【多选题】
计算机网络互连主要方式有___。
A. 局域网到局域网
B. 局域网到广域网
C. 广域网到广域网
D. 局域网通过广域网
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相关试题
【多选题】
公安网上明令禁止的违规行为包括___。
A. 一机两用
B. 非公安业务论坛BBS
C. 聊天室
D. 游戏网站
【多选题】
计算机病毒的特点具有___。
A. 潜伏性
B. 安全性
C. 传播性
D. 破坏性
【多选题】
计算机病毒的主要传播方式有___。
A. 操作人员的身体
B. 借助于磁盘的数据交换
C. 通过网络发送与接收
D. 通过空气传播
【多选题】
所谓计算机病毒的危害是___。
A. 使盘片发生霉变
B. 破坏计算机的系统软件或文件内容
C. 破坏计算机的系统硬件
D. 干扰系统的运行,甚至造成系统瘫痪
【多选题】
下列现象中___可能是计算机病毒活动的结果。
A. 某些磁道或整个磁盘无故被格式化,磁盘上的信息无故丢
B. 使可用的内存空间减少,使原来可运行的程序不能正常运行
C. 计算机运行速度明显减慢,系统死机现象增多
D. 在屏幕上出现莫名其妙的提示信息、图像,发出不正常的声音
【多选题】
接地系统的种类有:___。
A. 交流接地
B. 直流接地
C. 保护接地和防雷接地
D. 联合接地
【多选题】
操作不间断电源(UPS)应注意:___
A. 按说明书的规定进行操作
B. 不要频繁开关机
C. 不要频繁进行逆变/旁路的切换
D. 不要带载开关机
【多选题】
交流不间断电源(UPS)的分类有:___
A. 在线式
B. 后备式
C. 在线互动式
D. 三角变换式
【多选题】
光纤的两个主要特征是___。
A. 色散特性
B. 导电特性
C. 温度特性
D. 损耗特性
【多选题】
消防通信系统辅助决策数据包括___等信息。
A. 气象、电话号码
B. 消防地理、消防水源
C. 消防实力、灭火救援备用器材
D. 灭火剂储备、消防安全重点单位、各类火灾与灾害事故特性
【多选题】
现场350MHz消防无线通信网内各台应自觉遵守___的原则。
A. 属台服从主台
B. 下级台服从上级台
C. 固定台照顾移动台
D. 移动台照顾固定台
【多选题】
为防止通信覆盖越区,可限制___。
A. 接收机功率
B. 天线高度
C. 基站发射机功率
【多选题】
专用调度系统又分为___等移动通信系统。
A. 常规
B. 模拟集群
C. 数字集群
D. 单向
【多选题】
使用电台通信时应严格按照无线电台的___等相应规则呼叫
A. 呼叫程序
B. 回答程序
C. 发话程序
D. 收话程序、结束程序
【多选题】
在无线通信中,话音信号是靠对电磁波的___进行调制而将话音信息传播出去的。
A. 幅度
B. 频率
C. 相位
D. 强弱
【多选题】
在建立现场有线通信网时,应遵循的原则是___。
A. 先主后次、先急后缓
B. 先通后整
C. 先前方后后方、先长途后内部
D. 警报信息和特急电话优先传递
【多选题】
与有线通信相比,微波通信具有___的特点。
A. 灵活性大
B. 投资较省
C. 建设速度快
D. 耗电较大
【多选题】
消防通信按技术组成可分为哪三类___。
A. 有线
B. 调度
C. 无线
D. 计算机
【多选题】
通信工作的原则是___。
A. 准确原则
B. 迅速原则
C. 求实原则
D. 保密原则
【多选题】
数字通信比模拟通信的优点是___。
A. 抗干扰能力强
B. 通信距离远、质量好
C. 便于加密处理,便于存储、处理、交换
D. 便于设备的集成化、微型化
【多选题】
简易通信方法主要有___。
A. 手旗孙
B. 哨、号
C. 灯光
D. 绳索
【多选题】
对火场通信的要求有___。
A. 迅速
B. 准确
C. 不间断
D. 保密
【多选题】
消防通信的具体工作内容:___。
A. 受理火警
B. 调度指挥
C. 现场通信
D. 消防勤务通信
【多选题】
灭火救援管理系统水源管理能实现哪些功能___?
