What is the maximum num ber of methods that a single method _答案

【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

查看试卷，进入试卷练习

微信扫一扫，开始刷题

答案

解析

暂无解析

相关试题

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【单选题】

Which type of social engineering attack targets top executives？___

A. whaling

B. vishin

C. spear phishing ng

D. baiting

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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.

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【多选题】

Which two are considered basic security principles？___

A. Accountability

B. Redundancy

C. High Availabilit

D. Integrity

E. Confidentiality

查看答案解析

【多选题】

Which two roles of the Cisco WSA are true？___

A. IPS

B. firewall

C. antispam

D. web proxy

E. URL filter

查看答案解析

【单选题】

Which next-generation encryption algorithm supports four variants？___

A. SHA-2

B. SHA-1

C. MD5

D. HMAC

查看答案解析

【单选题】

What aims to remove the abil ity to deny an action？___

A. Non-Repudiation

B. Accountability

C. Integrity

D. Deniability

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【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

查看答案解析

【单选题】

When you edit an IPS subsignature， what is the effect on the parent signature and the family of subsignatures？___

A. The change applies to the parent signature and the entire family of subsignatures

B. The change applies to the parent signature and the subsignature that you edit

C. The change applies only to subsignatures that are numbered sequentially after the subsignature that you edit

D. Other signatures are unaffected， the change applies only to the subsignature that you dit

查看答案解析

【单选题】

Which type of mechanism does Cisco FirePOWER de ploy to protect ag detected moving across other networks？___

A. antivirus scanning

B. policy-based

C. reputation-based

D. signature-based

查看答案解析

【单选题】

What action must you take on the ise to blacklist a wired device？___

A. Locate the switch through which the device is connected and push an a cl restricting all access by the device

B. Issue a CoA request for the de vice's mac address to each access switch in the network

C. Revoke the device's certificate so it is unable to authenticate to the network

D. Add the device's MAc address to a list of black listed devices

查看答案解析

【单选题】

Which type of firewall can perform deep packet inspection？___

A. packet-filtering firewall

B. stateless firewall

C. application firewall

D. personal firewall

查看答案解析

【单选题】

What is the main purpose of Control Plane Policing？___

A. to prevent exhaustion of route-proce ssor resources

B. to organize the egress packet queues

C. to define traffic classes

D. to maintain the policy map

查看答案解析

【单选题】

Which attack can be prevented by OSPF authentication？___

A. smurf attack

B. IP spoofing attack

C. denial of service attack

D. buffer overflow attack

查看答案解析

【单选题】

What is the best definition of hairpinning？___

A. ingress traffic that traverses the outbound interface on a device

B. traffic that enters one interface on a device and that exits through another interface

C. traffic that enters and exits a device through the same interface

D. traffic that tunnels through a device interface

查看答案解析

【单选题】

Which SNMPv3 security level provides authentication using HMAC with MD5， but does not use encryption？___

A. authPriv

B. authNo Priv

C. noAuthNoPriv

D. NoauthPriv

查看答案解析

【单选题】

You have implemented a dynamic blacklist， using security intelligence to block illicit network activity. However， the blacklist contains several approved connections that users must access for usiness pur poses. Which action can you take to retain the blacklist while allowing users to access the approve d sites？___

A. Create a whitelist and manually add the approved addresses.

B. Disable the dynamic blacklist and deny the specif ic address on a whitelist while permitting the others

C. Edit the dynamic blacklist to remove the approved addresses

D. Disable the dynamic blacklist and create a static blacklist in its place

查看答案解析

【单选题】

When connecting to an external resource,you must change a source IP address to use one IP address from a range of 207.165.201.1 to 207.165.1.30. Which option do you implement ?___

