【单选题】
How can you mitigate attacks in which the attacker attaches more than one vLan tag to a packet？___
A. Assign an access VLAN to every active port on the switch
B. Disable Ether Channel on the switch
C. Explicitly identity each VLAN allowed across the trunk
D.
E. nable transparent VTP on the switch
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相关试题
【单选题】
Which technology can you implement to centrally mitigate potential threats when users on your network download files that might be malicious？___
A. Enable file-reputation services to inspect all files that traverse the company network and block files with low reputation scores
B. Verify that the compa ny IpS blocks all known malicious website
C. Verity that antivirus software is installed and up to date for all users on your network
D. Implement URL filtering on the perimeter firewall
【单选题】
What is the most common implementation of PaT in a standard networked environment？___
A. configuring multiple external hosts to join the self zo ne and to communicate with one another
B. configuring multiple internal hosts to communicate outside of the network using the outside interface IP address
C. configuring multiple internal hosts to communicate outside of the network by using the inside interface IP address
D. configuring an any any rule to enable external hosts to communicate inside the network
【单选题】
Which component of a bYod architecture provides aAa services for endpoint access ?___
A. Integrated Services Router
B. access point
C. ASA
D. Identity Services
E. ngine
【单选题】
You are configuring a NAT rule on a Cisco ASA ,Which description of a mapped interface is true?___
A. It is mandatory for all firewall modes
B. It is optional in routed mode
C. It is optional in transparent mode
D. It is mandatory for ide ntity NAT only
【单选题】
Which description of the use of a private key is true ？___
A. The sender signs a message using the receivers private key
B. The sender signs a message using their private key
C. The sender encrypts a message using the receivers private key
D. The receiver decrypts a n15ssage using the sender's private key
【单选题】
Which mechanism does the FireAMP Connector use to avoid conflicts with other security applications such as antivirus products ?___
A. Virtualization
B. Containers
C. Sandboxing
D.
E. xclusions
【单选题】
Which network to pology de scribes multiple LANS in a gec? ___
A. SOHO
B. MAN
C. pan
D. CAN
【单选题】
Which statement represents a difference between an access list on an aSa versus an access list on a router？___
A. The asa does not support number access lists
B. The aSa does not support standard access list
C. The asa does not ever use a wildcard mask
D. The asa does not support extended access lists
【单选题】
Which command do you enter to verify the status and settings of an iKE Phase 1 tunnel？___
A. show crypto ipsec as output
B. show crypto isakmp
C. show crypto isakmp policy
D. show crypto ipsec transform
【单选题】
Which feature can help a router or switch maintain packet forwarding and protocol states despite an attack or heavy traffic load on the router or switch？___
A. service Policy
B. Control Plane Policing
C. Policy Map
D. Cisco
E. xpress
F. orwarding
【单选题】
Which STP feature can prevent an attacker from becoming the root bridge by immediately shutting down the interface when it receives a BPDU？___
