【判断题】
同一变电站的操作票应事先连续编号,计算机生成的操作票应在正式出票前连续编号,操作票按编号顺序使用。
A. 对
B. 错
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相关试题
【判断题】
在户外变电站和高压室内搬动梯子、管子等长物,应两人放倒搬运,并与带电部分保持不小于表1的安全距离。
A. 对
B. 错
【判断题】
在发生人身触电事故时,可以不经许可,即行断开有关设备的电源,但事后应立即报告调度(或设备运行管理单位)和上级部门。
A. 对
B. 错
【判断题】
不应带负荷拉合隔离开关。
A. 对
B. 错
【判断题】
作废的操作票,应注明“作废”字样,未执行的应注明“未执行”字样,已操作的应注明“已执行”字样。
A. 对
B. 错
【判断题】
操作票应保持半年。
A. 对
B. 错
【判断题】
在进行倒负荷或解、并列操作前后,检查相关电源运行及负荷分配情况。
A. 对
B. 错
【判断题】
巡视室内设备应随手关门。
A. 对
B. 错
【判断题】
经本单位批准允许单独巡视高压设备的然元巡视高压设备时,不准进行其他工作,不准移开或越过遮栏。
A. 对
B. 错
【判断题】
主控制室与六氟化硫配电装置室间要采取气密性隔离措施。
A. 对
B. 错
【判断题】
可以带负荷拉合隔离开关。
A. 对
B. 错
【判断题】
变电站值班人员应熟悉电气设备,并由2人及以上人员进行值班。
A. 对
B. 错
【判断题】
高压设备发生接地时,室内不准接近故障点4m以内,室外不准接近故障点8m以内,进入上述范围人员应穿绝缘靴,接触设备的外壳和构架时,应戴绝缘手套。
A. 对
B. 错
【判断题】
每组接地线均应编号,并存放在固定地点。存放位置亦应编号,接地线号码与存放位置号码应一致。
A. 对
B. 错
【判断题】
装、拆接地线均应使用绝缘棒和戴绝缘手套。人体不得碰触接地线或未接地的导线,以防止触电。
A. 对
B. 错
【判断题】
在配电装置上,接地线应装在该装置导电部分的规定地点,这些地点的油漆应刮去,并划有黑色标记。
A. 对
B. 错
【判断题】
装设接地线应先接接地端,后接导体端,接地线应接触良好,连接应可靠。拆接地线的顺序与此相反。
A. 对
B. 错
【判断题】
检修部分若分为几个在电气上不相连接的部分,则各段应分别验电接地短路。
A. 对
B. 错
【判断题】
对于可能送电至停电设备的各方面都应装设接地线或合上接地刀闸,所装接地线与带电部分应考虑接地线摆动时仍符合安全距离的规定。
A. 对
B. 错
【判断题】
验电前,应先在有电设备上进行试验,确证验电器良好。
A. 对
B. 错
【判断题】
所有配电装置的适当地点,均应设有与接地网相连的接地端,接地电阻应合格。接地线应采用三相短路式接地线。
A. 对
B. 错
【判断题】
检修设备停电,应把各方面的电源完全断开(任何运用中的星形接线设备的中性点,应视为带电设备)。
A. 对
B. 错
【判断题】
验电时,应使用相应电压等级、合格的接触式验电器,在装设接地线或和接地刀闸处对各相分别验电。
A. 对
B. 错
【判断题】
不应在只经断路器断开电源的设备上工作。应拉开隔离开关,手车开关应拉至检修位置,应使各方面有一个明显的断开点,若无法观察到停电设备的断开点,应有能够反映设备运行状态的电气和机械等指示。
A. 对
B. 错
【判断题】
在同一电气连接部分用同一工作票依次在几个工作地点转移工作时,全部安全措施由运行人员在开工前一次完成,不需要再办理转移手续。
A. 对
B. 错
【判断题】
只有在同一停电系统的所有工作票都已终结,汇报调度并得到值班调度员许可指令后,方可合闸送电。
A. 对
B. 错
【判断题】
专责监护人年离开工作现场,应由工作负责人变更专责监护人,履行变更手续,并告知全体被监护人员;原、现专责监护人应做好工作交接。
A. 对
B. 错
【判断题】
工作负责人、专责监护人应始终在工作现场,对工作班成员进行监护,及时纠正不安全行为。
A. 对
B. 错
【判断题】
与停电设备有关的变压器和电压互感器,应将设备各侧断开,防止向停电检修设备反送电。
A. 对
B. 错
【判断题】
工作许可后,工作负责人、专责监护人应向工作班成员交待工作内容、人员分工、带电部位等危险点和现场安全措施,进行危险点告知,并履行确认手续后,工作班方可开始工作。
A. 对
B. 错
【判断题】
工作票有破损不能继续使用时,应补填新的工作票,并重新履行签发许可手续。
A. 对
B. 错
【判断题】
同一变电站内在几个电气连接部分上依次进行不停电的同一类型的工作,可以使用一张第二种工作票。
A. 对
B. 错
【判断题】
工作负责人离开工作现场,应由工作票签发人变更工作负责人,履行变更手续,并告知工作班成员及工作许可人;原、现工作负责人应做好工作交接。
A. 对
B. 错
【判断题】
电气工作人员应具备必要的电气知识和业务技能,且按工作性质,熟悉本部分,并经考试合格。
A. 对
B. 错
【判断题】
电气工作人员应具备必要的安全生产知识和技能,从事电气作业的人员应掌握触电急救、创伤急救等紧急救护法。
A. 对
B. 错
【判断题】
作业中应执行制定的风险削减措施,将风险控制在允许的范围内。
A. 对
B. 错
【判断题】
在试验和推广新技术、新工艺、新设备、新材料时,应有相应的安全措施方可实施。
A. 对
B. 错
【判断题】
工作票签发人或工作负责人认为有必要现场勘察的线路作业,作业单位应根据工作任务进行现场勘察,并填写现场勘察记录。现场勘察应由工作票签发人组织。
A. 对
B. 错
【判断题】
作业结束后应总结分析作业经过,进行补充完善。
A. 对
B. 错
【判断题】
现场勘察应查看现场设施情况、作业现场的条件、环境,应停电的设备、保留或邻近的带电部分及其危险点等。
A. 对
B. 错
【判断题】
对危险性、复杂性和困难程度较大的作业项目,应制订组织措施、技术措施和安全措施。
A. 对
B. 错
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How does PEAP protect the EAP exchange ?___
A. It encrypts the exchange using the server certificate
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Refer to the exhibit【nat (inside,outside)dunamic interface】 Which translation technique does this configuration result in?___
A. DynamIc PAT
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Refer to the exhibit which are repre sents the data center?___
A. A
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C. C
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While trouble shooting site-to-site VPN, you issued the show crypto isakmp sa command. What does the given output show?___
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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
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Refer to the exhibit All ports on switch 1 have a primary vLan of 300 Which devices can host 1 reach?___
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D. other devices within VLAN303
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Which option is the cloud-based security service from Cisco the provides URL filtering, web browsing content security, and roaming user protection?___
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what improvement does EAP-FASTv2 provide over EAP-FAST? ___
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B. It supports more secure encryption protocols
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【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?___
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【单选题】
Which user authentication method is used when users login to the Clientless SSLVPN portal using https://209.165.201.2/test?___