A. dynamic source NAT that uses an IP ad dress as a mapped source

B. static destination NAT that uses a subnet as a real de stination

C. dynamic source NAT that uses a range as a mapped source

D. static destination NAT that uses a subnet as a real source

查看答案解析

推荐试题

【单选题】

纯电容元件在电路中___电能。

A. 储存

B. 分配

C. 消耗

查看答案解析

【单选题】

当电压为5V时,导体的电阻值为5欧,那么当电阻两端电压为2V时,电阻值为___欧。

A. 10

B. 5

C. 2

查看答案解析

【单选题】

电容器可用万用表___档进行检查。

A. 电压

B. 电流

C. 电阻

查看答案解析

【单选题】

对称负载接成星形时,三相总电流___。

A. 等于零

B. 等于其中一相电流的三倍

C. 等于其中一相电流。

查看答案解析

【单选题】

一段有源支路如图1所示，AB两端的电压UAB为___。

A. 10 V

B. —2V

C. 2V

D. —10V

查看答案解析

【单选题】

如图2电路中，等效电阻=___

A. 150Ω

B. 900Ω

C. 600Ω

D. 100Ω

查看答案解析

【单选题】

电流表的读数是4A，则电路中电流表的读数是 ___

A. 4A

B. 1A

C. 3A

D. 0A

查看答案解析

【单选题】

在R、L、C串联电路中，已知＝3Ω，＝5Ω，＝8Ω，则电路的性质为 ___。

A. 感性

B. 容性

C. 阻性

D. 不能确定

查看答案解析

【单选题】

工业生产中大量的设备均为感性负载，功率因数往往很低，常采取___的方法来提高电网的功率因数。

A. 并联电容

B. 串联电容

C. 串联电感

D. 并联电感

查看答案解析

【单选题】

交流电压表及电流表指示的数值是___

A. 平均值

B. 有效值

C. 最大值

D. 瞬时值

查看答案解析

【单选题】

RLC串联电路发生谐振，，R=10Ω，Ω，则谐振时的感抗为___

A. 10Ω

B. 40Ω

C. 20Ω

D. 30Ω

查看答案解析

【单选题】

RL从电路获得最大功率，此时RL=___。

A. 2Ω

B. 5Ω

C. 4Ω

D. 9Ω

查看答案解析

【单选题】

使用电解电容时___。

A. 负极接高电位，正极接低电位

B. 正极接高电位，负极接低电位

C. 正极接高电位，负极也可以接高电位

D. 不分正负极

查看答案解析

【单选题】

开关接1时，电压表的读数为___。

A. 0V

B. 0.2V

C. 1.96V

D. 2V

查看答案解析

【单选题】

开关接2时，电流表的电流为___。

A. 0A

B. 10A

C. 0.2A

D. 约等于0.2A

查看答案解析

【单选题】

开关接1时，电流表中流过的短路电流为___。

A. 0A

B. 0.2A

C. 10A

D. 约等于0.2A

查看答案解析

【单选题】

正弦交流电常用的表达方法有___。

A. 解析式表示法

B. 波形图表示法

C. 相量表示法

D. 以上都是

查看答案解析

【单选题】

电感两端的电压相位超前电流___。

A. 90°

B. 180°

C. 360°

D. 30°

查看答案解析

【单选题】

电容两端的电压相位滞后电流___。

A. 30°

B. 90°

C. 180°

D. 360°

查看答案解析

【单选题】

应用戴维南定理求含源二端网络的输入等效电阻是将网络内各电动势___

A. 串联

B. 并联

C. 短接

D. 开路

查看答案解析

【单选题】

LC 选频振荡电路，当电路频率等于谐振频率时，电路性质为___。

A. 电阻性

B. 感性

C. 容性

D. 纯电容性

查看答案解析

【单选题】

阻值为4Ω的电阻和容抗为3Ω的电容串联，总复数阻抗为___

A. 3+j4

B. 3-j4

C. 4+j3

D. 4-j3

查看答案解析

【单选题】

电动势为10V，内阻为2Ω的电压源变换成电流源时，电流源的电流和内阻是___

A. 10A，2Ω

B. 20A，2Ω

C. 5A，2Ω

D. 2A，5Ω

查看答案解析

【单选题】

电流为5A，内阻为2Ω的电流源变换成一个电压源时，电压源的电动势和内阻为___

A. 10V，2Ω

B. 2.5V，2Ω

C. 0.4V，2Ω

D. 4V，2Ω

查看答案解析

【单选题】

额定电压都为220V的40W、60W、100W三灯泡串联在220V的电源中，它们的发热量由大到小排列为___

A. 100W 60W 40W

B. 40W 60W 100W

C. 100W 40W 60W

D. 60W 100W 40W

查看答案解析

【单选题】

在正弦交流电的解析式i=ImSin(ωt +φ)中，φ表示___

A. 频率

B. 相位

C. 初相位

D. 相位差

查看答案解析

【单选题】

正弦交流电压u=100Sin(628t + 600)V，它的最大值为___。

A. 100 V

B. 100 V

C. 60V

D. 628 V

查看答案解析

【单选题】

能表示容性电路电压与电流关系的相量图是___。

查看答案解析

【单选题】

如图判断同名端为___

A. a与c

B. a与 d

C. b与c

查看答案解析

【单选题】

电路中___定律指出：流入任意一节点的电流必定等于流出该节点的电流。

A. 欧姆

B. 基尔霍夫电流

C. 楞次

D. 基尔霍夫电压

查看答案解析

【单选题】

已知电源电压为12 V ,四只相同灯泡的工作电压都是6 V，要使灯泡都能正常工作，则灯泡应___

A. 全部串联

B. 两只并联后与另两只串联

C. 两两串联后再并联

D. 全部并联

查看答案解析

【单选题】

用戴维南定理分析电路“入端电阻”时，应将内部的电流源___处理。

A. 作开路

B. 作短路

C. 不进行

查看答案解析

【单选题】

任何一个含源二端网络都可以用一个适当的理想电压源与一电阻___来代替。

A. 串联

B. 并联

C. 串联或并联

D. 随意联接

查看答案解析

【单选题】

用交流电流表测得交流电流10A，则电路中电流的最大值为___。

A. 10A

B. 14.1A

C. 20A

D. 70.7A

查看答案解析

【单选题】

如右图所示电路中，已知各支路的电流I1=I2=10A，则电路的总电流I为___。

A. 20A

B. 0 A

C. 14.1A

D. 50A

查看答案解析

【单选题】

1杂质半导体中多数载流子的浓度取决于___

A. 温度

B. 杂质浓度

C. 电子空穴对数目

查看答案解析

【单选题】

2在电场作用下，空穴与自由电子运动形成的电流方向___

A. 相同

B. 相反

查看答案解析

【单选题】

3光敏二极管应在___下工作

A. 正向电压

B. 反向电压

查看答案解析

【单选题】

4下列半导体材料哪一种的热敏性突出“导电性受温度影响最大”？___

A. 本征半导体

B. N型半导体质

C. P型半导体

查看答案解析

【单选题】

5用万用表电阻挡检测某一个二极管时，发现其正、反电阻均近于1000KΩ，这说明该二极管是属于___。

A. 短路状态；

B. 完好状态；

C. 断路状态；

D. 极性搞错。

查看答案解析