or later is required.
B. vCenter HA network latency between nodes must be less than 50 ms.
C. NFS datastore is supported.
D. It must be deployed on a 3
E. SXi host cluster with DRS enabled.
【多选题】
An attempt to delete NFS datastore from a ESXi host returns the error: Sysinfo error on operation returned the following status:< Busy> Which two statements could explain this failure? (Choose two.)___
A. NFS datastore is a part of Storage DRS Cluster.
B. NFS.VolumeRemountFrequency value is set to 30.
C. Storage I/O Control is enabled on NFS datastore.
D. NFS datastore has running or registered virtual machines.
【多选题】
An administrator finds that the Microsoft Exchange virtual machines are exhibiting network latency. What two in-guest changes can help decrease latency? (Choose two.)___
A. LRO
B. TSO
C. SR-IOV
D. PVRDMA
【多选题】
Which two types of iSCSI adapters require VMkernel networking configuration? (Choose two.)___
A. dependent hardware
B. in-guest
C. software
D. independent hardware
【多选题】
Which two statements are true for NFS v4.1 firewall behavior? (Choose two.)___
A. It closes port 2049.
B. It sets allowed. All flag to TRUE.
C. It sets allowed. All flag to FALSE.
D. It opens port 2049.
【多选题】
A vSphere Administrator attempts to enable Fault Tolerance for a virtual machine but receives the following error: Secondary VM could not be powered on as there are no compatible hosts that can accommodate it. What two options could cause this error? (Choose two.)___
A. The other ESXi host(s) are in Maintenance Mode.
B. Hardware virtualization is not enabled on the other ESXi host(s).
C. The other ESXi host(s) are in Quarantine Mode.
D. Hardware MMU is enabled on the other
E. SXi host(s).
【多选题】
Storage capabilities be populated in what two ways? (Choose two.)___
A. The administrator can use tags to describe capabilities.
B. Default capabilities are provided by vCenter Server.
C. Datastores can advertise their capabilities through VAAI.
D. Datastores can advertise their capabilities through VASA.
【多选题】
In network troubleshooting it is important to know what upstream switch the ESXi host is connected to. Which two features does ESXi provide to help identify the upstream switch? (Choose two.)___
A. Promiscuous mode
B. DPM
C. LLDP
D. CDP
【多选题】
Virtual Volumes supports which three VMware features? (Choose three.)___
A. Instant Clones
B. Distributed Resource Scheduler
C. Linked Clones
D. vMotion
E. Storage Distributed Resource Scheduler
【多选题】
vSphere DRS helps to balance virtual machines with available resources in a vSphere cluster. What three types of resources can be taken into account for balancing? (Choose three.)___
A. CPU
B. physical NIC saturation of an ESXi host
C. virtual NIC saturation of a virtual machine
D. RAM
E. storage latency
【多选题】
Which three design requirements must be satisfied to enable RAID-6 objects in a VMware vSAN cluster? (Choose three.)___
A. vSAN Advanced license or higher
B. vSAN stretched cluster
C. at least six hosts contributing storage
D. deduplication and compression
E. all flash configuration
【多选题】
When using "Cluster resource percentage" for host failover capacity in vSphere HA Admission Control, the total resource requirements are calculated from which two values? (Choose two.)___
