【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.
查看试卷,进入试卷练习
微信扫一扫,开始刷题
答案
B
解析
暂无解析
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?___
A. 4
B. 3
C. 2
D. 5
【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?___
A. 2
B. 3
C. 4
D. 5
【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
【判断题】
通过传真送达的工作票,其工作许可手续应待正式工作票送到后履行。( ) 答案:正确
A. 对
B. 错
【判断题】
已终结的工作票(含工作任务单)、故障紧急抢修单、现场勘察记录至少应保存2年。( ) 答案:错误
A. 对
B. 错
【判断题】
配电工作票的有效期,以批准的停电时间为限。( ) 答案:错误
A. 对
B. 错
【判断题】
办理配电第一种工作票延期手续,应在工作票的有效期内,由工作签发人向工作许可人提出申请,得到同意后给予办理。( ) 答案:错误
A. 对
B. 错
【判断题】
工作票只能延期一次。延期手续应记录在记录簿上。( ) 答案:错误
A. 对
B. 错
【判断题】
工作票签发人应由熟悉人员文化水平、熟悉配电网络接线方式、熟悉设备情况、熟悉本规程的人员担任。( ) 答案:错误
A. 对
B. 错
【判断题】
配电工作许可人不包括用户变(配)电站运维人员。( ) 答案:错误
A. 对
B. 错
【判断题】
正确使用施工机具、安全工器具和劳动防护用品是工作班成员的安全责任。( ) 答案:正确
A. 对
B. 错
【判断题】
各工作许可人应在完成工作票所列由其负责的停电安全措施后,方可发出许可工作的命令。( ) 答案:错误
A. 对
B. 错
【判断题】
现场办理工作许可手续前,工作许可人应与工作票签发人核对线路名称、设备双重名称,检查核对现场安全措施,指明保留带电部位。( ) 答案:错误
A. 对
B. 错
【判断题】
带电作业需要停用重合闸(含已处于停用状态的重合闸),应向运维人员申请并履行工作许可手续。( ) 答案:错误
A. 对
B. 错
【判断题】
用户侧设备检修,需电网侧设备配合停电时,应得到用户停送电联系人的电话申请,经批准后方可停电。( ) 答案:错误
A. 对
B. 错
【判断题】
用户侧设备检修,电网侧设备配合停电。恢复送电,应接到用户停送电联系人的工作结束报告,做好录音并记录后方可进行。( ) 答案:正确
A. 对
B. 错
【判断题】
在用户设备上工作,许可工作前,工作负责人应检查确认用户设备的操作方法、安全措施符合作业的安全要求。( ) 答案:错误
A. 对
B. 错
【判断题】
采用当面许可的方法许可开始工作的命令时,工作许可人和工作负责人应分别记录许可时间和双方姓名,复诵核对无误。( ) 答案:错误
A. 对
B. 错
【判断题】
工作中若有特殊情况,工作许可人可变更运行接线方式和安全措施,变更后需告知工作负责人。( ) 答案:错误
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、带电部位和现场安全措施,告知危险点,并履行签名确认手续,方可下达开始工作的命令。( ) 答案:正确
A. 对
B. 错
【判断题】
工作负责人、工作许可人、专责监护人应始终在工作现场。( ) 答案:错误
A. 对
B. 错
【判断题】
检修人员(包括工作负责人)不宜单独进入高压配电室、开闭所等带电设备区域内。( ) 答案:正确
A. 对
B. 错
【判断题】
工作许可人、工作负责人对有触电危险、检修(施工)复杂容易发生事故的工作,应增设专责监护人,并确定其监护的人员和工作范围。( ) 答案:错误
A. 对
B. 错
【判断题】
工作期间,专责监护人若需暂时离开工作现场,应指定能胜任的人员临时代替,离开前应将工作现场交待清楚,并告知全体工作班成员。( ) 答案:错误
A. 对
B. 错
【判断题】
工作间断,工作班离开工作地点,若接地线拆除,恢复工作前应重新验电、装设接地线。( ) 答案:正确
A. 对
B. 错
【判断题】
工作许可人在接到所有工作签发人(包括用户)的终结报告,并确认所有工作已完毕,所有工作人员已撤离,所有接地线已拆除,与记录簿核对无误并做好记录后,方可下令拆除各侧安全措施。( ) 答案:错误
A. 对
B. 错
【判断题】
工作地点,应停电的线路和设备包括工作地段内有可能反送电的各分支线(包括用户)。( ) 答案:正确
A. 对
B. 错
【判断题】
检修线路、设备停电,应把工作地段内所有可能来电的电源全部断开(任何运行中星形接线设备的中性点,应视为带电设备)。( ) 答案:正确
A. 对
B. 错
【判断题】
停电时应拉开隔离开关(刀闸),手车开关应拉至试验或检修位置,使停电的线路和设备两端都有明显断开点。( ) 答案:错误
A. 对
B. 错
【判断题】
若无法观察到停电线路、设备的断开点,应有能够反映线路、设备运行状态的电气和机械等指示。( ) 答案:正确
A. 对
B. 错
【判断题】
禁止在只经断路器(开关)断开电源且未接地的高压配电线路或设备上工作。( ) 答案:正确
A. 对
B. 错
【判断题】
两台及以上配电变压器低压侧共用一个接地引下线时,其中任一台配电变压器停电检修,其他配电变压器也应停电。( ) 答案:正确
A. 对
B. 错
【判断题】
配电线路、设备停电时,对可直接在地面操作的断路器(开关)、隔离开关(刀闸)的操作机构应悬挂“禁止合闸,有人工作!”或“禁止合闸,线路有人工作!”的标示牌。( ) 答案:错误
A. 对
B. 错
【判断题】
配电线路、设备停电时,对不能直接在地面操作的断路器(开关)、隔离开关(刀闸)的操作机构应加锁。( ) 答案:错误
A. 对
B. 错
【判断题】
配电线路和设备停电检修,接地前,应使用接触式验电器或测电笔。( ) 答案:错误
A. 对
B. 错
【判断题】
架空配电线路和高压配电设备验电应有人监护。( ) 答案:正确
A. 对
B. 错
【判断题】
低压验电前应先在有电部位上试验,以验证验电器或测电笔良好。( ) 答案:错误
A. 对
B. 错
【判断题】
高压验电时,使用伸缩式验电器,绝缘棒应拉到位,验电时手应握在绝缘棒处,不得超过护环,宜戴绝缘手套。( ) 答案:错误
A. 对
B. 错
【判断题】
检修联络用的断路器(开关)、隔离开关(刀闸),应在其来电侧验电。( ) 答案:错误
A. 对
B. 错
【判断题】
低压配电线路和设备停电后,检修或装表接电前,应在与停电检修部位或表计电气上直接相连的可验电部位验电。( ) 答案:正确
A. 对
B. 错
【判断题】
配合停电的同杆(塔)架设线路装设接地线要求与检修线路相同。( ) 答案:正确
A. 对
B. 错
【判断题】
装设、拆除接地线可不在监护下进行。( ) 答案:错误
A. 对
B. 错
【判断题】
绝缘导线的接地线应装设在验电接地环上。( ) 答案:正确
A. 对
B. 错