【单选题】
How do you verify TaCACS+ connectivity to a device?___
A. You successfully log in to the device by using the local credentials
B. You connect via console port and receive the login prompt.
C. You connect to the device using SSH and receive the login prompt.
D. You successfully log in to the device by using ACS credentials
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相关试题
【单选题】
Which term best describes the concept of preventing the modification of data in transit and in storage?___
A. availability
B. confidentially
C. fidelity
D. integrity
【单选题】
Which loS command is used to define the authentication key for ntp?___
A. switch(config )#ntp authentication-key 1 mds Clcs
B. switch(config )#ntp authenticate
C. switch(config)#ntp trusted-key 1
D. switch(config)#ntp source 192.168.0.1
【单选题】
What is true about the cisco lOS Resilient Configuration feature ?___
A. The feature can be disabled through a remote session
B. There is additional space required to secure the primary cisco lOS image file.
C. The feature automatically detects image or configuration version mismatch.
D. Remote storage is used for securing files
【单选题】
When is the default deny all policy an exception in zone-based firewalls?___
A. when traffic terminates on the router via the self zone
B. when traffic traverses two interfaces in different zones
C. when traffic traverses two interfaces in the same zone
D. when traffic sources from the router via the self zone
【单选题】
.If an access port is assigned as an isolated port in a PVLAN, which network ports can it communicate with?___
A. promiscuous ports in the same PLVAN
B. isolated ports in the same PVLAN
C. all ports in the same PAVLAN at ILAR
D. all ports in the adjacent PVLAN
【单选题】
Which IPSEC mode is used to encypt traffic directly between a client and a server VPN endpoint?___
A. quick mode
B. transport mode
C. aggressive mode
D. tunnel mode
【单选题】
Which command do you enter to verify that a vpn connection is established between two endpoints and that the connection is passing traffic? ___
A. Firewall#sh crypto session
B. Firewall#debug crypto isakmp
C. Firewall#tsh crypto ipsec sa
D. Firewall#sh crypto isakmp sa
【单选题】
which type of Pvlan port allows communication from all port types?___
A. isolated
B. in -line
C. community
D. promiscuous
【单选题】
Which command do you enter to configure your firewall to conceal internal addresses?___
A. no ip directed-broadcast
B. no ip logging facility
C. no proxy-arp
D. no ip inspect audit-trial
E. no ip inspect
F. route
【单选题】
Which feature defines a campus area network? ___
A. It has a limited number of segments.
B. It has limited or restricted Internet access
C. It lacks ex1ternal connectivity.
D. It has a single geographic location
【单选题】
What technology can you use to provide data confidentiality data integrity and data origin authentication on your network?___
A. IPSec
B. Certificate Authority
C. IKE
D. Data
E. ncryption Standards
【单选题】
which standard is a hybrid protocol that uses oakley and skerne ke y exchanges is an ISAKMP framework?___
【单选题】
What is the actual los privilege level of User Exec mode?___
【单选题】
What is the effect of the asa command crypto isakmp nat-traversal?___
A. It opens port 500 only on the out side interface
B. It opens port 500 only on the inside interface
C. It opens port 4500 on all interfaces that are IPSec enabled
D. It opens port 4500 only on the out side interfac
【单选题】
Which Fire POWER preproce ssor engine is used to prevent SYN attacks?___
A. Inline normalization
B. IP Defragmentation
C. Ports can
D. etection
【单选题】
Which NAT type allows objects or groups to reference an IP address ?___
A. identity NAt
B. static NAT
C. dynamic
D. dynamic NAT
【单选题】
Which Auto NAT policies are processed first?___
A. Dynamic NAT with longest prefix
B. Dynamic NAT with shortest prefix
C. static NAT with longest prefix
D. static NAT with shortest prefix
【单选题】
