【单选题】
Which path do you follow to enable aaa through the SDM ？___
A. Configure Tasks > AAA
B. Configure > Addition Authentication > AAA
C. Configure > AAA
D. Configure > Additional Tasks > AAA
E. Configure Authentication > AAA
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相关试题
【单选题】
which technology cloud be used on top of an MPLS VPN to add confidentiality ？___
A. IPsec
B. 3DES
C. AES
D. SSL
【单选题】
Which term is most closely aligned with the basic purpose of a SIEM solution? ___
A. Non-Repudiation
B. Accountability
C. Causality
D. Repudiation
【单选题】
You have just deployed SNMPv3 in your environment， Your manager asks you to make sure that our SNMP agents can only talk to the SNMP Manager. What would you configure on your SNMI agents to satisfy this request？___
A. A SNMP View containing the SNMP managers
B. Routing Filter with the SNMP managers in it applied outbound
C. A standard ACL containing the SNMP managers applied to the SNMP configuration
D. A SNMP Group containing the SNMP managers
【单选题】
Which feature prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port？___
A. BPDU filte
B. DHCP snooping
C. BPDU guard
D. Port Fast
【单选题】
Which command enables port security to use sticky MAC addresses on a switch？___
A. switchport port-security violation restrict
B. switchport port-security mac-address sticky
C. switchport port-security violation protect
D. switchport port-security
【单选题】
When you edit an IPS subsignature， what is the effect on the parent signature and the family of subsignatures？___
A. The change applies to the parent signature and the entire family of subsignatures
B. The change applies to the parent signature and the subsignature that you edit
C. The change applies only to subsignatures that are numbered sequentially after the subsignature that you edit
D. Other signatures are unaffected， the change applies only to the subsignature that you dit
【单选题】
Which type of mechanism does Cisco FirePOWER de ploy to protect ag detected moving across other networks？___
A. antivirus scanning
B. policy-based
C. reputation-based
D. signature-based
【单选题】
What action must you take on the ise to blacklist a wired device？___
A. Locate the switch through which the device is connected and push an a cl restricting all access by the device
B. Issue a CoA request for the de vice's mac address to each access switch in the network
C. Revoke the device's certificate so it is unable to authenticate to the network
D. Add the device's MAc address to a list of black listed devices
【单选题】
Which type of firewall can perform deep packet inspection？___
A. packet-filtering firewall
B. stateless firewall
C. application firewall
D. personal firewall
【单选题】
What is the main purpose of Control Plane Policing？___
A. to prevent exhaustion of route-proce ssor resources
B. to organize the egress packet queues
C. to define traffic classes
D. to maintain the policy map
【单选题】
Which attack can be prevented by OSPF authentication？___
A. smurf attack
B. IP spoofing attack
C. denial of service attack
D. buffer overflow attack
【单选题】
What is the best definition of hairpinning？___
A. ingress traffic that traverses the outbound interface on a device
B. traffic that enters one interface on a device and that exits through another interface
C. traffic that enters and exits a device through the same interface
D. traffic that tunnels through a device interface
【单选题】
Which SNMPv3 security level provides authentication using HMAC with MD5， but does not use encryption？___
A. authPriv
B. authNo Priv
C. noAuthNoPriv
D. NoauthPriv
【单选题】
You have implemented a dynamic blacklist， using security intelligence to block illicit network activity. However， the blacklist contains several approved connections that users must access for usiness pur poses. Which action can you take to retain the blacklist while allowing users to access the approve d sites？___
A. Create a whitelist and manually add the approved addresses.
B. Disable the dynamic blacklist and deny the specif ic address on a whitelist while permitting the others
C. Edit the dynamic blacklist to remove the approved addresses
D. Disable the dynamic blacklist and create a static blacklist in its place
【单选题】
When connecting to an external resource,you must change a source IP address to use one IP address from a range of 207.165.201.1 to 207.165.1.30. Which option do you implement ?___
A. dynamic source NAT that uses an IP ad dress as a mapped source
B. static destination NAT that uses a subnet as a real de stination
C. dynamic source NAT that uses a range as a mapped source
D. static destination NAT that uses a subnet as a real source
【单选题】
Refer to the exhibit. 【nat（ins，any）dynamic interface】Which ty pe of NaT is configured on a Cisco ASA？___
A. dynamic NAT
B. source identity NAT
C. dynamic PAT
D. identity twice NAT
【单选题】
Which mitigation technology for web-based threats prevents the removal of confidential data from the network？___
