What are two common sources of interference for Wi-Fi networks、 (Choose two.)Wi-Fi 网络的两个常见干扰源是什么？ （选择两项。）

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• 1When using TLS for syslog, which configuration allows for secure and reliable transportation of messages to its default port、将 TLS 用于 Syslog 时，哪种配置允许将消息安全可靠地传输到其默认端口？

  A.logging host 10.2.3.4 vrf mgmt transport tcp port 514

  B.logging host 10.2.3.4 vrf mgmt transport udp port 514

  C.logging host 10.2.3.4 vrf mgmt transport tcp port 6514

  D.logging host 10.2.3.4 vrf mgmt transport udp port 6514

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• 2Which behavior can be expected when the HSRP version is changed from 1 to 2、当 HSRP 版本从 1 更改为 2 时，会出现哪些行为？

  A.No changes occur because the standby router is upgraded before the active router.

  B.No changes occur because version 1 and 2 use the same virtual MAC OUI.

  C.Each HSRP group reinitializes because the virtual MAC address has change

  D.D.Each HSRP group reinitializes because the multicast address has changed.

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• 3Which protocol does REST API rely on to secure the communication channel、REST API 依赖哪种协议来保护通信通道？

  A.HTTP

  B.SSH

  C.HTTPS

  D.TCP

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• 4Refer to this output.R1# *Feb 14 37:09:53.129: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to upWhat is the logging severity level、请参阅此输出。R1# *Feb 14 37:09:53.129: %LINEPROTO-5-UPDOWN：接口 GigabitEthernet0/1 上的线路协议，将状态更改为日志严重性级别是什么？

  A.notification

  B.emergency

  C.critical

  D.alert

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• 5Which PAgP mode combination prevents an EtherChannel from forming、哪种 PAgP 模式组合会阻止形成 EtherChannel？

  A.auto/desirable

  B.desirable/desirable

  C.desirable/auto

  D.auto/auto

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• 6Which JSON syntax is valid、哪种 JSON 语法有效？

  A.{“switch”: “name”: “dist1”, “interfaces”: [“gig1”, “gig2”, “gig3”]}

  B.{/“switch/”: {/“name/”: “dist1”, /“interfaces/”: [“gig1”, “gig2”, “gig3”]}}

  C.{“switch”: {“name”: “dist1”, “interfaces”: [“gig1”, “gig2”, “gig3”]}}

  D.{‘switch’: (‘name’: ‘dist1’, ‘interfaces’: [‘gig1’, ‘gig2’, ‘gig3’])}

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• 7What 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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• 8Which 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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• 9What 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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• 10Which 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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