Which feature allows a dynamic Pat pool to se lect the next address in the pat pool instead of the next port of an existing address?___
A. next IP
B. round robin
C. dynamic rotation
D. NAT address rotation
【单选题】
Which IPS detection method can you use to detect attacks that are based on the attackers IP address?___
A. anomally-based
B. policy-based
C. signature-based
D. reputation-based
【单选题】
Which type of encryption technology has the broadest platform support?___
A. software
B. middleware
C. file-level
D. hardware
【单选题】
Which type of address translation supports the initiation of comm unications bidirectionally ?___
A. multi-session PAT
B. dynamic NAT
C. dynamic PAT
D. static NAT
【单选题】
Which label is given to a person who uses existing computer scripts to hack into computers while lacking the expertise to write the own?___
A. script kiddy
B. white hat hacker
C. hacktivist
D. phreaker
【单选题】
What is the primary purpose of a defined rule in an IPS?___
A. to configure an event action that takes place when a signature is triggered
B. to define a set of actions that occur when a specific user logs in to the system
C. to configure an event action that is pre-defined by the system administrator
D. to detect internal attacks
【单选题】
Which option is the default valuce for the Diffie- Hell man group when configuring a site-to-site VPn on an asa device ?___
A. Group 1
B. Group 2
C. Group 5
D. Group 7
【单选题】
Which feature filters CoPP packets?___
A. access control lists
B. class maps
C. policy maps
D. route maps
【单选题】
Which command is used in global configuration mode to enable AAA?___
A. configure-model aaa
B. configure aaa-modelA
C. aaa new-model
D. aaa
E. XEC
【单选题】
Which statement about the given configuration is true?___
A. The single-connection command causes the device to establish one connection for all TACACS
B. The single-connection command causes the device to process one TacAcs request and then move to the next server
C. The timeout com mand causes the device to move to the next server after 20 seconds of TACACS inactive
【多选题】
What are two well-known security terms?___
A. phishing//网络钓鱼
B. ransomware //勒索软件
C. BPDU guard
D. LACP
E. hair-pinning
【多选题】
Which two commands must you enter to securely archive the primary bootset of a device___
A. router(config )#secure boot-config
B. router(config)#auto secure
C. router(config)#secure boot-image
D. router(config)#service passw ord-encryption
【多选题】
Which two functions can SIEM provide ?___
A. correlation between logs and events from multiple systems
B. event aggregation that allows for reduced log storage requirements
C. proactive malware analysis to block malicious traffic
D. dual-factor authentication
E. centralized firewall management
【多选题】
Which two features of Cisco Web Reputation tracking can mitigate web-based threats?___
A. buffer overflow filterin dhsuowip
B. Bayesian filters
C. web reputation filters
D. outbreak filtering
E. exploit filtering
【多选题】
What are two challenges when deploying host- level IPS? ___
A. The deployment must support multiple operating systems.
B. It is unable to provide a complete networ k picture of an attack.
C. It is unable to determine the outcome of e very attack that it detects
D. It does not provide protection for offsite computers
E. It is unable to detect fragmentation attacks
【多选题】
Which technology can be used to rate data fidelity and to provide an authenticated hash for data?___
A. file reputation
B. file analysis
C. signature updates
D. network blocking
【多选题】
Which two statements about host-based iPS solutions are true?___
A. It uses only signature-based polices
B. It can be deployed at the perimeter.
C. It can be have more restrictive policies than network-based IPS
D. it works with deployed firewall
E. It can generate alerts based on be havior at the de sto
【多选题】
When two events would cause the state table of a stateful firewall to be updated? ___