A. root guard
B. Port Fast
C. BPDU guard
D. BPDU filtering
【单选题】
Which technology can best protect data at rest on a user system？___
A. full-disk encryption
B. IPsec tunnel
C. router ACL
D. network IPS
【多选题】
Which two primary security concerns can you mitigate with a BYOD solution ？___
A. schedule for patching the device
B. securing access to a trusted corporate network
C. compliance with applicable policies
D. connections to public Wi-Fi networks
E. device tagging and invento
【多选题】
choose five___
A. MD5————————inserure
B. DES————————insercure
C. SDES———————legacy
D. SHA-1———————legacy
E. HMAC-MD5—————legacy
【多选题】
Which two characteristics of symmetric encryption are true？___
A. It uses digital certificates
B. It requires more resources than asymmetric ancryption
C. It uses the same key to enctypt and decrupt traffic
D. It uses a public key and a pricate key to encrypt and decrypt traffic.
E. It is faster than asymmetric encryption
【多选题】
which two characteristics of PVLAN are true？___
A. Promiscuous porta can communicate with PVLAN ports.
B. Isolated ports cannot communicate with other ports on the same VLAN
C. Community ports have to be a part of the trunk.
D. They require VTP to be enabled in server mode
E. PVLAN ports can be configured as Ether Channel ports
【多选题】
What are two options for running Cisco SDM?___
A. Running SDM from a mobile device
B. Running SDM from within CiscoWorks
C. Running SDM from a router's flash
D. Running SDM from the Cisco web porta
E. Running SDM from a PC
【多选题】
Which two options are the primary deployment modeles for mobile device management？___
A. multisite
B. cloud-based
C. on premises
D. hybrid cloud basedo
E. single site
【多选题】
Drag the recommendation on the left to the Cryptographic algorithms on the right， Options will be used more than once.___
A. Avoid——————————————DES，MD5
B. Legacy——————————————SDES，SHA1，HMAC-MD5
【多选题】
Which two are valid types of vLans using PVLANS ?___
A. Community VLAN
B. Backup VLAN
C. Secondary VLAN
D. Isolated VLAN
E. Isolated VLAN
【多选题】
Which two commands are used to implement Resilient lOS Configuration ___
A. Secure boot-config
B. copy running-config tftp
C. copy flash:ios bin tftp
D. copy running-config startup-config
E. secure boot-image
【多选题】
Which two types of firewalls work at layer 4 and above ？___
A. Stateful inspection
B. Network Address Translation
C. Circuit-Level gateway
D. Static packet filter
E. Application Level firewall
【多选题】
Which two default settings for port security are true ？___
A. Violation is Protect
B. Violation is Restrict
C. Violation is Shutdown
D. Maximum number of MAC addresses is 2
E. Maximum number of MAC addresses is 1
【多选题】
Which two are characteristics of RADIUS？___
A. Uses UDP ports 1812 /1813
B. Uses TCP port 49
C. Uses UDP port 49
D.
E. ncrypts only the password between user and server
【多选题】
When setting up a site-to-site VPN with PSK authentication on a Cisco router， which two elements must be configured under crypto map？___
A. pfs
B. nat
C. reverse route
D. peer
E. transform-set
【多选题】
When using the Adaptive Security Device Manager（ASDM), which two options are available to add a new root certificate？___
A. Install from SFTP server
B. Usehttps
C. Install from a file
D. Use LDAP
E. Use SCEP
【多选题】
Which two SNMPv3 services support its capabilities as a secure networ k manage protocol？ ___
A. access control
B. the shared secret key
C. authentication
D. authorization
E. accounting
【多选题】
Which two statements about routed firewall mode are true ？___
A. The firewall acts as a routed hop in the network
B. This mode conceals the presence of the firewall
C. The firewall requires a unique iP address for each interface
D. This mode allows the firewall to be added to an existing networ k with minimal additional configuration By default， this mode permits most traffic to pass throug
【多选题】
Which two statements describe DHCP spoofing attacks？___
A. They are used to perform man-in- the-middle attacks
B. They can access most network devices
C. They can modify the flow of traffic in transit. LNGKAIG
D. They protect the identity of ti attacker by masking the DHCP address
E. They can physically modify the network gateway
【多选题】
Which two types of VLANs using PVLANs are valid？___
A. isolated
B. promiscuous
C. backup
D. secondary
E. community
【多选题】
What are two limitations of the self-zone policies on a zone-based firewall？___
A. They are unable to block Https traffic
B. They restrict SNMP traffic.
C. They are unable to support Https traffic
D. They are unable to implement application inspection
E. They are unable to perform rate limiting
【多选题】
Which two descriptions of TACACS+ are true？ ___
A. The TACACS+ header is unencrypted
B. It combines a uthentication and authorization
C. It uses TCP as its transport protocol
D. Only the password is encrypted.
E. It uses UDP as its transport protocol.
【多选题】
Which two actions does an IPS perform？ ___
A. it spans the traffic
B. it reflects the traffic back to the sender
C. it encrypts the traffic
D. it terminates the user session or connection of the attacker
E. it reconfigures a device to block the traffic
【多选题】
In which form of fraud does an attacker try to learn information such as login credenti account information by ma squerading as a reputable entity or person in email， IM or communication channels ?___
A. phishing
B. Smurfit
C. Hacking
D. Identity Spoofing
【多选题】
Which two ESA services are available for incoming and outgoing mails ？___
A. anti-DoS
B. reputation filter
C. antispam
D. content filter
E. DLP
【多选题】
What are two reasons to recommend SNMPv 3 over SNMPv2？___
A. SNMPv3 is secure because you can configure authe ntication and privacy
B. SNMPv3 is insecure because it send in formation in clear text
C. SNMPv2 is insecure because it send information in clear text
D. SNMPv3 is a Cisco proprietary protocol
E. SNMPv2 is secure because you can configure authentication and privacy
【多选题】
Which two actions can a zone- based firewall apply to a packet as it transits a zone pair？___
A. drop
B. inspect
C. queue
D. quarantine
【单选题】
Which security principle has been violated if data is altered in an unauthorized manner？___
A. accountability
B. confidentiality
C. availability
D. integrity
【单选题】
Which IKE Phase 1 parameter can you use to require the site-to-site VPN to use a pre-shared ？___
A. encryption
B. authentication
C. group
【单选题】
Which command successfully creates an administrative user with a password of "cisco"on a Cisco router?___
A. username Operator privilege 7 password cisco
B. username Operator privilege 1 password cisco
C. username Operator privilege 15 password cisco
D. username Operator password cisco privilege 15
推荐试题
【单选题】
使用WireShark软件抓网络包时，过滤指定的IP地址的消息的命令是（ ）___
A. ip.addr==XXX.XXX.XXX.XXX
B. host XXX.XXX.XXX.XXX
C. sip
D. ad
E.
