【判断题】
系统的无阻尼固有频率与系统的质量和刚度无关，只与系统受到的激励有关
A. 对
B. 错
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答案
B
解析
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【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？___
A. SHA
B. IPSec
C.
D. ES
【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
【单选题】
信息技术对传统教育方式带来了深刻的变化。以下叙述中，不正确的是___。
A. ：学习者可以克服时空障碍，实现随时、随地、随愿学习
B. ：给学习者提供宽松的、内容丰富的、个性化的学习环境
C. ：通过信息技术与学科教学的整合，激发学生的学习兴趣
D. ：教育信息化的发展使学校各学科全部转型为电子化教育
【单选题】
在信息收集过过程中，需要根据项目的目标把握数据___要求，既不要纳入过多无关的数据，也不要短缺主要的数据：既不要过于简化，也不要过于繁琐。
A. ：适用性
B. ：准确性
C. ：安全性
D. ：及时性
【单选题】
某商场记录（统计）销售情况的数据库中，对每一种商品采用了国家统一的商品编码。这种做法的好处不包括___
A. ：节省存储量
B. ：确保唯一性
C. ：便于人识别
D. ：便于计算机处理
【单选题】
某地区对高二学生举行了一次数学统考，并按“成绩一人数”绘制了分布曲线。考试成绩呈___，分布比较合理。
A. ：比较平坦的均匀分布
B. ：两头高中间低的凹型分布
C. ：大致逐渐降低的分布
D. ：两头低中间高的正态分布