A. CTA
B. DCA
C. AMP
D. DLP
【单选题】
Refer to the exhibit. What is the effect of the given configuration？___
A. It establishes the preshared key for the switch
B. It establishes the preshared key for the firewall.
C. It establishes the preshared key for the Cisco ISE appliance
D. It establishes the preshared key for the router.
【多选题】
What are two major considerations when choosing between a SPAN and a TAP when plementing IPS？___
A. the type of analysis the iS will perform
B. the amount of bandwidth available
C. whether RX and TX signals will use separate ports
D. the way in which media errors will be handled
E. the way in which dropped packets will be handled
【多选题】
What are two direct-to-tower methods for redirecting web traffic to Cisco Cloud Web Security？___
A. third-party proxies
B. Cisco Catalyst platforms
C. Cisco NAC Agent
D. hosted PAC files
E. CiSco ISE
【多选题】
Which three descriptions of RADIUS are true？ ___
A. It uses TCP as its transport protocol.
B. Only the password is encrypted
C. It supports multiple transport protocols
D. It uses UDP as its transport protocol
E. It combines authentication and authorization
F. It separates authentication，authorization，and accounting
【多选题】
Which two configurations can prevent VLAN hopping attack from attackers at VLAN 10？___
A. using switchport trunk native vlan 10 command on trunk ports
B. enabling BPDU guard on all access ports
C. creating VLAN 99 and using switchport trunk native vlan 99 command on trunk ports
D. applying ACl between VLAN
E. using switchport mode access command on all host ports
F. using switchport nonegotiate command on dynamic desirable ports
【多选题】
What are two features of transparent firewall mode ___
A. It conceals the presence of the firewall from attackers
B. It allows some traffic that is blocked in routed mode
C. It enables the aSA to perform as a router.
D. It acts as a routed hop in the network.
E. It is configured by default
【多选题】
Which two models of A sa tend to be used in a data center？___
A. 5555X
B. 5585X
C. ASA service module
D. 5512X
E. 5540
F. 5520
【多选题】
Which two statements about hardware-based encrption are true？___
A. It is widely accessible
B. It is potentially easier to compromise than software-based encryption. It requires minimal configuration
C. It requires minimal configuration
D. It can be implemented without impacting performance
E. It is highly cost-effective
【多选题】
In which two modes can the Cisco We b Security appliance be de ployed？___
A. as a transparent proxy using the Secure Sockets Layer protocol
B. as a transparent proxy using the Web Cache Communication Protocol
C. explicit proxy mode
D. as a transparent proxy using the Hyper Text Transfer Protocol
E. explicit active mode
【单选题】
1．三相刀开关的图形符号与交流接触器的主触点符号是___。
A. 一样的
B. 可以互换
C. 有区别的
D. 没有区别
【单选题】
5．熔断器的作用是___。
A. 短路保护
B. 过载保护
C. 失压保护
D. 零压保护
【单选题】
6．热继电器的作用是___。
A. 短路保护
B. 过载保护
C. 失压保护
D. 零压保护
【单选题】
7．交流接触器的作用是可以___接通和断开负载。
【单选题】
8．三相异步电动机的启停控制线路由电源开关、熔断器、___、热继电器、按钮等组成。
A. 时间继电器
B. 速度继电器
C. 交流接触器
D. 漏电保护器
【单选题】
