【填空题】
49.核武器具有____、冲击波、____ ___、核电磁脉冲和放射性沾染等五种杀伤破坏因素。
查看试卷，进入试卷练习
微信扫一扫，开始刷题
相关试题
【填空题】
50.精确制导技术是指采用高技术直接命中概率超过___以上的武器。
【单选题】
What is an example of social engineering？___
A. gaining access to a computer by observing the user login credentials
B. gaining access to a build through an unguarded entrance
C. gaining access to a server by using a USB stick
D. gaining access to a server room by posing as local IT
【单选题】
Which type of Layer 2 attack enables the attacker to intercept traffic that is intended for one specific recipient？___
A. BPDU attack
B. DHCP starvation I LAB
C. MAC address spoofing
D. CAM table overflow
【单选题】
Which about nested policy maps in a zone-based firewall is true ?___
A. They are limited to two leve ls in a hierarchical policy
B. Parent policies are previously defined policies that are defined by using the service policy command
C. A child policy is a new policy that uses a pre-existing policy.
D. A child policy is a new that uses a pre-existing policy
【单选题】
In which configuration do you configure the ip ospf authentication key 1 command？___
A. routing process
B. interface
C. privileged
D. global
【单选题】
Which statement about command authorization and security contexts is true？___
A. If command authorization is configured， it must be enabled on all contexts.
B. The change to command invokes a new context session with the credentials of the currently
C. AAA settings are applied on a per-context basis
D. The enable. 15 user ang admins with chang to permission ha e dfferent command authorization levels pertontext
【单选题】
Which command do you enter to enable authentication for OSPF on an interface？___
A. router（config-if）#ip ospf message-digest-key 1 md5 CIS COPASS
B. router（config-if）#ip ospf authentication message-digest
C. router（config-if）#ip ospf authentication-key CISCOPASS
D. router（config-if）#area 0 authentication message-digest
【单选题】
What feature defines a campus area network？___
A. It has a single geographic location
B. It lacks external connectivity.
C. It has a limited number of segments.
D. It has limited or restricted Internet access
【单选题】
Which type of attack most commonly involves a direct attack on a network？___
A. :phishing
B. Trojan horse
C. denial of service
D. social engineering
【单选题】
What information does the key length provide in an encryption algorithm?___
A. the cipher block size
B. the hash bloc k size
C. the number of permutations
D. the packet size
【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
【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
推荐试题
【多选题】
下列关于支票的说法中错误的有___
A. 支票的基本当事人包括出票人、付款人、收款人
B. 支票的种类包括现金支票、转账支票、普通支票和划线支票
