【判断题】
第462题：安全阀和蒸汽放空调节阀，都对防止裂解炉超高压蒸汽系统超压有重要作用
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相关试题
【判断题】
第463题：冷态炉点火时，未燃烧的燃料空气混合物可能聚集在炉膛内某个地方，与火接触爆炸
【判断题】
第464题：过滤式呼吸保护器在缺氧空气中提供不了任何保护作用
【判断题】
第465题：裂解炉在运行与烧焦两种运行状态间切换时，裂解气大阀与烧焦气阀门切换一定要小心，防止裂解气倒流至烧焦系统中，同时不能使裂解炉系统超压
【判断题】
第466题：氮气的伤害途径为皮肤接触吸收
【判断题】
第467题：难度大、劳动强度大、时间长的受限空间作业应采职轮流换岗作业
【判断题】
第468题：危险化学品事故造成环境污染的，由事发企业发布有关信息
【判断题】
第469题：加氢尾油作为裂解原料时由于原料中含硫量较高不需要加硫
【判断题】
第471题：裂解炉SS并网时可以现将放空阀关闭升压然后再并网操作
【判断题】
第472题：裂解炉开年前炉膛置换的主要目的是防止因燃料阀门泄露时，炉膛达到爆炸极限，造成爆鸣或爆炸
【判断题】
第474题：狭义的危险是指系统中特定的危险事件发生可能性和严重程度的结合
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第475题：运转中的机械设备对人的伤害主要有撞伤、压伤、轧伤、卷缠
【判断题】
第476题：乙烯球罐巡回检查的重点部位是安全阀、压力表、温度计、液面计等安全附件是否完好、灵敏、可靠及准确
【判断题】
第478题：裂解炉从运行到烧焦及从烧焦到运行的阀门切换一定要小心。裂解气大阀的上游必须保持高于总管压力至少20-30KPa以防止裂解气倒流，最大不能超过350KPa以防止系统超压
【判断题】
第479题：危险化学品单位发生危险化学品事故，造成他人人身伤害或者财产损失的，依法承担赔偿责任
【判断题】
第480题：演练实施过程中出现特殊或意外情况，演练总指挥可决定中止演练
【判断题】
第481题：在进行裂解炉超高压蒸汽过热温度联锁试验时，通常是通过工艺操作使过热温度达到联锁，看裂解炉是否联锁
【判断题】
第482题：碱洗塔检修进人时，只需要氧含量合格，不需要用水淋湿塔内
【判断题】
第483题：专项应急预案应制定明确的救援程序和具体的应急救援措施
【判断题】
第484题：球罐每两次内外部检验期间内至少进行一次耐压试验
【判断题】
第485题：乙烯生产中使用或产生的液体，大部分物质的闪点小于,产生的可燃气体爆炸下限小于10%
【判断题】
第486题：安全附件主要包括泄压装置、计量装置、报警装置和联锁装置
【判断题】
第487题：危险化学品的生产、贮存、使用单位，应当在生产、贮存、使用场所设照通讯、报警装置、并保证在任何情况下处于正常使用状态
【判断题】
第488题：在装置开停工过程中，必须保证火炬正常燃烧
【判断题】
第489题：消防安全际志是用以表达与消防有关的安全信息的标志，它由安全色、边框、以图像为主的图形符号或方案构成
【判断题】
第490题：安全阀可远程控制泄压、保证设备安全
【判断题】
第491题：液化气是一种易燃、易爆、不易压缩的气体
【判断题】
第492题：碱洗塔温度过高会导致裂解气中重烃的聚合，影响装置操作
【判断题】
第493题：滤毒罐存放有效期为半年，超过期限要重新鉴定
【判断题】
第494题：硫化氢具有臭鸡蛋味，但浓度极高时却无味
【判断题】
第495题：乙烯装置停车时，高温真空设备必须先恢复常压
【判断题】
第496题：应急预案的编制应当结合本地区、本部门、本单位的危险性分析情况
【判断题】
第497题：正常生产时，应使负荷变动尽可能地缓慢、均匀以保证压缩机平稳运转
【判断题】
第498题：安全是一种状态，取决于事件发生的可能性和后果的严重度方面是否为人们可以接受的
【判断题】
第499题：防护性能是指防御物理、化学、生物等有害因素，保护作业人员安全与健康的能力
【判断题】
第500题：进入生产装置的头部防护用品主要为安全帽
【判断题】
第501题：在乙烯原料重质化时，前加氢脱除炔烃技术的不足之一是由于物料中一氧化碳含量剧烈波动（剧增或剧降），可能导致反应器容易缺漏或飞温
【判断题】
第502题：裂解炉废热锅炉裂解气侧泄漏会导致爆燃，导致安全隐患的发生
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【单选题】
A user on your network inadvertently activates a botnet program that was received as an emai attachment. Which type of mechanism does Cisco Firepower use to detect and block only the botnet attack？___
A. network-based access control rule
B. reputation-based
C. user-ba sed access control rule
D. botnet traffic filter
【单选题】
What does the policy map do in CoPP？___
A. defines service parameters
B. defines packet selection parameters
C. defines the packet filter
D. define s the action to be performed
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How is management traffic isolated on a Cisco ASR 1002？___
A. Traffic isolation is done on the vlan level
B. There is no management traffic isolation on a Cisco ASR 1002
C. Traffic is isolated based upon how you configure routing on the device
D. The management interface is configured in a special vRF that provides traffic isolation from the default routing table
【单选题】
Which statement about NaT table evaluation in the asa is true？___
A. After-auto NAT polices are appl d first
B. Manual NAT policies are applied first
C. the asa uses the most specific match
D. Auto NAT policies are applied first
