【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.
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相关试题
【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
【单选题】
There are two versions of IKE:IKEv1 and IKEv2. Both IKEv1 and IKEv2 protocols operate in phases IKEv1 operates in two phases. IKEv2 operates in how many phases？___
【单选题】
What does the dh group refer to？___
A. length of key for hashing C
B. length of key for encryption
C. tunnel lifetime key
D. length of key for key exchange
E. length of key for authentication
【单选题】
Which path do you follow to enable aaa through the SDM ？___
A. Configure Tasks > AAA
B. Configure > Addition Authentication > AAA
C. Configure > AAA
D. Configure > Additional Tasks > AAA
E. Configure Authentication > AAA
【单选题】
which technology cloud be used on top of an MPLS VPN to add confidentiality ？___
A. IPsec
B. 3DES
C. AES
D. SSL
【单选题】
Which term is most closely aligned with the basic purpose of a SIEM solution? ___
A. Non-Repudiation
B. Accountability
C. Causality
D. Repudiation
【单选题】
You have just deployed SNMPv3 in your environment， Your manager asks you to make sure that our SNMP agents can only talk to the SNMP Manager. What would you configure on your SNMI agents to satisfy this request？___
A. A SNMP View containing the SNMP managers
B. Routing Filter with the SNMP managers in it applied outbound
C. A standard ACL containing the SNMP managers applied to the SNMP configuration
D. A SNMP Group containing the SNMP managers
【单选题】
Which feature prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port？___
A. BPDU filte
B. DHCP snooping
C. BPDU guard
D. Port Fast
【单选题】
Which command enables port security to use sticky MAC addresses on a switch？___
A. switchport port-security violation restrict
B. switchport port-security mac-address sticky
C. switchport port-security violation protect
D. switchport port-security
推荐试题
【单选题】
(B737ng)压力加油当油箱加满时,加油活门为什么会自动关闭？ ___
A. 通气管路
B. 浮子活门
C. 浮子电门
D. 单向活门
【单选题】
(B737ng)压力加油的压力为:___
A. A.45PSI