C. 出票人不得在支票上记载自己为收款人
D. 支票的出票人签发支票的金额不得超过签发时在付款人处实有的金额
【单选题】
焊接钢管的直径采用什么表示___
A. De
B. DN
C. 外径*壁厚
D. 外径
【单选题】
请选择下列管径哪一个不是常用的管道直径___
【单选题】
检查口、清扫口等清通设备，其作用是___
A. 疏通排水管道
B. 排除系统内臭气
C. 减少管内压力
D. 没用
【单选题】
下列哪一项不需要计算工程量___
A. 清扫口
B. 阻火圈
C. 地漏
D. 检查口
【单选题】
给排水专业中，两个有标高差且平面相交的水平管，软件提供了___功能使两根水平管之间快速生成立管？
A. 自动生成立管
B. 布置立管
C. 延伸水平管
D. 旋转布置立管
【单选题】
在给排水专业中，由于设计或是其它原因，设备第一次布置的与顶标高对齐了，这时识别和手动绘制管道不能与设备生成立管，再调整设备高度时，无法生成立管，这时要再生成1根立管应该用___功能
A. 选择识别立管
B. 批量生成多立管
C. 生成立管
D. 识别立管信息
【单选题】
用选择识别立管功能识别立管时，在选择要识别成的构件窗体中新建构件，必须要修改否则识别不成功的属性是___
A. 标高
B. 材质
C. 管径
D. 系统类型
【单选题】
在给排水专业中，计算水平管道时，量取长度从（ ）图中量取，计算竖向管道时，长度是从___图中得到信息。
A. 平面；立面
B. 立面；系统
C. 平面；系统
D. 立面；系统
【单选题】
给排水、采暖、煤气管道系统图是正面斜轴测图，在系统图中用水平线表示___方向的管线，用45°斜线表示（ ）走向的管道，用竖线表示（ ）走向的管线。（ ）
A. 左右-上下-前后
B. 左右-前后-上下
C. 前后-上下-左右
D. 前后-左右-上下
【单选题】
不锈钢水管是最好的直接饮用水输送管材，卫生健康，经久耐用，节能环保，连接方式主要为___
A. 沟槽式
B. 丝扣式
C. 卡压式
D. 焊接式
【单选题】
用于调节水量、控制水流方向等作用的常用附件是___
【单选题】
检查口是一种在排水管一侧，带有盖板的开口管子配件，拆开盖板即可进行疏通工作，一般装在___上
A. 排水干管
B. 排水立管
C. 排水支管
D. 排水弯管
【单选题】
电缆工程量的统计公式是___？
A. 长度+预留
B. 长度*根数+预留
C. (长度+预留)*根数
D. 长度
【单选题】
某电缆导管，电缆规格型号为RVS-2*1.5，如果导管长度为10m，则其长度为___m
【单选题】
电缆进入沟内或吊架时引上（下）预留___
A. 1m
B. 1.5m
C. 2m
D. 3m
【单选题】
电缆中间接头盒两端各留___
A. 1m
B. 1.5m
C. 2m
D. 3m
【单选题】
接地母线、避雷线敷设均按延长m计算，其长度按施工图设计水平和垂直固定长度另加___的附加长度计算
A. 3.2%
B. 3.6%
C. 3.9%
D. 4.2%
【单选题】
接地跨接线按规程规定凡需作接地跨接线的工程内容，每跨接一次按___计算
【单选题】
某电缆导管，导线信息为BV-2*4，如果导管长度为12m，则导线长度为___
【单选题】
填写电线导管的导线规格型号属性时，当存在两种不同的型号时，用什么符号分割___
【单选题】
在电气照明专业中，计算水平管道时，量取长度从___图中量取
A. 平面
B. 设计说明或材料表
C. 大样图
D. 剖面
【单选题】
在电气照明专业中，计算水平管道时，计算竖向管道时，长度是从___图中得到信息。
A. 平面
B. 系统图
C. 大样图
D. 剖面
【单选题】
电气照明专业中导线敷设部分中FC表示什么含义___？
A. 暗敷在屋面或顶板内
B. 地板或地面下敷设
C. 暗敷在墙内
D. 吊顶内敷设
【单选题】
电气照明专业，规格型号中出现ZR，则表示导线为___。
A. 聚氯乙烯绝缘
B. 阻燃类型的导线
C. 焊接钢管
D. 塑料管
【单选题】
静压箱的清单工程量计算以___
A. 设计图示面积计算
B. 设计体积计算
C. 个数计算
D. 重量计算
【单选题】
安装在墙面或柱子上的插座最常见得底部离地面高度为___
A. 100mm
B. 200mm
C. 300mm
D. 400mm
【单选题】
电气工程图包括___
A. 系统图
B. 图纸目录
C. 设计总说明
D. 以上都有
【单选题】
可以告诉我们这个图纸都有哪些系统，也可以帮助我们在清点数目的时候却准缺不缺图纸的是___？
A. 系统图
B. 图纸目录
C. 设计总说明
D. 建筑总说明
【单选题】
属于电气专业要计算的设备是___
A. 探测器
B. 喷淋头
C. 消火栓
D. 接线盒
【单选题】
电气照明专业，规格型号中出现ZR，则表示导线为___。
A. 聚氯乙烯绝缘
B. 阻燃类型的导线
C. 焊接钢管
D. 塑料管
【单选题】
电气照明专业中导线敷设部分中WE表示什么含义___？
A. 沿墙面敷设
B. 地板或地面下敷设
C. 暗敷在墙内
D. 吊顶内敷设
【单选题】
电气照明专业中导线敷设部分中PVC表示什么含义___？
A. 穿硬塑料管敷设
B. 地板或地面下敷设
C. 暗敷在墙内
D. 吊顶内敷设
【单选题】
电缆进控制、保护屏及模拟盘等，需要预留？___
A. 1m
B. 1.5m
C. 2m
D. 高+宽
【单选题】
普通灯具安装根据灯的种类、规格，按照设计图示安装数量以___为计量单位
【单选题】
主要用在要求高照度的场所、繁华街道及要求显色性好的大面积照明的地方的灯是___
A. 白炽灯
B. 荧光灯
C. 金属卤化物灯
D. 低压钠灯
【单选题】
单相指的是___
A. 一根零线
B. 一根火线
C. 一根零线一根火线
D. 一根零线一根火线一根地线
【单选题】
接地断接卡子一般设置在哪个地方？___
A. 垫层
B. 室外墙裙
C. 室内墙裙
D. 吊顶
【单选题】
出户线预留长度___
A. 1m
B. 1.5m
C. 2m
D. 3m
【单选题】
规格型号为YJV-3*50+2*16的电缆，一端连接配电箱时需要计算几个端头？___