A. when a packet is evaluated against the outbound access list and is denied
B. when a con nection is created
C. when rate-limiting is applied
D. when a connection s timer has expired within the state table.
E. when an outbound packet is forwarded to the outbound interface
【多选题】
Which two characteristics apply to an intrusion Prevention System(IPS)?___
A. Cannot drop the packet on its own
B. Cabled directly inline with the flow of the network traffic
C. Runs in promiscuous mode wat
D. Does not add delay to the original traffic
E. Can drop traffic based on a set of rules
【多选题】
crypto ipsec trans form-set myset esp-md5-hmac esp-aes-256,What are two effects of the given command?___
A. It configures authentication use AES 256.
B. It configures authentication to use MD5 HMAC
C. It configures authentication use AES 256.
D. It configures encryption to ase MD5 HMAC.
E. It configures encryption to use AES 256
【多选题】
your security team has discovered a malicious program that has been harvesting the CEos email messages and the com pany 's user database for the last 6 months. What are two possible types of attacks your team discovered?___
A. social activism
B. EPolymorphic Virus
C. advanced persistent threat
D. drive-by spyware
E. targeted malware
【单选题】
以下关于数据处理的叙述中,不正确的足___。
A. :数据处理不仅能预测不久的未来,自时还能影响未
B. :数据处理和数据分析可以为决策提供真知灼见
C. :数据处理的重点应从技术角度去发现和解释数据蕴涵的意义
D. :数据处理足从现实世界到数据,冉从数据到现实世界的过程
【单选题】
“互联网十制造”是实施《中国制造2025》的重要措施。以下对“互联网十制造”主要特征的叙述中,不正确的是___。
A. :数字技术得到普遍应用,设计和研发实现协同与共享
B. :通过系统集成,打通整个制造系统的数据流、信息流
C. :企业生产将从以用户为中心向以产品为中心转型
D. :企业、产品和用户通过网络平台实现联接和交互
推荐试题
【单选题】
QUESTION 471 Trunk类型的端口和Hybrid类型的端口在接收数据帧时的处理方式相同。___
【单选题】
QUESTION 472 以下哪种PPPoE的报文是非单播方式发送的?___
A. PADS
B. PADI
C. PADO
D. PADR
【单选题】
QUESTION 474 下图为数据包在IPSec VPN中的封装格式,这种类型的数据包是使用IPSec VPN的哪种模式封装的?___
A. 隧道模式
B. 通用模式
C. 传输模式
D. 此封装错误
【单选题】
QUESTION 475 以下哪种SNMP报文是由被管理设备上的Agent发送给NMS的?___
A. Get-Next-Request
B. Get-Request
C. Set-Request
D. Response
【单选题】
ACL不会过滤设备自身产生的访间其它设备的流量;只过滤转发的流量,转发的流量中包括其它设备访间该 设备的流量。___
【单选题】
QUESTION 477 二层ACL的编号范围是?___
A. 4000~4999
B. 6000~6031
C. 2000-2999
D. 3000-3999
【单选题】
QUESTION 479 OSPFv3协议本身不提供认证功能。___
【单选题】
QUESTION 480 IPv6中的流标签字段、源地址字段和目的地址字段一起为特定数据流指定了网络中的转发路径。___
【单选题】
