【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
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相关试题
【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
【单选题】
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
【单选题】
Which statements about the native VLAN is true ？___
A. It is susceptible to VLAN hopping attacks.
B. It is the Cisco recommended VLAN for switch-management traffic
C. It is most secure when it is a ssigned to vLAn 1.
D. It is the cisco-recomme nded vlan for user traffic
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18.搬运密封的浓酸或浓苛性钠溶液的坛子时，禁止用肩扛、背驮或抱住的方法搬运。( )
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20. 1kg干蒸汽中含饱和蒸汽水的质量分数称为湿度。( )
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21.同一体积的物体比容越大，表明物质越轻，密度越大，表明物质越重。( )
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22.凡是有温差的物体就一定有热量传递。( )
【判断题】
23.导体中电流的正方向与自由电子的流动方向相同。( )
【判断题】
24.电流通过电阻时，电阻就会发热，将电能转变成热能，这种现象叫作电流的热效应。( )
【判断题】
25.相电压为发电机(变压器)的每相绕组两端的电压，即火线与零线的电压。( )
【简答题】
3.影响树脂工作交换容量的主要因素有哪些?
【简答题】
4.锅炉停备用保护的基本原理是什么?采用氨和联氨混合液进行湿法保护时，药液浓度一般控制为多少?
【简答题】
5.为什么反渗透对原水预处理质量要求特别高?
【简答题】
6.给水系统中发生氧腐蚀的原理是什么?有何特征?
【简答题】
计算题:
1.测定某试样中的Cl-含量(%),5次测定结果为37.45、37.20、37.50、37.30、37.25，计算此测定结果的平均值、平均偏差和标准偏差。
【简答题】
计算题:
2.一台阳离子交换器，其直径D=2.5m，树脂层高度HZH=1.6m，树脂工作交换容量EG=800mol/m3,再生时需用p=310g/L的工业盐酸多少升?
【简答题】
计算题:
3.一台阳离子交换器，其直径D=2.5m，再生一次需p=310g/L的工业盐酸1114L。再生时，再生液盐酸浓度p=30g/L，流速为v=5m/h，求进酸需要多长时间?
【简答题】
计算题:
4.若将10mL浓度为0.15mol/ L BaCI2溶液与40mL浓度为0.020mol/LNa2SO4溶液混合，通过计算，试判断有否BaSO4沉淀生成?(Ksp,BaSO4=1.5×10-9)
【简答题】
计算题:
5.某厂除盐系统中，强酸阳床入口水碱度为3.5mmol/L,而出口水酸度为4.5mmol/L,树脂装载量为8m3,周期制水量为1400t,求该强酸阳树脂的工作交换容量。
【简答题】
高级电厂水处理值班员技能要求试卷
一、监视调整能力
1.滤池反洗强度过大或过小有什么影响？
【简答题】
高级电厂水处理值班员技能要求试卷
一、监视调整能力
2.简述反渗透膜浓差极化的后果及运行中如何避免或减少浓差极化现象发生。
【简答题】
高级电厂水处理值班员技能要求试卷
二、安全排障能力
1.使用联氨时应注意哪些问题？
【简答题】
高级电厂水处理值班员技能要求试卷
二、安全排障能力
2.浓碱液流不到碱计量箱的故障原因及处理方案？
【简答题】
高级电厂水处理值班员技能要求试卷
二、安全排障能力
3.对于除盐水箱中不合格的除盐水和已进入系统中的除盐水应怎样处理？
【简答题】
高级电厂水处理值班员技能要求试卷
二、安全排障能力
4.锅炉停备用保护的原则是什么？
【简答题】
高级电厂水处理值班员技能要求试卷
三、计算表达能力
有一台阳离子交换器，其阳树脂全交换容量EQ=1800mmol/L，当充分再生时，测得其再生度b再=80%，当运行失效时，测得其饱和度b饱=70%，求其工作交换容量EG。
【简答题】
高级电厂水处理值班员技能要求试卷
四、分析判断能力
1.试分析离子交换器达不到出力的原因。
【简答题】
高级电厂水处理值班员技能要求试卷
四、分析判断能力
2.试分析混床内树脂反洗分层不清的原因。
【简答题】
高级电厂水处理值班员技能要求试卷
五、质量与管理能力
应该从哪些方面评价水化学工况的优劣？
【单选题】
将铁片放入下列溶液中，充分反应后溶液质量减少的是（ ）
(A)三氯化铁 (B)稀硫酸 (C)硫酸铜 (D)浓盐酸
A. 三氯化铁
B. 稀硫酸
C. 硫酸铜
D. 浓盐酸
【单选题】
对于化学反应A+B=C+D，在下列情况下反应时，反应速度最快的是( )
A. 20mL含A和B各0.001mol的溶液
B. 50mLA和B各0.01mol的溶液
C. 0.lmol/L的A和B溶液各10mL
D. 0.1mol/L的A和B溶液各20mL
【单选题】
在未知溶液中，加入氯化钡和稀硝酸，则析出白色沉淀，未知溶液中可能含有( )
(A)碳酸根 (B)磷酸根 (C)硫酸根 (D)氯离子
A. 碳酸根
B. 磷酸根
C. 硫酸根
D. 氯离子
【单选题】
下列称谓，哪一个正确( )。
A. 氧的摩尔数为2
B. 氧分析的物质的量是2mol
C. 2mol分子氧
【单选题】
1L溶液中含有0.1mol硫酸，则此硫酸溶液的浓度c(1/2H2SO4)等于( )mol/L
(A)0.1 (B)0.2 (C)0.3 (D)0.05
A. 0.1
B. 0.2
C. 0.3
D. 0.05
【单选题】
电导率的单位是( )
(A)S/cm (B)S (C)cm (D)Ω
【单选题】
在E=E0+spx中为消除温度对s的影响，在仪表中是通过( )来实现。
A. 定位调节
B. 温度补偿
C. 等电势调节
D. 斜率补偿
【单选题】
离子选择性电极的性能主要决定于( )。
A. 膜的种类和制造技术
B. 使用方法
C. 温度
D. 溶液的搅拌
【单选题】
强酸阳离子交换树脂的基准型是( )
A. 钠型
B. 氢型
C. 钙镁型
D. 铁铝型
【单选题】
下列设备中，树脂需移至体外进行反洗的设备是( )。
A. 顺流再生固定床
B. 逆流再生固定床
C. 浮动床
D. 双流床
