补充

拖图

Cloud和On-Premise；

Cloud：
easy to scale the capacity up and down
highly agile
On-Premises：
infrstructure requires large and regular investments
highly customizable

云:
易于扩大和缩小容量
非常敏捷
本地:
基础设施需要大量定期投资
高度可定制的

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agent-based&agentless；

agent-based：
puppet
saltstack

agentless：
ansible

基于主体:
木偶
saltstack

无代理：
安赛波

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编程

csipt；看图；

Refer to the exhibit. After the code is run on a Cico lOS-XE router, the response code is 204, VIhat is the result of the scipt?
Interface GigabitEthernet2 is configured with lP address 10.10.10.1/24.
参考展品。代码在Cico lOS-XE路由器上运行后，响应代码是204,VIhat是scipt?
接口GigabitEthernet2配置了lP地址10.10.10.1/24。

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交换

VLAN；v2，preempt；

Refer to the exhibit An engineer must configure HSRP for VLAN 1000 on SW2.The secondary swich must immediately take over the role of active router If the interlink with the primary switch fails . Which command set completes this task?
工程师需要在SW2上为VLAN 1000配置HSRP。当主用交换机链路故障时，备用交换机必须立即接管主用路由器。哪个命令集完成这个任务?
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VLAN；VLAN 1涉及native VLAN；

Refer to the exhibi. An engineer must set up comnectivity between a campus aggregation layer and a branch ofice access layer.The engineer uses dynamic trunking protocol to establish this connection, however, management traffic on VLAN1 is not passing. which action resoves the issue and allow communicaton for all configured VLANs?
Configure the correct native VLAN on the remote interface
参见展览资料。工程师需要在园区汇聚层和分支机构接入层之间建立互联互通。工程师使用动态集群协议建立该连接，但VLAN1上的管理流量不通过。哪个动作可以解决问题并允许所有配置的vlan通信?
在对端接口上配置正确的本机VLAN
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port-channel；排除法，auto+auto是不通的；

Refer to the exhibt ,The trunk does not work over the back-to-back link between Swich1 interface Gig1/0/20 and Switch2 inerace Gig1/0/20. which configuration fixes the problem?

如图所示，switch1接口Gig1/0/20和Switch2接口Gig1/0/20之间的背靠背链路不支持中继。哪个配置可以解决问题?
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port-channel；P是passive，A是active，active+passive是通的，不需要修改成active+active；

Referto the exhibit. An engineer attempts to bundle interace Gio/0 into the port channel, but it does not function as expected .Which action resolves the issue?
Set LACP max-bundle to 2 on interface Port-channel
参考展品。工程师试图将接口Gi0/0捆绑到端口通道中，但它没有像预期的那样发挥作用。哪个操作解决了这个问题?
在接口Port-channel上配置LACP max-bundle为2

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port-channel；LACP是active+active/passive，PAgP是desirable+desirable/auto；题目要LACP，所以要把PAgP的desirable的改成active/passive；

Rer to the exhibit An administrator confgures two switches with LACP EtherChanes, but packes are not being exchanged between the switches.What is the reason,and what fixes the issue?

S2 is configured with PAgP. Change the channel group mode to active.
管理员在两台交换机上配置了LACP EtherChanels，但是交换机之间没有交换包。原因是什么，如何解决这个问题?
S2配置了PAgP。将通道组模式更改为激活模式。
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路由

TCAM；CAM是2层，TCAM是3层，有个T就加一层；MAC在CAM中，ACL和QoS在TCAM中；

ln which two ways does TCAM differ from CAM?(Choose two.)
CAM is used to make Layer 2 forwarding decisions, and TCAM is used for Layer 3 address lookups.The MAC address table is contained in CAM, and ACL and QoS Information ls stored in TCAM.
TCAM和CAM在哪两个方面不同?(选择两个。)
CAM用于第二层转发决策，TCAM用于第三层地址查找。MAC地址表存储在CAM中，ACL和QoS信息ls存储在TCAM中。

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CEF；dedicate memory，main memory；

How does Cisco Express Forwarding (CEF) switching differ from process switching on Cisco devices?
Cisco Express Forwarding (CEF) switching saves memory by sorting adjacency tables in dedicate memory on the line cards, and process swiching stores atables in the main memory

