【单选题】
机具和安全工器具入库、出库、使用前应( )，禁止使用损坏、变形、有故障等不合格的机具和安全工器具。
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相关试题
【单选题】
自制或改装以及主要部件更换或检修后的机具，应按其用途依据国家相关标准进行( )，经鉴定合格后方可使用
A. 科技试验
B. 型式试验
C. 外观检验
D. 统一清洗
【单选题】
绞磨在作业前应( )，确认安置稳固、运行正常、制动可靠后方可使用。
A. 检查
B. 试车
C. 评估
D. 检查和试车
【单选题】
独立抱杆至少应有四根缆风绳，人字抱杆至少应有( )根缆风绳并有限制腿部开度的控制绳。
【单选题】
抱杆缆风绳与抱杆顶部及地锚的连接应牢固可靠；缆风绳与地面的夹角一般应小于( )。
A. 30°
B. 45°
C. 60°
D. 90°
【单选题】
放线架应支撑在坚实的地面上，松软地面应采取加固措施。放线轴与导线伸展方向应( )
A. 成30°夹角
B. 成60°夹角
C. 垂直
D. 平行
【单选题】
链条(手扳)葫芦使用前应检查吊钩、链条、转动装置及制动装置，吊钩、链轮或倒卡变形以及链条磨损达直径的( )时，禁止使用。
A. 7%
B. 10%
C. 15 %
D. 20%
【单选题】
吊装带用于不同承重方式时，应严格按照( )使用
A. 人员的经验
B. 标签给予的定值
C. 吊装带尺寸
D. 吊装带长度
【单选题】
棘轮紧线器操作时，操作人员不得站在棘轮紧线器( )。
【单选题】
施工机具应有专用库房存放，库房要保持( )、经常( )。
A. 整齐 通风
B. 干燥 通风
C. 干净 整齐
D. 湿润 整洁
【单选题】
施工机具应定期维护、保养。施工机具的( )部分应保持润滑。
A. 转动和传动
B. 转动和机电
C. 传动和机电
D. 链接和电气
【单选题】
电动工具应做到( )。
A. 一机一闸
B. 一机两闸一保护
C. 一机一闸一线路
D. 一机一闸一保护
【单选题】
长期停用或新领用的电动工具应用绝缘电阻表测量其绝缘电阻，若带电部件与外壳之间的绝缘电阻值达不到( )MΩ，应禁止使用。
A. 1.0
B. 2.0
C. 3.0
D. 4.0
【单选题】
在一般作业场所(包括金属构架上)，应使用Ⅱ类电动工具，是指( )。
A. 功率较小的工具
B. 充电工具
C. 带绝缘外壳的工具
D. 重量较重的工具
【单选题】
安全工器具使用前，应检查确认( )部分无裂纹、无老化、无绝缘层脱落、无严重伤痕等现象以及固定连接部分无松动、无锈蚀、无断裂等现象。
【单选题】
接地线的两端夹具应保证接地线与导体和接地装置都能接触良好、拆装方便，有足够的( )，并在大短路电流通过时不致松脱。
A. 机械强度
B. 耐压强度
C. 通流能力
D. 拉伸能力
【单选题】
绝缘隔板和绝缘罩只允许在( )kV及以下电压的电气设备上使用，并应有足够的绝缘和机械强度。
【单选题】
安全工器具宜存放在温度为( )、相对湿度为80%以下、干燥通风的安全工器具室内。
A. -10～+35℃
B. -10～+30℃
C. -15～+35℃
D. -15～+30℃
【单选题】
绝缘隔板和绝缘罩应存放在室内干燥、离地面( )mm以上的架上或专用的柜内。
A. 100.0
B. 150.0
C. 200.0
D. 300.0
【单选题】
电焊机的外壳应可靠接地，接地电阻不得大于( )Ω。
【单选题】
使用中的氧气瓶和乙炔气瓶应( )固定放置，氧气瓶和乙炔气瓶的距离不得小于5m，气瓶的放置地点不准靠近热源，应距明火lOm以外。
【单选题】
使用中的氧气瓶和乙炔气瓶应垂直固定放置，氧气瓶和乙炔气瓶的距离不得小于( )m；气瓶的放置地点不得靠近热源，应距明火( )m以外。
A. 4，8
B. 5，10
C. 5，8
D. 4，10
【单选题】
重大物件的起重、搬运工作应由( )负责，作业前应进行技术交底。
A. 工作负责人
B. 有经验的专人
C. 持证上岗人员
D. 工程技术人员
【单选题】
对在用起重设备，( )应进行一次常规性检查，并做好记录。
A. 每次使用前
B. 每半年
C. 每年
D. 每两年
【单选题】
起重设备、吊索具和其他起重工具的工作负荷，不得超过( )。
A. 额定标准
B. 铭牌规定
C. 规程要求
D. 公司标准
【单选题】
当风力达到( )级以上时，受风面积较大的物体不宜起吊。
【单选题】
起重吊钩应挂在物件的( )上。
A. 重心线
B. 中心线
C. 底部构件
D. 顶部构件
【单选题】
在起吊、牵引过程中，受力钢丝绳的周围、上下方、转向滑车( )、吊臂和起吊物的下面，禁止有人逗留和通过。
A. 前后方
B. 上下方
C. 内角侧
D. 外角侧
【单选题】
起重机停放或行驶时，其车轮、支腿或履带的前端或外侧与沟、坑边缘的距离不得小于沟、坑深度的( )倍；否则应采取防倾、防坍塌措施。
A. 1.2
B. 1.5
C. 1.8
D. 2
【单选题】
起重作业时，起重机臂架、吊具、辅具、钢丝绳及吊物等与110kV架空输电线路及其他带电体的距离不得小于( )m，且应设专人监护。
A. 2.0
B. 4.0
C. 5.0
D. 6.0
【单选题】
