相关试题
【多选题】
可供选择的开关门模式有___ （摘自维修手册）
A. 自动
B. 半自动
C. 手动
D. 半联动
【多选题】
车门橙色指示灯什么情况下保持常亮。___ （摘自维修手册）
A. “车门处于打开位置
B. 开门过程中
C. 车门处于紧急操作状态下
D. 门关好
【多选题】
车门橙色指示灯什么情况下保持常亮。___ （摘自维修手册）
A. 车门处于打开位置
B. 开门过程中
C. 车门处于紧急操作状态下
D. 门关好
【多选题】
网络硬线切换定义正确的是：___（摘自维修手册）
A. 硬线：此时EDCU 响应列车硬连线发出的车门开关指令
B. 网络：此时EDCU 响应列车MVB 网络发出的车门开关指开门过程中
C. 硬线：此时EDCU 响应列车MVB 网络发出的车门开关指开门过程中
D. 网络：此时EDCU 响应列车硬连线发出的车门开关指令
【多选题】
每个门控器都配有下列部件___（摘自维修手册）
A. 逻辑模块
B. 电源模块
C. 电控模块
D. 数据模块
【多选题】
车门关闭过程中，可通过下列方式探测到障碍物：___ （摘自维修手册）
A. 力矩监控
B. 位移/时间监控
C. 电机电流监控
D. 电机电压监控
【多选题】
车辆车门开启的先前条件有___（摘自维修手册）
A. 车门开启允许信号
B. 零速信号
C. 开门信号
D. 牵引信号
【多选题】
长沙地铁1号线车辆的转向架驱动装置主要功能是：产生（ ）、（）；将驱动力矩、电制动力矩传递到（ ）上。 ___（摘自维修手册）
A. 驱动力矩
B. 电制动力矩
C. 轮对
D. 受电弓
【多选题】
下面哪些属于一系悬挂装置。___ （摘自维修手册）
A. 螺旋钢弹簧
B. 抗侧滚扭杆
C. 一系垂向止挡
D. 一系垂向减振器
【多选题】
牵引梁用于安装车辆的车钩缓冲器，用来传递___。（摘自维修手册）
A. 车体重力
B. 车辆间的牵引力
C. 车体横向冲击力
D. 车辆间的制动力
【多选题】
车体底架的主要作用是承受 ___。（摘自维修手册）
A. 车体上部载荷
B. 因各种原因而引起的横向力
C. 走行部传递来的各种振动和冲击
D. 传递列车的牵引力
E. 传递列车的制动力。
【多选题】
长沙地铁1号线车辆的转向架承载方式是（）和（）。 ___（摘自维修手册）
A. 中心牵引装置
B. 空气弹簧
C. 钢板
D. 油缸
【多选题】
长沙地铁1号线车辆的转向架侧梁上有___。（摘自维修手册）
A. 垂向减振器安装座
B. 抗侧滚扭杆安装座
C. 金属螺旋弹簧座
D. 横向减振器安装座
【多选题】
长沙地铁1号线车辆轮对主要功能有___。（摘自维修手册）
A. 车辆与轨道的接触部分，引导车辆安全地沿轨道运行
B. 承载车辆重量
C. 排除轨道上的障碍
D. 将牵引力和制动力传递到轨道
【多选题】
长沙地铁1号线车辆的转向架轴箱组装由（ ）、（ ）、轴承压盖、（ ）外端盖及电气部件组成。___（摘自维修手册）
【多选题】
长沙地铁1号线车辆的转向架构架型式由（ ）、（）焊接而成H型构架和。___（摘自维修手册）
A. 两根侧梁
B. 三根侧梁
C. 四根侧梁
D. 中间横梁
【多选题】
长沙地铁1号线车辆的转向架轴箱主要功能是：传递（ ）和（）；将轮对的旋转运动转换为车辆的直线运动；支撑（ ）上载荷。 ___（摘自维修手册）
A. 牵引力
B. 制动力
C. 二系簧
D. 一系簧
【多选题】
当出现下列情况之一时，司机应主动采取紧急牵引。___（摘自维修手册）
A. 出现操作端HMI通信故障；
B. 出现两个或两个以上BCU通信故障；
C. HMI黑屏；
D. 列车无法正常牵引；
【多选题】
网络拓扑可分为___型。 （摘自维修手册）
A. 总线型
B. 星型
C. 混合型
D. 三角型
【多选题】
TCMS 采用分布式控制技术，划分为两级：___ （摘自维修手册）
A. 列车控制级
B. 车控
C. 车辆控制级
D. 集控
【多选题】
TCMS 将故障划分为3 个等级：___ （摘自维修手册）
A. 严重故障
B. 中等故障
C. 较轻微故障
D. 轻微故障
【多选题】
控制手柄设有4个档位，分别为___。（摘自维修手册）
A. 牵引区
B. 0位
C. 制动区
D. 快速制动位
E. ATO
【多选题】
控制手柄用来控制列车___功能。（摘自维修手册）
【多选题】
TCMS主要包含四类功能有___。（摘自维修手册）
A. 控制功能
B. 故障检测
C. 监视功能
D. 诊断功能
【多选题】
当一个辅助逆变器故障，另一个辅助逆变器给以下___设备供电。 （摘自维修手册）
A. 所有外部冷却风扇
B. 所有空调单元
C. 所有空压机
D. 每车一个空调单元
E. 其中一个空压机
【多选题】
蓄电池充电器(DC/DC)的特点是___。（摘自维修手册）
A. 输出DC110V
B. 输入和输出之间电压隔离
C. 紧急启动
D. 限压恒流浮充电
E. 采用IGBT技术
【多选题】
长沙地铁1号线列车的司控器具有___等特点。（摘自维修手册）