【单选题】
Which information can you display by executing the show crypto ipsec sa command？___
A. ISAKMP SAs that are established between two peers
B. recent changes to the IP address of a peer router
C. proxy infor mation for the connection between two peers
D. IPsec SAs established between two peers
【单选题】
How can you prevent NAT rules from sending traffic to incorrect interfaces？___
A. Assign the output interface in the NAT statement
B. Add the no-proxy-arp command to the nat line.
C. Configure twice NAT instead o bject NAT. 5
D. Use packet-tracer rules to reroute misrouted NAT entries.
【单选题】
What term can be defined as the securing， control， and identification of digital data？___
A. cryptography
B. crypto key
C. cryptoanalysis
D. cryptology
【单选题】
Which feature in the dNS security module provide on and off network DNS protection？___
A. Data Loss Prevention
B. Umbrella
C. Real-time sandboxing
D. Layer-4 monitoring
【单选题】
Which a dverse consequence can occur on a network without BPDu guard ?___
A. The olde st switch can be elected as the root bridge
B. Unauthorized switches that are connected to the network can cause spanning-tree loops
C.
D. ouble tagging can cause the switches to experience CAM table overload.
【单选题】
What configuration is required for multitenancy ?___
A. shared infrastructure
B. multiple carriers
C. co-located resources
D. multiple separate zones
【单选题】
Why does ISE require its own certificate issued by a trusted CA？___
A. ISEs certificate allows guest devices to validate it as a trusted network device
B. It generates certificates for guest devices ba sed on its own certificate
C. It requests certificates for guest devices from the Ca server based on its own certificate.
D. ISE's certificate allows it to join the network security framework
【单选题】
which attack involves large numbers of ICMP packets with a spoofed source IP address？___
A. smurf attack
B. Teardrop attack
C. Nuke attack
D. SYN Flood attack
【单选题】
Which statement about interface and global access rules is true？___
A. Interface access rules are processed before global access rules.
B. Global access rules apply only to outbound traffic， but interface access rules can be applied in either direction
C. The implicit allow is proce ssed after both the global and interface access rules
D. If an interface access rule is applied， the global access rule is ignored
【单选题】
Which type of malicious software can create a back-door into a device or network？___
A. bot
B. worm
C. virus
D. Trojan
【单选题】
Which security term refers to the like lihood that a weakness will be exploited to cause damage to an asset？___
A. threat
B. risk
C. countermeasure
D. vulnerability
【单选题】
Which IPS detection method examines network traffic for preconfigured patterns？___
A. signature-based detection
B. honey-pot detection
C. anomaly-based detection
D. policy-based detection
【单选题】
What is an advantage of split tunneling ？___
A. It allows users with a VpN connection to a corporate network to access the internet with sending traffic across the cor porate network.