在带电设备区域内使用起重机等起重设备时，应安装接地线并可靠接地，接地线应用多股软铜线，其截面积不得小于( )mm2。
A. 25.0
B. 16.0
C. 10.0
D. 35.0
【单选题】
在带电设备区域内使用起重机等起重设备时，应( )，接地线应用多股软铜线，其截面积不得小于16mm2。
A. 安装接地线
B. 可靠接地
C. 安装接地线并可靠接地
D. 对角装设接地
【单选题】
凡在坠落高度基准面( )m及以上的高处进行的作业，都应视作高处作业。
【单选题】
高处作业应使用工具袋。上下传递材料、工器具应使用绳索；邻近带电线路作业的，应使用绝缘绳索传递，较大的工具应用绳拴在( )。
A. 牢固的构件上
B. 设备上
C. 设备外壳上
D. 横担上
【单选题】
高处作业区周围的孔洞、沟道等应设( )并有固定其位置的措施。
A. 盖板
B. 盖板、安全网
C. 盖板、安全网或遮栏（围栏）
D. 专人监护
【单选题】
高处作业，除有关人员外，他人不得在工作地点的下面通行或逗留，工作地点下面应( )
A. 有遮栏（围栏）或装设其他保护装置
B. 有遮栏
C. 有围栏
D. 装设其他保护装置
【单选题】
安全带和专作固定安全带的绳索在使用前应进行( )。安全带应按附录O定期检验，不合格的不得使用。
A. 全面检查
B. 质量检测
C. 外观检查
D. 应力试验
【单选题】
腰带和保险带、绳应有足够的机械强度，材质应耐磨，卡环(钩)应具有保险装置，操作应灵活。保险带、绳使用长度在( ) m以上的应加缓冲器。
【单选题】
在没有脚手架或者在没有栏杆的脚手架上高处工作，高度超过( ) m时，应使用安全带，或采取其他可靠的安全措施。
【单选题】
单梯的横档应嵌在支柱上，并在距梯顶( ) m处设限高标志。
A. 1
B. 1.2
C. 1.5
D. 1.8
推荐试题
【单选题】
Small business may use___ for word processing
A. : microcomputers
B. :industrial computers
C. : mainframe computers
D. :supercomputers
【单选题】
Once you've made the Internet connection, you can send___ to any of computer user all around the w orld
A. ：e-mail
B. :WWW
C. ：ccc
D. ：web station
【单选题】
Which statement about zone-based firewall configuration is true？___
A. You can assign an interface to more than one zone
B. Traffic is implicitly denied by de fault between interfaces in the same zone
C. The zone must be configured before it can be a ssigned
D. Traffic that is destined to or sourced from the Self zone is de nied by default
【单选题】
Refer to the exhibit line in this configuration prevents the help Desk user from modifying the interface configuration.___
A. Privilege exec level 10 interface
B. Privilege exec level 9 configure terminal
C. Privilege exec level 7 show start-up
D. Username HelpDesk privilege 6 password help
【单选题】
You have been tasked with blocking user access to websites that violate company policy， but the sites use dynamic IP addresses. What is the best practice for URl filtering to solve the problem？___
A. Enable URL filtering and use URL categorization to block the we bsites that violate company
B. Enable URL filtering and create a blacklist to block the websites that violate company policy
C. Enable URL filtering and create a whitelist to block the websites that violate company policy
D.