F.
【单选题】
使用路由器将一个交换网络分成两个的结果是___
A. 增加了冲突域的数量
B. 降低了广播域的数量
C. 连接了网段1和网段2的广播
D. 隔断了网段1和网段2之间的广播
E.
F.
【单选题】
使用子网规划的目的是（ ）___
A. 将大的网络分为多个更小的网络
B. 提高IP地址的利用率
C. 增强网络的可管理性
D. 以上都是
E.
F.
【单选题】
ZXCTN设备上C-POS单板是将（ ），通道化单板是将（ ）___
A. 下游业务的E1信号映射至STM－1信号；下游业务的FE信号映射至STM－1信号
B. 下游业务的FE信号映射至STM－1信号；下游业务的E1信号映射至STM－1信号
C. 下游业务的E1信号映射至FE信号；下游业务的FE信号映射至STM－1信号
D. 下游业务的FE信号映射至STM－1信号；下游业务的FE信号映射至STM－1信号
E.
F.
【单选题】
下列PTN950设备中提供电接口板的为（ ）___
A. EF8F
B. D2EF8F
C. D2EG2
D. EF8T
E.
F.
【单选题】
数据分段是OSI七层模型中的_____完成的___
A. 物理层
B. 网络层
C. 传输层
D. 接入层
E.
F.
【单选题】
数据封装的正确过程是（）___
A. 数据段->数据包->数据帧->数据流->数据
B. 数据流->数据段->数据包->数据帧->数据
C. 数据->数据包->数据段->数据帧->数据流
D. 数据->数据段->数据包->数据帧->数据流
E.
F.
【单选题】
私有AS号的范围：（ ）___
A. 65410-65535
B. 1-64511
C. 64512-65535
D. 64511-65535
E.
F.
【单选题】
私有corba的配置域管理工具是什么（ ）___
A. client
B. zpath
C. killer
D. itadmin
E.
F.
【单选题】
私有corba的自测工具叫什么（ ）___
A. zpath
B. client
C. killer
D. eot
E.
F.
【单选题】
私有corba升级的时候不需要备份的有（ ）___
A. EMS CORBA SERVER文件夹
B. 向上层网管对接时提供的工程名
C. 当前corba的安装包
D. 当前网管的OTNM2000安装包
E.
F.
【单选题】
私有corba使用的端口是多少（ ）___
A. 60000
B. 50000
C. 40000
D. 30000
E.
F.
【单选题】
私有corba有几个服务（ ）___
A. 1个
B. 2个
C. 3个
D. 4个
E.
F.
【单选题】
私有接口在没有设置相应的用户名和密码的情况下，用户名可以自定义，我们自定义用户名的密码为（ ）___
A. admin
B. vislecaina
C. WELCOME
D. 123qwer
E.
F.
【单选题】
添加静态路由的命令为（ ）___
A. add -p 目的地址 mask 掩码 下一跳
B. add -p 源地址 mask 掩码 下一跳
C. add -p 目的 地址 掩码 下一跳
D. add -p 源地址 掩码 下一跳
E.
F.
【单选题】
下列PTN产品的物理链路与保护技术对应关系正确的是___
A. POD41，LAG
B. CD1，LAG
C. 10GE，LAG
D. GE，LMSP
E.
F.
【单选题】
包过滤防火墙不能 （ ）___
A. 防止企业外网用户访问内网的主机
B. 防止感染了病毒的软件或文件的传输
C. 防止企业内网用户访问外网的主机
D. 读取通过防火墙的数据内容
E.
F.
【单选题】
通过network命令把路由信息注入到BGP 的路由表，并通告给其它BGP 邻居的条件是（ ）___
A. 通告的路由必须下一跳可达
B. 通告的路由必须是本地直连路由
C. 通告的路由必须是非本地直连路由
D. 通告的路由必须是存在于IP 路由表
E.
F.
【单选题】
通过网页登陆的VPN属于哪种VPN（ ）___
A. pptp
B. L2tp
C. ssl
D. ipsec
E.
F.
【单选题】
同一个MSTP网络中，两个骨干节点所带的扩展域ID( )___
A. 可以相同
B. 不能相同
C. 既可相同又可不同
D. 没关系
E.
F.
【单选题】
同一故障造成5条以上AAA级互联网专线业务中断超过2小时的，属于（ ）___
A. 一般故障
B. 严重故障
C. 重大故障
D. 可暂缓处理
E.
F.
【单选题】
我国基群速率为（）___
A. 64Kb/s
B. 1.5Mb/s
C. 2Mb/s
D. 155Mb/s
E.
F.
