相关试题
【单选题】
宏病毒可感染下列——的文件。___
A. exe
B. doc
C. bat
D. txt
【单选题】
以下概念正确的是___
A. 密码是通信双方按约定的法则进行信息特殊变换的一种重要保密手段
B. 密码学是研究编制密码和破译密码的技术科学
C. 编码学应用于编制密码以保守通信秘密的
D. 以上都是
【单选题】
以下解释对应正确的是___
A. Accept:允许数据包或信息通过
B. Reject：拒绝数据包或信息通过，并且通知信息源该信息被禁止
C.
D. rop：直接将数据包或信息丢弃，并且不通知信息源
【单选题】
典型的入侵检测产品有___
A. snort
B. ISS RealSecure
C. Watcher
D. 以上都是
【单选题】
虚拟专用网的类型有___
A. 远程访问虚拟专用网
B. 企业内部虚拟网
C. 企业扩展虚拟专用网
D. 以上都是
【单选题】
以下解释正确的是，___
A. VPN的核心是安全隧道技术
B. VPN加密技术是用户身份认证的关键
C. Vpn隧道技术只有第二隧道
D. VPN隧道技术只有第三隧道
【单选题】
以下解释正确的是___
A. SecEvent.evt 安全日志文件
B. AppEvent.evt 应用程序日志
C. SysEvent.evt 系统日志
D. 以上都是
【单选题】
计算机取证的常见工具正确的是。___
A. Enae
B. Enase
C. Enasse
D. nasse
【单选题】
计算机取证的常见工具的是___
A. SafeBack
B. Enase
C. NetMonitor
D. 以上都是
【单选题】
日志和审计分析工具正确的是。___
A. Swotch
B. Swatch
C. PsLeglist
D. nasse
【单选题】
基于网络的入侵检测系统担负着保护整个网段的任务，是安全策略实施中的重要组件，它具备以下特性___
A. 实施成本较低
B. 全面而准确的识别攻击特性
C. 攻击者不易转移证据
D. 以上都是
【单选题】
以下是密码学技术的基础性技术的是___
A. 身份认证
B. 数据完整性检验
C. 口令交换
D. 以上都是
【单选题】
在密码学的发展历史中出现过古典密码其中明文axy的密文应该是？___
A. GCD
B. CCD
C. FCD
D. OCD
【单选题】
现代密码学通过数学方法提出了现代密码学体制模型，下面不属于利用的是___
A. 明文
B. 接收源
C. 信息源
D. 密钥源
【单选题】
属于著名对策加密算法的是？___
A. DES
B. RC4
C. AEC
D. Blowfish
【单选题】
到目前为止。应用最为广泛的公开密钥密码体制是___
A. DES
B. AES
C. RSA
D.
E. IGamal
【单选题】
以下是基于生理特征的认证的是___
A. 指纹
B. 声音
C. 视网膜
D. 以上都是
【单选题】
企业防火墙可以使___与Internet之间相互隔离，限制彼此的互相访问从而保护内部网络
A. LAN
B. WAN
C. WLAN
D. Web
【单选题】
防火墙技术中有包过滤防火墙、代理服务器防火墙等。以下属于包过滤防火墙的是___
A. 自适应防火墙
B. 动态包过滤防火墙
C. 电路级网关
D. 混合型防火墙
【单选题】
蜜罐有4种不同的配置方式，下述不属于的是___
A. 加强服务
B. 弱化系统
C. 诱骗服务
D. 用户模式服务器
【单选题】
常用的蜜罐工具有___
A. 欺骗工具包
B. BOF
C. 幽灵
D. 以上都是
【单选题】
计算机病毒是？___
A. 被损坏的程序
B. 硬件故障
C. 一段特制的程序
D. 芯片霉变
【单选题】
计算机病毒的危害主要造成。___
A. 磁盘破坏
B. 程序和数据的破坏
C. 计算机用户的伤害
D. CPU的损坏
【单选题】
新买回来的未格式化的软盘，可能会有以下哪种情况___
A. 可能会有计算机病毒
B. 与带病毒的软盘放在一起会有计算机病毒
C. 一定给没有计算机病毒
D. 经那过带病毒的软盘的手碰过后会感染计算机病毒
【单选题】
计算机病毒一般由___四大部分组成的。
A. 感染模块、执行模块、触发模块、破坏模块
B. 感染模块、触发模块、破坏模块、引导模块
C. 感染模块、执行模块、破坏模块、引导模块
D. 触发模块、破坏模块、引导模块、执行模块
【单选题】
计算机病毒生命周期中，存在哪两种状态？___
A. 静态和潜状态
B. 静态和动态
C. 潜状态和发作态
D. 发作态和动态
【单选题】
在Window32位操作系统中，其EXE文件中的特殊表达为。___
【单选题】
能够感染EXE、COM文件的病毒属于？___
A. 网络型病毒
B. 蠕虫型病毒
C. 文件型病毒
D. 系统引导型病毒
【单选题】
下列描述不正确的是？___
A. 不存在能够防治未来的所有的病毒的发病毒软、硬件
B. 病毒产生在前，反病毒手段相对滞后
C. 现在的杀毒软件能够查杀未知病毒
D. 数据备份是防治数据丢失的重要手段
【单选题】
蠕虫和从传统计算机病毒的区别主要体现在___。
A. 存在形式
B. 传染机制
C. 传染目标
D. 破坏方式
【单选题】
下列___不是常用程序的默认端口。
A. 80
B. 8080
C. 23
D. 21
【单选题】
实现DoS攻击的手段有哪些？___
A. 滥用合理的服务请求
B. 制造高流量无用数据
C. 利用传输协议缺陷
D. 以上都对
【单选题】
SYN洪水攻击是利用什么特性来发动攻击的？___
A. IP头的RST位
B. 主机自动进行回复的服务
C. 三次握手
D. 广播地址的特性
【单选题】
泪滴也称为分片攻击，它是一种典型的利用___的漏洞进行拒绝服务攻击的方式。
A. IMCP协议
B. TCP/IP协议
C. ARP协议
D. HTTP协议
【单选题】
以下选项中，不属于DoS技术攻击的是___
A. 组合攻击
B. UDP洪水
C. 泪滴
D. SYN洪水
【单选题】
以下对拒绝服务攻击的分类叙述正确的是___
A. 按漏洞利用方式分类，可分为特定资源消耗类和暴力攻击类
B. 按攻击数据包发送速率变化方式分类，可分为固定速率和可变速率
C. 按攻击可能产生的影响，可分为系统或程序奔溃类和服务降级类
D. 以上都对
【单选题】
构造一个特殊的SYN包，需要什么___
A. 源地址和目标地址相同
B. 源代码和目标代码相同
C. 数据源
D. 主机
【单选题】
以下选项中，属于DDoS工具产生的网络通信信息的是？___
A. 检测通信
B. 查询请求通信
C. 控制信息通信
D. 数据包
【单选题】
以下选项中，可被WinNuke攻击的目标端口是？___
A. 139
B. 138
C. 113
D. 以上都对
【单选题】
以下选项中，不属于分布式拒绝服务攻击的防御方法的是？___
A. 优化网络和路由结构
B. 保护主机系统安全
C. 滥用合理的服务请求
D. 与因特网服务供应商合作
推荐试题
【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
【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