B. B.50PSI
C. C.55PSI
D. D.A和B都是正确的
【单选题】
(B737ng)压力组件的作用是___
A. A．增压液压油箱
B. B．过滤并分配液压泵的输出到使用系统
C. C．调节液压泵的输出压力
D. D．将液压油增压到3000psi分配到使用系统
【单选题】
(B737ng)液压系统的油箱之间：___
A. A．是互相用平衡管相连通的
B. B．只有“A”系统与备用系统油箱相连通
C. C．只有“B”系统与备用系统的油箱相连
D. D．互不相连
【单选题】
(B737ng)以下机型在APU发生火警时会自动关车的是___
A. 737NG
B. 737-300/500
C. 737-400
D.
【单选题】
(B737ng)由于APU的供油在1号油箱，737NG使油箱平衡的方法是（保证先使用中央油箱的燃油）：___
A. 当中油箱泵关后，由发动机附件控制盒电控打开燃油回油关断活门，由左前泵把中油箱油抽到1号油箱20分钟，且中央油箱泵出口压力较高
B. 中央油箱泵出口压力较高
C. 当1号油箱油用到约一半是，燃油回油关断活门的浮子打开，由左前泵把中油箱的油抽到1号油箱
D. B&C
【单选题】
(B737ng)油箱水排放活门作用是：___
A. 用于排放油箱的水分
B. 用于排放油箱然油
C. 用于排放油箱污染物
D. 以上都正确
【单选题】
(B737ng)在什么情况下主警告灯和系统警告灯亮?___
A. A.当1号主燃油箱的一个增压泵低压时
B. B.1号主燃油箱和中央油箱各有一个泵低压时
C. C.2号主燃油箱两个泵都低压时
D. D.B和C都是正确的
【单选题】
(B737ng)在增压泵失效的情况下,发动机:___
A. A.靠高压燃油泵和重力得到燃油
B. B.靠备用增压泵供油
C. C.得不到燃油
D. D.A和B都是正确的
【单选题】
(B737ng)中央油箱的接近口盖在:___
A. A．机翼下表面
B. B．左空调舱
C. C．右空调舱
D. D．主轮舱
【单选题】
(B737ng)737NG几个关断燃油活门的电池组件，可以控制关断几个活门？___
A. 1，1
B. 2，2
C. 1，3
D. 2，4
【单选题】
(B737ng)737NG燃油关断活门的电池位于___
A. 主电子舱内
B. 前电子舱内
C. P6板内
D. P18板内
【单选题】
(B737ng)737NG使油箱平衡的方法是（保证先使用中央油箱的燃油）：___
A. 当中油箱泵关后，由发动机附件控制盒电控打开燃油回油关断活门，由左前泵把中油箱油抽到1号油箱20分钟，且中央油箱泵出口压力较高
B. 中央油箱泵出口压力较高
C. 当1号油箱油用到约一半是，燃油回油关断活门的浮子打开，由左前泵把中油箱的油抽到1号油箱
D. B&C
【单选题】
(B737ng)B系统油箱内的液压油,EDP,PTU和EMDP各自不能使用的油量为多少加仑？___
A. 3.5,0,1.0
B. 3.5,1.0,0
C. 1.0,0,3.5
D. 1.0,3.5,0
【单选题】
(B737ng)EDP及EMDP在冷却不足(相应燃油箱油量低于1675LBS)情况下,最多能工作_________
A. A．2分钟
B. B．20分钟
C. C．30分钟
D. D．50分钟
【单选题】
(B737ng)把左主燃油箱的燃油交输至右主燃油箱:___
A. 打开左主油箱增压泵、交输活门、抽油活门、右主油箱加油活门
B. 打开左主油箱增压泵、抽油活门、右主油箱加油活门
C. 打开左主油箱增压泵、交输活门、右主油箱加油活门
D. 打开右主油箱增压泵、交输活门、抽油活门、右主油箱加油活门
【单选题】
(B737ng)备用系统低油量灯在油量低于_______满油量时点亮. ___
A. A. 30%
B. B. 88%
C. C. 91%
D. D. 50%
【单选题】
(B737ng)抽出或串走中央油箱内燃油,必须: ___
A. A． 将油箱油泵关断
B. B． 将油箱油泵接通工作
C. C． 供有交流电源
D. D． 供有直流电源
【单选题】
(B737ng)当使用漏油式油尺时:___
A. 油尺上的读数仅供参考
B. 拆掉油尺后,油箱的油会漏出来
C. 必须从飞机姿态的修正容积表中查出相应的油量
D. 可以直接从油尺上读到油箱里的油量
【单选题】
(B737ng)当中央或大翼油箱抽油时，必须监控燃油泵低压指示灯，在第一个燃油泵低压指示出现时，将两个燃油泵置于什么位置___
A. 关断
B. 接通
C. 任何位置
D. 以上都不对
【单选题】
(B737ng)发动机滑油箱勤务面板是在: ___
A. A． 前缘整流包皮上
B. B． 左侧反推包皮上