A. Total vCPUs assigned to each VM.
B. Average CPU usage on each VM over time.
C. Memory reservations on each VM.
D. Total memory assigned to each VM.
E. Average active memory on each VM over time.
F. CPU reservations on each VM.
【多选题】
Which are four attributes of the Active vCenter HA node? (Choose four)___
A. It uses the vCenter HA network to communicate with the Witness node.
B. It constantly replicates vPostgres data with the Witness node.
C. It uses a public IP address for the management interface.
D. It runs the active vCenter Server Appliance instance.
E. It uses the vCenter HA network for replication of data to the Passive node.
F. It provides a quorum to protect against split-brain situations.
【多选题】
Which are two vCenter Server two-factor authentication methods? (Choose two.)___
A. RSA SecurID
B. Smart Card
C. SAML
D. Symantec VIP
【多选题】
An administrator is creating VMkernel adapters on an ESXi 6.5 host and wants to create separate VMkernel adapters for every type of traffic in the default TCP/IP stack. Which three types of traffic can be explicitly enabled on a separate VMkernel adapter? (Choose three.)___
A. Virtual SAN traffic
B. NFS traffic
C. vMotion traffic
D. vSphere HA traffic
E. Fault Tolerance logging traffic
【多选题】
When migrating a Windows vCenter Server 6.0 to the vCenter Server Appliance 6.5, which two will be migrated by default? (Choose two.)___
A. Local Windows OS users and groups
B. Configuration
C. Custom ports
D. FQDN
E. Historical and Performance data
【多选题】
Which three types of Content Libraries exist within vSphere 6.5? (Choose three.)___
A. Remote Content Library
B. Published Content Library
C. Local Content Library
D. Shared Content Library
E. Subscribed Content Library
【多选题】
An administrator cannot enable multi-processor Fault Tolerance (SMP-FT) for a virtual machine. Which are two possible causes for this? (Choose two.)___
A. The virtual machine is running on a vSAN datastore.
B. The Fault Tolerance network is using a 10Gbit uplink.
C. The virtual machine has 6 vCPUs assigned.
D. The virtual machine has a 1TB VMDK attached.
E. The virtual machine has snapshots present.
【多选题】
Which two statements are true for Predictive DRS? (Choose two.)___
A. It balances resource utilization for virtual machines with unpredictable utilization patterns.
B. It integrates DRS with vRealize Operations Manager to balance workloads for virtual machines before resource utilization spikes occur.
C. It balances resource utilization based on a threshold's algorithm that runs each night.
D. It determines the best placement and balance of virtual machines based on a threshold's algorithm that runs each night in vCenter Server 6.5 Database.
【多选题】
Which two situations could cause a virtual machine to appear with (orphaned) appended to its name? (Choose two.)___
A. if a host failover is unsuccessful
B. if a virtual machine was removed from vCenter Server's inventory
C. if a virtual machine was deployed from template, and the template has been deleted
D. if a virtual machine is unregistered directly on the host
【多选题】
Which three requirements are needed to apply RAID 5 or RAID 6 erasure coding on a vSAN 6.2 or 6.5 object? (Choose three.)___
A. on Disk Format 3.0
B. Hybrid vSAN
C. All Flash vSAN
D. vSAN Advanced License
E. Stretched Cluster Configurations
【多选题】
An administrator sees the following error in the log files: Which two events could be the source of the error message? (Choose two.)___
A. vCenter Server failure
B. VXLAN failure
C. Disk array failure
D. Network failure
E. ESXi host failure
【多选题】
An administrator is attempting to access an ESXi host via the DCUI but is unable to do so. Which could be two possible causes? (Choose two.)___
A. The host in Qhas no out-of-band management capability (i.e. iLO/iDRAC).
B. The SSH service is disabled on the host.
C. Strict lockdown mode is enabled on the host.
D. Normal lockdown mode is enabled and the administrator is a member of the
E. xception User list.
【多选题】
Which two permissions are required to migrate a virtual machine with Storage vMotion? (Choose two.)___
A. Network > Move Network
B. Virtual Machine > Inventory > Move
C. Resource > Migrate powered on virtual machine
D. Datastore > Allocate Space
【多选题】
Which are three supported storage requirements for vCenter Server HA? (Choose three.)___
A. NFS
B. RDM
C. vSAN
D. VMFS
E. JBOD
【多选题】
Which are the two network requirements for a VMware vSAN 6.5 cluster? (Choose two.)___