QUESTION 481以下哪个IPv6地址是组播地址?___
A. FF02::2E0:FCFF:FEEF:FEC
B. FE80::2E0:FCFF:FEEF:FEC
C. 2000::2E0:FCFF:FEEF:FEC
D. FC00::2E0:FCFF:FEEF:FEC
【单选题】
QUESTION 482 共享介质型网络使用哪一种技术进行数据转发?___
A. CDMA/CD
B. CSMA/AC
C. TDMA/CD
D. CSMA/CD
【单选题】
QUESTION 483 下列哪一个IPv4地址是A类地址?___
A. 100.1.1.1
B. 172.16.1.1
C. 127.1.1.1
D. 192.168.1.1
【单选题】
QUESTION 485 以上是AR2200路由器的display startup信息,关于这些信息,说法错误的是()。___
A. 正在运行的配置文件没有保存
B. 设备此次启动使用的系统文件是ar2220-/200r003c00spc200.cc
C. 设备下次启动时的系统文件可以使用命令“startup system software <atartup-software-name)”来修改
D. 设备下次启动时的系统文件不能被修改
【单选题】
QUESTION 487 下面关于生成树协议中Forwarding状态描述错误的是()。___
A. Forwarding状态的端口可以发送BPDU报文
B. Forwarding状态的端口不学习报文源MAC地址
C. Forwarding状态的端口可以转发数据报文
D. Forwarding状态的端口可以接收BPDU报文
【单选题】
QUESTION 488 交换网络中STP协议的桥ID如下,拥有下列哪个桥ID的交换机会成为根桥?___
A. 32768 00-01-02-03-04-AA
B. 32768 00-01-02-03-04-BB
C. 32768 00-01-02-03-04-CC
D. 4096 00-01-02-03-04-DD
【单选题】
QUESTION 489 RSTP协议使用P/A机制加快了上游端口转到Forwarding状态的速度,但是却没有出现环路的原因是什么?___
A. 引入了边缘端口
B. 缩短了Forward Delay的时间
C. 通过阻塞自己的非根端口来保证不会出现环路
D. 加快了端口角色选举的速度
【单选题】
下列协议中属于动态IGP路由协议的是?___
A. Static
B. BGP
C. OSPF
D. Direct
【单选题】
QUESTION 492 路由器进行数据包转发时需要修改数据包中的目的IP地址。___
【单选题】
QUESTION 493 route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 20,关于此命令说法正确的是?___
A. 该路由一定会出现在路由表当中
B. 该路由的目的网络为10.0.12.2/32
C. 该路由的优先级为100
D. 该路由目的网络的掩码长度为32位
【单选题】
QUESTION 494关于OSPF协议DR的说法正确的是?___
A. DR一定是网络中优先级最高的设备
B. DR的选举是抢占式的
C. Router ID,值越大越优先被选举为DR
D. 一个接口优先级为0,那么该接口不可能成为DR
【单选题】
QUESTION 495下列关于华为设备中静态路由的优先级说法错误的是()。___
A. 静态路由优先级的缺省值为60
B. 静态路由的优先级值为255表示该路由不可用
C. 静态路由优先级值的范围为0-255
D. 静态路由的优先级分为内部优先级和外部优先级,管理员可以修改外部优先级
【单选题】
QUESTION 497LACP协议优先级如图所示,交换机A和交换机B采用LACP模式的链路聚合,并且所有接口加入链路聚合 组,同时设置最大活动端口数量为3,则交换机A的哪个端口不是活动端口?___
A. G0/0/2
B. G0/0/3
C. G0/0/0
D. G0/0/1
【单选题】
QUESTION 498如果一个以太网数据帧的Length/Type=0x8100,下列说法正确的是?___
A. 这个数据帧一定携带了VLAN TAG
B. 这个数据帧上层一定存在TCP首部
C. 这个数据帧上层一定存在UDP首部
D. 这个数据帧上层一定存在IP首部
【单选题】
QUESTION 499下列关于Trunk端口与Access端口描述正确的是()。___
A. Trunk端口只能发送tagged帧
B. Trunk端口只能发送untagged贞
C. Access端口只能发送tagged帧
D. Access端口只能发送untagged帧
【单选题】
QUESTION 502 一个公司有50个私有IP地址,管理员使用NAT技术将公司网络接入公网,但是该公司仅有一个公网地址,则 下列哪种NAT转换方式符合需求?___
A. easy-ip
B. NAPT
C. 动态转换
D. 静态转换
【单选题】