E. nable URL filtering and use URL categorization to allow only the websites that company policy allows users to access.
【单选题】
Within an 802. 1x-enabled network with the auth Fail feature configured， when does a switch port get placed into a restricted VLAN？___
A. When a conected client fails to authenticate after a certain number of attempts.
B. if a connected client does not support 802. 1x
C. when AAA new-model is ena bled
D. after a connected client exceeds a specified idle time
E. when 802. 1x is not globally enabled on the Cisco Catalyst switch
【单选题】
Which type of attack does a proxy firewall protect against ？___
A. cross-site scripting attack
B. worm traffic
C. port scanning
D. DDoS attacks
【单选题】
When an administrator initiates a device wipe command from the ISE， what is the immediate effect？___
A. It requests the administrator to choose between erasing all device data or only managed corporate data.
B. It requests the administrator to enter the device pin or password before proceeding with the operation
C. It notifies the device user and proceeds with the erase operation
D. It immediately erases all data on the device
【单选题】
What is a valid implicit permit rule for traffic that is traversing the ASa firewall？___
A. ARPs in both directions are permitted in transparent mode only
B. Unicast IPv4 traffic from a higher security interface to a lower security interface is permittee in routed mode only.
C. Unicast IPv6 traffic from a higher security interface to a lower security interface is permitted in transparent mode only.
D. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in transparent mode.
E. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in routed mode
【单选题】
A specific URL has been identified as containing malware. What action can you take to block users from accidentally visiting the URl and becoming infected with malware ？___
A. Enable URL filtering on the perimeter router and add the URls you want to block to the router's local URL list
B. Enable URL filtering on the perimeter firewall and add the URls you want to allow to the router's local URL list.
C. Enable URL filtering on the perimeter router and add the URls you want to allow to the firewall's local URL list
D. Create a blacklist that contains the URl you want to block and activate the blacklist on the perimeter rout
E. Create a whitelist that contains the URLs you want to allow and activate the whitelist on the perimeter router.
【单选题】
How does PEAP protect the EAP exchange ？___
A. It encrypts the exchange using the server certificate
B. It encrypts the exchange using the client certificate
C. It validates the server-supplied certificate,and then encrypts the exchange using the client certificate
D. It validates the client-supplied certificate,and then encrypts the excha nge using the server certificate
【单选题】
Which feature of the Cisco Email Security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attacks？___
A. contextual analysis
B. holistic understanding of threats
C. graymail management and filtering
D. signature-based IPS
【单选题】
Refer to the exhibit【nat (inside,outside)dunamic interface】 Which translation technique does this configuration result in？___
A. DynamIc PAT
B. Dynamic NAT
C. Twice NAT
D. Static NAT
【单选题】
Refer to the exhibit which are repre sents the data center？___
【单选题】
While trouble shooting site-to-site VPN， you issued the show crypto isakmp sa command. What does the given output show？___
A. IKE Phase 1 main mode was created on 10.1.1.5， but it failed to negotiate with 10.10 10.2
B. IKE Phase 1 main mode has successfully negotiated between 10.1.1.5 and 10.10..
C. IKE Phase 1 aggressive mode was created on 10.1.1.5， but it failed to negotiate with
【单选题】
Refer to the exhibit All ports on switch 1 have a primary vLan of 300 Which devices can host 1 reach？___
A. host 2
B. server
C. host 4
D. other devices within VLAN303
【单选题】
Which option is the cloud-based security service from Cisco the provides URL filtering， web browsing content security， and roaming user protection？___
