Cisco CCDE 400-007 Questions & Answers

• Question 71:

  DRAG DROP

  Drag and drop the multicast protocols from the left onto the current design situation on the right.

  Select and Place:

  

  Correct Answer:

  

• Question 72:

  DRAG DROP

  Drag and drop the design use cases from the left onto the correct uRPF techniques used to prevent spoofing attacks Not all options are used.

  Select and Place:

  

  Correct Answer:

  

  https://www.ietf.org/rfc/rfc3704.txt#:~:text=Feasible%20Path%20Reverse%20Path%20Forwarding%20(Feasible%20RPF)%20is%20an%20extension,and%20are%20valid%20for%20consideration.

• Question 73:

  You are designing a network for a branch office. In order to improve convergence time, you are required to use the BFD feature Which four routing protocols can you use to facilitate this? (Choose four.)

  A. IS-IS

  B. static

  C. RIP

  D. EIGRP

  E. BGP

  Correct Answer: ABDE

• Question 74:

  A customer asks you to perform a high level review of their upcoming WAN refresh for remote sites The review is specially focused on their retail store operations consisting of 500+ locations connected via mutlipoint IPsec VPN solution. Which routing protocol would be valid but would also be the most restrictive for the expansion of this deployment model?

  A. EIGRP

  B. IS-IS

  C. OSPF

  D. BGP

  Correct Answer: B

• Question 75:

  Which two characteristics apply to firewall transparent mode operations in a firewall solution design? (Choose two.)

  A. Changes in the existing IP addressing and subnets are required

  B. The firewall can participate actively on spanning tree.

  C. Multicast traffic can traverse the firewall.

  D. OSPF adjacencies can be established through the firewall

  E. The firewall acts like a router hop in the network.

  Correct Answer: CD

• Question 76:

  Which mechanism enables small, unmanaged switches to plug into ports of access switches without risking switch loops?

  A. PortFast

  B. UDLD

  C. Root guard

  D. BPDU guard

  Correct Answer: D

• Question 77:

  Refer to the exhibit.

  

  An engineer is designing the traffic flow for AS 111. Traffic from AS 111 should be preferred via AS 100 for all external routes. A method must be used that only affects AS 111. Which BGP attributes are best suited to control outbound traffic?

  A. community

  B. MED

  C. local preference

  D. As path

  Correct Answer: C

• Question 78:

  You are designing the QoS policy for a company that is running many TCP-based applications. The company is experiencing tail drops for these applications. The company wants to use a congestion avoidance technique for these applications. Which QoS strategy can be used to fulfill the requirement?

  A. weighted fair queuing

  B. weighted random early detection

  C. low-latency queuing

  D. first-in first-out

  Correct Answer: B

• Question 79:

  As a network designer you need to support an enterprise with hundreds of remote sites connected over a single WAN network that carries different types of traffic, including VoIP, video, and data applications, which of following design considerations will not impact design decision?

  A. Focus on the solution instead of the problem, which helps to reduce downtime duration

  B. The location of the data collection

  C. What direction the data or flows should be metered

  D. Identify traffic types and top talkers over this link

  Correct Answer: A

• Question 80:

  Software-defined networking architecture is used for cost-effective, adaptable, and easily manageable applications. In which two software-defined networks is SDN commonly used? (Choose two.)

  A. wide area network

  B. mobile network

  C. metro network

  D. application network

  E. control network

  Correct Answer: AB

  NSN already using SDN for their telco https://en.wikipedia.org/wiki/Software-defined_networking#Applications