思科认证思科认证CCIE题库1-50

试卷预览

• 1A client device fails to see the enterprise SSID, but other client devices are connected to it.What is the cause of this issue、客户端设备看不到企业SSID，但其他客户端设备已连接到它。此问题的原因是什么？

  A.The client has incorrect credentials stored for the configured broadcast SSID.

  B.The hidden SSID was not manually configured on the client.

  C.The broadcast SSID was not manually configured on the client.

  D.The client has incorrect credentials stored for the configured hidden SSID.

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• 2VLANs 50 and 60 exist on the trunk links between all switches. All access ports on SW3 are configured for VLAN 50 and SW1 is the VTP server.Which command ensures that SW3 receives frames only from VLAN 50、VLAN 50 和 60 存在于所有交换机之间的中继链路上。 SW3 上的所有接入端口都配置为 VLAN 50，SW1 是 VTP 服务器。哪个命令可以确保 SW3 只接收来自 VLAN 50 的帧？

  A.SW1(config)#vtp mode transparent

  B.SW3(config)#vtp mode transparent

  C.SW2(config)#vtp pruning

  D.SW1(config)#vtp pruning

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• 3In OSPF, which LSA type is responsible for pointing to the ASBR router、在OSPF中，哪种LSA类型负责指向ASBR路由器？

  A.type 1

  B.type 2

  C.type 3

  D.type 4

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• 4A client with IP address 209.165.201.25 must access a web server on port 80 at 209.165.200.225. To allow this traffic, an engineer must add a statement to anaccess control list that is applied in the inbound direction on the port connecting to the web servers.Which statement allows this traffic、IP 地址为 209.165.201.25 的客户端必须访问端口 80 上的 Web 服务器，地址为 209.165.200.225。 要允许此流量，工程师必须向在连接到 Web 服务器的端口上的入站方向应用的访问控制列表中添加一条语句。哪个语句允许此流量？

  A.permit tcp host 209.165.200.225 lt 80 host 209.165.201.25

  B.permit tcp host 209.165.201.25 host 209.165.200.225 eq 80

  C.permit tcp host 209.165.200.225 eq 80 host 209.165.201.25

  D.permit tcp host 209.165.200.225 host 209.165.201.25 eq 80

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• 5Which statement explains why Type 1 hypervisor is considered more efficient than Type2 hypervisor、哪个陈述解释了为什么类型 1 管理程序被认为比类型 2 管理程序更有效？

  A.Type 1 hypervisor is the only type of hypervisor that supports hardware acceleration techniques.

  B.Type 1 hypervisor relies on the existing OS of the host machine to access CPU, memory, storage, and network resources.

  C.Type 1 hypervisor runs directly on the physical hardware of the host machine without relying on the underlying OS.

  D.Type 1 hypervisor enables other operating systems to run on it.

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• 6Which IP SLA operation requires the IP SLA responder to be configured on the remote end、哪个IP SLA操作需要在远端配置IP SLA响应器？

  A.UDP jitter

  B.ICMP jitter

  C.TCP connect

  D.ICMP echo

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• 7Which two methods are used by an AP that is trying to discover a wireless LAN controller、 (Choose two.)尝试发现无线 LAN 控制器的 AP 使用哪两种方法？ （选择两项。）

  A.Cisco Discovery Protocol neighbor

  B.querying other APs

  C.DHCP Option 43

  D.broadcasting on the local subnet

  E.DNS lookup CISCO-DNA-PRIMARY.localdomain

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• 8Which technology provides a secure communication channel for all traffic at Layer 2 of the OSI model、哪种技术为 OSI 模型第 2 层的所有流量提供安全通信通道？

  A.SSL

  B.Cisco TrustSec

  C.MACsec

  D.IPsec

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• 9Which two mechanisms are available to secure NTP、 (Choose two.)哪两种机制可用于保护 NTP？ （选择两项。）

  A.IPsec

  B.IP prefix list-based

  C.encrypted authentication

  D.TACACS-based authentication

  E.IP access list-based

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• 10Which QoS component alters a packet to change the way that traffic is treated in the network、哪个 QoS 组件会更改数据包以更改网络中处理流量的方式？

  A.policing

  B.classification

  C.marking

  D.shaping

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