Cisco 400-151 - CCIE Data Center Written Exam Exam

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Total 324 questions

Which two statements about VXLAN are true? (Choose two.)

  • A. VXLAN uses a UDP destination port of 4987.
  • B. A VTEP is a virtual or physical device that maps end devices to VXLAN segments.
  • C. Devices that terminate VXLAN tunnels are known as VTEPs.
  • D. VXLAN adds an additional 32 bytes worth of headers.


Answer : BC

Explanation:

Which two security features are supported by NX-API (Choose two.)

  • A. NX-API support certificate-based authentication.
  • B. Users must have appropriate accounts to access the device through NX-API.
  • C. All communication to the device is encrypted when you use HTTPS.
  • D. All communication to the device is encrypted when you use VPN.


Answer : BC

Explanation:

Which three guidelines and limitations of policy-based routing are true? (Choose three.)

  • A. A match command can refer to more than one ACL in a route map for policy-based routing.
  • B. Setting a tunnel interface or an IP address via a tunnel interface as a next hop in a police-based routing policy is not supported.
  • C. The same route map can be shared among different interfaces for policy-based routing as long as interfaces belong to the same VRF instance.
  • D. An ACL used in a policy-based routing route map cannot include a deny statement.
  • E. A policy-based routing route map can have multiple match or set statements per route-map statement.
  • F. Policy-based routing and WCCPv2 are not supported on the same interface if bank chaining is disabled.


Answer : BCD

Explanation:
Policy-based routing has the following configuration guidelines and limitations: "¢ A policy-based routing route mapcan have only one match or set statement per route-map statement. "¢ A match command cannot refer to more than one ACL in a single route-map statement/clause. "¢ Policy-based routing is not supported with inbound traffic on FEX ports. "¢ An ACL used in a policy-based routing route map cannot include a deny statement. "¢ The same route map can be shared among different interfaces for policy-based routing as long as the interfaces belong to the same virtual routing and forwarding (VRF) instance. "¢ Setting atunnel interface or an IP address via a tunnel interface as a next hop in a policy-based routing policy is not supported.
References:

Which statement about VTP bombing is true?

  • A. It occurs because of configuration mismatch on VTPv3 switches. This problem can be avoided using a confirmation management tool.
  • B. It occurs when switches with different VTP versions are connected together. This situation may occur when a new switch is plugged into a stable VTP domain. The MAC address table of the new switch overrides the MAC address table of stable switches causing interruption of service.
  • C. It occurs when a client connects to a switch and launches a distributed denial of service attack against the VTP domain. This attack is possible only ifthe client knows the VTP password.
  • D. It occurs when a server with a higher revision number and a wrong VTP database is inserted into the VTP domain. This situation may occur when a new switch plugged into a stable VTP domain. The incorrect database is propagated to the domain and the earlier stable database is overwritten. D


Answer : Explanation

Explanation:

Which three options are common PTP device types? (Choose three.)

  • A. network clock
  • B. sundials
  • C. boundary clock
  • D. transparent clock
  • E. ordinary clock
  • F. crystal clock


Answer : CDE

Explanation:

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Total 324 questions