【单选题】
下列单板中不可以对接的组合是（ ）___
A. ET1D与ET1S
B. EF1与EFS0
C. EF1与ET1
D. EMS0与EFT
E.
F.
【单选题】
下列关于IPv6协议优点的描述中，准确的是( )___
A. IPv6协议支持光纤通信
B. IPv6协议支持通过卫星链路的Internet连接
C. IPv6协议具有128个地址空间，允许全局IP地址出现重复
D. IPv6协议解决了IP地址短缺的问题
E.
F.
【单选题】
下面那一个TCP/UDP端口范围将被客户端程序使用.（ ）___
A. 1到1023
B. 1024 and above
C. 1到256
D. 1到65534
E.
F.
【单选题】
下面选项不属于子网操作的是：（ ）___
A. 通道搜索
B. 子网反算
C. 重做网元交叉
D. 网元交叉
E.
F.
【单选题】
下列板卡中不具备背板VC12总线处理能力的是哪个 ___
A. P240EOS
B. P240FE
C. ESW-2GE
D. EOP-FE8E1
E.
F.
【单选题】
下面有关BGP 协议描述，错误的是（ ）___
A. BGP 是一个很健壮的路由协议
B. BGP 可以避免路由环路
C. BGP 只支持手动聚合
D. BGP 是继承EGP 而来的
E.
F.
【单选题】
采用 CSMA/CD 的网络中发生冲突时，需要传输数据的主机在回退时间到期后做何反应.（ ）___
A. 造成冲突的主机重新传输最后16个帧
B. 主机延长其延迟时间以便快速传输。
C. 主机恢复传输前侦听模式
D. 造成冲突的主机优先发送数据
E.
F.
【单选题】
下面有关生成树协议的互通性描述，错误的为 ___
A. ＲＳＴＰ可以和ＳＴＰ完全互通
B. 运行ＲＳＴＰ的交换机，如果和运行ＳＴＰ的交换机互联，则运行ＲＳＴＰ的交换机会将该端口迁移到ＳＴＰ模式下
C. 与ＳＴＰ桥相连的端口发送的是ＳＴＰ报文
D. ＲＳＴＰ报文和ＳＴＰ报文完全相同，所以能够完全互通
E.
F.
【单选题】
下面有关子网交叉和网元交叉的描述正确的有（ ）___
A. 子网交叉和网元交叉存储在数据库中不同的位置
B. 在子网交叉界面中对业务做了修改后，需要在网元交叉中手工进行相应的修改
C. 在网元交叉中改动了业务配置后，子网交叉中自动进行了相应的改动
D. 在子网交叉配置好业务后，进行交叉下载时网管软件会自动生成相应的网元交叉并下发到设备
E.
F.
【单选题】
向通道保护环的触发条件是（ ）告警___
A. MS-AIS
B. B、MS-RDI
C. C、LOS
D. D、TU-AIS
E.
F.
【单选题】
性能历史数据最长可以保存（ ）时间记录___
A. 一年
B. 一月
C. 一日
D. 15分钟
E.
F.
【单选题】
修改了数据库Ip后，monitor服务的Ip在哪修改（ ）___
A. monitor.ini
B. dumper.ini
C. otnm.ini
D. replication.ini
E.
F.
【单选题】
修改数据库ip后下列哪项ip不用修改（ ）___
A. [BROWSER]DATABASE_SERVER
B. [DTSERVER]BIND_TO_IP
C. [Manager2]Local1 =
D. 物理网卡Ip
E.
F.
【单选题】
需要基于Layer7 的负载均衡的原因正确的是（ ）___
A. 会话保持的需要：很多应用单靠Layer4 层的信息不足以分辨出会话的相关性
B. 应用安全的需要：应用级的安全要求负载均衡器必须能检查、分析应用层的信息，并以此作为流量分发、访问控制的依据。
C. 服务器、应用健康检查的需求：负载均衡器要及时发现服务器能否正常响应访问请求作出正确的响应，这需要对数据包的应用层进行分析才能实现。
D. 以上都是
E.
F.
【单选题】
巡检要求是：每月及重大节日前定期检查环境、物理设备检查、数据库检查、操作系统检查、防火墙安全策略、远程访问信息、系统性能检查等。是哪一类( )___
A. A类
B. B类
C. C类
D. D类
E.
F.
【单选题】
ZXCTN6000系列设备的程序文件zxr10.zar存放在 ( )___
A. /flash/img
B. /flash/
C. /flash/data
D. /flash/cfg
E.
F.
【单选题】
下列不属于SDH设备三大基本功能的是： ( )___
A. 复接
B. 交叉连接
C. 线路传输
D. 告警产生
E.
F.
【单选题】
业务接入IP承载网流程中总部分配网络资源属于那个阶段.（ ）___
A. 方案设计阶段
B. 项目可研阶段
C. 割接准备阶段
D. 割接实施阶段
E.
F.
