Which two pieces of information are necessary to compute SNR、 (Choose two.)计算 SNR 需要哪两条信息？ （选择两项。）

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• 1A network administrator is implementing a routing configuration change and enables routing debugs to track routing behavior during the change. The loggingoutput on the terminal is interrupting the command typing process.Which two actions can the network administrator take to minimize the possibility of typing commands incorrectly、 (Choose two.)网络管理员正在实施路由配置更改并启用路由调试以跟踪更改期间的路由行为。 终端上的日志输出中断了命令输入过程。 网络管理员可以采取哪两项措施来最大程度地减少错误键入命令的可能性？ （选择两项。）

  A.Configure the logging synchronous global configuration command.

  B.Configure the logging synchronous command under the vty.

  C.Increase the number of lines on the screen using the terminal length comman

  D.B.Configure the logging synchronous command under the vty.C.Increase the number of lines on the screen using the terminal length command.D.Configure the logging delimiter featur

  E.E.Press the TAB key to reprint the command in a new line.

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• 2Which statements are used for error handling in Python、哪些语句用于 Python 中的错误处理？

  A.try/catch

  B.catch/release

  C.block/rescue

  D.try/except

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• 3What are two benefits of virtualizing the server with the use of VMs in a data center environment、 (Choose two.)在数据中心环境中使用 VM 虚拟化服务器有哪两个好处？ （选择两项。）

  A.reduced rack space, power, and cooling requirements

  B.smaller Layer 2 domain

  C.increased security

  D.speedy deployment

  E.reduced IP and MAC address requirements

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• 4Which two steps are required for a complete Cisco DNA Center upgrade、 (Choose two.)完整的 Cisco DNA Center 升级需要哪两个步骤？ （选择两项。）

  A.automation backup

  B.system update

  C.golden image selection

  D.proxy configuration

  E.application updates

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• 5What is a benefit of data modeling languages like YANG、像 YANG 这样的数据建模语言有什么好处？

  A.They create more secure and efficient SNMP OIDs.

  B.They provide a standardized data structure, which results in configuration scalability and consistency.

  C.They enable programmers to change or write their own applications within the device operating system.

  D.They make the CLI simpler and more efficient.

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• 6An engineer configures a WLAN with fast transition enabled. Some legacy clients fail to connect to this WLAN.Which feature allows the legacy clients to connect while still allowing other clients to use fast transition based 工程师配置启用快速转换的 WLAN。 一些旧客户端无法连接到此 WLAN。该功能允许旧客户端连接，同时仍允许其他客户端使用基于快速转换的

  A.over the DS

  B.802.11k

  C.adaptive R

  D.802.11v

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• 7Which feature does Cisco TrustSec use to provide scalable, secure communication throughout a network、Cisco TrustSec 使用哪个功能在整个网络中提供可扩展的安全通信？

  A.security group tag ACL assigned to each port on a switch

  B.security group tag number assigned to each user on a switch

  C.security group tag number assigned to each port on a network

  D.security group tag ACL assigned to each router on a network

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• 8To increase total throughput and redundancy on the links between the wireless controller and switch, the customer enabled LAG on the wireless controller.Which EtherChannel mode must be configured on the switch to allow the WLC to connect、为了增加无线控制器和交换机之间链路的总吞吐量和冗余，客户在无线控制器上启用了 LAG。 必须在交换机上配置哪种 EtherChannel 模式才能允许 WLC 连接？

  A.Active

  B.Passive

  C.On

  D.Auto

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• 9Which statement about multicast RPs is true、下列关于组播 RP 的说法正确的是？

  A.RPs are required only when using protocol independent multicast dense mode.

  B.RPs are required for protocol independent multicast sparse mode and dense mode.

  C.By default, the RP is needed periodically to maintain sessions with sources and receivers.

  D.By default, the RP is needed only to start new sessions with sources and receivers.

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• 10Which HTTP status code is the correct response for a request with an incorrect password applied to a REST API sessi对于应用到 REST API 会话的密码不正确的请求，哪个 HTTP 状态代码是正确的响应

  A.HTTP Status Code: 200

  B.HTTP Status Code: 302

  C.HTTP Status Code: 401

  D.HTTP Status Code: 504

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