思科快速转发(CEF)交换与思科设备上的进程交换有何不同?
Cisco Express Forwarding (CEF)交换通过对线路卡上专用内存中的邻接表进行排序来节省内存，而进程交换将表存储在主内存中
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OSPF；without send不发送，要passive反对接口；

Refer to the exhitbit. An engineer must allow R1 to advertise the 192.168.1.024 network to R2.R1 must perfom this action without sending OSPF packes to SW1.Which command set should be applied?
参见附注。工程师必须允许R1向R2通告192.168.1.024网络。R1必须在不向SW1发送OSPF包的情况下执行此操作。应该应用哪个命令集?
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OSPF；EIGRP是DUAL，OSPF是DLA；

What is one difference between EIGRP and OSPF?
EIGRP uses the variance command lot unequal cost load balancing, and OSPF supports unequal cost balancing by defaut.
EIGRP uses the DUAL distance vector algorithm, and OSPF uses the Djkstra link-state algorithm
EIGRP和OSPF之间的一个区别是什么?
EIGRP采用方差命令组不等费负载分担，OSPF缺省支持不等费负载分担。
EIGRP使用DUAL距离矢量算法，OSPF使用Djkstra链路状态算法
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OSPF；看图；

Refer to the exhibit An engineer must prevent the R6 loopback from gettng into Area 2 and Area 3 from Area 0.Which action must the enginer take?
Apply a filter list outbound on R3 and R7
参考附录工程师必须防止R6环回从区域0进入区域2和区域3。工程师必须采取什么行动?
在R3和R7上应用筛选器列表出站
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OSPF；point-to-point；

Refer to the exhibit.R2 is the neighboring router of R1.R2 receives an advertisement for network 192 168.10.5032.Which configuration should be applied for the subnet to be advertised with the original /24 netmask?
参考展品。R2是R1的相邻路由器。R2接收到网络192 168.10.5032的通告。对于要发布的子网，应该应用哪种配置，使用原来的/24子网掩码?

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OSPF；3网；

Refer to the exhibit.CR2 and CR3 ate confgured with OSPF. which configuration, when appled to CR1.alows CR1 to exchange OSPF Information with.CR2 and CR3 but not with other network devices or on new Interfaces that are added to CR1?
参考展品。CR2和CR3配置OSPF。哪个配置，当应用到CR1。允许CR1与CR2和CR3，而不是与其他网络设备或添加到CR1的新接口?
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EIGRP和OSPF；EIGRP有：DUAL和多个metric；OSPF有：DAL和cost；

EIGRP：
Dual Diffusing Update algorithm
metrics are bandwidth,delay,reliability,load,and MTU
OSPF:
cost-based metric
Dijiktra algorithm

EIGRP:
双扩散更新算法
度量包括带宽、延迟、可靠性、负载和MTU
OSPF:
基于成本的度量
Dijiktra算法
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BGP；看图看remote-as；

Refer to the exhibit An engineer configures the BGP adjacency between R1 and R2,however it fails to establish Which action resolves the issue?
参考图工程师在R1和R2之间配置BGP邻接关系，但无法建立连接。该操作解决该问题?
Change the remote-as number on R1 to 6500.
将R1上的remote-as号更改为6500。
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BGP；idle变active需要no neighbor 关闭；

Refer to the exhibit. Which command set changes the neighbor state from ldle(Admin) to Active?
参考展品。哪个命令集将邻居状态从ldle(Admin)更改为Active?
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BGP；TCP-6指密码不匹配；6 password mismatch；6m；六米；

TCP-6-badauth：TCP6错认证
Refer to the exhibit An engineer attempts to establish BGP peering between router CORP and two lSP routers. What is the root cause for the failure between CORP and ISP#2?
工程师尝试在路由器CORP和两个lSP路由器之间建立BGP对等体。CORP和ISP#2之间失败的根本原因是什么?
There is a password mismatch between router CORP and router ISP#2.
这是路由器CORP和路由器ISP#2之间的密码不匹配。

no MD5 digest没有MD5摘要
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QoS；management是delay-sensitive；

How must network management traffic be treated when defining QoS policies?
as delay-sensitive traffic in a low latency queue
在定义QoS策略时，需要如何处理网管流量?
作为低延迟队列中的延迟敏感流量

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QoS；QT；前天；前台；

Which lPv4 packet field carries the QoS lP classification marking?
哪个lPv4报文字段携带了QoS lP分类标记?
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REST API；API key对应predetermined string；key string钥匙串；

