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【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
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答案
D
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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
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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
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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
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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?___
A. SHA
B. IPSec
C.
D. ES
【单选题】
What is the actual los privilege level of User Exec mode?___
A. 1
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C. 5
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【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
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【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
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【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
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【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
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【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
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【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
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“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___。
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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
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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
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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
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钳工常用的手用工具有划线盘、錾子、手锯、锉刀、刮刀、扳手、螺钉旋具、锤子等
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根据用电安全条例,手电钻额定电压只允许220V。手电钻携带方便,操作简单,使用灵活,应用较广泛
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【判断题】
根据图样要求在毛坯或半成品上划出加工图形、加工界限或加工时找正用的辅助线称为划图
A. 对
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台式钻床具有较大的灵活性,能适应各种情况的钻孔需要。由于它的最低转速较高(一般不低于400r/min),适用于锪孔、铰孔
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B. 错
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操作钻床时不可带手套,袖口必须扎紧
A. 对
B. 错
【判断题】
划线的目的是划出清晰的尺寸界线以及尺寸与基准间的相互关系,既便于零件在机床上找正、定位,又使机械加工有明确的标志
A. 对
B. 错
【判断题】
平面划线是在零件的一个平面或几个互相平行的平面上划线。立体划线是在工作的几个互相垂直或倾斜平面上划线
A. 对
B. 错
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划线工具有划线平台、划针、划线盘与划规
A. 对
B. 错
【判断题】
高度游标尺,实际上是量高尺与划针盘的组合。划线脚与游标连成一体,前端镶有硬质合金,一般用于未加工面的划线
A. 对
B. 错
【判断题】
一般 V 形铁都是两块一副,即平面与 V形槽是在一次安装中加工的。V形槽夹角为 90°或 100°。V形铁也可当方箱使用
A. 对
B. 错
【判断题】
样冲用于划好的线条上打出小而均匀的样冲眼,以免零件上已划好的线在搬运、装夹过程中因碰、擦而模糊不清,影响加工
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B. 错
【判断题】
平面划线是用划线工具将图样按实物大小 1∶2划到零件上去的
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B. 错
【判断题】
用锯弓把原材料和零件割开,或在其上锯出沟槽的操作叫锯削
A. 对
B. 错
【判断题】
砂轮的旋转方向要正确,以使磨屑向上飞离,而不致伤人
A. 对
B. 错
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锯弓有固定式和可调式两种
A. 对
B. 错
【判断题】
磨削过程中,操作者应站在砂轮的正对面,而不要站在侧面或斜对面
A. 对
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【判断题】
锯条一般用工具钢或合金钢制成,并经淬火和高温回火处理。锯条规格用锯条两端安装孔之间距离表示,并按锯齿齿距分为粗齿、中齿、细齿三种
A. 对
B. 错
【判断题】
细齿锯条适用锯削软材料和截面较大的零件。粗齿锯条适用于锯削硬材料和薄壁零件
A. 对
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安装锯条时,锯齿方向必须朝后,锯条绷紧程度要适当
A. 对
B. 错
【判断题】
锯削时推力和压力由右手控制,左手压力不要过大,主要应配合右手扶正锯弓,锯弓向前推出时加压力,回程时不加压力,在零件上轻轻滑过
A. 对
B. 错
【判断题】
锯削时最好使锯条全部长度参加切削,一般锯弓的往返长度不应小于锯条长度的 2/3
A. 对
B. 错
【判断题】
锯条开始切入零件称为起锯。起锯方式有近起锯和远起锯
A. 对
B. 错
【判断题】
起锯时要用左手拇指指甲挡住锯条,起锯角约为 15°。锯弓往复行程要短,压力要轻,锯条要与零件表面垂直
A. 对
B. 错
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钳工操作时工具、夹具、量具应放在指定地点,严禁乱堆乱放;应顾及前后左右,并保持一定的距离,以免碰伤他人
A. 对
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【判断题】
砂轮机是用来刃磨钻头、錾子等刀具或其他工具的常用设备
A. 对
B. 错
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砂轮起动后,应等砂轮旋转平稳后再开始磨削,若发现砂轮跳动明显,应及时停机修整
A. 对
B. 错
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粗锉刀适用于加工余量小、精度要求高和表面粗糙度值较小的工件
A. 对
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新锉刀应一面用钝后再用另一面
A. 对
B. 错
【判断题】
交叉锉法一般适用于作粗锉,精锉时必须采用顺向锉,使锉痕变直纹理一致
A. 对
B. 错
【判断题】
A. 对
B. 错
【判断题】
锉刀是锉削的主要工具,锉刀主要用合金钢制成
A. 对
B. 错
【判断题】
锉刀按齿纹分为单齿纹和双齿纹。单齿纹锉刀的齿纹只有一个方向,与锉刀中心线成70°,一般用于锉硬金属,如铜、锡、铅等
A. 对
B. 错
【判断题】
锉刀按断面形状可分成:板锉(平锉);方锉;三角锉;圆锉;半圆锉等
A. 对
B. 错
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