【判断题】
为了分离同一根光纤上多个用户的来去方向的信号，采用以下两种复用技术：上行数据流采用广播技术；下行数据流采用TDMA技术。
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相关试题
【判断题】
为了验证其是否符合服务等级协议（SLA）要求，运营商经常使用称作RFC 2744的标准进行全套测试。
【判断题】
维护人员判断故障原因，如在职责范围内的应在规定时限内修复。如不在职责范围内（上端设备或出光缆问题），必须在第一时间电话通知工程维护部门处理，并同用户进行沟通解释，说明目前存在的问题，及下一步措施，取得客户的感知认同
【判断题】
维护中，不同型号的SDH线路板板是可以互换的。
【判断题】
尾纤捆扎后，余纤盘放时，盘纤半径为3cm；
【判断题】
我国7号信令网是两层架构，采用双平面结构。
【判断题】
我们的时钟同步网信号是通过SDH设备传递的，映射过程会Y时钟性能产生影响。
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无输入信号上光路传输，光路上传送的是AIS信号。
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误码率的大小由通路的系统特性和信道质量决定。
【判断题】
误码是指经接收、判决、再生后，数字码流中的某些比特发生了差N。
【判断题】
先抢通，后抢修”原则是网络故障处理总的指导原则
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相同型号的ONU之间更换时，需在7342 GPON设备上更改相应的序列号。
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协议转换器E1的接口编码是HDB3，阻抗是120欧姆
【判断题】
协议转换器是把光端机的同步信号应用的某种协议转换为以太或者其他路由器或者交换机可以接受的协议的一个设备。
【判断题】
协转上只有PWR和LINK灯亮时，表明设备工作正常。
【判断题】
新版本补丁的实施时，随工人员必须在软件版本升级、补丁加载实施当天15:00以前，发布公告，通报开始时间、预计结束时间、 影响业务时长、可能影响业务、可能影响地区等要素。
【判断题】
信号夹钳适用于给管道或电缆施加信号而无需中断服务，而且可以减小感应到其它管线的信号
【判断题】
信令链路是连接节点的数据链路，在七号信令网中是速率为64Kbps的数字链路。
【判断题】
修改网管系统中的SNMP模板会Y已经添加到网管中的设备造成影响
【判断题】
虚拟网络是建立在局域网交换机或ATM交换机之上的，它以软件方式来实现逻辑工作组的划分与管理，逻辑工作组的结点组成不受物理位置的限制。
【判断题】
巡检的项目都要拍下来，并把巡检的照片传到资料服务器上。巡检过程中不合格的都要拍照，并把整改后的拍照纪录，以做证明。照片的分辨率不易过高，保持每张设备照片在100K以内，环境照片在200K以内
【判断题】
业务的1+1保护方式比1：1方式倒换速度要快，但信道利用率较低。
【判断题】
业务开通交付报告的内容包括：项目概述、网络拓扑，业务交付测试报告、电路清单、设备清单、服务承诺、故障申告流程等内容。
【判断题】
业务开通时限与同一地市同一客户的接入点数量无关。
【判断题】
一般跨省集团客户的总部或中心点单端核心汇聚电路（如CPOS电路等）业务保障等级为ＡＡ级。
【判断题】
一般来说，有高阶误码则会有低阶误码,反之，有低阶误码不一定有高阶误码。
【判断题】
一个Ｃ类地址的掩码是255.255.255.240，则该网段上可用的主机数最多是1６个
【判断题】
一个Ｃ类网段，最多可用划分128个子网
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一个VC-4时隙包含3个VC-3时隙, 可以容纳4个34M信号。
【判断题】
一个路由区可以包含多个小区，一个小区可以属于两个路由区。
【判断题】
一个主机的ARP高速缓存一旦创建，则它永远工作良好。
【判断题】
一根光纤只完成一个方向光信号的传输，反向光信号的传输由另一根光纤来完成，因此同一波长在两个方向上不可以重复利用。
【判断题】
一块EXNT-A的板卡最大可以提供22GE的接口带宽。
【判断题】
一台路由器就可以是一个网络级的防火墙。
【判断题】
一致路由，从业务的角度来描述即为双向业务。
【判断题】
移动公司提供给集团客户的网络质量指标要求只与业务保障等级有关而与客户服务等级无关。
【判断题】
移动集团互联网提供的带宽主要有2M、8M、100M。
推荐试题
【多选题】
Which two statements are true regarding Auto Deploy in version 6.5? (Choose two.)___