What is the APl keys option for REST APl authentication?

a predetermined string that is passed from client to server
REST APl身份验证的APl密钥选项是什么?
从客户端传递给服务器的预定字符串
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REST API；204无内容，lo0出事了，选remove；

Refer to the exhibit. What does the response “204 No Content” mean for the REST APl request?
lnterface loopback 100 is removed from the configuration.
参考展品。响应“204 No Content”对于REST APl请求意味着什么?
取消配置接口环回100
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REST API；UseHTTPS；

How can an engineer prevent basic replay attacks from people who try to brute force a system via REST API?
工程师如何防止那些试图通过REST API暴力破解系统的人进行基本的重放攻击?
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Cisco SD-Access；single单点Q；

In a Cisco SD-Access solution, which protocol is used by an extended node to connect to a single edge node ?

在Cisco SD-Access解决方案中，扩展节点使用哪种协议连接到单个边缘节点?
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Cisco SD-Access；不选nonfabirc，选roam漫游；

Which function does a fabric wireless LAN controller perform In a Cisco SD-Access deployment?
manages fabric-enabled APs and forwards client registration and roaming information to the Control Plane Node
在思科SD-Access部署中，fabric无线局域网控制器执行哪些功能?
管理启用fabric的ap，并将客户端注册和漫游信息转发到控制平面节点

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SNMP；reboot；

A network monitoring system uses SNMP pling to record the statistis of rouer interfaces The SNMP queries work as expected until an engineer installs a new interface and reloads the router After this action, all SNMP queries for the router fail Wnat is the cause of this issue?
网络监控系统使用SNMP pling来记录路由器接口的统计信息SNMP查询正常工作，直到工程师安装新的接口并重新加载路由器。此操作后，所有针对路由器的SNMP查询都失败了。
The SNMPinterface index changed after reboot.
日志含义重启后snmp接口索引发生变化。
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SNMP；两个acl加一个control-plane；

An engineer must configure and validate a CoPP policy that allws the network management server to monitor router R1 via SNMP while protecting the control plane. Which two commands or command sets must be used?(Choose two.)
工程师必须配置并验证一个CoPP策略，允许网管服务器通过SNMP监控路由器R1，同时保护控制平面。必须使用哪两个命令或命令集?(选择两个。)

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HSRP；看图；

Refer to the exhibit.After coniguring HSRP an engineer enters the show standby command . Which two facts are derived from the output?(Choose two.)
lf Fa0/0 is shut down, the HSRP pnonty on R2 becomes 80
R2 is using the default HSRP hello and hold timers
参考展品。配置完HSRP后，工程师输入show standby命令。从输出中得到哪两个事实?(选择两个。)
如果Fa0/0被关闭，R2上的HSRP值变为80
R2使用缺省的HSRP hello和hold定时器
缺省hello time是3s，hold time是10s。
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NAT；extendable；可扩展性 /可延伸的 /可延长的

Refer to the exhibit.An engineer must configure static NAT on R1 to allow users HTTP access to the web server onTCP pot 80.The web server must be reachable through ISP 1 and lSP 2.Which command set should be applied to R1 to fulfill these requirements?
参考展品。工程师必须在R1上配置静态NAT，允许用户以HTTP方式访问tcp pot 80上的web服务器。web服务器必须通过ISP 1和lSP 2可达。应该对R1应用哪个命令集来满足这些需求?
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无线

WEB；loop；

Refer to the exhibit Users cannot reach the web server at 192.168.100.1.What is the root cause for the failure?

There is a loop in the path to the server.
用户无法连接到192.168.100.1的web服务器。失败的根本原因是什么?
在到服务器的路径中有一个循环。

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WLC；pre-shared key需要Policy，预先钥匙要有政策批准；

An engineer must create a new SSID on a Cisc0 9800 wreless LAN controler. The client has asked to use a pre-shared kay for authenticalion Wich profie must the engineer edit to achieve this requirement?
工程师需要在Cisc0 9800无线局域网控制器上新建SSID。客户要求使用预共享的验证密钥，工程师必须编辑配置文件来实现这一要求吗?
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WLAN；larger cipher；

A network engineer configures a WLAN controller with increased security for web access . There is lP connectvity with the WLAN contoller but the engineer cannot start a management session from a web browser.Which action resolves the issue?
Use a browser that supports 128-bit or larger ciphers.

