相关试题
【单选题】
（1）如果该公司执行的是固定股利政策，并保持资本结构不变，2016年度公司留存利润为___元
A. 700
B. 600
C. 800
D. 200
【单选题】
（2）如果该公司执行的是固定股利政策，并保持资本结构不变，2017年自有资金需要量为___元
A. 700
B. 600
C. 800
D. 200
【单选题】
（3）如果该公司执行的是固定股利政策，并保持资本结构不变，2017年外部自有资金筹集数额为___元
A. 300
B. 100
C. 400
D. 200
【单选题】
（4）如果该公司执行的是固定股利支付率政策，并保持资本结构不变，2015年股利支付率为___
A. 30%
B. 40%
C. 50%
D. 60%
【单选题】
（5）如果该公司执行的是固定股利支付率政策，并保持资本结构不变，2016年公司留存利润为___元
A. 400
B. 450
C. 550
D. 650
【单选题】
CCSU单元内除了电源板、中央处理器、消息总线接口板外，还有 。
A. 信令板
B. 补空板
C. 时钟板
D. 2M接口板
【单选题】
基站铁塔地阻值应小于 。
A. 1欧姆
B. 3欧姆
C. 5欧姆
D. 10欧姆
【单选题】
_____是靠电离层反射进行传播，实现远距离通信的电波。
【单选题】
波长是指电磁波在一个周期的振荡时间内所走过的距离。现有1个信号，频率为f=457MHz，则此信号的波长是____ m。
A. 0.5
B. 0.6
C. 0.66
D. 0.7
【单选题】
查询南京地铁NOKIA交换机当日的操作LOG的命令是 。
A. AHO
B. IGO
C. USI
D. WUI
【单选题】
超短波无线电信号的频率范围是 。
A. 535-1605KHz
B. 10-15MHz
C. 3-30MHz
D. 30-300MHz
【单选题】
交换机完成一系列的软件加载直到进入正常运行状态大致需要_____分钟的时间。
A. 1到2分钟
B. 5到6分钟
C. 10到15分钟
D. 30分钟
【单选题】
可以通过简单的拔插电路板来实现电路板的重启，或通过在交换机中输入 命令来实现。
A. USC
B. USI
C. ABO
D. AHO
【单选题】
控制中心集群交换机使用_____电源。
A. ＋48V直流
B. 220V交流
C. -48V直流
D. 380V交流
【单选题】
控制中心网管不能监控____设备工作状态。
A. 基站
B. 光直放站
C. 交换机
D. DSC
【单选题】
南京地铁的无线设备工作在 频段。
A. 400M
B. 800M
C. 900M
D. 1800M
【单选题】
南京地铁无线车载台所使用的电源电压为
A. 110V
B. 220V
C. 380V
D. 1500V
【单选题】
南京地铁无线基站的最大功率为 。
A. 5W
B. 10W
C. 20W
D. 25W
【单选题】
南京地铁无线基站和直放站的连接通过 。
A. E1
B. RS422
C. 光纤
D. RS232
【单选题】
南京地铁无线系统交换机和基站的组网方式为 。
A. 星型网
B. 环型网
C. 线状网
D. 混合网
【单选题】
南京地铁无线直放站近端机和远端机的连接通过____。
A. E1
B. 射频线
C. 光纤
D. RS232
【单选题】
为防止车站内无线通信各系统内互相干扰，原则上规定各种电台的发射功率不应 。
A. >1W
B. 1.5W
C. 3W
D. 5W
【单选题】
无线车载台所使用的吸顶天线安装在列车 位置。
A. 车头底部
B. 车头顶部
C. 车身中部
D. 车身顶部
【单选题】
无线调度台的电源 。
A. 只能使用－48V直流电源
B. 只能使用220V交流电源
C. 既能使用220V交流电源又能使用－48V直流电源
D. 只能使用380V交流电源
【单选题】
无线调度台退出的正确顺序为 。
A. 先退出软件再注销最后关闭服务
B. 先注销再关闭服务最后推出软件
C. 先注销再推出软件最后关闭服务
D. 先关闭服务再推出软件最后注销
【单选题】
无线集群基站的电源 。
A. 只能使用220V交流电源
B. 只能使用－48V直流电源
C. 既能使用220V交流电源又能使用－48V直流电源
D. 只能使用380V交流电源
【单选题】
无线远程登陆交换机时，超级终端的波特率设置为 。
A. 9600
B. 4800
C. 2400
D. 12000
【单选题】
无线直放站网管与传输系统的接口为 。
A. RS422
B. 以太网口
C. E1接口
D. RS232
【单选题】
下列单元中，不是采用2N冗余方式的为 单元。
A. CCC
B. PDCU
C. GSWB
D. CCSU
【单选题】
下列单元中，无冗余方式的单元为 。
A. CCC
B. SIPU
C. OMU
D. CCSU
【单选题】
下列哪个单板是CCC单元中提供交换机与基站、无线调度台、PABX及PSTN的信令联络。
A. MBIF-B
B. CP710-A
C. AS7-B
D. SWCOP-A
【单选题】
下列选项中不属于TRMC功能的是 。
A. 将来自接收天线的射频信号放大
B. 出现故障将发送告警信息
C. 使信道使用更加均衡并能保证同步，编码加密等功能
D. 平均的划分信号到所有接收机等功能
【单选题】
以下哪个不是集群通信的特点 。
A. 共用频率
B. 无优先级
C. 共享业务
D. 具有通播功能
【单选题】
以下哪块单板必须写入相应数据后才能使用 。
A. TRUA
B. TDSC
C. HWAT
D. MBIF
【单选题】
在VDU上使用 命令可以查看单元工作状态。
A. AHO
B. USI
C. PSI
D. UDQ
【单选题】
在手持台特殊号码的使用中，下列哪个字符串表示“打开车载广播”。