A. Auto Deploy can be configured and managed via PowerCLI.
B. Auto Deploy can be configured and managed via the vSphere Client.
C. Auto
D. eploy can be configured and managed via the vSphere Web Client.
【多选题】
What three options can improve network performance for a virtual machine? (Choose three.)___
A. MLD
B. TSO
C. NetFlow
D. LRO
E. SR-IOV
【多选题】
Which two storage technologies are supported for MSCS? (Choose two.)___
A. NFS
B. VAAI
C. iSCSI
D. FC
【多选题】
When upgrading a VMware vSAN cluster to version 6.5, which two tasks must be completed to comply with upgrade requirements and VMware-recommended best practices? (Choose two.)___
A. Use RVC to upgrade the hosts.
B. Use the latest available ESXi version.
C. Back up all VMs.
D. Use only the “Full data migration” maintenance mode option.
【多选题】
What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)___
A. Support for 4k native disks
B. Support for 512e disks
C. GPT storage device partitioning
D. Automatic space reclamation
【多选题】
Which two statements describe why a vSphere DRS cluster would report load imbalance? (Choose two.)___
A. The configured migration threshold is too high.
B. The configured migration threshold is too low.
C. DRS is configured for Partially Automated.
D. Enhanced vMotion Compatibility (EVC) is enabled.
【多选题】
A vSphere Administrator must ensure that vCenter Server service is running in a domain user account rather than Local System Account. To accomplish this, the user account should have which two permissions? (Choose two.)___
A. Log on as a service.
B. Act as part of the operating system.
C. Log on as a batch job.
D. Log on locally.
【多选题】
A virtual machine fails to power on after being deployed from a template. What two remediation steps could correct this issue? (Choose two.)___
A. Increase CPU reservation
B. Decrease memory reservation
C. Increase memory reservation
D. Increase datastore capacity
E. Decrease CPU reservation
【多选题】
Which three directories are available under the vcsa-cli-installer folder of the vCenter Server Appliance installation media? (Choose three.)___
A. \mac
B. \ovftool
C. \migration-assistant
D. \win32
E. \lin64
【多选题】
What are three considerations when booting ESXihost from SAN software FCoE? (Choose three.)___
A. The VMware_FCoE_vSwitch that the installer automatically created cannot be changed.
B. Boot LUN cannot be shared with other hosts even on shared storage.
C. Multipathing is not supported at pre-boot.
D. Software FCoE boot configuration cannot be changed from within
E. SXi.
【多选题】
Which two choices are applicable to vSphere Availability? (Choose two.)___
A. Heartbeat Datastores
B. VM Startup/Shutdoown
C. Power Management
D. Admission Control
【多选题】
A user is a member of groups A and B. -VM10 and VM20 are in VM Folder. -Group A is assigned permission “Read-only” on VM Folder. What two configurations will allow the user to edit the settings for only VM10? (Choose two.)___
A. Assign group B permission “virtual machine power user” to VM10.
B. Assign group B permission “virtual machine console user” to VM10.
C. Assign group A permission “virtual machine console user” to VM10.
D. Assign group A permission “virtual machine power user” to VM10.
【多选题】
Which two new vSphere 6.5 features enable an Administrator to locate configuration options when creating or editing host profiles more easily than in previous versions? (Choose two.)___
A. Add the configuration option to favorites.
B. Navigate the option tree.
C. Search for the configuration option.
D. Copy the configuration option from a different profile.
【多选题】
What are the two valid storage controller types for VMs on ESXi 6.5? (Choose two.)___
A. FCoE
B. SATA
C. NVMe
D. iSCSI
【多选题】
Which two options can optimize conversion with VMware Converter? (Choose two.)___
A. Disable real-time antivirus scanners.
B. Remove the source from Active Directory.
C. Remove third-party device drivers.
D. Exclude diagnostic partitions from conversion.
E. Disable Volume Shadow Copy (VSS).
【多选题】
vSphere Availability considers which two factors for virtual machine restarts? (Choose two.)___
A. Host Isolation Response
B. file accessibility
C. NUMA node size
D. resource reservations
【多选题】
Which two virtual NICs support Wake-on-Lan to resume a virtual machine that is in standby mode? (Choose two)___
A. Flexible
B. E1000E
C. E1000
D. vmxnet 3
【多选题】
Which two logs should be examined to troubleshoot a Windows vCenter Server upgrade failure? (Choose two.)___
A. vminst.log
B. vim-um-msi.log
C. firstboot.log
D. pkgmgr.log
【多选题】
Which are two supported storage primitives for VAAI NAS? (Choose two.)___
A. Full File Clone
B. Reserve Space
C. hardware assisted locking
D. block zeroing
【多选题】
Which two parameters must be configured for Windows in-guest disk mirroring? (Choose two.)___
A. scsi#.returnNoConnectDuringAPD = “FALSE”
B. scsi#.terminateVMOnPDL = “TRUE”
C. scsi#.returnBusyOnNoConnectStatus = “FALSE”
D. scsi#.returnNoConnectDuringAPD = “TRUE”
【多选题】
Which two items are required to enable NPIV in a virtual machine? (Choose two.)___
A. use of physical RDMs
B. physical HBA support
C. use of virtual disks
D. hardware version 11 or higher
【多选题】
A vSphere Administrator has VM Component Protection (VMCP) enabled, but the VM was not restarted when one of the VMFS datastores experienced an All Paths Down (APD) failure. What two scenarios would explain why the virtual machine was not restarted? (Choose two.)___