A. Cloud Web service
B. Cloud Advanced Malware Protection
C. Cloud We b Security
D. Cloud Web Protection
【单选题】
How can you detect a false negative on an IPS？___
A. View the alert on the ips
B. Review the ips log
C. Review the is console
D. Use a third- party system to perform penetration testing.
E. Use a third- party to audit the next generation firewall rules
【单选题】
If a switch port goes directly into a blocked state only when a superior BPDU is received， what mechanism must be in use？___
A. STP BPDU guard
B. Loop guard
C. EtherChannel guard
D. STP Root guard
【单选题】
what improvement does EAP-FASTv2 provide over EAP-FAST？ ___
A. It allows multiple credentials to be passed in a single EAP exchange.
B. It supports more secure encryption protocols
C. It allows faster authentication by using fewer packets.
D. It addresses security vulnerabilities found in the original protocol
【单选题】
When users login to the Client less Ssl Vpn using https://209.165.201.2/test ,which group policy will be applied？___
A. test
B. clientless
C. sales
D. DfitGrp Policy
E. Default RAGroup
F. Default WEB VPN
G. roup
【单选题】
Which user authentication method is used when users login to the Clientless SSLVPN portal using https://209.165.201.2/test？___
A. AAA with LOCAL database
B. AAA with RADIUS server
C. Certificate
D. :Both Certificate and aaa with LoCAL database
E. Both Certificate and AAA with RADIUS server
【单选题】
What' s the technology that you can use to prevent non malicious program to runin the computer that is disconnected from the network？___
A. Firewall
B. Sofware Antivirus
C. Network IPS
D. Host IPS
【单选题】
Which statement about the communication between interfaces on the same security level is true？___
A. Interfaces on the same security level require additional configuration to permit interinterface communication
B. Configuring interfaces on the same security level can cause asymmetric routing
C. All traffic is allowed by default between interfaces on the same security level
D. You can configure only one interface on a n individual security level
【单选题】
Which product can be used to provide application layer protection for tcp port 25 traffic？___
A. ESA
B. CWS
C. WSA
D. ASA
【单选题】
which iPS mode is less secure than other options but allows optimal network through put ?___
A. inline mode
B. inline-bypass mode
C. transparent mode
D. Promiscuous mode
【单选题】
Which feature of the Cisco Email security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attack？___
A. reputation based filtering
B. signature based IPS
C. contextual analysis
D. graymail management and filtering
【单选题】
Which type of social-engineering attack uses normal tele phone service as the attack vector？___
A. smishing
B. dialing
C. phishing
D. vishing
【单选题】
Which quantifiable item should you consider when you organization adopts new technologies？___
A. exploits
B. vulnerability
C. threat
D. Risk
【单选题】
Referencing the ClA model， in which scenario is a hash- only function most appropriate ？___
A. securing data at rest
B. securing real-time traffic
C. securing data in files
D. securing wireless transmissions
【单选题】
Which ports must be open between a aaa server and a microsoft server to permit Active Directory authentications？___
A. 445 and 389
B. 888 and 3389
C. 636 and 4445
D. 363 and 983
【单选题】
Refer to the exhibit for which reason is the tunnel unable to pass traffic___
A. the tunnel is failing to receive traffic from the remote peer
B. the local peer is unable to encrypt the traffic
C. the ip address of the remote peer is incorrect
D. UDP port 500 is blocked
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
How can you protect CDP from reconnaissance attacks？___
A. Enable dynamic ARP inspection on all untrusted ports.
B. Enable dot1x on all ports that are connected to other switches.
C.
D. isable CDP on ports connected to endpoints.
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without ？___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
Which option is a key security compone nt of and MDM deployment ？___
A. using network-specific installer packages
B. using an application tunnel by default
C. using self-signed certificates to validate the server
D. using MS-CHAPv2 as the primary
E. AP method
【单选题】
Which Firepower Management Center feature detects and block exploits and hack attempts？___
A. Content blocker
B. file control
C. intrusion prevention
D. advanced malware protection
【单选题】
hich description of the nonsecret numbers that are used to start a Diffie- Hellman exchange is ture？___
A. They are preconfigured prime integers.
B. They are large pseudorandom numbers.
C. They are very small numbers chosen from a table of known valuses
D. They are numeric values extracted from ha shed system hostnames
【多选题】
Which two characteristics of an application layer firewall are true？___
A. provides stateful firewal functionality
B. has low processor usage
C. provides protection for multiple applications
D. provides rever se proxy services
E. is immune to URL manipulation
【多选题】
Which two devices are components of the BYOD architectural framework？___
A. Nexus 7010 switch
B. Cisco 3945 Router
C. Identify Services Engine
D. Wireless Access oints
E. Prime Infrastructure