C. C． 右侧风扇包皮上
D. D． 左侧风扇包皮上
【单选题】
(B737ng)飞机已通电，加油站如何获得电源？___
A. 完全打开加油站面板，燃油电源控制电门自动闭合
B. 接通前服务员面板上电门
C. 驾驶舱燃油控制面板接通电源
D. 打开加油站面板，将加油站上控制电门打开
【单选题】
(B737ng)飞机在正常飞行时如何保证先使用中央油箱的燃油？___
A. A．中央油箱泵输出压力比较大
B. B．中央油箱的油面比较高
C. C．中央油箱泵出回的单向活门压降较小
D. D．有专门的顺序活门控制
【单选题】
(B737ng)关于737NG加油面板说法错误的是___
A. NG在P15作表TEST会影响驾驶仓CDS燃油指示
B. NG在P15作表TEST不会影响驾驶仓CDS燃油指示
C. 加油过多时，P15表会闪动
D. NG飞机P15有‘燃油门电门旁通’电门
【单选题】
(B737ng)关于南航最新的737NG燃油系统正确的是___
A. A.增加APU直流燃油泵
B. B.增加密度计
C. C.和其它NG没区别
D. D.A&B
【单选题】
(B737ng)关于燃油交输的描述错误的是___
A. 燃油交输时应打开交输活门
B. 燃油交输都必须经过加油总管
C. 在空中可以进行燃油交输
D. 只有在地面才能进行交输
【单选题】
(B737ng)关于燃油交输的哪种说法是错误的?___
A. 燃油交输都必须经过加油总管
B. 在空中可以进行燃油交输
C. 只有在地面才能进行交输
D. 燃油交输时应打开交输活门
【单选题】
(B737ng)交输活门关闭时，驾驶舱交输活门打开灯指示为：___
【单选题】
(B737ng)燃油泵上的清洗滤堵塞将旁通燃油到: ___
A. A． MEC内
B. B． 燃油泵低压级出口
C. C． 燃油泵高压级进口
D. D． 伺服燃油
【单选题】
(B737ng)燃油关断活门是由:___
A. A.只有起动手柄控制
B. B.只有灭火手柄控制
C. C.P5仪表板上的起动开关控制
D. D.A或B
【单选题】
(B737ng)燃油系统左前泵电门未按压接通低压灯熄灭表示: ___
A. A． 左前燃油泵系统故障
B. B． 发动机起动自动供油
C. C． APU起动自动供、油
D. D． 发动机吸力供油
【单选题】
(B737ng)如果想把左主燃油箱的燃油串油至右主燃油箱:___
A. 打开左主油箱增压泵、交输活门、右主油箱加油活门
B. 打开右主油箱增压泵、交输活门、抽油活门、右主油箱加油活门
C. 打开左主油箱增压泵、交输活门、抽油活门、右主油箱加油活门
D. 打开左主油箱增压泵、抽油活门、右主油箱加油活门
【单选题】
(B737ng)若某个加油浮子电门停留在开位触点上不再工作,能用来控制加油的是:___
A. A.人工控制加油活门(工超控)
B. B.加油活门电门
C. C.辅助加油电源控制电门
D. D.电瓶电门
【单选题】
(B737ng)三个燃油箱都有燃油,六个油泵电门都接通时优先使用中央油箱 燃油是因为: ___
A. A． 中央油箱增压泵与左右主油箱泊泵不同
B. B． 增压泵的出口单向活门不同
C. C． 它们的油泵和出口单向活门都不同
D. D． 以上答案都不对
【单选题】
(B737ng)为了保证发动机驱动泵正常工作，左右燃油箱的油量：___
A. A．必须不少于1675磅（760kg）
B. B．必须达到油箱容积的50％以上
C. C．没有要求
D. D．必须不少于1吨
【单选题】
(B737ng)下列关于液压系统附件的描述哪一个是正确的___
A. A．维护油箱内浮子传感器时应避免让浮子碰到竖管
B. B．油箱增压组件中的释压活门可用来人工释压油箱
C. C．A,B系统油箱油量是以加仑为单位显示在P5面板上
D. D．油滤的滤芯是可清洗的,可重复使用
【单选题】
(B737ng)压力加油当油箱加满时,加油活门自动关闭是因为油箱内什么部件工作: ___
A. 浮子活门
B. 浮子电门
C. 单向活门
D. 通气管路
【单选题】
(B737ng)在燃油系统的增压泵失效的情况下,发动机如何得到燃油___
A. 靠发动机本体的高压燃油泵和重力得到燃油
B. 靠备用增压泵供油
C. 得不到燃油
D. A和B都是正确的
【单选题】
(B737ng)在中央或大翼油箱抽油时，必须监控燃油泵低压指示灯，在第一个燃油泵低压指示出现时将两个燃油泵置于____位___
A. 任何位置
B. 关断
C. 接通
D. 以上都对
【单选题】
(B737ng)增压泵失效的情况下,发动机:___
A. 得不到燃油
B. 靠高压燃油泵和重力得到燃油
C. 靠备用增压泵供油
D. B和C都是正确的