A. 结构紧凑、体积小
B. 重量轻
C. 高可靠、长寿命
D. 少维修或免维修
【判断题】
门页在开关过程中下摆臂体与下滑道下边应无摩擦干涉，滚轮面下部平齐或高于下滑道底边。
【判断题】
空气（摩擦）制动是用来补充所要求的制动指令和已达到的电制动力之间的差额，以及没有电制动时，完全满足列车的制动的。
【判断题】
所设计的弹簧制动力可保证AW3载荷列车停放于最大坡度的轨道上。
【判断题】
紧急空气制动系统由贯穿整个列车的DC110V连续电源线控制紧急制动的缓解。
【判断题】
紧急制动可不经过微机制动控制单元（以下简称EBCU）的控制，直接使制动控制单元（以下简称BCU）中的紧急电磁阀失电而产生。
【判断题】
快速制动设计为紧急情况下一种制动方式。当司控器位于快速制动位时，列车施加快速制动。
【判断题】
快速制动、紧急制动设计为紧急情况下一种制动方式。快速制动、紧急制动不具有防滑保护和冲动限制。
【判断题】
长沙地铁1号线踏面制动单元间隙调整装置由两组组件组成：丝杆组件和“伸缩组件”。
【判断题】
长沙地铁1号线风源系统油过滤器是一种纸质过滤器，其功能是去除油中杂质，如金属微粒、油之劣化物等杂质。
【判断题】
轮缘润滑供风装置主要是一个球阀，用于控制主风管向轮缘润滑设备的气源供应。
【判断题】
长沙地铁1号线空气干燥器为双塔式干燥器，一塔干燥的同时，另一塔进行再生。
【判断题】
任意一端的司机室都可以随时向另外一端的司机室发起对讲。对讲声音通过监听扬声器放出。
【判断题】
当紧急情况（紧急对讲、紧急开门）发生时，司机室触摸屏显示器全屏显示发生紧急事件所在车厢的图像。
推荐试题
【单选题】
Within an 802. 1x-enabled network with the auth Fail feature configured， when does a switch port get placed into a restricted VLAN？___
A. When a conected client fails to authenticate after a certain number of attempts.
B. if a connected client does not support 802. 1x
C. when AAA new-model is ena bled
D. after a connected client exceeds a specified idle time
E. when 802. 1x is not globally enabled on the Cisco Catalyst switch
【单选题】
Which type of attack does a proxy firewall protect against ？___
A. cross-site scripting attack
B. worm traffic
C. port scanning
D. DDoS attacks
【单选题】
When an administrator initiates a device wipe command from the ISE， what is the immediate effect？___
A. It requests the administrator to choose between erasing all device data or only managed corporate data.
B. It requests the administrator to enter the device pin or password before proceeding with the operation
C. It notifies the device user and proceeds with the erase operation
D. It immediately erases all data on the device
【单选题】
What is a valid implicit permit rule for traffic that is traversing the ASa firewall？___
A. ARPs in both directions are permitted in transparent mode only
B. Unicast IPv4 traffic from a higher security interface to a lower security interface is permittee in routed mode only.
C. Unicast IPv6 traffic from a higher security interface to a lower security interface is permitted in transparent mode only.
D. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in transparent mode.
E. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in routed mode
【单选题】
A specific URL has been identified as containing malware. What action can you take to block users from accidentally visiting the URl and becoming infected with malware ？___
A. Enable URL filtering on the perimeter router and add the URls you want to block to the router's local URL list
B. Enable URL filtering on the perimeter firewall and add the URls you want to allow to the router's local URL list.
C. Enable URL filtering on the perimeter router and add the URls you want to allow to the firewall's local URL list
D. Create a blacklist that contains the URl you want to block and activate the blacklist on the perimeter rout
E. Create a whitelist that contains the URLs you want to allow and activate the whitelist on the perimeter router.
【单选题】
How does PEAP protect the EAP exchange ？___
A. It encrypts the exchange using the server certificate
B. It encrypts the exchange using the client certificate
C. It validates the server-supplied certificate,and then encrypts the exchange using the client certificate
D. It validates the client-supplied certificate,and then encrypts the excha nge using the server certificate
【单选题】
Which feature of the Cisco Email Security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attacks？___
A. contextual analysis
B. holistic understanding of threats
C. graymail management and filtering
D. signature-based IPS
【单选题】
Refer to the exhibit【nat (inside,outside)dunamic interface】 Which translation technique does this configuration result in？___
A. DynamIc PAT
B. Dynamic NAT
C. Twice NAT
D. Static NAT
【单选题】
Refer to the exhibit which are repre sents the data center？___
【单选题】
While trouble shooting site-to-site VPN， you issued the show crypto isakmp sa command. What does the given output show？___
A. IKE Phase 1 main mode was created on 10.1.1.5， but it failed to negotiate with 10.10 10.2
B. IKE Phase 1 main mode has successfully negotiated between 10.1.1.5 and 10.10..
C. IKE Phase 1 aggressive mode was created on 10.1.1.5， but it failed to negotiate with
【单选题】
Refer to the exhibit All ports on switch 1 have a primary vLan of 300 Which devices can host 1 reach？___
A. host 2
B. server
C. host 4
D. other devices within VLAN303
【单选题】
Which option is the cloud-based security service from Cisco the provides URL filtering， web browsing content security， and roaming user protection？___
A. Cloud Web service
B. Cloud Advanced Malware Protection
C. Cloud We b Security
D. Cloud Web Protection
【单选题】
How can you detect a false negative on an IPS？___
A. View the alert on the ips
B. Review the ips log
C. Review the is console
D. Use a third- party system to perform penetration testing.
E. Use a third- party to audit the next generation firewall rules
【单选题】
If a switch port goes directly into a blocked state only when a superior BPDU is received， what mechanism must be in use？___