网络工程师配置WLAN控制器，提高web访问的安全性。与WLAN控制器有lP连接，但工程师无法从web浏览器启动管理会话。哪种操作可以解决问题?
使用支持128位或更大密码的浏览器。

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AP；NVRAM涉及stored存储；

Which method is used by an AP to join HA controllers and is configured in NVRAM?
stored WLC information

AP通过哪种方式加入HA控制器且配置在NVRAM中?
存储WLC信息
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API；centralized controller集中控制；contral中心的，control控制；contral，control；

What does a northbound APl accomplish?
programmatic control of abstracted network resources through a centralized controller
向北的APl能完成什么?
通过集中控制器对抽象网络资源进行编程控制
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dBm；85-67=18

lf a client’s radio device receives a signal strength of -67 dBm and the noise floor is -85 dBm, what is the SNR value?
如果客户端的无线电设备接收到的信号强度为-67 dBm，而噪声底限为-85 dBm，那么信噪比值是多少?
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安全

AAA；

An engineer must enable a login autentication method that alows a user to log in by using local authentication ifall other defned authentication methods fail Which configuration should be applied?
工程师必须启用登录认证方式，当其他认证方式均失败时，允许用户使用本地认证方式登录。应该采用哪种配置?

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AAA；

An administrator must enable Telnet access to Router X using the router usernanme and password database for authentication.Which configuraton should be applied?
管理员必须通过路由器用户名和密码数据库开启Telnet访问Router X进行认证。应该应用哪个配置?
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ACL；

Refer to the exhibit.An engineer must permit taffic from these networks and block all other traffic An infomational log message should be triggered when traffic enters from these prefixes Which access list must be used?
参考展品。工程师必须允许来自这些网络的流量，并阻止所有其他流量。当流量从这些前缀进入时，应该触发信息日志消息。必须使用哪个访问列表?
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IP SLA；

An engineer must configure a multicast UDP jitter operation. Which configuration should be applied?
工程师必须配置组播UDP抖动操作。应该应用哪个配置?
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Line；only a password=line con 0，login；

Refer to the exhibit. Which configuration enables password checking on the console line, using only a password?
参考展品。哪种配置只使用密码就可以在控制台线上进行密码检查?
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firewall；malware麻辣味；

When firewall capabilities are considered, which feature is found only in Cisco next generation firewalls?
malware protection
当考虑防火墙功能时，哪些功能只在思科下一代防火墙中发现?
恶意软件防护
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VPN；3B；

Refer to the exhibit.VPN-A sends point-to-point traffic to VPN-B and receives trafic only from VPN-C VPN-B sends point-t-point traffic to VPN-C and receives traffic only from VPN-A.Which configuration is applied?
参考展品。VPN-A向VPN-B发送点到点流量，只接收来自VPN-C的流量。VPN-B向VPN-C发送点到点流量，只接收来自VPN-A的流量。应用哪个配置?

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logging；双7；

Refer to the exhibit.A network engineer is enabing logging to a local buffer to the terminal and to a syslog sever for all debugging level logs filtered by facility code 7. Which command is needed to complete this configuration snippet?
参考展品。网络工程师正在启用日志记录到本地缓冲区到终端和syslog服务器，用于所有由设施代码7过滤的调试级别日志。需要哪个命令来完成这个配置片段?
logging discriminator Disc1 severity includes 7 facility includes fac7
日志识别器Disc1严重性包括7设施包括fac7
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SSO；RP；

Which beneft is realized by implementing sso?

minimal network downtime following an RP switch over
通过实现sso可以实现哪些好处?
最小的网络停机后的RP切换

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应用

LISP；egress，server，egress；

How are map-register messages sent in a LISP deployment?
egress tunnel routers to map servers to determine the appropriate egress tunnel router
在LISP部署中映射寄存器消息是如何发送的?
出口隧道路由器映射服务器，以确定适当的出口隧道路由器
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GLBP；glbp，weighted；

A customer requests a design that includes GLBP as the FHRP The network architect discovers that the members of the GLBP group have different throughput capabilities. Which GLBP load balancing method supports this environment?
客户要求设计包含GLBP作为FHRP网络架构师发现GLBP组的成员具有不同的吞吐量能力。哪种GLBP负载平衡方法支持此环境?
weighted
加权 /受力的 /权法 /权重
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