A. 水源信息查询、统计;
B. 水源信息采集;
C. 检查、维修登记;
D. 水源熟悉。
【多选题】
灭火救援管理系统预案管理能实现哪些功能___?
A. 生成需制定灭火救援的对象(重大危险源、重点单位、重大活动等);
B. 灭火救援预案(对象/类型)的录入、审批和发布;
C. 为消防接处警系统和跨区域指挥调度系统提供数据支撑。
D. 管理预案单位的消防设施
【多选题】
无线通信网有以下几种组网方式___。
A. 单频单工大区覆盖网
B. 双频半双工大区覆盖网
C. 判选接收网
D. 多基地台中区覆盖网
【多选题】
通信网有以下几种基本结构___。
A. 网型
B. 星型
C. 复合型
D. 环型和总线型
【多选题】
增援力量及物资的调度方法:___
A. 途中调度
B. 计划调度
C. 临场调度
D. 紧急调度
【多选题】
对电话通信的要求是___。
A. 声音响度要适宜
B. 要有适当的清晰度
C. 减少听觉的疲乏和消除声的掩蔽现象
D. 电话机间传输衰耗对清晰度的影响要小
【多选题】
无线通信网中频道的选择方式有几种___。
A. 专用呼叫频道方式
B. 循环定位主试
C. 循环不定位方式
D. 循环分散定位方式
【多选题】
现场通信规范的内容包括:___
A. 现场通信组织
B. 现场350MHz无线通信组网
C. 辅助通信手段应用
D. 现场通信员交接
【多选题】
在计算机局部网络中,常用的传输介质主要有___。
A. 绞线
B. 同轴电缆
C. 光钎
D. 电话线
【多选题】
公安机关计算机信息系统安全保护工作___。
A. 坚持积极防御、综合防范的方针
B. 坚持安全技术与规范化管理相结合的原则
C. 坚持“专网专用”、“专机专用”的原则
D. 实行“谁管理、谁负责”、“谁使用、谁负责”的安全责任制
【多选题】
电话机的信号设备通常用来___。
A. 发送话音电流
B. 接受话音电流
C. 发送呼叫信号
D. 接受呼叫信号
【多选题】
无线电发射设备主要有哪几部分组成___。
A. 低频
B. 高频
C. 天馈线
D. 电源
【多选题】
市话通信网主要有几部分组成___。
A. 用户终端设备
B. 线路设备
C. 交换设备
D. 电源设备
【多选题】
火场无线通信网的应急调整的主要手段有___。
A. 改频
B. 转信
C. 合并
D. 启用备用台
【多选题】
消防无线通信网络包括___。
A. 城市覆盖网
B. 消防常规网
C. 灭火战斗网
D. 现场指挥网
【多选题】
消防通信按照技术组成可以分成___。
A. 有线通信
B. 无线通信
C. 计算机通信
D. 网络通信
【多选题】
通信电源系统由___组成。
A. 交流供电
B. 分散供电
C. 直流供电
D. 接地系统
推荐试题
【单选题】
What is the supported protocol to perform remote L3 traffic monitoring in vSphere 6.5?___
A. VXLAN
B. ERSPAN
C. RSPAN
D. SPAN
【单选题】
What are the minimum hardware requirements for a Windows vCenter Server with embedded PSC that manages a “Small” environment?___
A. 2vCPUs, 16 GB RAM
B. 4 vCPUs, 16 GB RAM
C. 2 vCPUs, 10 GB RAM
D. 4 vCPUs, 10 GB RAM
【单选题】
Which port is used for communication between ESXi and vSphere Data protection?___
A. 80
B. 443
C. 902
D. 22
【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
D. Error
【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
D. vSphere Web Client
【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