9．三相异步电动机的启停控制线路中需要有___、过载保护和失压保护功能。
A. 短路保护
B. 超速保护
C. 失磁保护
D. 零速保护
【单选题】
10维修电工以___、安装接线图和平面布置图最为重要。
A. 电气原理图
B. 电气设备图
C. 电气安装图
D. 电气组装图
【单选题】
11．熔断器的额定电压应___线路的工作电压。
A. 远大于
B. 不等于
C. 小于等于
D. 大于等于
【单选题】
12．对于电阻性负载，熔断器熔体的额定电流___线路的工作电流。
A. 远大于
B. 不等于
C. 等于或略大于
D. 等于或略小于
【单选题】
13．对于电动机负载，熔断器熔体的额定电流应选电动机额定电流的___倍。
A. 1~1.5
B. 1.5-2.5
C. 2.0~3.0
D. 2.5~3．5
【单选题】
14．使用快速熔断器时，一般按___来选择。
A. IN=1.03IF
B. IN=1.57IF
C. IN=2.57IF
D. IN=3IF
推荐试题
【单选题】
最小坡段长度为一地铁列车长，取为___m。
A. 110
B. 120
C. 130
D. 140
【单选题】
坡度值用每___m的水平距离与线路升高或降低的数值之比的千分率来表示。
A. 3000
B. 2000
C. 1000
D. 500
【单选题】
隧道内折返线和存车线，既要保持隧道内最小的排水坡度，又需满足停放车辆和检修作业的要求，一般选取___。
A. 10‰
B. 20‰
C. 30‰
D. 40‰
【单选题】
坡段与坡段相连，规范规定，相邻两坡段的坡度值，二者代数差大于等于___时，必须在变坡点设置竖曲线。
【单选题】
竖曲线半径，一般情况下区间内为___m。
A. 2000
B. 3000
C. 4000
D. 5000
【单选题】
竖曲线半径困难地段为___m。
A. 1000
B. 2000
C. 3000
D. 4000
【单选题】
竖曲线半径站端为___m。
A. 2000
B. 3000
C. 4000
D. 5000
【单选题】
竖曲线半径辅助线为___m。
A. 2000
B. 3000
C. 4000
D. 5000
【单选题】
车站站台计算长度内和道岔范围内___竖曲线。
A. 不得设置
B. 可设置一条
C. 可设置两条
D. 可设置三条
【单选题】
钢轨垂直磨耗在钢轨顶面宽___测量。
A. 2/3处（距钢轨外侧）
B. 1/2处（距钢轨外侧）
C. 1/3处（距钢轨外侧）
D. 1/4处（距钢轨外侧）
【单选题】
___不是25m钢轨曲线标准缩短轨。
A. 24.96m短轨
B. 24.92m短轨
C. 24.88m短轨
D. 24.84m短轨
【单选题】
60kg/m钢轨高___。
A. 152mm
B. 164mm
C. 176mm
D. 192mm
【单选题】
不同类型的钢轨互相联结时，应使用___。
A. 鱼尾型夹板
B. 平直夹板
C. 双头式夹板
D. 异性夹板
【单选题】
10.9级高强度螺栓抗拉强度为___。
A. 660MPa
B. 830MPa
C. 940MPa
D. 1040Mpa
【单选题】
60kg/m钢轨的构造轨缝是___。
A. 16mm
B. 17mm
C. 18mm
D. 20mm
【单选题】
钢轨总磨耗等于垂直磨耗与___之和。
A. 侧磨磨耗
B. 1/2侧面磨耗
C. 1/3侧面磨耗
D. 1/4侧面磨耗
【单选题】
钢轨侧面磨耗在距踏面（标准断面下）___测量。
A. 14mm范围内
B. 14mm处
C. 16mm范围内
D. 16mm处
【单选题】
在正线线路上个别插入短轨，其长度不得短于___。
A. 10m
B. 8m
C. 6m
D. 4.5m
【单选题】
曲线实设最大超高，在单线上不得大于___。
A. 125mm
B. 135mm
C. 145mm
D. 150mm
【单选题】
轨头下颏透锈长度超过___为重伤钢轨。
A. 20mm
B. 30mm
C. 40mm
D. 50mm
【单选题】
绝缘接头轨缝不得小于___。
A. 4mm
B. 5mm
C. 6mm
D. 9mm
【单选题】
曲线未被平衡的欠超高，一般应不大于___。
A. 65mm
B. 75mm
C. 80mm
D. 85mm
【单选题】
站台边缘至线路中心线的水平距离为___。
A. 1300mm
B. 1400mm
C. 1500mm
D. 1600mm
【单选题】
线路设备状态评定时，是以___为单位。
【单选题】
线路设备状态评定时，___分为合格。
A. 85-100
B. 70-85
C. 60-85
D. 60-90
【单选题】
工务中心组织对正线轨道和道岔评定一次，采取___检查办法进行。
A. 定点检查
B. 随机抽样
C. 固定一样
D. 不检查
【单选题】
___的检查，是轨道动态质量检查的主要手段。
A. 轨道检测车
B. 人工添乘
C. 添乘仪
D. 钢轨打磨车
【单选题】
管理分工分为设___三级管理职责。
A. 中心、班组、部门
B. 部门、班组、中心
C. 部门、中心、班组
D. 中心、部门、班组
【单选题】
按照___的原则，运营分公司授权工务中心直接对委外单位（人员）进行管理。
A. 一般
B. 部门规定
C. 中心规定
D. 谁使用、谁管理、谁考核
【单选题】
委外单位依据___原则合理编制月度（周）计划，报中心批准
A. 先严重、后一般
B. 先一般、后严重
C. 中心制定的年度计划
D. 现场设备
【单选题】
中心根据___,编制设施设备年度检修计划及巡视计划。
A. 设备维护周期
B. 设备实际状态及维护周期
C. 设备实际状态
D. 随意规定
【单选题】
对于一些结构特殊故障、损坏，委外单位应提供___供中心审批后才可开展有关维护工作。
A. 详细的施工方案
B. 什么都不用
C. 随意的施工方案
D. 口头的施工方案
【单选题】
___是地铁运营工作的生命线。
A. 管理
B. 生产
C. 后勤保障
D. 安全
【单选题】
工务及委外维保单位人员必须坚决坚持___的方针，把安全工作放在首位
A. 生产是第一要素
B. 安全第一、预防为主
C. 安全第一
D. 预防第一
【单选题】
维修人员必须严格执行___等基本安全生产制度。
A. 安全第一、预防为主
B. 三不离、四不放过
C. 三不动、三不离、四不放过
D. 无
【单选题】
各作业单位在施工结束前务必做到___。
A. 人员出清
B. 工具出清
C. 物料出清
D. 工完、料尽、场地清
【单选题】
道岔平面：半割线型曲线尖轨（割距4mm），割线型直线辙叉（割距12mm），导曲线半径___。
A. 250m
B. 100m
C. 150m
D. 200m
【单选题】
___是引导车辆由一条线路转往另一条线路的过渡设备。
【单选题】
道岔设备修理分为___三大层次。
A. 经常保养、维修和大修
B. 临时抢修、维修和大修
C. 临时抢修、巡检和维修
D. 巡检、维修和大修
【单选题】
停车场50kg/m钢轨___单开道岔。
A. 9号
B. 7号
C. 11号
D. 10号