A. Multicast must be enabled on the physical switches and routers that handle vSAN traffic.
B. vSAN requires IPv6 only.
C. All hosts must have a dedicated 40GbE NIC.
D. The vSAN network supported IPv4 or IPv6.
E. vSAN requires IPv4 only.
【多选题】
Which three prerequisites must be in place prior to enabling secure boot for a virtual machine? (Choose three.)___
A. VirtualMachine.Config.Settings privileges
B. an encrypted USB drive
C. Virtual Hardware version 13 or later
D. Virtual Hardware version 12 or later
E. EFI firmware
【多选题】
A user is given the "Virtual machine user (sample)" role in a vSphere 6.x environment. Which three permissions would the user be able to perform? (Choose three.)___
A. Reset a virtual machine.
B. Power on a virtual machine.
C. Move a host into a cluster.
D. Configure CD media.
E. Migrate a virtual machine with Storage vMotion.
【多选题】
Which three are supported upgrade processes for ESXi host? (Choose three.)___
A. using vSphere Auto Deploy
B. using a TFTP server
C. using Update Manager
D. using an
E. SXCLI command
【多选题】
When enabling Storage DRS on a datastore cluster, which three components are enabled as a result? (Choose three.)___
A. Space load balancing among datastore within the datastore cluster.
B. Initial placement for virtual disks based on space and I/O workload.
C. I/O load balancing among datastores within the datastore cluster.
D. Queue Depth alerting on disks within the datastore cluster.
E. Data de-duplication within the datastore cluster.
【多选题】
What are two features introduced in Network I/O Control version 3? (Choose two.)___
A. Bandwidth reservation per traffic type
B. Network resource pools
C. CoS tagging
D. Bandwidth guarantee to virtual machines
【多选题】
Which two correct virtual machine advanced configuration parameters will accomplish this? (Choose two.)___
A. isolation.device.edit.disable = “FALSE”
B. isolation.device.edit.disable = “TRUE”
C. isolation.device.connectable.disable = “FALSE”
D. isolation.device.connectable.disable = “TRUE”
【多选题】
Which three statements are correct regarding booting an ESXi Host from Fibre Channel SAN? (Choose three.)___
A. Direct connect topology is supported.
B. Each host must have its own boot LUN.
C. ESXi hosts do not require local storage.
D. Multipathing to a boot LUN on an active-passive array is supported.
E. Hosts can share one common boot LUN.
【多选题】
Which two tasks should a vSphere administrator perform if the vmkernel log reports VMFS metadata errors? (Choose two.)___
A. contact VMware technical support
B. reformat the datastore
C. check the device with VOMA
D. ignore the messages
【多选题】
Which two statements are true for a vCenterServer user account that is used for vSphere Data Protection (VDP)? (Choose two.)___
A. The user account must be assigned with Administrator role.
B. The password for the user account cannot contain spaces.
C. The user account should be created in the Single Sign-On domain
D. The user account cannot inherit required permissions from a group role.
【多选题】
Which three storage protocols are supported by Virtual Volumes? (Choose three.)___
A. FCIP
B. FCoE
C. iSCSI
D. NFS v3
E. NFS v4
【多选题】
A vSphere administrator observes a CPU spike on one of the web servers (view the Exhibit.) Which two statements can describe the cause of this activity? (Choose two.)___
A. The network packet size is too large.
B. VMware Tools is not installed.
C. Disk latency is present on the datastore.
D. The network packet size is too small.
【多选题】
Which three operations can cause VMFS metadata updates? (Choose three.)___
A. Restarting a VM using the guest OS.
B. Launching a VM console.
C. Migrating a VM with vMotion.
D. Powering a VM on or off.
E. Expanding a VMFS datastore.
【多选题】
*What two services run on all nodes in a vCenter Server HA cluster? (Choose two.)___
A. vmware-vmon
B. vmware-vpostgres
C. vmare-rbd-watchdog
D. vmware-vcha