QUESTION 503 如图所示,私有网络中有一台Web服务器需要向公网用户提供HTTP服务,因此网络管理员需要在网关路由 器RTA上配置NAT以实现需求,则下面配置中能满足需求的是()。___
A. [RTA-Serial1/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
B. [RTA-Serial1/0/1]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
C. [RTA-Gigabitethernet0/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
D. [RTA-Gigabitethernet0/0/1]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
【单选题】
QUESTION 505 RADIUS使用以下哪种报文类型表示认证拒绝?___
A. Access-Reject
B. Access-Request
C. Access-Challenge
D. Access-Accept
【单选题】
QUESTION 507 如果ACL规则中最大的编号为12,缺省情况下,用户配置新规则时未指定编号,则系统为新规则分配的编 号为?___
【单选题】
QUESTION 508 如果两个IPSec VPN对等体希望同时使用AH和ESP来保证安全通信,则两个对等体总共需要构建多少个SA(安全联盟)?___
【单选题】
QUESTION 509 DHCPv6属于一种有状态地址自动配置协议。 ___
【单选题】
QUESTION 510 DHCPv6服务器在RA报文中包含管理地址配置标记(M),如果取值为1,则下列说法正确的是?___
A. 表示客户端启用DHCPv6有状态地址配置
B. 表示客户端需要通过无状态的DHCPv6来获取其它网络配置参数
C. 表示客户端启用IPv6无状态地址自动分配方案
D. 表示客户端需要通过有状态的DHCPv6来获取其它网络配置参数
【单选题】
QUESTION 511在OSI参考模型中,能够完成端到端差错检测和流量控制的是()。___
A. 传输层
B. 网络层
C. 数据链路层
D. 物理层
【单选题】
QUESTION 512应用数据经过数据链路层处理后称为?___
A. Segment
B. PDU
C. Frame
D. Packet
【单选题】
QUESTION 513 <Huawei>system-view [Hawei]user-interface console 0 [Huawei-ui-console0]history-command max-size 20 关于上面的配置,说法正确的是()___
A. history-command max-size 20是希望调整历史命令缓存的大小为20条
B. 历史命令缓存的默认大小是5条
C. 历史命令缓存的默认大小是5字节
D. 上述配置完成后,历史命令缓存可以保存20个字节的命令
【单选题】
QUESTION 514 STP协议中BPDU报文的目的MAC地址为?___
A. 01-80-C2-04-05-06
B. FF-FF-FF-FF-FF-FF
C. 00-80-C2-00-00-00
D. 01-80-C2-00-00-00
【单选题】
QUESTION 515如图所示,交换机使用默认参数运行STP,则下面哪个端口将会被选举为指定端口?___
A. 交换机A的G0/0/1端口
B. 交换机A的G0/0/2端口
C. HUB的E0/0/2端口
D. HUB的E0/0/1端口
【单选题】
QUESTION 516路由器在查找路由表时存在最长匹配原则,这里的长度指的是以下哪个参数?___
A. NextHopIP地址的大小
B. 路由协议的优先级
C. Cost
D. 掩码的长度
【单选题】
QUESTION 517OSPF协议用哪种报文来描述自己的LSDB?___
【单选题】
QUESTION 519 如下图所示的网络,两台交换机之间通过四条链路相连,COPPER指电接口,FIBR指光接口,则以下哪两 个接口可以实现链路聚合?___
A. G0/0/3和FE0/0/3
B. G0/0/3和G0/0/2
C. G0/0/2和FE0/0/3
D. G0/0/2和G0/0/1
【单选题】
QUESTION 520 某公司网络管理员想要把经常变换办公位置而导致经常会从不同的交换机接入公司网络的用户统一划分到 VLAN10,则应该采用下列哪种方式来划分VLAN?___
A. 基于协议划分VLAN
B. 基于MAC地址划分VLAN
C. 基于端口划分VLAN
D. 基于子网划分VLAN
【单选题】
正确的是()。___
A. 将使用“authentication-scheme au1”认证,如果“au1”被删除,将使用“au2”认证
B. 将使用“authentication-scheme au2”认证,如果“au2”被删除,将使用“au1”认证
C. 将使用“authentication-scheme au2”认证
D. 将使用“authentication-scheme au1”认证