A. VM Monitoring is required in order for VMCP to failover during an APD event.
B. VMware Tools is not installed on the guest operating system for the VM.
C. Insufficient Capacity is available on the failover ESXi hosts.
D. The APD failure was corrected before the VM could be restarted.
【多选题】
What are two requirements in order to restore a Resource Pool Tree from a snapshot? (Choose two.)___
A. vSphere DRS must be turned on.
B. A restore can only be performed on a vSphere DRS cluster within the original vCenter Server.
C. vSphere
D. RS must be turned off.
【多选题】
Which three vSphere features are compatible with vSphere Replication? (Choose three.)___
A. vSphere High Availability
B. vSphere Fault Tolerance
C. vSphere Storage
D. RS
【多选题】
What two VMware Remote Console Options can be defined in the virtual machine settings? (Choose two.)___
A. Boot Delay
B. Maximum number of sessions
C. Guest OS lock
D. Total video memory
【多选题】
VMware Converter can import a powered off virtual machine from which two virtual machine platforms?(Choose two.)___
A. Microsoft Hyper-V
B. Citrix Xen
C. VMware Workstation
D. Linux with KVM
【多选题】
Which two options allow storage space reclamation? (Choose two.)___
A. Use VMFS6 datastores.
B. Use esxcli storage vmfs unmap.
C. Use the SAN console (management tool).
D. Use the vSphere Web Client.
【多选题】
An administrator must reprovision 25 hosts with a new image profile that he has created. Which two methods can the administrator use to change the image profile? (Choose two.)___
A. From the vSphere Web client home page, select the Deploy Rules tab in the Auto Deploy section.
B. Run the Copy-Deploy Rule and specify the Replace Item parameter with Power CLI.
C. From the vSphere Web client home page, select the Assign Rules tab in the Auto
D. eploy section.
【多选题】
What are three parameters for traffic filtering or marking? (Choose three.)___
A. Protocol
B. Traffic Direction
C. DSCP value
D. virtual Port ID
【多选题】
The vSphere administrator must change the path selection policy (PSP) to comply with best practices. Which two interfaces can be used to change the PSP? (Choose two.)___
A. ESXi shell
B. vSphere Client
C. ESXi host client
D. vSphere Web Client
【多选题】
In what two ways can Storage DRS load balance virtual machines? (Choose two.)___
A. anti-affinity rules
B. virtual storage controller
C. guest OS family
D. I/O latency
【多选题】
What two reasons can explain why a host cannot be removed from a vSphere Distributed Switch? (Choose two.)___
A. There are virtual machine network adapters connected to the switch.
B. There are blocked ports on the switch.
C. There are LACP LAGs configured on the switch.
D. There are VMkernel network adapters connected to the switch.
【多选题】
Which three requirements are true for the vCenter Server HA network? (Choose three.)___
A. Network latency between all nodes must be less than 10 milliseconds.
B. IP addresses for all nodes must be static.
C. HA network IP addresses for all nodes can be on different subnets.
D. IP addresses must be on the same network as the management network.
E. A default gateway must be configured.
【多选题】
Which two statements correctly describe Normal Lockdown Mode? (Choose two.)___
A. ESXi Shell and SSH services are independent of lockdown mode.
B. In normal lockdown mode the DCUI service is stopped.
C. ESXi Shell and SSH services are dependent of lockdown mode and cannot be configured.
D. In normal lockdown mode the DCUI service is running.
【多选题】
The Health check feature in the vSphere Distributed Switch helps troubleshoot network connectivity. What three checks does this feature perform? (Choose three.)___
A. Network Utilization
B. MTU
C. Teaming and Failover
D. VLAN
【多选题】
What are the three types of nodes in a vCenterServer HA cluster? (Choose three.)___
A. Master
B. Replica
C. Witness
D. Active
E. Passive
【多选题】
What are two consequences of turning off vSphere DRS on a cluster? (Choose two.)___
A. vMotion capability will be lost.
B. Resource pools will be lost.
C. vApps will be lost.
D. Affinity rules will be lost.
【多选题】
Which two protocols can be used to back up vCenter Server Appliance Instance? (Choose two.)___
A. iSCSI
B. HTTPS
C. FTP
D. NFS
【多选题】
What are two requirements to enable EVC in a vSphere DRS cluster? (Choose two.)___
A. CPU must be in the same family and of the same speed.
B. CPUs must be from the same vendor.
C. EVC must use the lowest possible baseline supported by the hardware.
D. No VMs may be running in the cluster.
【多选题】
In Advanced settings on a vSphere host, Security.Password Quality Control set as retry=3 min=disabled, disabled, disabled, 7, 7 . Which two passwords are valid? (Choose two.)___
A. xQaT3#A
B. P@ssw0rd
C. xQaTEh2
D. Xqat3h!
E. xQaTEhb!