A. STP BPDU guard
B. Loop guard
C. EtherChannel guard
D. STP Root guard
【单选题】
what improvement does EAP-FASTv2 provide over EAP-FAST？ ___
A. It allows multiple credentials to be passed in a single EAP exchange.
B. It supports more secure encryption protocols
C. It allows faster authentication by using fewer packets.
D. It addresses security vulnerabilities found in the original protocol
【单选题】
When users login to the Client less Ssl Vpn using https://209.165.201.2/test ,which group policy will be applied？___
A. test
B. clientless
C. sales
D. DfitGrp Policy
E. Default RAGroup
F. Default WEB VPN
G. roup
【单选题】
Which user authentication method is used when users login to the Clientless SSLVPN portal using https://209.165.201.2/test？___
A. AAA with LOCAL database
B. AAA with RADIUS server
C. Certificate
D. :Both Certificate and aaa with LoCAL database
E. Both Certificate and AAA with RADIUS server
【单选题】
What' s the technology that you can use to prevent non malicious program to runin the computer that is disconnected from the network？___
A. Firewall
B. Sofware Antivirus
C. Network IPS
D. Host IPS
【单选题】
Which statement about the communication between interfaces on the same security level is true？___
A. Interfaces on the same security level require additional configuration to permit interinterface communication
B. Configuring interfaces on the same security level can cause asymmetric routing
C. All traffic is allowed by default between interfaces on the same security level
D. You can configure only one interface on a n individual security level
【单选题】
Which product can be used to provide application layer protection for tcp port 25 traffic？___
A. ESA
B. CWS
C. WSA
D. ASA
【单选题】
which iPS mode is less secure than other options but allows optimal network through put ?___
A. inline mode
B. inline-bypass mode
C. transparent mode
D. Promiscuous mode
【单选题】
Which feature of the Cisco Email security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attack？___
A. reputation based filtering
B. signature based IPS
C. contextual analysis
D. graymail management and filtering
【单选题】
Which type of social-engineering attack uses normal tele phone service as the attack vector？___
A. smishing
B. dialing
C. phishing
D. vishing
【单选题】
Which quantifiable item should you consider when you organization adopts new technologies？___
A. exploits
B. vulnerability
C. threat
D. Risk
【单选题】
Referencing the ClA model， in which scenario is a hash- only function most appropriate ？___
A. securing data at rest
B. securing real-time traffic
C. securing data in files
D. securing wireless transmissions
【单选题】
Which ports must be open between a aaa server and a microsoft server to permit Active Directory authentications？___
A. 445 and 389
B. 888 and 3389
C. 636 and 4445
D. 363 and 983
【单选题】
Refer to the exhibit for which reason is the tunnel unable to pass traffic___
A. the tunnel is failing to receive traffic from the remote peer
B. the local peer is unable to encrypt the traffic
C. the ip address of the remote peer is incorrect
D. UDP port 500 is blocked
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
How can you protect CDP from reconnaissance attacks？___
A. Enable dynamic ARP inspection on all untrusted ports.
B. Enable dot1x on all ports that are connected to other switches.
C.
D. isable CDP on ports connected to endpoints.
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without ？___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
Which option is a key security compone nt of and MDM deployment ？___
A. using network-specific installer packages
B. using an application tunnel by default
C. using self-signed certificates to validate the server
D. using MS-CHAPv2 as the primary
E. AP method
【单选题】
Which Firepower Management Center feature detects and block exploits and hack attempts？___
A. Content blocker
B. file control
C. intrusion prevention
D. advanced malware protection
【单选题】
hich description of the nonsecret numbers that are used to start a Diffie- Hellman exchange is ture？___
A. They are preconfigured prime integers.
B. They are large pseudorandom numbers.
C. They are very small numbers chosen from a table of known valuses
D. They are numeric values extracted from ha shed system hostnames
【多选题】
Which two characteristics of an application layer firewall are true？___
A. provides stateful firewal functionality
B. has low processor usage
C. provides protection for multiple applications
D. provides rever se proxy services
E. is immune to URL manipulation
【多选题】
Which two devices are components of the BYOD architectural framework？___
A. Nexus 7010 switch
B. Cisco 3945 Router
C. Identify Services Engine
D. Wireless Access oints
E. Prime Infrastructure
【多选题】
Which two actions can a zone based firewall take when looking at traffic？ ___
A. forward
B. inspect
C. drop
D. broadcast
E. filter
【多选题】
n which two situations should you use in-band management？___
A. when management applications need concurrent access to the device
B. when you require administrator access from multiple locations
C. when a network device fails to forward packets
D. when you require ROMMON access
E. when the control plane fails to respond
【多选题】
What are two ways to prevent eavesdropping when you perform device management tasks？___
A. Use an SSH connection.
B. Use SNMPv3
C. Use out-of-band management
D. Use SNMP
E. Use in-band management
【多选题】
Which two features are commonly used CoPP and CPPr to protect the control plane？ ___
A. QoS
B. traffic classification
C. access lists
D. policy maps
E. class maps
F. Cisco Express Forwarding
【多选题】
Which four tunne ling prot ocols are enabled in the Dfit GrpPolicy group policy ？___
A. Clientless SSL VPN
B. SSL VPN Client
C. PPTP
D. L2TP/IPsec
E. IPsec IKEv1
F. IPsec IKEv2