B. It allows users with a vpn connection to a corporate network to access the internet by using the vPN for security.
C. It protects traffic on the private network from users on the public network
D. It enables the VPN server to filter traffic more efficiently
【单选题】
Which IDS/IPS state misidentifies acceptable behavior as an attack ？___
A. false negative
B. true positive NEKA G
C. true negative
D. false positive
【单选题】
What is the maximum num ber of methods that a single method list can contain？___
【单选题】
Which command enables authentication at the oSPFv2 routing process level？___
A. ip ospf authentication message-digest
B. area 0 authentication message-digest
C. ip ospf message-digest-key 1 mds Cisco
D. area 0 authentication ipsec spi 500 md5 1234567890ABCDEF1234567890ABCDEF
【单选题】
Which type of firewall monitors a nd protects a specific system？___
A. firewall
B. application firewall
C. stateless firewall wvp
D. personal firewall
【单选题】
On an ASA， which maps are used to identify traffic？___
A. Route maps
B. Policy maps
C. Class maps
D. Service maps
【单选题】
Which type of social engineering attack targets top executives？___
A. whaling
B. vishin
C. spear phishing ng
D. baiting
【单选题】
What is the minimum Cisco lOS version that supports zone-based firewalls？___
A. 12.1T
B. 15.1
C. 15.0
D. 124
【单选题】
In which type of attack does an attacker overwrite an entry in the CAM table to divert traffic destined to a legitimate host？___
A. DHCP spoofing
B. ARP spoofing
C. CAM table overflow
D. MAC spoofing
【多选题】
Which two attack types can be prevented with the impleme ntation of a Cisco IPS solution？___
A. DDos
B. man-in-the-middle
C. worms
D. ARP spoofing
E. VLAN hopping
【多选题】
choose four___
A. DHCP snooping ——————————blocks DHCP messages
B. Dynamic ARP inspection——————verifies IP-to-MAC traffic on untrusted ports
C. IP sources guard ——————————provides layer 2 interface security with ports ACLs
D. Port security————————————mitigates MAC-address spoofing at the access interface
【多选题】
choose four___
A. Step1————————run the system setup wizard
B. Step2————————add an authentication realm
C. Step3————————configure identity management
D. Step4————————configure directory group
【多选题】
What are two advanced features of the Cisco AMp solution for endpoints ___
A. contemplation
B. foresight
C. sandboxing
D. reputation
E. reflection
【多选题】
Which two characteristics of RADIUS are true？___
A. It encrypts only the password between user and server.
B. It uses TCP ports 1812/1813
C. It uses UDP ports 1812/1813.
D. It uses UDP port 49
E. It uses TCP port 49
【多选题】
What are two challenges of using a network-based IPS？ ___
A. It is unable to determine whether a detected attack was successful
B. It requires additional storage and proce ssor capacity on syslog servers
C. As the network expands， it requires you to add more sensors.
D. It is unable to detect attacks across the entire network
E. It must support multiple operating systems.
【多选题】
What are two default be haviors of the traffic on a zone-based firewall？___
A. Traffic within the self -zone uses an im plicit deny all.
B. All traffic between zones is implicitly blocked
C. Communication is allowed between interfadAss that are members of the same zone
D. Communication is blocked between interfaces that are members of the same zone
E. The CBAC rules that are configured on router interfaces apply to zone interfaces
【多选题】
Which two advantages does the on-premise model for MDM deployment have over the cloud-based model？___
A. The on-premise model is easier and faster to de ploy than the cloud-based model
B. The on-premise model is more scalable than the cloud-based model
C. The on-premise model is generally less expensive than the cloud-based model
D. The on-premise model generally has less latency than the cloud- based model.
E. The on-premise model provides more control of the MDM solution than the cloud
【多选题】
Which two actions can an end usts take to manage a lost or stolen device in Cisco ISE？ ___
A. Activate Cisco ISE End point Protection Services to quarantine the device.
B. Add the mac address of the device to a list of blacklisted devices
C. Force the device to be locked with a PIN
D. Request revocation of the digital certificate of the device.
E. Reinstate a device that the user previously marked as lost or stolen
【多选题】
Which two problems can arise when a proxy firewall serves as the gateway between networks？___
A. It can prevent content caching
B. It can limit application support
C. It is unable to prevent direct connections to other networks
D. It can cause reduced throughput.
E. It is unable to provide antivirus protection
【多选题】
When using the Adaptive Security Device Manager（ASDM）， which two methods are available to add a new root certificate？___
A. Use sCep
B. Install from SFTP server
C. Install from a file
D. Use Https
E. Use LDAP
【多选题】
Which two are considered basic security principles？___
A. Accountability
B. Redundancy
C. High Availabilit
D. Integrity
E. Confidentiality
【多选题】
Which two roles of the Cisco WSA are true？___
A. IPS
B. firewall
C. antispam
D. web proxy
E. URL filter
【单选题】
Which next-generation encryption algorithm supports four variants？___
A. SHA-2
B. SHA-1
C. MD5
D. HMAC
【单选题】
What aims to remove the abil ity to deny an action？___
A. Non-Repudiation
B. Accountability
C. Integrity
D. Deniability