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【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
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【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
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【单选题】
Which product can be used to provide application layer protection for tcp port 25 traffic?___
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which iPS mode is less secure than other options but allows optimal network through put ?___
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【单选题】
Which feature of the Cisco Email security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attack?___
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Which type of social-engineering attack uses normal tele phone service as the attack vector?___
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【单选题】
Which quantifiable item should you consider when you organization adopts new technologies?___
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【单选题】
Referencing the ClA model, in which scenario is a hash- only function most appropriate ?___
A. securing data at rest
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【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
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【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
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【单选题】
Which Firepower Management Center feature detects and block exploits and hack attempts?___
A. Content blocker
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【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
【多选题】
Which two actions can a zone based firewall take when looking at traffic? ___
A. forward
B. inspect
C. drop
D. broadcast
E. filter
【多选题】
n which two situations should you use in-band management?___
A. when management applications need concurrent access to the device
B. when you require administrator access from multiple locations
C. when a network device fails to forward packets
D. when you require ROMMON access
E. when the control plane fails to respond
【多选题】
What are two ways to prevent eavesdropping when you perform device management tasks?___
A. Use an SSH connection.
B. Use SNMPv3
C. Use out-of-band management
D. Use SNMP
E. Use in-band management
【多选题】
Which two features are commonly used CoPP and CPPr to protect the control plane? ___
A. QoS
B. traffic classification
C. access lists
D. policy maps
E. class maps
F. Cisco Express Forwarding
【多选题】
Which four tunne ling prot ocols are enabled in the Dfit GrpPolicy group policy ?___
A. Clientless SSL VPN
B. SSL VPN Client
C. PPTP
D. L2TP/IPsec
E. IPsec IKEv1
F. IPsec IKEv2
【多选题】
Which two statements regarding the aSA VPN configurations are correct?___
A. The asa has a certificate issued by an external certificate authority associated to the ASDM TrustPoint1
B. The Default WEBVPNGroup Connection Profile is using the aaa with RADIUS server method
C. The Inside-srvbook mark references the https://192.168.1.2url
D. Only Clientless SSL VPN access is allowed with the Sales group policy
E. Any Connect, IPSec IKEv1, and IPSec IKEv2 VPN access is enabled on the outside interface
F. The Inside -SRV bookmark has not been applied to the Sales group policy
【多选题】
Which three ESP fields can be encrypted during transmission?___
A. Security Parameter Index
B. Sequence Number
C. MAC Address
D. Padding
E. Pad length
F. Next Header
【多选题】
.Which three statements de scribe DHCP spoofing attacks?___
A. They can modify traffic in transit.
B. They are used to perform man- in-the-middle attacks
C. They use ARP poisoning
D. They can access most network devices
E. They protect the ide ntity of the attacker by masking the DHCP address.
F. They are can physically modify the network gateway.
【多选题】
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
【多选题】
In which two situations should you use in band management? ___
A. when the control plane fails to respond
B. when you require administrator access from multiple locations
C. when you require ROMMON access.
D. where a network device fails to forward packets
E. when multiple ma nagement applications need concument access to the device.