A. ＄%60004&@
B. ＄%60020&@
C. ＄%60000&@
D. ＄%60022&@
【单选题】
无线电电波在真空中传播速度为（ ）m/s。
A. 3000000
B. 30000000
C. 300000000
D. 30000000000
【单选题】
降低天线高度可（ ）车站台的越区干扰。
【单选题】
天线是将（ ）电能与电磁波互相转换的设备部件。
【单选题】
天线电压驻波比反映了天线、馈线和设备匹配程度，理想匹配状况下，电压驻波比数值为（ ）。
推荐试题
【多选题】
Which two actions can an end usts take to manage a lost or stolen device in Cisco ISE？ ___
A. Activate Cisco ISE End point Protection Services to quarantine the device.
B. Add the mac address of the device to a list of blacklisted devices
C. Force the device to be locked with a PIN
D. Request revocation of the digital certificate of the device.
E. Reinstate a device that the user previously marked as lost or stolen
【多选题】
Which two problems can arise when a proxy firewall serves as the gateway between networks？___
A. It can prevent content caching
B. It can limit application support
C. It is unable to prevent direct connections to other networks
D. It can cause reduced throughput.
E. It is unable to provide antivirus protection
【多选题】
When using the Adaptive Security Device Manager（ASDM）， which two methods are available to add a new root certificate？___
A. Use sCep
B. Install from SFTP server
C. Install from a file
D. Use Https
E. Use LDAP
【多选题】
Which two are considered basic security principles？___
A. Accountability
B. Redundancy
C. High Availabilit
D. Integrity
E. Confidentiality
【多选题】
Which two roles of the Cisco WSA are true？___
A. IPS
B. firewall
C. antispam
D. web proxy
E. URL filter
【单选题】
Which next-generation encryption algorithm supports four variants？___
A. SHA-2
B. SHA-1
C. MD5
D. HMAC
【单选题】
What aims to remove the abil ity to deny an action？___
A. Non-Repudiation
B. Accountability
C. Integrity
D. Deniability
【单选题】
Which statements about the native VLAN is true ？___
A. It is susceptible to VLAN hopping attacks.
B. It is the Cisco recommended VLAN for switch-management traffic
C. It is most secure when it is a ssigned to vLAn 1.
D. It is the cisco-recomme nded vlan for user traffic
【单选题】
There are two versions of IKE:IKEv1 and IKEv2. Both IKEv1 and IKEv2 protocols operate in phases IKEv1 operates in two phases. IKEv2 operates in how many phases？___
【单选题】
What does the dh group refer to？___
A. length of key for hashing C
B. length of key for encryption
C. tunnel lifetime key
D. length of key for key exchange
E. length of key for authentication
【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
【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
